I Need Help With This Math Question badly

Answer:

x>8 and x<6

Step-by-step explanation:

well first the values of x-7 have to be greater than 1 or, less than -1

because if x-7=-2  then |-2|=2>1  satisfying the equation

so we have

[tex]x-7>1\\\\x-7+7>1+7\\\\x>8[/tex]

and we have

[tex]x-7<-1\\\\x-7+7<-1+7\\\\x<6[/tex]

to graph it it goes from (-∞,6)∪(8,∞)

Answer:

28 a  −  3 y  +  4

Answer:

Total cost of producing is 2800.

Step-by-step explanation:

Given

Ratio of profit, material cost and production labour is 5:7:13.

Material cost is 840 more than that of labour cost.

To find:

Total cost of producing the article.

Solution:

Cost of producing the article includes material cost and the labour cost.

Profit will not be included in the production cost because profit comes in the picture after the article is sold.

We are given that, the ratio is:

Profit: Material Cost: Production Labour = 5:7:13

So, we can let Material Cost = 7[tex]x[/tex] and

Production Labour = 13[tex]x[/tex]

As per the question statement:

[tex]13x-7x=840\\\Rightarrow 6x=840\\\Rightarrow \bold{x=140}[/tex]

Total cost of producing = Material Cost + Production Labour

Total cost of producing = 7[tex]x[/tex] + 13[tex]x[/tex] = 20[tex]x[/tex] = 20 [tex]\times[/tex] 140 = 2800

So, Total cost of producing is 2800.

Answer: 27.958333333333333333333333333333........

Step-by-step explanation: Use long division method or do rounding method round each number and divide.

Answer:

The answer is 27.9583333333

Step-by-step explanation:

24 goes into 67 two times

24+24=48

67-48=19

add back in the 1

how many times does 24 go into 191

it goes into 191 7.9583333333 times

so final answer 27.9583333333 it might be confusing but

Answer:

Ur mummm u cheater

Step-by-step explanation:

Answer:

There are 7,725 square feet of grass on the trapezoidal field

Step-by-step explanation:

Here in this question, we are interested in calculating the square feet of grass present on the trapezoidal field.

What this question is actually asking us is to calculate the area of the trapezoid-shaped grass field.

To calculate this area, what we need to do

simply is to use the formula for the area of a trapezoid.

Mathematically, the area of a trapezoid can be calculated using the formula;

Area of trapezoid = 1/2 * (a + b) * h

where a and b refers to the length of the parallel lengths of the trapezoid and h refers to the height of the trapezoid.

From the question;

a, b = 81ft and 125 ft

h = 75 ft

Substituting these values, we have :

Area = 1/2 * (81 + 125) * 75

Area = 1/2 * 206 * 75 = 83 * 75 = 7,725 ft^2

Answer:

4

Step-by-step explanation:

Answer:

-13

Step-by-step explanation:

See steps below:

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               Hi my lil bunny!

   ❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙

                 [tex]\boxed{-13}[/tex]

Let's solve your equation step-by-step.

[tex]2(3x+6)=3(x-9)[/tex]

Step 1: Simplify both sides of the equation.

[tex]2(3x+6)=3(x-9)[/tex]

[tex](2) (3x) + (2) (6) = (3)(^{x}) + (3) (-9)[/tex] (Distribute)

[tex]6x + 12 = 3x + -27[/tex]

[tex]6x + 12 = 3x -27[/tex]

Step 2: Subtract 3x from both sides.

[tex]6x + 12 - 3x = 3x - 27 - 3x\\3x + 12 = -27[/tex]

Step 3: Subtract 12 from both sides.

[tex]3x + 12 - 12 = -27 - 12\\3x = -39[/tex]

Step 4: Divide both sides by 3.

[tex]\frac{3x}{3} = \frac{-39}{3}\\x = -13[/tex]

  ❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙

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        Have a great day/night!

                   ❀*May*❀

Answer:

Step-by-step explanation:

9*60+36= 540+ 36= 576 minutes

so it is = 576/ 60 hours

Answer:B=21

Step-by-step explanation:

it is because combined J an N are 105 across from that is the same so x is 21 because 5(x) = 21 u do 105 divided by 5 to get the answer

Answer:

c) 135°

b) 72°

d) 90°

a) 115°

Step-by-step explanation:

A supplementary pair are two angles whose measures added is equal to 180°. Set an equation with the given values plus a number (the other angle) equal to 180:

c) [tex]x+45=180[/tex]

Solve. Subtract 45 from both sides:

[tex]x+45-45=180-45\\\\x=135[/tex]

The supplement is 135°

b) [tex]108+x=180[/tex]

Solve. Subtract 108 from both sides:

[tex]108-108+x=180-108\\\\x=72[/tex]

The supplement is 72°

d) [tex]x+90=180[/tex]

Solve. Subtract 90 from both sides:

[tex]x+90-90=180-90\\\\x=90[/tex]

The supplement is 90°

a) [tex]x+65=180[/tex]

