Answer: first problem: 2w-5w
Second problem: one side increases by 4 and another side decreases by -22.
Step-by-step
For the first question: make a rectangle and label the length 2w-5 and the width 5. Next, write w(2w-5). Draw a arrow from w to 2 and another arrow from w to 5. Lastly write 2w^2-5w. Answer: 2w^2-5w
2nd question: make a rectangle. For the length write 10 and for the width write 8 and inside the rectangle write 80. Then draw a arrow and on top of the arrow write +88 and then drew another rectangle and for the length write x+10 and for the width write x+8 and inside the rectangle write 168. Then write this on the bottom of the rectangles;
(x+10) (x+8) =168
X^2+8x+10x+80=168
-168. -168
X^2+18x-88=0
Then make a T-chart and on one of the top column write (x-4) and on the other top column write (x+22)=0
And on the bottom of (x-4) write X=4 and in parenthesis write (increase)
And on the bottom of (x+22)=0 write X=-22 and in parenthesis write (decrease)
Then on the area so of the T-chart write 88 and underline it and write -4+22=18 D. S large +.
-Tell me if you get what I am saying. And good luck!
PEMDAS is used to help us remember the "order of operations." What do we use to help us remember the right triangle trig formulas? Hint: It start with s and ends with a.
Answer:
SOH CAH TOA
(Sine,opposite,Hypotenuse) - SOH
(Cosine, adjacent, Hypotenuse) - CAH
(Tangent,opposite,adjacent) - TOA
Step-by-step explanation:
Answer:
SOH CAH TOA
is the answer
Which is true about the product of 3/8 and 7/2. 1.The product is less than 3/8. 2.The product is greater than 1/8 and less that 1/2. 3.The product is greater than 7/2. 4.The product is greater that 3/8 and less than 7/2.
Answer:
4.The product is greater that 3/8 and less than 7/2.
Step-by-step explanation:
The product of 3/8 and 7/2 is:
[tex]\frac{3}{8} * \frac{7}{2} \\\\= \frac{21}{16} = 1\frac{5}{16}[/tex]
This number is greater than 3/8.
It is greater than 1/8 but not less than 1/2.
This number is less than 7/2.
This number is greater than 3/8 and it is less than 7/2.
Hence, the correct options is 4.
Adele mixed 8.3 grams of salt into a pot of soup she was cooking. Before she served the soup, Adele added 6.6 grams of salt. How much salt did Adele put into the soup in all? grams
Answer:
14.9 grams
Step-by-step explanation:
8.3+6.6=14.9
A locker combination consists of two non-zero digits, and each combination consists of different digits. Event A is defined as choosing an even number as the first digit, and event B is defined as choosing an even number as the second digit. If a combination is picked at random, with each possible locker combination being equally likely, what is P(A and B) expressed in simplest form? A. 1/6 B. 5/18 C. 1/2 D. 5/9
Answer:
B. 5/18
Step-by-step explanation:
We have to digits taking the 0, they are as follows:
1, 2, 3, 4, 5, 6, 7, 8, 9
In other words, there are 9 in total.
Odd are 5 (1, 3, 5, 7, 9)
Pairs are 4 (2, 4, 6, 8)
Now, we have that the probability of drawing an odd one would be: 5/9
and that also, already selected that number, there would be 8 in total.
Therefore, drawing another number that is even the probability would be: 4/8
So the final probability is:
(5/9) * (4/8) = 20/72, we simplify (divide by 4) and we have 5/18 left
In other words, the answer is B. 5/18
Answer:
b
Step-by-step explanation:
Hello I need help on this question. After you have answered this please can you explain it to me so the i can do these questions in the future. Thank you stay safe
Answer:
4, 5 and 27.
Step-by-step explanation:
There are 2 cube numbers between 0 and 36 .
They are 8 and 27.
36 - 27 = 9 so the other 2 numbers could be 4 and 5 because they are both factors of 20.
36 - 8 = 28 whose factors are 2 * 2 * 7 which are not factors of 20.
what are the domain and range of f(x)=log x-5
Answer:
Is this what you needed?
Which are steps in the process of completing the square used to solve the equation? 1 = 2(x2 + 2x) 1 = 2x2 + 4x 2 = 2(x2 + 2x + 1) 3 = 2(x + 1)2 2 = 2(x + 1)2
Answer: 1 2 and 4 hope this helps
Step-by-step explanation:
Answer:
yes, the correct answers are:
A) 1 = 2(x2 + 2x)
B) 1 = 2x2 + 4x
D) 3 = 2(x + 1)2
Step-by-step explanation:
got it correct in edg 2020 hope this is of help :)
Jorge is making 6 large salads and 4 small salads how many cherry tomatoes does he need.
