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BigorU [14]
2 years ago
12

What is (-12) + 7 Pre-Algebra

Mathematics
2 answers:
KonstantinChe [14]2 years ago
7 0
The answer to this question is -5
OLga [1]2 years ago
7 0

Answer:

-5

Step-by-step explanation:

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How to find the common denominator of two numbers?
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What is the equation for two thirds of a full turn
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5 0
2 years ago
For the given triangles select the lengths of the sides.
aivan3 [116]

Answer:

v=3

u=6

x=2√2

y=2√2

Step-by-step explanation:

First triangle :

tanΦ=v/3√3

tan30=v/3√3

(√3)/3=v/(3√3)

Cross multiply

(√3)/3 x 3√3=v

(√3 x 3√3)/3=v

(3√9)/3=v

(3x3)/3=v

9/3=v

3=v

v=3

Sin30=v/u

0.5=3/u

Cross multiply

0.5xu=3

0.5u=3

Divide both sides by 0.5

0.5u/0.5=3/0.5

u=6

Second triangle :

sin45=x/4

Cross multiply

x=4 x sin45

x=4 x (√2)/2

x=2√2

Cos45=y/4

Cross multiply

4 x Cos45=y

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(4√2)/2=y

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