Solve. Subtract 65 from both sides:

[tex]x+65-65=180-65\\\\x=115[/tex]

The supplement is 115°

:Done

==============================================

Work Shown:

1/10 = 0.1

0.1 mile = 7.2 seconds

1 mile = 72 seconds (multiply both sides by 10)

1/72 mile = 1 second (divide both sides by 72)

3600/72 = 3600 seconds (multiply both sides by 3600)

50 miles = 3600 seconds

50 miles = 1 hour

The car's speed is 50 mph

Note: 1 hour = 60 min = 60*60 = 3600 seconds

Answer:

The last option log_7*(8x/9)

Step-by-step explanation:

You can use the rule of logarithms to solve this. In this expression you have addition and subtraction of logs so knowing that you can use multiplication and division to simplify this into a single log.

Answer:

Option (3)

Step-by-step explanation:

Given polynomial is (x³ - 2x² - 13x - 10).

If (x - 5) is a factor of the given polynomial, other factors can be found by the synthetic division.

5) 1      -2     -13      -10

  -       5       15      10

   1       3       2         0

Therefore, other factor of the given polynomial will be (x² + 3x + 2)

And the factored form of the polynomial will be,

(x - 5)(x² + 3x + 2)

Option (3) will be the answer.

Answer:

Not possible.

Step-by-step explanation:

250 = 2 * 5 * 5 * 5

From this you write the square root as 5 * √10  so you would have to use a calculator to get any further.

Answer

Supplementary and ACD and BCD

Step-by-step explanation:

edgenuity

Answer: supplementary & ACD and BCD

Step-by-step explanation: edge2022

Answer:

Where does the graph of the line y = x - 2 intersect the x-axis?

O A. (0, 2)

O B. (2,0)

O C. (0, -2)

0 D. (-2, 0)

C. ( 0 , -2 )

Step-by-step explanation:

I hope this helps

Follow // Followback

The line of y=x-2 intersects the x axis at (2,0).

To find the points where line intersect the x-axis.

Coordinate geometry is defined as the study of geometry using the coordinate points. Coordinate geometry is required to provide a link between algebra and geometry through the use of line and curve graphs.

The x-axis is defined as being at y=0 (look at a graph, the x-axis intersects the y-axis at y=0). Therefore, all you need to do is put in 0 for y, and solve for x.

  y=x-2

 put in 0 for y

 0=x-2

add 2 to both sides

2+0=x-2 +2  

 x=2

Therefore the line of y=x-2 intersects the x axis at (2,0).

Learn more about co-ordinate geometry here:

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Answer:

He has memorized 18 words

Step-by-step explanation:

(3/4)*24 = 18

Answer:

The missing side is 8 ft long

Step-by-step explanation:

According to Pythagoras theorem "It states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides"

mathematically it is stated as

[tex]c^2= a^2+b^2\\\\c=\sqrt{a^2+b^2}[/tex]

Given that

c, hypotenuse= 17 ft

a = 15 ft

b= ?

Applying the Pythagoras theorem formula by inserting our given parameters and solving for b we have

[tex]17^2= 15^2+b^2[/tex]

Making b subject of formula we have

[tex]b^2= 17^2-15^2\\\\b^2= 289-225\\\\b^2= 64\\\\[/tex]

Square root both sides we have

[tex]b= \sqrt{64} \\\\b= 8[/tex]

Hence the missing side is 8 ft long

Answer:

All parts are attached below :)

Answer:

Hey there!

The question is basically asking for you to solve a fraction subtraction problem, and fill in the missing values as you solve.

The given problem is 2/3 - 1/2. However, we can't subtract right now, since the denominators are different.

2/3 can be expressed as 4/6, and 1/2 can be expressed as 3/6.

Thus, the missing denominator in line one is 6 and the missing numerator in line one is 3.

4/6-3/6=1/6.

Thus, the numerator in line two should be 1.

From top to bottom, the numbers in the three boxes should be 6, 3, and 1.

This can be a confusing topic, especially if you're just learning it. Let me know if you need additional help :)

Answer:

[tex]f'(x) = 3-2\cdot x[/tex]

Step-by-step explanation:

Let be [tex]f(x) = -x^{2}+3\cdot x[/tex], such that:

[tex]f'(x) = \frac{f(x+h)-f(x)}{h}[/tex]

Hence,

[tex]f(x+h) = -(x+h)^{2}+3\cdot (x+h)[/tex]

[tex]f(x+h) = -(x^{2}+2\cdot x\cdot h + h^{2})+3\cdot x + 3\cdot h[/tex]

[tex]f(x+h) = -x^{2}+(3-2\cdot x) \cdot h - h^{2}+3\cdot x[/tex]

[tex]f(x) = -x^{2}+3\cdot x[/tex]

Then,

[tex]f'(x) = \frac{-x^{2}+(3-2\cdot x)\cdot h-h^{2}+3\cdot x+x^{2}-3\cdot x}{h}[/tex]

