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Rudik [331]
2 years ago
10

Practice In the figure, a || 6. What is the value of x?

Mathematics
1 answer:
kenny6666 [7]2 years ago
8 0

Answer:

x = 40

Step-by-step explanation:

3x + 9 = 129 Alternate Exterior Angles Theorem

-9 -9

3x = 120 divide by 3

x = 40

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By what number should ( -5)(-1) be multiplied so that the product may be equal to (10)(-1)​
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Answer: -2

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7 0
2 years ago
three numbers are in an arithmetic progression. Their sum is 3 and the sum of their squares is 11. what are the three numbers
Vlad [161]

The three numbers are 12, 18 and 24

Arithmetic progression

Let the 3 number in arithmetic progression be:

a-d, d, a+d ...

If their sum is 3, then;

a-d+d+a+d = 3

2a + d = 3 ........... 1

If the sum of their squares is 11, then;

(a-d)² + d² + (a+d)² = 11

a²-2ad+d²+d²+a²+2ad+d²  11

2a²+3d² = 11 ....... 2

Solving the equations simultaneously, d = 6 and a = 12

First-term = 12

second term = 18

Thirs term = 24

Hence the three numbers are 12, 18 and 24

Hope this helps you!!!!!! :D

5 0
2 years ago
Read 2 more answers
Probability question!!
Alisiya [41]
Convert both perecentages to decimal form by dividing each of them by 100 to get 0.60 and 0.65. Next, multiply by 0.60 and 0.65 to get 0.39. Multiply the product by 100 to get the percentage form, 39%. So, the answer is 39%.
3 0
3 years ago
Change to log form. <br> 7e^(-x)=0.01
sladkih [1.3K]
(0.00142857)=-x is your answer
3 0
3 years ago
Will mark brainliest!!
tatiyna
The answer: 839
Correct
6 0
2 years ago
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