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Maru [420]
3 years ago
15

Can someone do question 13 please

Mathematics
2 answers:
Artyom0805 [142]3 years ago
8 0

Answer:

A = 4/7

B = 2/3

C = 2/5

Step-by-step explanation:

It's Easy.

Katen [24]3 years ago
8 0

Answer:

A is 4/7

B is 2/3

C is 2/5

Step-by-step explanation:

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Please help me find the value of x the answer must be exact
jenyasd209 [6]

Answer:

x=11

Step-by-step explanation:

This is a 45°-45°-90° triangle. The two legs are the same length, and the hypotenuse is that length times the square root of two:

leg=x\\hypotenuse=x\sqrt{2}

Therefore, the value of x is 11.

You can double-check using the sine ratio:

sineX=\frac{opposite}{hypotenuse}

Insert the values:

sin45=\frac{x}{11\sqrt{2} }

Insert the equation into a calculator:

x=11

:Done

*It's important to know that, when working with trigonometry ratios, the hypotenuse is never considered the adjacent or opposite side, and the 90° angle is never used in the ratios.

6 0
3 years ago
Tamara says she used the GCF to factor the expression 21x + 56xy as 7(3x + 8xy). Is she correct? Explain.
coldgirl [10]

Answer:

Tamara incorrectly factored the whole expression.

Step-by-step explanation:

Note that

•21x=3·7·x;

•56xy=2·2·2·7·x·y.

Mark in bold all common factors, then GCF(21x,56xy)=7·x=7x.

Thus,

21x+56xy=7x(3+8y).

Hence, Tamara correctly found the GCF of numbers 21 and 56, but incorrectly factored the whole expression.

6 0
2 years ago
NO LINK ANSWERS
Temka [501]

Answer:

16 children and 11 adults

Equation 1: a + c = 27

Equation 2: 4a + c = 60

Step-by-step explanation:

3 0
2 years ago
The absolute value of 64
Keith_Richards [23]

Answer:

64

Step-by-step explanation:

the absolute value is how many numbers it is from zero and will always be positive

6 0
3 years ago
If UW =9x-9, what is UW in units
mash [69]

Answer:

if UW = 9x-9 then UW is 5 in units

8 0
2 years ago
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