2 years ago

Find the area of a rectangle that is 7 cm long and 3 cm wide. You can use the tool to help you solve. 7 cm2 10 cm2 20 cm2 21 cm2

Mathematics

1 answer:

stiks02 [169]2 years ago

8 0

Answer:

21sq

Step-by-step explanation:

multiply the l times the w which would be 3x7 and get 21.

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If √2 = 1.414 then find the value of (√50+√72) please solve

Rus_ich [418]

Given:

$\sqrt{2}=1.414$

To find:

The value of $\sqrt{50}+\sqrt{72}$ .

Solution:

We have,

$\sqrt{50}+\sqrt{72}$

It can be rewritten as

$=\sqrt{2\times 25}+\sqrt{2\times 36}$

$=\sqrt{2}\times \sqrt{25}+\sqrt{2}\times \sqrt{36}$ $[\because \sqrt{ab}=\sqrt{a}\sqrt{b}]$

$=5\sqrt{2}+6\sqrt{2}$

$=11\sqrt{2}$

Putting $\sqrt{2}=1.414$ , we get

$=11(1.414)$

$=15.554$

Therefore, the value of given expression is 15.554.

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2 years ago

A city has 4 new houses for every 8 old houses. If there are 32 new houses in the city, how many old houses are there?

kirza4 [7]

There would be 64 houses

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2 years ago

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In England a persons weight is commonly given in stones. One English stone is equal to 14 pounds. If an English friends tells yo

Ahat [919]

11 * 14 = 154 lbs since 11lbs=1 stone 11 stones =154lbs

3 0

3 years ago

The radius of a sphere is 12 units. Find the volume of the sphere. Write your answer in terms of pi.

stiv31 [10]

Answer:

V = 2304π units³

Step-by-step explanation:

The volume (V) of a sphere is calculated as

V = $\frac{4}{3}$ πr³ ( where r is the radius ) , then

V = $\frac{4}{3}$ π × 12³

= $\frac{4}{3}$ π × 1728

= 4π × 576

= 2304π units³

5 0

2 years ago

Can someone help I will give the brainliest Plz help u will get 50 points

lara [203]

Answer:

B.) 6

2.) 70

3.) 56

Step-by-step explanation:

B.) 2(6) - 6

= 12 - 6

2.) 7(2(3)+4)

=7(6+4)

=42+28

=70

3.) 10(3) + 4(3) + 14

= 30 + 12 + 14

= 42+14

=56

Have a wonderful day

7 0

3 years ago