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umka21 [38]
3 years ago
8

Help fast (question is picture below)

Mathematics
1 answer:
garik1379 [7]3 years ago
4 0

Answer:

√35 · (3 + √7)

= 3√35 + √(35 · 7)

= 3√35 + √245

= 3√35 + √(49 · 5)

= 3√35 + 7√5

The answer is B

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Persons taking a​ 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a
mihalych1998 [28]

Answer:

y = 4.125x + 496.25

Step-by-step explanation:

Set the data up as points. Then deal with the points.

Givens

(30,620)

(70,785)

y2 = 785

y1 = 620

x2 = 70

x1 = 30

Formula

Slope = (y2 - y1) / (x2 - x1)

Solution

Slope = (785 - 620)/(70 - 30)

Slope = 165 / 40

Slope = 4.125

===================

Now you need the y intercept. Either one of the two given points will give you that.

y = 620

x = 30

m = 4.125

y = mx + b

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3 years ago
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Step-by-step explanation:

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(3x squared)to the power of -2 
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