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Licemer1 [7]
3 years ago
9

Estimate the square root of 75. a. 8.7 b. 4.2 c. 7.4 d. 9.5

Mathematics
2 answers:
SVEN [57.7K]3 years ago
8 0

Answer: A.8.7

Step-by-step explanation:

Over [174]3 years ago
8 0
A.8.7 is the answer to ur question
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Given: A =( 2 , 4 , 6 , 18 , ) B = ( 2 , 4 , 6 , 8 , ) C = ( 4 , 10 , 12 , ) What is A U B C?
Anni [7]
2,4,6,8,10,12,18 is the answer
4 0
3 years ago
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Write in standard form a)0.00000678 b)3170000
otez555 [7]

Standard Form:

a) 0.00000678

b) 3170000

Scientific Notation:

a) 6 × 10^{4}

b) 6.78 × 10^{-6}

Is this what you meant?

8 0
3 years ago
18. What is the y-intercept of the line that passes<br> through the points (1, 1) and (5, 13)?
TEA [102]

Answer:

-2

(The coordinate point is (0,-2))

Step-by-step explanation:

First, make an equation of the line.

Start off with finding the slope:

Slope = (13-1)/(5-1) = 12/4 = 3

Then solve for the y-intercept though substitution and simplification:

y=mx+b --> 1=3(1)+b --> 1=3+b --> b= -2

So the answer is -2.

4 0
3 years ago
4(x−2+y)<br> It's for khan academy
inessss [21]
The answer is 4x-8+4y i think?
4 0
2 years ago
17. Solve the following:<br> x – 3y = 5<br> 5x – 2y = -1
Phantasy [73]

Answer:

(- 1, - 2 )

Step-by-step explanation:

Given the 2 equations

x - 3y = 5 → (1)

5x - 2y = - 1 → (2)

Rearrange (1) expressing x in terms of y by adding 3y to both sides

x = 5 + 3y → (3)

Substitute x = 5 + 3y in (2)

5(5 + 3y) - 2y = - 1 ← distribute left side

25 + 15y - 2y = - 1

25 + 13y = - 1 ( subtract 25 from both sides )

13y = - 26 ( divide both sides by 13 )

y = - 2

Substitute y = - 2 in (3) for corresponding value of x

x = 5 + (3 × - 2) = 5 - 6 = - 1

Solution is (- 1, - 2 )

8 0
3 years ago
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