3 years ago

Evaluate the following expression when x=3. 2x+7

Mathematics

1 answer:

xxMikexx [17]3 years ago

6 0

Answer:13

Step-by-step explanation:

2 times 3 is 6 so then we add 7 to get 13

You might be interested in

Ella has gold,silver,and copper wire for stringing beads.she has1 1\2ft.of gold wire,2 1\3ft.of silver wire,and3 3\4ft.of copper

Oksana_A [137]

Ella would have 65/8ft wire all together.

3 0

3 years ago

| 19) -6.5<br> What is the answer

Rashid [163]

Answer:

the answer will be 3.5 i think

Step-by-step explanation:

8 0

3 years ago

Hi! Please help, I'd appreciate it!

Romashka-Z-Leto [24]

The volume of sphere is $\frac{1372}{3}\pi$ feet cubed.

Step-by-step explanation:

Given,

Surface area of sphere = 196π square feet

Surface area of sphere = 4πr²

We will find radius of sphere.

$4\pi r^2=196\pi$

Dividing both sides by 4π

$\frac{4\pi r^2}{4\pi}=\frac{196\pi}{4\pi}\\\\r^2=49$

Taking square root on both sides

$\sqrt{r^2}=\sqrt{49}\\r=7$

The radius is 7 feet.

Volume of sphere = $\frac{4}{3}\pi r^3$

$Volume=\frac{4}{3}\pi (7)^3\\\\Volume= \frac{4}{3}\pi *343\\\\Volume = \frac{1372}{3}\pi$

The volume of sphere is $\frac{1372}{3}\pi$ feet cubed.

Keywords: volume, surface area

Learn more about surface area at:

#LearnwithBrainly

3 0

3 years ago

Answer all please? tysm

8_murik_8 [283]

1.A 2.D 3.B These are the answers I think is the choice to your question.

6 0

3 years ago

Read 2 more answers

I need help please. Only answer if you know

Wewaii [24]

Answer:

Step-by-step explanation:

first do what is in the brackets then the parentheses, then multiply the 3

7 0

3 years ago

Read 2 more answers