RELATED QUESTION..........
BCGF is a quadrilateral, angles sum to 360 degrees.
B+C+G+F=360
B and G are right angles, formed by a radius and a tangent.
90+C+90+F=360
C+F=180
C and F are supplementary.
2x + 146 + 4x + 238 = 180
6x + 384 = 180
6x = -204
x = -34
Answer: -34, second choice
Only do question 5
50 points
Topic: Percentage
Answer:
.2%
.6%
40.25%
Step-by-step explanation:
There are 100 blocks in a grid so a complete grid is 100 %
a 2/10 out of 1 block is shaded
2/10 out of 100
.2 out of 100
out of 100 means percent
.2 %
b 3/5 out of 1 block is shaded
6/10 out of 100
.6 out of 100
out of 100 means percent
.6%
c 40 /100 + 1/4 out of 1 block
40% + .25 %
40.25%
An octopus weighed 5 6 kilograms. After two weeks, its weight was increased by 3 10 kilograms. But afterward, it lost 1 5 kilograms in weight as it was sick. What is its current weight?
Answer:
The current weight of the octopus is:
[tex]w = \frac{14}{15}\,kg[/tex]
Step-by-step explanation:
The current weight is determine by addition and subtraction of rational numbers:
[tex]w = \frac{5}{6}\,kg + \frac{3}{10}\,kg -\frac{1}{5}\,kg[/tex]
[tex]w = \frac{50 + 18}{60}\,kg - \frac{1}{5}\,kg[/tex]
[tex]w = \frac{68}{60}\,kg - \frac{1}{5} \,kg[/tex]
[tex]w = \frac{17}{15}\,kg - \frac{1}{5}\,kg[/tex]
[tex]w = \frac{85-15}{75} \,kg[/tex]
[tex]w = \frac{70}{75}\,kg[/tex]
The current weight of the octopus is:
[tex]w = \frac{14}{15}\,kg[/tex]
What is the volume of the rectangular prism? 21 mm3 76.5 mm3 80 mm3 267.75 mm3
Please consider the complete question.
A prism has a length of 9 millimeters, height of 3 and one-half millimeters, and width of 8 and one-half millimeters. What is the volume of the rectangular prism?
We know that volume of rectangular prism is product of its length, width and height.
[tex]V=\text{Length}\times\text{Width}\times \text{Height}[/tex]
[tex]V=9\text{ mm}\times8\frac{1}{2}\text{ mm}\times 3\frac{1}{2}\text{ mm}[/tex]
Let us convert our given mixed fraction into decimal.
[tex]V=9\text{ mm}\times8.5\text{ mm}\times 3.5\text{ mm}[/tex]
[tex]V=267.75\text{ mm}^3[/tex]
Therefore, the volume of the given prism would be [tex]267.75\text{ mm}^3[/tex] and option D is the correct choice.
Answer:
D
Step-by-step explanation:
Which equation represents the sum of eight times a number and seven is twice the number
Answer:
8n + 7 = 2n
Step-by-step explanation:
12 is 3/4 of what number
Answer:
Step by step: you need to divide the top and multiple by the bottom. 12 divided by 3 is 4, and 4 times 4 is 16
Answer:
16
Step-by-step explanation:
The formula to solve for this is [tex]\frac{is}{of}=\frac{percent}{100}[/tex]
Here the 12 is our "is", the "of" is the [tex]\frac{3}{4}[/tex] , and the "percent" is what we are solving for so we can replace it for "x"
So now replacing our values we have [tex]\frac{12}{\frac{3}{4} } =\frac{x}{100}[/tex]
Cross multiplying we get [tex](12)(100) = (x)(\frac{3}{4} )[/tex]
Which then simplifies to
Then multiplying both sides by 4 to get rid of the fraction we get 4800% = 3x
The we need to divide by 3 and we get 1600% = x
Now this is in a percentage, so we need to divide 1600 by 100 to turn it into a whole number which comes out to x = 16
What force is necessary to accelerate a 1,350 kg car at a rate of 38 m/s??
35.53 N
5,130 N
1.388 N
51.300 N
Answer:
Force, F = 51300 N
Step-by-step explanation:
We have,
Mass of a car is 1350 kg
Acceleration of the car is 38 m/s².
It is required to find the force required to accelerate the car. The force acting on the object is given by the formula as follows:
[tex]F=ma\\\\F=1350\ kg\times 38\ m/s^2\\\\F=51300\ N[/tex]
So, the force of 51300 N is required to accelerate the car.
Find the sum. 1/6+ √6
Answer:
2.6
Step-by-step explanation:
Answer:
2.6161564..
