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guapka [62]
3 years ago
7

Factor out the coefficient of the variable 9x-36=

Mathematics
1 answer:
levacccp [35]3 years ago
8 0

Answer:

i believe that it is 9(x-4)


Step-by-step explanation:


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A clown has 63 blue balloons and 45 red balloons. The clown arranges the balloons into groups that have the same ratio of blue b
zysi [14]
First 45 / 10
that is exactly 4.5 meaning there are 4.5 groups of 10 red balloons
63 / 4.5 is 14
There will be 14 blue balloons for every 10 balloons. 

Hope this helps :)
4 0
3 years ago
Write the equation of a line that contains (2,−2) and perpendicular to another line with slope −1.
Reika [66]

Answer:

y = x - 4

Step-by-step explanation:

Perpendicular slope = 1

y + 2 = 1 (x - 2)

y + 2 = x - 2

y = x - 4

3 0
3 years ago
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The table shows data for a car stopping on a wet road. Stopping distance formula <img src="https://tex.z-dn.net/?f=d%28v%29%3D%5
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0.35

Step-by-step explanation:

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3 years ago
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A random sample of 60 mathematics majors spent an average of $200.00 for textbooks for a term, with a standard deviation of $22.
tangare [24]

Answer:

20 +/- $6.74

= ( $13.26, $26.74)

The 90% confidence interval for the difference in average amounts spent on textbooks (math majors - English majors) is ( $13.26, $26.74)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x1-x2 +/- margin of error

x1-x2 +/- z(√(r1^2/n1 + r2^2/n2)

Given that;

Mean x1 = $200

x2 = $180

Standard deviation r1 = $22.50

r2 = $18.30

Number of samples n1 = 60

n2 = 40

Confidence interval = 90%

z(at 90% confidence) = 1.645

Substituting the values we have;

$200-$180 +/-1.645(√(22.5^2/60 +18.3^2/40)

$20 +/- 6.744449847374

$20 +/- $6.74

= ( $13.26, $26.74)

The 90% confidence interval for the difference in average amounts spent on textbooks (math majors - English majors) is ( $13.26, $26.74)

3 0
3 years ago
Do Now (12/21/2020): Evelyn sees a TV on sale for $500. She has a coupon for 15% off the TV. What will be the final cost of the
likoan [24]

Answer:

$425

Step-by-step explanation:

500 × 0.15 = 75

500 - 75 = 425

3 0
3 years ago
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