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3 years ago

What is the answer to 4(x+2)+40=-2x ?

Mathematics

1 answer:

Dmitry [639]3 years ago

4 0

Answer: x = -8

Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable.

Hope this helps you out! ☺

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Find the axis of symmetry for f(x)=-3x^2+5x-6

Andreyy89

Answer:

x= -5/6

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Find the surface area of a cylinder with a radius of 5 cm and a height of 30 cm. Use 3.14

Juli2301 [7.4K]

Whole formula 2*pi*radius^2 + 2*pi*radius*height:

157+942= 1099

SA= 1099

3 0

3 years ago

A right prism has a volume of 65 cubic inches. The prism is enlarged so its height is increased by a factor of 20, but the other

Helga [31]

Answer:

Volume of a right prism = 65 cubic inches

Its height is increased by a factor of 20.

To find:

The new volume of the prism if the other dimensions do not change.

Solution:

The volume of a prism is:

$Volume=Bh$

Where, B is the base area and h is the height.

A right prism has a volume of 65 cubic inches.

$65=Bh$

The height of prism is increased by a factor of 20. So, the new volume is:

$Volume=B(20h)$

$Volume=20(Bh)$

$Volume=20(65)$

$Volume=1300$

The volume of the new prism is 1300 in³.

Therefore, the correct option is B.

8 0

2 years ago

X:y = 9:7 Form an equation that links x and y

sleet_krkn [62]

Equations are expressions with equal values

The equation that links x and y is $7x = 9y$

<h3>How to determine the equation</h3>

The ratio is given as:

$x : y = 9 : 7$

Express the ratio, as a fraction

$\frac xy = \frac 97$

Cross multiply

$7 *x = 9 * y$

Evaluate the product

$7x = 9y$

Hence, the equation that links x and y is $7x = 9y$