MATHEMATICS HIGH SCHOOL

8 = -8
A True
© False
????

Answers

Answer 1

Answer:

Answer:

FALSE

Step-by-step explanation:

Answer 2

Answer:

Answer:

False

Step-by-step explanation:

8 does not equal -8 becsue one is positive and the other is negative

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Round to the nearest whole number: 720 over 11

Answers

For this, you need to divide: 720 divided by 11. That would be 65.45, but the instructions say to round to the nearest whole number, which is 66. So your answer is 66!

In a right triangle, one acute angle is 22º and the hypotenuse is 70 cm. Find thelengths of the legs and the other angle measure.

Answers

Answer:

Adjacent leg (In relation to the angle that is measure 22 degrees)= 70*Cosine 22 or 64.9; Opposite leg (In relation to the angle that is measure 22 degrees)=70* Sin 22 or 26.22

Step-by-step explanation:

The other angle measure is 90-22 or 68.

To find the length of the adjacent leg (a) use cosine. Remember cosine is Adjacent leg over hypotenuse.

Cosine 22= a/70- Multiply by 70

70* Cosine 22=a or about 64.9

To find the length of the opposite leg (o) use sine. Remember sine is Opposite leg over hypotenuse

Sine 22= o/70

70*Sine 22=o

o= about 26.22

Solve photo question. Mathematics

Answers

We can substitute each and check if it gives us the answer 13

1st one:
4(1)+3(6) = 13
4 + 18 = 13
22 ≠ 13
It does not satisfy the equation!

therefore, The last one is the answer after checking them all.

4(4) + 3(-1) = 13
16 - 3 = 13
13 = 13

(4, -1)

(4,-1). 4x+3y=13. You do 4(4)+3(-1)=13. hope that helps.

If 60% of a numbet is 18,what is 89% of the number

Answers

what is this number?

if 60%x=18

then

$(60)/(100)$ x=18

$(6)/(10)$ x=18
$(3)/(5)$ x=18
3x=18*5
x=6*5
x=30

and 89% of it:
$(89)/(100)$ *30= $(89)/(10)$ *3=26.7 which is the answer

The following parallelogram is not drawn to scale.Find the unknown angle:
142⁰
a
za =

Answers

The twο adjacent angles in the parallelοgram are 142 degrees and 38 degrees, and the οppοsite angles are alsο equal tο 142 degrees and 38 degrees.

What are the supplementary angles?

Supplementary angles are thοse angles that sum up tο 180 degrees. Fοr example, angle 130° and angle 50° are supplementary angles because the sum οf 130° and 50° is equal tο 180°.

In a parallelοgram, οppοsite angles are equal and supplementary, which means they add up tο 180 degrees. Therefοre, the οppοsite angle tο the given angle οf 142 degrees is alsο supplementary tο it and equal tο0

180 - 142 = 38 degrees.

Since οppοsite sides οf a parallelοgram are parallel and cοngruent, the adjacent angles are alsο cοngruent. Therefοre, the οther angle adjacent tο the given angle οf 142 degrees is alsο equal tο 142 degrees.

Hence, the twο adjacent angles in the parallelοgram are 142 degrees and 38 degrees, and the οppοsite angles are alsο equal tο 142 degrees and 38 degrees.

To learn more about supplementary angles visit:

brainly.com/question/12919120

#SPJ1

Complete question:

A system of equations is given. Equation 1: 4x-6y=10 Equation 2: 9x+2y=7