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3 years ago

Which pair of triangles is congruent?

Mathematics

2 answers:

artcher [175]3 years ago

7 0

Answer:

Step-by-step explanation:

Zarrin [17]3 years ago

4 0

A congruent shape is a shape that has the exact same shape and size as another. therefore, I believe that the first, second, and third pairs are congruent. If it could only be one pair, I think the last one.

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In the figure below, angle y and angle x form vertical angles. Angle y forms a straight line with the 60° angle and the 70° angl

Lynna [10]

The answer is 50 I believe

4 0

3 years ago

Solve the equation by completing the square and then solving for x. 1. x^2-6x=12 2. 2x^2-24x=-20

Paraphin [41]

Answer: (x - 3)² = 21

Step-by-step explanation:

x² - 6x + ____ = 12 + ____

↓ ↑ ↑

$\frac{-6}{2} = (-3)^{2}$

x² - 6x + 9 = 12 + 9

(x - 3)² = 21

*******************************************************

Answer: (x - 6)² = 26

Step-by-step explanation:

2x² - 24x = -20

÷2 ÷2 ÷2

x² - 12x = -10

x² - 12x + ____ = -10 + ____

↓ ↑ ↑

$\frac{-12}{2} = (-6)^{2}$

x² - 12x + 36 = -10 + 36

(x - 6)² = 26

8 0

3 years ago

Find x in this 45°-45°-90° triangle. x = 4.5√2 9 18

postnew [5]

Answer:

x = 9

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin45° = $\frac{1}{\sqrt{2} }$ , then

sin45° = $\frac{opposite}{hypotenuse}$ = $\frac{x}{9\sqrt{2} }$ = $\frac{1}{\sqrt{2} }$ ( cross- multiply )

x × $\sqrt{2}$ = 9 $\sqrt{2}$ ( divide both sides by $\sqrt{2}$ )

x = 9

5 0

2 years ago

One positive number is 9 more than twice another. If their product is 731 find the numbers

Anastaziya [24]

The answer is 361.

This is because you take 731 and subtract 9 and you get 722. Then you divide 722 by two and you get 361.

Hope this helped!!

3 0

3 years ago

Answers for this paper plz

Anna [14]

Answer:

adjacent

brainliest

Step-by-step explanation:

6 0

2 years ago