3 years ago

Which rule explains why these triangles are congruente

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

5 0

Answer:

Step-by-step explanation:

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What is the value of x in the equation 4x+8y=40 , when y=0.8 ?

solniwko [45]

x = 8.4

Steps:

Multiply the numbers: 4x + 6.4 =40
Move the Constant to the right: 4x = 40 - 6.4
Subtract the numbers: 4x = 33.6
Divide 4 for both sides : 8.6

6 0

4 years ago

Which of the following ordered pairs is a solution of x + 1/2y = 1?

pogonyaev

(-2,6)

for example

x+1/2y=1

the ordered pair i will use is the first one. (-2, 6)

(-2) + 1/2(6)=1

from there it is a simple add/subtract and multiply/divide math problem.

1/2(6)=3

(-2) + 3 = 1

yes this ordered pair works for the solution meaning it is the answer.

3 0

4 years ago

Simplify each expression as much as possible, and rationalize denominators when applicable. √72=?

Misha Larkins [42]

Answer:

6√2

Step-by-step explanation:

Solving the given expression step by step:

72 = 2 × 2 × 2 × 3 × 3

Now for finding the square root we will make pair of two numbers of same values.

We have one pair of 2's and one pair of 3's and left one 2

Thus, √72 = 2 × 3 × √2 = 6√2

We rationalize denominator and change it into a simpler form as soon as possible.

3 0

3 years ago

Write a complete two-column proof for following information:

Fantom [35]

<span>Given:

AB = x + 16

BC = 4x + 11

AC= 77

We can safely assume that,

AB + BC = AC

x + 16 + 4x + 11 = 77

5x + 27 = 77

5x = 77 - 27

5x = 50

x = </span> $\frac{50}{5}$

x = 10

Hence,

AB = x + 16 = 10 + 16 = 26

Hence, proved.

8 0

4 years ago

Read 2 more answers

(x + 6)(x + 2) = 60?

Salsk061 [2.6K]

Answer:

x^3=6

Step-by-step explanation:

x(x+2)+6(x+2)=60

x^2+2x +6x +12=60

5 0

3 years ago