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In-s [12.5K]
3 years ago
5

Evaluate (-b)2 for a = 5, b = -4, and c = 2. -4 16 -16

Mathematics
1 answer:
m_a_m_a [10]3 years ago
6 0
(-b)^2 = (-(-4))^2 = 4^2 = 16
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Annie brought nickels, dimes and quarters to the store. If she has at least one of every coin, they add up to $1.00, and Annie h
mojhsa [17]
She has 1 quarter, 1 dime and 13 nickels. So the probability that one coin at random is a nickel is 13/15.

My work:

1$= 100

1 quarter=25

1 dime=10

1+1+13= 15

25×1= 25

10×1= 10

5×13= 65

65+25+10= 100
5 0
3 years ago
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If you had a slope of 3 and a y-intercept of 2, the equation should be
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Answer:

y=3x+2

Step-by-step explanation:

There is enough information to make a equation in slope-intercept form.

y=mx+b

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Plug in the appropriate values:

y=mx+b\rightarrow\boxed{y=3x+2}

Hope this helps.

7 0
3 years ago
If a triangle has a height of 7 centimeters and a base of 4 centimeters,what is the area
sattari [20]

Answer:

14cm^2

Step-by-step explanation:

Area of a triangle is (base×height)/2

(4×7)/2

28/2

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True or false<br><br> A rhombus is an isosceles trapezoid
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false

Step-by-step explanation:

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3 years ago
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7. What is the slope of the line that passes through the pair of points (3, 8) and (9, 5) ? (1 point)
agasfer [191]
7. D
8. D
9. D
10.C

for 7 & 8 you use the equation
\frac{y2 - y1}{x2 - x1}
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so you plug the numbers in
y2= 5
y1=8

x2=9
x1=3
you subtract them get a fraction and that is your slope


9 & 10
use the equation
y - y1 = m(x - x1)
plug you numbers in for y1 and x2 m is your slope plug it in and that is your equation


5 0
3 years ago
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