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3 years ago

I need help with this look at picture Complementary angles

Mathematics

2 answers:

djyliett [7]3 years ago

7 0

Answer:

53°

Step-by-step explanation:

Complementary angle = 90°

So, 12° + (x+25°) = 90°

Subtract 12 from both sides

x+25°=78°

Subtract 25 from both sides

x=53°

Tom [10]3 years ago

6 0

Answer:

x=43

Step-by-step explanation:

complementary angles will add up to equal 90 so we set up an equation to solve x

12+x+25=90

step 1 combine like terms

12+25=37 so now its

37+x=90

step 2 we subtract each side by 37

90-37=43

x=43

hope this helps and have a great day :)

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3 years ago

Simplify: 18q2−45q+25/9q2−25.

Svet_ta [14]

Answer:

$\frac{(6q-5)}{(3q+5)}$

Step-by-step explanation:

Given: $\frac{18q^{2}-45q+25 }{9q^{2}-25 }$

Factorizing the numerator and the denominator, we have:

18 $q^{2}$ - 45q + 25 = 18 $q^{2}$ - 30q - 15q + 25

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and

9 $q^{2}$ - 25 = (3q - 5)(3q + 5)

So that,

$\frac{18q^{2}-45q+25 }{9q^{2}-25 }$ = $\frac{(3q-5)(6q-5)}{(3q-5)(3q+5)}$

= $\frac{(6q-5)}{(3q+5)}$

Therefore,

$\frac{18q^{2}-45q+25 }{9q^{2}-25 }$ = $\frac{(6q-5)}{(3q+5)}$

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3 years ago