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3 years ago

Write a equation to show the total cost,t, she will owe

Mathematics

1 answer:

alexgriva [62]3 years ago

7 0

Answer: 250 + 45a = t

this is the answer because we know that the total cost of the testing and the medicine will be 250 but then there is also the cost of the appointment and the appointment adds up to the cost.

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Make a the subject of the formula: V² = U² + 2as<br><br> Can Someone help pls? :D

Scrat [10]

Step-by-step explanation:

V²= U² + 2as

V² - U²= 2as

Divide both sides of the equation by 2s

a= V² - U²/2s (a= square of V minus square of U all over 2s)

6 0

3 years ago

A rectangle whose area is 180 square feet has a width that is 3 feet less than the length. Find the dimensions of the rectangle.

Yuliya22 [10]

Answer:

The length is $15\ ft$

The width is $12\ ft$

Step-by-step explanation:

we know that

The area of rectangle is equal to

$A=LW$

we have

$A=180\ ft^{2}$

$180=LW$ -----> equation A

$W=L-3$ ------> equation B

substitute equation B in equation A and solve for L

$180=L(L-3)$

$180=L^{2}-3L$

$L^{2}-3L-180=0$

using a graphing tool------> solve the quadratic equation

The solution is $L=15\ ft$

see the attached figure

<em>Find the value of W</em>

$W=15-3=12\ ft$

4 0

3 years ago

A bulletin board is 23 square feet. What is the approximate perimeter of the bulletin board? And wants to have an area of 32 squ

miskamm [114]

Answer: The answer to the first question is 20

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

A circular cloud of poison gas from a factory explosion is expanding so that t hours after the explosion the radius of the cloud

diamong [38]

Answer:

6000π m²/h

Step-by-step explanation:

Area of the circular cloud =πr²----------------------------------------- (1)

Radius as a function of time = R(t)=50+20t------------------------ (2)

dA/dt = (dA/dr) x (dr/dt)-----------------------------------------------------(3)

dA/dr = 2πr

dr/dt = 20

After 5 hours, the radius of the cloud will be :

R(5)=50+20(5)

= 150 meters

Substituting into (3)

dA/dt = 2π(150) x 20

= 6000π m²/h

3 0

3 years ago

Use Long Division to answer number 4. Please show all work!

skelet666 [1.2K]

Answer:

2x² + 3x + 4 + (17x + 9) / (x² − 4)

Step-by-step explanation:

Start by setting up the division. Make sure to write all the coefficients, even the zero ones.

x² + 0x − 4 | 2x⁴ + 3x³ − 4x² + 5x − 7

Start by dividing the first term of the dividend (2x⁴) by the first term of the divisor (x²). That's 2x²; it'll be the first term in quotient. Multiply the divisor by 2x²:

2x⁴ + 0x³ − 8x²

Subtract that from the first three terms of the dividend:

3x³ + 4x²

Drop down the next term from the dividend, and start the process all over again.

3x³ + 4x² + 5x

When you finish, the quotient will be 2x² + 3x + 4, and the remainder will be 17x + 9.

4 0

3 years ago