Step-by-step explanation:
For this week only, you can buy a Dell for $2988, including taxes. Included in the offer is a finance option for 4 years at an annual percentage rate of 3.5%. Find the monthly payment.
Answer:
$66.80
Step-by-step explanation:
The monthly payment can be computed using the pmt formula in excel spreadsheet as shown below:
=pmt(rate,nper,-pv,fv)
the rate is the interest rate of 3.5% divided by 12 months to show interest rate per month
nper is the number of months it would take to complete the payments which is 4 years multiplied by 12 months i.e 48 months
pv is the cost of the gadget at $2,988
fv is the sum of all month payments which is not unknown
=pmt(3.5%/12,48,-2988,0)=$66.80
Please help with this question
In a symmetric histogram, you have the same number of points to the left and to the right of the median. An example of this is the distribution {1,2,3,4,5}. We have 3 as the median and there are two items below the median (1,2) and two items above the median (4,5).
If we place another number into this distribution, say the number 5, then we have {1,2,3,4,5,5} and we no longer have symmetry. We can fix this by adding in 1 to get {1,1,2,3,4,5,5} and now we have symmetry again. Think of it like having a weight scale. If you add a coin on one side, then you have to add the same weight to the other side to keep balance.
How would you solve dy/dx = 4x - 2, y(-1) = 1 using differential equations?
Answer:
y=2(x square)-2x-3
Step-by-step explanation:
Let dy with y varibles in a hand
And dx with x variables on the other hand
dy=(4x-2)dx
Then by integration
y=2(square x)-2x+constant
Then substitute by x=-1 and y=1 to find the value of the constant
1=2(1)-2(-1)+ constant
Then constant=-3
Then the equation is
y=2(x square)-2x-3
what is (18-7)+(5+7)
Answer:
its 23!
Step-by-step explanation:
18-7=11
5+7=12
11+12=23!
The ladder of a slide forms a 67 degree angle with the ground. The distance from the top of the ladder to the bottom of the ladder is 10 feet. The slide is 15 feet long. What angle does the slide make with the ground?
A. 71.9
B.47.9
C.37.9
D.23.0
Answer:
71.9 i think
Step-by-step explanation:
A country's population in 1991 was 26 million.
In 1999 it was 28 million. Estimate
the population in 2006 using the exponential
growth formula. Round your answer to the
nearest million.
P = Aekt
Answer:
30 million
Step-by-step explanation:
i just spared my question to get the answer. it is 30 million. have a good day.
The estimated population in 2006 was 33 million.
What is the exponential function?Exponential function, as its name suggests, involves exponents. But note that, an exponential function has a constant as its base and a variable as its exponent but not the other way round.
The exponential growth formula is:
Pn = Po × (1 + r)ⁿ⁻¹
Where:
Pn = the population at time n
Po = the population at time 0
r = the rate of growth
n = the number of years after time 0
In this case, Po = 26 million, n = 15 (2006 - 1991 = 15 years), and r can be calculated as follows:
Pn = 28 million
Po = 26 million
n = 15
r = (Pn - Po) / (Po × n)
r = (28 - 26) / (26 × 15)
r = 0.0077
Therefore, the population in 2006 can be calculated as follows:
P2006 = 26 × (1 + 0.0077)¹⁵
P2006 = 33.02 million
Therefore, the estimated population in 2006 was 33 million.
Learn more about the exponential function here:
brainly.com/question/11487261.
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Find the solution to this system:
Equation 1: 5x – 2y = -11 (2)
Equation 2: -2x + 5y = 17
Step #2
Multiplying Equation 2 by will create additive
inverses for the x-coefficients.
Answer:
Step 1: Equation 1 can be multiplied by 2, Multiplying Equation 2 by 5
Step 2: divide by 21
Step 3: substitute 3 for y in one of the equations
Step 4: add 6
Step 5: divide both sides of the equation by 5
Step-by-step explanation:
The solution for the given set of equation 5x - 2y = -11 and -2x + 5y = 17 is x = -1 and y = 3.
What is an equation?An equation is a combination of different variables, in which two mathematical expressions are equal to each other.
The given set of equation is,
5x - 2y = -11 (1)
-2x + 5y = 17 (2)
Find the value of x from equation (2),
-2x + 5y = 17
2x = 5y - 17
x = (5/2)y -17/2
Substitute the value of x in equation (1),
5((5/2)y -17/2) - 2y = -11
25y/2 - 85/2 - 2y = -11
21y/2 = 63/2
y = 3
Substitute the value of y in equation (2) to get the value of x,
-2x + 15 = 17
x = -1
The value of x is -1 and y is 3.
The additive inverse for the x coefficient in equation (2) is 2x.
