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beks73 [17]
3 years ago
15

Hello please help i’ll give brainliest

Mathematics
1 answer:
Margarita [4]3 years ago
5 0

Answer:

A

Explanation:

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Triangles A and B are congruent.<br>Find the perimeter of triangle A. Give your answer to 1 dp.​
CaHeK987 [17]

Pythagorean Theorem: a² + b² = c²

If Triangle A ≅ Triangle B, then hypotenuse length of A would be 9 cm and the another side of triangle A is stay 6 cm.

{6}^{2}  +  {x}^{2}  =  {9}^{2}

36 +  {x}^{2}  = 81

{x}^{2}  = 81 - 36 = 45

45 = 3 \sqrt{5}  = x

Perimeter of triangle a :

9 + 6 + 3 \sqrt{5}  = 15 + 3 \sqrt{5}

Hope this helps ^-^

8 0
3 years ago
NEED HELP WITH THIS ASAP!!
Eddi Din [679]
The answer is A because , he spent 60$ for the party and then he wanted ppl over. 6$ per person, add six 10 times on top of the 60 and you get 126$ so, it’s going to be less than 11, there for, that is your answer.
8 0
3 years ago
Consider the following system of equations:
Snowcat [4.5K]

The correct answer is: "The y's because the coefficients are the same."

Further explanation:

we always try to eliminate the variable from the system of equations which involves lesser calculations and complexity.

Assuming that Given equations are:

Equation 1: 82x + 2y = 30

Equation 2: 70x + 2y = 24

we can see that the coefficients of x are very large and different. While the coefficients of y are same. We can only subtract the equations to eliminate y.

Hence,

The correct answer is: "The y's because the coefficients are the same."

Keywords: Linear equations, variables

Learn more about linear equations at:

  • brainly.com/question/1859222
  • brainly.com/question/1993757

#LearnwithBrainly

4 0
4 years ago
Prove that: (1+cot^2x)tan^2x = sec^2x
timofeeve [1]

Answer:

Step-by-step explanation:

1+cot^2x = csc^2x= \frac{1}{sin^2x}

it becomes

\frac{1}{sin^2x}*\frac{sin^2x}{cos^2x}=\frac{1}{cos^2x}=sec^2x

Done

8 0
3 years ago
The table represents the speed of frog A at a frog jumping contest. Frog B travels 2 feet each second. If the course is 20 feet
kogti [31]

Answer:

I think Frog b wins.

Step-by-step explanation:

3 0
3 years ago
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