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2 years ago

1. There are always twice as many girls as boys in school. Mathematical expression

Mathematics

2 answers:

Airida [17]2 years ago

8 0

Answer:

Boys x 2 = Girls

Step-by-step explanation:

If there are twice as many girls in school as boys than take the number of boys and multiply that by 2. For example if there are 400 boys in school and there are twice as many girs your equation would, 400 x 2 = 800 girls.

posledela2 years ago

5 0

Girls x 2 = boys because 2 girls make a boy

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Evaluate csc(-315°).

Maru [420]

Answer:

$\frac{2}{\sqrt{2} } = \sqrt{2}$

Step-by-step explanation:

Notice from the attached image that -315 degrees is the same as 45 degrees.

Recall as well that the csc function is defined as the reciprocal of the sine function: $csc(x)=\frac{1}{sin(x)}$

Then, you need to evaluate $\frac{1}{sin(45)} = 1/\frac{\sqrt{2} }{2} = \frac{2}{\sqrt{2} } =\sqrt{2}$

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3 years ago

Given that triangle abc ~ def, solve for x A.6 B.3 C.2 D.4

kipiarov [429]

ABC and DEF are similar

AB/AC = DE/DF

30/24 = 5/x

30x = 24 * 5

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Answer

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3 years ago

Read 2 more answers

The area of a circle with radius r is given by A = π r2. Find the area of a circle with radius 7 centimeters. Use 3.14 for π..

scZoUnD [109]

Step-by-step explanation:

Hey there!

Given;

Radius of a circle (r) = 7cm

Now;

We know that;

Area of circle (a) = π*(r^2)

= 3.14*(7^2)

= 3.14*49

= 153.86 cm^2

Therefore, the area of a circle is 153.86 cm^2.

Hope it helps...

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3 years ago

Will mark you brainliest if you help me

nydimaria [60]

If you do 405.54-340.00=65.54. So the answer would be D, $65.54 over budget. Hope you have an amazing day! let me know if you need help with anything else! :D

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3 years ago

4 cubed 2 divided by 4

maksim [4K]

Answer: 32

Step-by-step explanation:

4 cubed 2 divided by 4

Simply is

4 to the power 3 multiplied by 2 divided by 4

4*4*4*2/4

128/4= 32

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3 years ago