what is the value of 3m- 2, if m = 7.

Answers

Answer 1

Answer:

m=3

Step-by-step explanation:

3m-2=7

3(3)-2=7

9-2=7

Answer 2

The Value of the equation is 19.

What is a linear Equation in one variable?

A linear equation is a type of equation in which every variable's degree is exactly one. In one-variable linear equations, there is only one possible solution to the equation and there is only one variable. It appears to be a straight line, either horizontally or vertically, when it is drawn on a graph.

Given equation 3m - 2

and m = 7

substitute the value of m in the equation,

3 x 7 - 2

21 - 2 = 19

Hence the value is 19.

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Related Questions

which two continents are entirely located in the western hemisphere ​

Answers

Answer:

south america and north america

Step-by-step explanation:

Joe's boat rental rents paddle boats for $8.00 and hour and the paddles rent for $5.00 for the day. If David has $45, what is the least amount of hours he could rent the paddle boat?

Answers

Answer:

Least: 1 hour

Maximum: 5 hours

Step-by-step explanation:

Given

Boat hourly rate = $8.00

Paddle daily rate = $5.00

Required

Determine the least hour, David could use the boat

First, we need to represent this as an inequality.

Since David has $45, then

[tex]\$8.00 * x + \$5.00 \leq \$45.00[/tex]

Where x represents the number of hours

Collect Like Terms

[tex]\$8.00 * x \leq \$45.00 - \$5.00[/tex]

[tex]\$8.00 * x \leq \$40.00[/tex]

Divide both sides by $8.00

[tex]x \leq \frac{\$40.00}{\$8.00}[/tex]

[tex]x \leq 5[/tex]

Hence, the least number of hour is 1 hour while the maximum is 5 hours

the radius of a sphere is 7 meters what is the circle's area

Answers

Given :

[tex]\begin{lgathered}\bullet\:\:\textsf{Radius of circle = \textbf{7 meter}}\end{lgathered}[/tex]

[tex]\rule{130}1[/tex]

Digram :

[tex]\setlength{\unitlength}{1mm}\begin{picture}(50,55)\thicklines\qbezier(25.000,10.000)(33.284,10.000)(39.142,15.858)\qbezier(39.142,15.858)(45.000,21.716)(45.000,30.000)\qbezier(45.000,30.000)(45.000,38.284)(39.142,44.142)\qbezier(39.142,44.142)(33.284,50.000)(25.000,50.000)\qbezier(25.000,50.000)(16.716,50.000)(10.858,44.142)\qbezier(10.858,44.142)( 5.000,38.284)( 5.000,30.000)\qbezier( 5.000,30.000)( 5.000,21.716)(10.858,15.858)\qbezier(10.858,15.858)(16.716,10.000)(25.000,10.000)\put(25,30){\line(5,0){20}}\put(25,30){\circle*{1}}\put(29,26){\sf\large{7 m}}\end{picture}[/tex]

[tex]\rule{130}1[/tex]

Solution :

☯ [tex]\underline{\boldsymbol{According\: to \:the\: Question\:now :}}[/tex]

[tex]:\implies\sf Area\:of\:circle = \pi r^2 \\\\\\:\implies\sf Area\:of\:circle = \dfrac{22}{\cancel{7}} \times \cancel{7} \times 7\\\\\\:\implies\sf Area\:of\:circle = 22 \times 7\\\\\\:\implies\sf Area\:of\:circle = 154 m^{2}[/tex]

[tex]\therefore\:\underline{\textsf{Area of circle is \textbf{154}} \:\sf{m^2}}.[/tex]

[tex]\rule{170}{2}[/tex]

Araceli recorded the height (in centimeters) of a pea plant over a 10-day
period for a science experiment. Which equation is the best model of the
data?
30 pints please help

Answers

Answer:B. y=0.5x+0.3

Step-by-step explanation:a. p. e. x.

The slope of the points is closer to 0.5 thus y = 0.5x + 1.2 will be the best approximation thus option (B) is correct.

What is a linear function?

A straight line on the coordinate plane is represented by a linear function.

The formula for a linear function is f(x) = ax + b, where a and b are real values.

In another word, a linear function is a function that varies linearly with respect to the changing variable.

As per the given points,

Let's take two-point (1,1)  and (2,1.5)

The slope associated with the above points will be as,

(1.5 - 1)/(2 - 1) = 0.5

Thus, the line will be y = 0.5x + 0.3

Hence "The slope of the points is closer to 0.5 thus y = 0.5x + 1.2 will be the best approximation".

