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murzikaleks [220]
3 years ago
14

students can buy up to 10 books at the book fair the cost of the books as shown in the graph what is the domain of the graph

Mathematics
2 answers:
Rzqust [24]3 years ago
7 0
The correct answer is B
german3 years ago
5 0
The answer is 8 okay
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Item 7 you and a friend are running on treadmills. you run 0.5 mile every 3 minutes, and your friend runs 2 miles every 14 minut
sweet [91]
<span>You run 0.5 miles every 3 minutes => 1 mile every 6 minutes. Your friend runs 2 miles every 14 minutes => 1 mile every 7 minutes. You run a whole number of miles every number of minutes that is a multiple of 6. Your freind runs a whole number of miles every number of minutes that is a multiple of 7 Then the least possible number of miles that you both run to end at the same time is the least common factor of 7 and 6 minutes. This is 7 * 6 = 42 minutes. You will have run 42 min / (6 miles/min) = 7 miles, and your friend will have run 42 min / (7 miles/min) = 6 miles</span>
5 0
3 years ago
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Parallel lines "a" and "b" are cut by a transversal "c." What is "R" in the diagram below?
belka [17]

Answer:

I'm guessing it's 70°

Step-by-step explanation:

in the image above you can see I circled the 70°

the same angle is below it to the left. which means it's 70°

4 0
2 years ago
Read 2 more answers
From 12,000 graphing calculators produced by a​ manufacturer, an inspector selects a random sample of 550 calculators and finds
maria [59]

Answer:

131

Step-by-step explanation:

Using proportion,

If Out of 550 calculators = 6 are defective,

Then out of 12000 calculators = ? are defective

\frac{12000 calculators}{550calculators} * 6

= 21.8 * 6

= 130.8 ≈ 131

∴ Approximately 131 calculators are defective

3 0
3 years ago
Write in vertex form (by completing the square)y=4x2+40x+96
Anestetic [448]
y=4x^2+40x+96\\ \\ The \ vertex \ form \ of \ the \ function \ is: \\ \\y = a(x - h)^2 + k \\ \\vertex =(h, k) \ is \ given \ by: \\ \\h = \frac{-b}{2a} , \ \ \ k = c -\frac{b^2}{4a} \\ \\a=4 , \ \ b=40 , \ \ c=96

h = \frac{-40}{2 \cdot 4}=\frac{-40}{8}=-5 \\ \\ k = 96 -\frac{40^2}{4 \cdot 4} =96-\frac{1600}{16} =96-100=-4 \\ \\ y = 4(x - (-5) )^2 + (-5)=4(x +5 )^2 -5


6 0
3 years ago
In circle Q with
jonny [76]

Answer:

The minor arc PR is 42 degrees

Step-by-step explanation:

The picture of the question in the attached figure

we know that

The inscribed angle is half that of the arc comprising

so

m\angle PSR=\frac{1}{2}(arc\ PR)

we have

m\angle PSR=21^o

substitute

21^o=\frac{1}{2}(arc\ PR)

arc\ PR=21(2)=42^o

Remember that the minor arc in a circle is less than 180 degrees

therefore

The minor arc PR is 42 degrees

4 0
3 years ago
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