[tex]f'(x) = \frac{(3-2\cdot x)\cdot h-h^{2}}{h}[/tex]

[tex]f'(x) = 3-2\cdot x -h[/tex]

If [tex]h \longrightarrow 0[/tex], then:

[tex]f'(x) = 3-2\cdot x[/tex]

Answer:

Step-by-step explanation:

The question is not complete, i think the correct question is:

Kareem and Kira each opened a savings account today. Kareem opened his account with a starting amount of $770, and he is going to deposit $30 per month. Kira opened her account with a starting amount of $935, and she is going to deposit $45 per month. Let x be the number of months after today

Let us assume that each acre of land on Mars cost $107.

a) For Kareem account, she started with $770 and would deposit $30 per month. Let y represent the money deposited after x month. This can be represented by the equation:

y = 770 + 30x

Since each acre cost $107, 10 acre would cost $1070. Therefore $1070 is needed to be saved. To find the number of months, substitute y = 1070 and solve. Therefore:

1070 = 770 + 30x

1070 - 770 = 30x

30 x = 300

x = 300/30

x = 10

It would take 10 months for Kareem to buy 10 acres of land

b) For Kira account, she started with $935 and would deposit $45 per month. This can be represented by the equation:

y = 935 + 45x

Since each acre cost $107, 10 acre would cost $1070. Therefore $1070 is needed to be saved. To find the number of months, substitute y = 1070 and solve. Therefore:

1070 = 935 + 45x

1070 - 935 = 45x

45 x = 135

x = 3

It would take 3 months for Kira to buy 10 acres of land

Answer:

Option B

Step-by-step explanation:

Taking the derivative of the residual function, then applying the normal equation:

[a; b] = (X'*X)^(X'*y)

with

X = [1 1; 2 1; 3 1; 4 1; 5 1]

X' is transpose of X

y = [11; 8; 4; 1; 0]

[a; b] =  [-2.9 13.5]

Answer and explanation:

Benchmark fractions are fractions that are used as references in measuring other fractions. They are easily estimated and so can be used in measuring more "specific" fractions such as 1/5, 7/9, 3/7, 1/3 etc. If I wanted to measure 1 1/3cm for instance using a calibrated ruler, having centimeter measurements, I would first find 1cm on the ruler and then find half of one centimeter. Seeing that half is bigger than 1/3 but close, I could then estimate 1/3 to be somewhere less than 1/2 but a bit close to it

Given that :-

→ N represent the number of bikes .

→ Weight of container including bikes is 250+23(n-1) pounds.

To Find :-

→ Weight of container when we have 20 bikes.

Solution :-

→ Weight = 250+23(n-1) pounds

Putting the value of n here .

→ Weight = 250+23(20-1)

→ Weight = 250 +23(19)

→ Weight = 250 + 437

An expression is defined as a set of numbers, variables, and mathematical operations. The container weight with 20 bikes in it will be 687.

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

Given that the weight of the container in pounds, including the bikes, can be modeled using the expression 250 + 23 (n-1). Therefore, the container weighs 20 bikes in it will be,

Weight of container = 250 + 23(n - 1)

                                 = 250 + 23(20 - 1)

                                 = 250 + 23(19)

                                 = 250 + 437

                                 = 687

Hence, the container weight with 20 bikes in it will be 687.

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Answer/Step-by-step explanation:

Using [tex] f(x) = 3x^2 - 8x + 2 [/tex], simply plug each value of x into the function to get f(x) values.

Thus, when x = -1

[tex] f(-1) = 3(-1)^2 - 8(-1) + 2 [/tex]

[tex] f(-1) = 3*1 + 8 + 2 = 3 + 8 + 2 [/tex]

[tex] f(-1) = 13 [/tex]

[tex] f(0) = 3(0)^2 - 8(0) + 2 [/tex]

[tex] f(0) = 0 - 0 + 2 = [/tex]

[tex] f(0) = 2 [/tex]

[tex] f(1) = 3(1)^2 - 8(1) + 2 [/tex]

[tex] f(1) = 3*1 - 8 + 2 = 3 - 8 + 2 [/tex]

[tex] f(1) = -3 [/tex]

[tex] f(2) = 3(2)^2 - 8(2) + 2 [/tex]

[tex] f(2) = 3*4 - 16 + 2 = 12 - 16 + 2 [/tex]

[tex] f(2) = -2 [/tex]

[tex] f(3) = 3(3)^2 - 8(3) + 2 [/tex]

[tex] f(3) = 3*9 - 24 + 2 = 27 - 24 + 2 [/tex]

[tex] f(3) = 5 [/tex]

The correct table for the function is the last option.

Answer:

[tex]\huge\boxed{t=-3}[/tex]

Step-by-step explanation:

[tex]9t=10t+3\\\\9t-10t=10t-10t+3\\\\\rightarrow\boxed{-t=3}\\\\\frac{-t}{-1}=\frac{3}{-1}\\\\\boxed{t=-3}[/tex]