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WILL GIVE BRAINLIEST
What did they do incorrectly
40 + 70 + ? = 360
110 + ? = 360
-110 -110
? = 250

Answers

In the equation 40+70+?=360, they are trying to find the last angle.

First they would add 40 and 70, which is 110.

So 110+?=360

360-110=?

360-110=250

Well this is wrong, because every angle in a triangle adds up to 180 degrees.

If you are adding up the angles in a quadrilateral, only then it adds up to 360 degrees.

So they did everything right, but they didn't use the right "total degrees"

This is what it was supposed to look like.

40+70+?=180

110+?=180

180-110=?

180-110=70

?=70

♡ Hope this helped! ♡

♡ Also thank you so much for 31 points. ♡

✿ Brainiest is appreciated! ✿

❀ 0ranges ❀

What is the abscissa of origin?

Answers

Answer:

abscissa of origin is 0.

Step-by-step explanation:

The abscissa of a point is the signed measure of its projection on the primary axis, whose absolute value is the distance between the projection and the origin of the axis, and whose sign is given by the location on the projection relative to the origin (before negative; after: positive).

Given the function f(x) = -5x^2 + 2x + 9 find f(1) and f(2)

Answers

Answer:

i hope it will work

Step-by-step explanation:

f(x) = -5 x^2 + 2 x + 9

f(1)=-5(1)^2 +2(1) +9 = 6

similarly

f(2)=-5(2)^2 +2(2) +9  = -7

if its help-full then hit the stars and brain-list it

thanks

NEED HELP ASAP

PLZZZZS????

Answers

Answer: m∠F = 31°

Solution: The triangle's rotation is irrelevant to the measure of its angles. In other words, angles D, E, and F will all stay the same if the triangle is turned ("rotated"). That being said, we know by definition that the interior angles of a triangle add up to 180°. We are given two of the angles, and we are asked to find the third:

m∠D + m∠E + m∠F = 180°48° + 101° + m∠F = 180°149° + m∠F = 180°m∠F = 31°

simplifiy the expression -|-5.(-7)|

Answers

Answer:

-5|-7|

Step-by-step explanation:

[tex]-\left|-5\left(-7\right)\right|\\\\\mathbf{missing\:stepId}=\\\\Refine\:Abs\:Checked\:3Eq,\:\\\\|ax|=a|x|,\:a\ge 0,\:-\left|-7\right|\\=-5\left|-7\right|[/tex]

Answer:

[tex]\Huge \boxed{\mathrm{-35}}[/tex]

Step-by-step explanation:

[tex]\Rightarrow -|-5* (-7)|[/tex]

Multiplying the terms in the absolute value.

[tex]\Rightarrow -|35|[/tex]

The absolute value of a number is the distance between that number and zero.

The absolute value of 35 is 35.

[tex]\Rightarrow -35[/tex]

Subm
What is the point-slope form of the equation for the line with a slope of -2 that passes through the point (4, -6)?

Answers

Answer:

y + 6 = - 2(x - 4)

Step-by-step explanation:

The equation of a line in point- slope form is

y + b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = - 2 and (a, b) = (4, - 6) , thus

y - (- 6) = - 2(x - 4) , that is

y + 6 = - 2(x - 4)

Plz help ASAP WILL MARK BRAINLIEST!!

Answers

Answer:

B

Step-by-step explanation:

It is B because every number, x, you plug in 5x-3, it is y.

Answer:

B

Step-by-step explanation:

If we plug in x = 5 because every chart has x = 5 as a different answer into the equation you will find it equals 22 and only B has 22 as the answer

Write an equation for the nth term of the arithmetic sequence. Then find a50.
1/3 , 1/2 , 2/3 , 5/6

Answers

Step-by-step explanation:

Since the sequence above is an arithmetic sequence

For an nth term in an arithmetic sequence

A(n) = a + ( n - 1)d

where a is the first term

n is the number of terms

d is the common difference

From the question

a = 1/3

d = 1/2 - 1/3 = 1/6 or 2/3 - 1/2 = 1/6

Substitute the values into the above formula

That's

[tex]A(n) = \frac{1}{3} + (n - 1) \frac{1}{6} \\ = \frac{1}{ 3} - \frac{1}{6} + \frac{1}{6} n [/tex]

So the nth term of the sequence is

[tex]A(n) = \frac{1}{6} + \frac{1}{6}n[/tex]

