4 years ago

How to get a 22 degree angle in a right angle triangle?

1 answer:

4 0

One way would be to draw 2 perpendicular lines whose lengths are in the ration of the tangent of 22 degrees.

tan 22 = 0.4040

So draw a line AB of length 10 inches, then using a compass construct a perpendicular line at point A Then measure a length of 4.04 inches along this line to point C. Then join CB.

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If the diagonals of a quadrilateral bisect each other, then the quadrilateral is a parallelogram.

Dima020 [189]

The diagonals of the parallelogram bisect each other,

so this statement is true

5 0

4 years ago

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If f(x)=-2+1 and x(t)=t-3, find f(x(2))

maks197457 [2]

F(x)=-2+1??? Or f(x)=-2x+1

6 0

3 years ago

Shawn bought a hat for $17.00, shorts for $24.00 and a shirt for $12.00. How much did he spend in all?

lakkis [162]

Answer:

$53

Step-by-step explanation:

17+24=41

41+12=53

3 0

3 years ago

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In a school,3/5 of the pupils were boys and there were 240 girls. How many boys were in the school.

zepelin [54]

Answer:

If 2/5 is 240 then 1/5 is 120..multiply 120 by 5 which is 600 so...

600=total

Then..multiply 120 by 3 which will give the 3/5 boys which is 360 so...

360 boys

Step-by-step explanation:

8 0

3 years ago

In how many ways can two integers be selected from 60 consecutive positive integers so that their sum is even?

padilas [110]

Using the combination formula, it is found that the integers can be chosen in 870 ways.

<h3>What is the combination formula?</h3>

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by:

$C_{n,x} = \frac{n!}{x!(n-x)!}$

The resulting sum will be even if both numbers are even(2 from a set of 30) or if both numbers are odd(also 2 from a set of 30), hence:

$T = 2C_{30,2} = 2\frac{30!}{2!28!} = 870$

The integers can be chosen in 870 ways.

You can learn more about the combination formula at brainly.com/question/25821700

4 0

2 years ago