To know more about Equation on:
https://brainly.com/question/187506
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A quadrilateral with 90 degree angles is shown. The lengths of the left and right sides are 10 and 2 y + 4. The lengths of the top and bottom sides are 18 and 10 + 2 x. What is the value of x? 3 4 6 8
Answer:
4
Step-by-step explanation:
i just answered it.
The value of the variable x will be 4. Then the correct option is B.
What is a quadrilateral?It is a polygon with four sides. The total interior angle is 360 degrees.
A quadrilateral with 90 degree angles.
If all the angles are right angle, then the quadrilateral should be either rectangle or square.
The lengths of the left and right sides are 10 and 2y + 4.
The lengths of the top and bottom sides are 18 and 10 + 2x.
If the adjacent side of the rectangle are same, then the rectangle will become square.
So, the quadrilateral is a rectangle.
Opposite sides of the rectangle are congruent.
Then the value of the variable x will be
10 + 2x = 18
2x = 18 – 10
2x = 8
x = 8 / 2
x = 4
The value of the variable x will be 4.
Then the correct option is B.
More about the quadrilateral link is given below.
https://brainly.com/question/13805601
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You roll a fair 6-sided die.
What is P(roll greater than 6)?
If necessary, round your answer to 2 decimal places.
Answer:
1/3
Step-by-step explanation:
Emilio worked for 19.5 hours. He earned $497.25.
How much did Emilio earn per hour?
A: 26.16
B: $25.50
C: $20.88
B: $20.37
Answer:
B
Step-by-step explanation:
497.25/19.5=25.50
Answer:
B. $25.50
Step-by-step explanation:
if Emilio worked for 19.5 hours to earn $497.25 then how much wldid he earn perhour? ylwhen you put this in equation form
19.5h=$497.25
1h=? (so you crisscross them)
so 1h×$497.25÷19.5h (hour is divided by itself=1)
so Emilio earned $25.50 per hour.
Use the Pythagorean theorem to find b .
Answer:
b = 5
Step-by-step explanation:
We can use the Pythagorean theorem
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
12^2 + b^2 = 13^2
144+b^2 =169
Subtract 144 from each side
144-144+b^2 = 169-144
b^2 = 25
Take the square root on each side
sqrt(b^2) = sqrt(25)
b = 5
Answer:
B= 5
Step-by-step explanation:
3(x + 2) + 4(2x - 1) = 5(x - 2)
may I ask how to do
????????
Answer:
it's 2 I already took the quiz
What is the vertex of the parabola with the equation y=15x2+2x−8?
Answer:
Step-by-step explanation:
[tex]y=15x^2+2x-8\\\mathrm{Parabola\:equation\:in\:polynomial\:form}\\\mathrm{The\:vertex\:of\:an\:up-down\:facing\:parabola\:of\:the\:form}\:y=ax^2+bx+c\:\mathrm{is}\:x_v=-\frac{b}{2a}\\\mathrm{The\:parabola\:params\:are:}\\a=15,\:b=2,\:c=-8\\x_v=-\frac{b}{2a}\\x_v=-\frac{2}{2\cdot \:15}\\\mathrm{Simplify\:}-\frac{2}{2\cdot \:15}:\quad -\frac{1}{15}\\x_v=-\frac{1}{15}\\\mathrm{Plug\:in}\:\:x_v=-\frac{1}{15}\:\mathrm{to\:find\:the}\:y_v\:\mathrm{value}\\y_v=-\frac{121}{15}\\[/tex]
[tex]\mathrm{Therefore\:the\:parabola\:vertex\:is}\\\left(-\frac{1}{15},\:-\frac{121}{15}\right)\\\mathrm{If}\:a<0,\:\mathrm{then\:the\:vertex\:is\:a\:maximum\:value}\\\mathrm{If}\:a>0,\:\mathrm{then\:the\:vertex\:is\:a\:minimum\:value}\\a=15\\\mathrm{Minimum}\space\left(-\frac{1}{15},\:-\frac{121}{15}\right)[/tex]
Count the possible combinations of r letters chosen from the given list P.Q,R,S,T,U; r = 2
Answer:
There are 30 possible combinations of picking two letters.Step-by-step explanation:
The combinations are defined as
[tex]C^{r}_{n}=\frac{n!}{(n-r)!}[/tex]
Where [tex]n[/tex] is the total number of elements and [tex]r[/tex] is the number of letter we are gonna picke, which is two. Using this information, we have
[tex]C^{2}_{6}=\frac{6!}{(6-2)!}=\frac{6!}{4!}=\frac{6 \times 5 \times 4!}{4!}=30[/tex]
Therefore, there are 30 possible combinations of picking two letters.