For a50 since we are finding the 50th term

n = 50

So we have

[tex]A(50) = \frac{1}{6} + \frac{1}{6} (50) \\ = \frac{1}{6} + \frac{25}{3} [/tex]

We have the final answer as

[tex]A(50) = \frac{17}{2} [/tex]

Hope this helps you

Help ASAP....anyone please

Answers

Answer:

a(n)= 4*n+1

a(n+1)=5+4*n

Step-by-step explanation:

The sequence   5, 9, 13, 17 is the ariphmetic progression where a(1)=5 is the first member of the progression and the diference is d=9-5=4 (the distance between the neighboring members)

For ariphmetic progression is known that n- term is equal to

a(n)=a(1)+d*(n-1)

So for our case

a(n)=5+4(n-1)=5+4n-4=4n+1

a(n+1)= 5+4(n+1-1)= 5+4n

Find the midpoint between the pair of points.
(7,-2) and (-4, 2)

(1.5, 0)
(12,0)
(0, 1.5)
137

Answers

Answer:

(1.5,0)

Step-by-step explanation:

midpoint coordinate (x+x1/2  , y+y1/2)

x+x1=7-4/2=3/2=1.5

y+y1/2 = 2-2/2=0

how to solve sets in mathematics ​

Answers

Answer:

Sets, in mathematics, are an organized collection of objects and can be represented in set-builder form or roster form. Usually, sets are represented in curly braces {},

For example, A = {1,2,3,4} is a set.

evaluate the expression for the given value of x.
2x-6;x=9

Answers

Answer:

12

Step-by-step explanation:

2x - 6 = ?

x = 9

You substitute x for 9: the value of x.

2(9) - 6 = ?

2 * 9 = 18

18 - 6 = 12

So your answer is 12.

Hope it helps : )

Brainliest pleaseeee

Dalila is mixing paste. For every 1 1/3 cups of water, she uses 2 1/2 cups of flour. How much flour does Dalila need for each cup of water? Show your work.

Answers

Answer:

Flour need for 1 cup of water = [tex]1\frac{7}{8}[/tex] cups

Step-by-step explanation:

Given:

Cups of water = [tex]1\frac{1}{3}[/tex] = 4/3

Cups of flour = [tex]2\frac{1}{2}[/tex] = 5/2

Find:

Flour need for 1 cup of water

Computation:

Flour need for 1 cup of water = Cups of flour / Cups of water

Flour need for 1 cup of water = (5/2) / (4/3)

Flour need for 1 cup of water = 15/8

Flour need for 1 cup of water = [tex]1\frac{7}{8}[/tex]

The perimeter of a patio is 64 feet. The width of the patio is 12 feet and the length of the patio is ( ) x + 6 feet. What is the length of the patio?

Answers

20 feet, 12+12+L+L=64 so you simplify and it becomes 24+L+L=64. Take away 24 from 64 and you get 40. 40 divided by 2 equals 20, and you can plug 20 into the L spots and it all works.

can someone help on 3? i got 455
5(p)13
1x+30
1 • x = 1 • 5 = 5
5 + 30 = 35
35(13) = 455

Answers

Answer:

Hey there!

p(x)=x+30

p(13)=13+30

p(13)=43

5(43)=215

Let me know if this helps :)

Approximate the value of 119√

Answers

Answer:

√119 = 10.908712114636

Francesca graphs the function f(x) = 2x - 3, George graphs the function g(x) = 4x2 – 2 – 1, and Harold graphs the function h(x) = 9(f(x)). Which function does Harold graph?
A. Oh(x) = 1622 - 50x + 38
B. Oh(x) = 8x3 - 142++3
c. Oh(x) = 8r2 - 2x - 6
D. Oh(x) = 4x2 - 12x +9

Answers

Answer: A.  [tex]h(x)=16x^2-50x+38[/tex]

Step-by-step explanation:

Given: Francesca graphs the function  [tex]f(x) =2x - 3[/tex], George graphs the function [tex]g(x) = 4x^2 -x - 1[/tex].

