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harina [27]
3 years ago
13

URGENT an athlete can lift a maximum of 80 pounds. if she uses 3 pound weights when she exercises, what percent is she lifting

Mathematics
1 answer:
Anna11 [10]3 years ago
4 0

Answer:

should be 3.75 percent

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Write the equation in vertext form<br><br> Vertex: (3,6) ; y-intercept: 2
olganol [36]
Y= a(x-3)^2+6
2= a(0-3)^2+6
2=a(-3)^2+6
2=a(9)+6
2-6=9a
-4=9a
-4/9=a

Therefore the equation in vertex form is
y = -4/9 (x-3)^2+6
8 0
3 years ago
What equation represents the line that passes through the points (-3 7 and (3 3?
dexar [7]


<span>Hello : let  A(-3,7)    B(3,3)
the slope is :   (YB - YA)/(XB -XA)
(3-7)/(3+3)  = -2/3
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y = (-2/3)x +b

 

the line through point B (3,3) :  3 = (-2/3)(3)+b<span>
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3 0
3 years ago
Find the surface area of the cylinder. Type an exact answer in terms of pi.
Elodia [21]

Answer:

=150.79644...cm²

~150cm²

Step-by-step explanation:

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5 0
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It was recently estimated that females outnumber males by about three or two. If there are 1770 people in a county, how many of
max2010maxim [7]

GIVEN

1) Females outnumber males by 3 to 2.

2) There are 1770 people in the city.

SOLUTION

Let the number of males be x and the number of females y. Therefore, the total number of people can be written to be:

x+y=1770\text{   -----------(1)}

If there are 3 females for every 2 males, we have that:

\begin{gathered} \frac{y}{3}=\frac{x}{2} \\ \therefore \\ x=\frac{2y}{3}\text{   ----------(2)} \end{gathered}

We can substitute equation (2) into equation (1) and solve for y:

\begin{gathered} \frac{2}{3}y+y=1770 \\ \frac{2y+3y}{3}=1770 \\ 5y=1770\times3 \\ 5y=5310 \end{gathered}

Dividing both sides by 5, we have

y=1062

There are 1062 females in the county.

3 0
1 year ago
What is the third quartile of the data set? 23, 35, 55, 61, 64, 67, 68, 71, 75, 94, 99
lara [203]

Answer:

75

Step-by-step explanation:

Q1=55 Q2=67 Q3=75

4 0
3 years ago
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