Harold graphs the function [tex]h(x) = g(f(x))[/tex].

i.e. [tex]h(x)=g(2x - 3)[/tex]  [put value of f(x)]

[tex]=4(2x-3)^2-(2x-3)-1\\\\= 4((2x)^2-2(2x)(3)+3^2)-2x+3-1\ \ [(a-b)^2=a^2-2ab+b^2]\\\\= 4(4x^2-12x+9)-2x+2\\\\=16x^2-48x+36-2x+2\\\\=16x^2-50x+38[/tex]

So, Harold graph [tex]h(x)=16x^2-50x+38[/tex]

Hence, the correct option is A.  [tex]h(x)=16x^2-50x+38[/tex]

Need help on 22 on what to do

Answers

Answer:

4

Step-by-step explanation:

[tex]f(x)=-x-11\\\\\frac{f(9)}{f(-6)}\\\\ f(9)= -9-11\\- 20\\\\f(-6) = -(-6)-11\\= 6-11 = -5\\\\\\\frac{f(9)}{f(-6)}\\ \\= \frac{-20}{-5}\\ \\= 4[/tex]

Answer:

4

Step-by-step explanation:

This means that where ever you see x in the function; f(x)= -x-11, you replace it with 9 for the numerator and -6 for the Denominator

=-(9)-11/-(-6)-11

=-9-11÷6-11

=-20÷-5

=4

6 bags cost $16.50 How much is 3 bags

Answers

Answer:

3 bags cost $8.25

Step-by-step explanation:

Proportions:

6 bags  ⇔   $16.50

3 bags   ⇔   $B

B = 16.5*3/6

B = $8.25

Answer:

Step-by-step explanation:

8.25

2 (01.05)
Write the equation of the line that passes through (3,-2) and has a slope of 4 in point-slope form. (2 poin

Answers

Answer:

  y +2 = 4(x -3)

Step-by-step explanation:

Point-slope form of the equation of a line with slope m through point (h, k) is ...

  y -k = m(x -h)

For m = 4 and (h, k) = (3, -2), the equation is ...

  y +2 = 4(x -3) . . . . . matches the first choice

if the volume of a cube is 27 metre cube find one of side​

Answers

All the sides are 3 since volume is L*W*H you get 3*3*3 = 9*3 = 27

PLEASE HELP!!

When was production the lowest???

Answers

Answer:

B. 1995

Step-by-step explanation:

As per the graph the lowest production was in 1995, the production figure was around 203 billion dollars

So the answer choice is B. 1995

PLEASE HELP SUPER URGENT WILLING TO GIVE EXTRA POINTS !!!!! 4-8

Answers

A trinomial has 3 terms. A monomial has 1 term. 5xy^3 has a degree of 4 because x has a degree of 1 and y has a degree of 3; you add the two to get 4. For the third question, your expression is a third degree binomial.

If a silver alloy that costs $6.50 an ounce
is going to be mixed with 30 ounces of a
silver alloy that costs $9 an ounce to
make a mixture that costs $8 an ounce,
how many ounces of the $6.50 an ounce
alloy must be used?

Answers

6.8 ounces would be used?

Answer:

20 is the correct answer

Step-by-step explanation:

you're welcome :)

|-3+(-1)|= simply the expression

Answers

Answer:

4

Step-by-step explanation:

First, solve in the brackets,

-3+(-1)

-3-1

-4

Since it is absolute value, take the minus sign away,

therefore the answer is 4

The volume of a cube is 27 cubic meters. What is the length of one edge of the
cube?

Answers

Answer:

3 meters

Step-by-step explanation:

Step 1: State what is known

Volume of cube is 27 cubic meters

Important formula: Volume of cube = [tex]l^{3}[/tex]

Step 2: Input value into formula and solve for "l"

[tex]27=t^{3} \\\sqrt[3]27}=\sqrt[3]{t^{3} } \\3 = t[/tex]

Therefore the length of 1 edge of the cube is  meters

Length of each edge of cube is 3 metres.

What is the volume of cube?

The volume of a cube defines the number of cubic units, occupied by the cube completely. The volume of cube is found by multiplying the value of the edge with itself three times that is a³.

It is given that volume of cube is 27 cubic metres.

a³ = 27

a = ∛27

a = 3

Hence, length of each side of cube is 3 metres.

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Other Questions
If a 2.2-kg ball is thrown with a velocity of 10m/s what is its KE Read these lines from the poem. So I sang a lay for a brother's ear In a strain to soothe his bleeding heart, What is the effect of the imagery in these lines? It emphasizes that, like the speaker, his friend has experienced a painful life and is need of relief. It develops the idea that the speaker believes that misery is easily overcome with music. It clarifies that, like the speaker, his friend is an admirer of music and its benefits. It conveys the idea that the speaker believes his friend is too sympathetic toward others. Barbara sells iced tea for $1.49 per bottle and water for $1.25 per bottle. She wrote an equation to find the number of bottles she needs to sell to earn $100. 1.25x + 1.49 = 100 What error did Barbara make in writing the equation? Barbaras equation did not consider the number of bottles of water. Barbaras equation did not consider the number of bottles of iced tea. Barbaras equation did not use the correct price for the bottles of iced tea. Barbara's equation did not use the correct total for sales. what atom has a greater number of neutrons Following a peso appreciation relative to the dollar, which of the following results is expected to occur? a. U.S. consumers would benefit, and Mexican producers would benefit. b. U.S. consumers would be hurt, and Mexican producers would benefit. c. U.S. consumers would benefit, and Mexican producers would be hurt. d. U.S. consumers would be hurt, and Mexican producers would be hurt. The Persistent Gardener It was Jilly's last day in the green house. Summer was coming to an end and so was the growing season. School would be starting next week and the fall plants were well enough along to allow Mrs. T. to manage the greenhouses herself. As Jilly worked the plants for the last time, she tried to focus on the new school year instead of the details of the greenhouse. It had been a hard, hot summer, but Jilly was not ready for it to be over. Jilly moved down the tables, tucking a stray hair behind her ear with a gloved and already dirty hand. She'd repotted the last of the rosemary plants and mixed a new batch of potting soil already. Mrs. T. now had enough potting soil to last her through September. Jilly looked at a couple of maiden-hair ferns that were beginning to yellow in their small pots. She loved their lacey fronds and had grown concerned over the last few days that they needed repotting or a boost of fertilizer. She had also worried that she would continue to find chores that needed doing, plants that needed help, right up until the minute she left today. She hated unfinished things. She hated details not being tended to. The sun had been above the trees and blasting the greenhouse for a good hour now. Jilly listened for the familiar whirr of the automatic vents opening. When the greenhouse reached a certain temperature, the vents would open automatically. The vents would have a cooling effect for an hour or so, and then no amount of breeze would put a dent in the heat. Mrs. T. often claimed Jilly must be part reptile as she was able to work longer in the greenhouse than anyone else. The heat just didn't bother her. In fact, Jilly often looked forward to the warmth of the greenhouse and feeling the heat seep into her bones. It felt good to her, but she understood others who found it hard to breathe in 100 degree temperatures. Jilly heard the greenhouse door bang, and looked up from her ferns to see Mrs. T. walking down the aisle with a tray of young plants. Mums, Jilly supposed, the flowers everyone wants for fall. She had helped Mrs. T. take cuttings and plant the small stems in new pots. They were doing nicely from the look of things. "We will keep these in here for now," said Mrs. T. "They are getting too much rain outside." It had been a rainy couple of days. Jilly knew, as well as anyone, that overwatering could kill potted plants quickly. "Do you remember when I overwatered those mint plants?" Jilly asked Mrs. T. "I used to think no one could kill a mint plant," Mrs. T. said, laughing. "Well I am full of surprises, apparently," Jilly replied. Jilly remembered the sad green plants that just kept looking more and more wilted no matter how much water she gave them. It was a beginner's mistake, and Jilly had been so embarrassed for making it. "That you are," replied Mrs. T. "But I know you learned a lesson you won't ever forget." "Of course. Herbs like their roots damp, not flooded," Jilly answered. "Well that is not the lesson I was thinking of," Mrs. T. said. Jilly wondered for a minute what the lesson could be. She straightened the rows of geraniums in front of her, picking up one or two to check for aphids under the leaves. 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"My pleasure, of course, dear," Mrs. T. replied. "My hope for you, as for all my assistants over the years, is that you will learn as much about yourself as you do about growing plants." Recalling her thoughts all morning, about what she enjoyed about her summer job, Jilly realized she knew much more than just how to not drown the mint. Which lines from the text best describes the conflict in the story? (5 points) Select one: a. She hated unfinished things. She hated details not being tended to. b. The sun had been above the trees and blasting the greenhouse for a good hour now. c. Jilly heard the greenhouse door bang, and looked up from her ferns. d. Mrs. T. often claimed Jilly must be part reptile as she was able to work longer in the greenhouse than anyone else. plz help ASAP !! will mark u brainlist ic50B(2x + 260 )O A. OB. 2C.5OD.7 Use the drop-down menus to explain how Angelinashould complete this process.What is her next step?What should she do next?What should she do last? 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