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Marta_Voda [28]
2 years ago
9

Please help me answer and actually answer

Mathematics
2 answers:
natta225 [31]2 years ago
8 0
The last one, D. It doesn’t say anything about how many volunteers there are
Fudgin [204]2 years ago
5 0

Answer:

the first one

Step-by-step explanation:

you can not see the exact amount of volunteers worked exactly 4hours

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If y is inversely proportional to the square root of x and y=−70 when x=49, find y if x=2401.
Dahasolnce [82]

The value of y when x= 2401 is -10

<h3>How to determine the value of x?</h3>

An inverse variation is represented as:

y = \frac{k}{\sqrt x}

Where k is the proportionality constant

When y = -70, x = 49

So, we have:

-70 = \frac{k}{\sqrt {49}}

Take the square root of 49

-70 = \frac{k}{7}

Multiply through by 7

k = -490

Substitute k = -490 in y = \frac{k}{\sqrt x}

y = -\frac{490}{\sqrt x}

When x =2401, we have

y = -\frac{490}{\sqrt {2401}}

Evaluate the square root

y = -\frac{490}{49}

Divide

y = -10

Hence, the value of y when x= 2401 is -10

Read more about variation at:

brainly.com/question/14254277

#SPJ1

4 0
2 years ago
What is the range of this exponential function y=9^×+2
matrenka [14]

Answer4/8 x 69

Step-by-step explanation:

You add Tekashi

5 0
3 years ago
A bike was on sale for $3600 Sam makes an offer equal to 3/4 of the price how much does Sam offer
liq [111]
We know the bike was on sale for $3600 and a offer of 3/4 of the price.To find how much was offered

3/4 multiply by 3600= 3 multiply by 3600/4 =3 multiply by 900=$2700
Sam Offered = $2700
3 0
3 years ago
Find the equation of the line through point (−5,5) and perpendicular to y=59x−4
VARVARA [1.3K]

Answer:

Step-by-step explanation:

5 0
1 year ago
The area of the triangle is 28.7 square centimeters. What is the base length of the triangle in centimeters?
Montano1993 [528]

In order to derive the base of a triangle from its area, you need its height as well.

In fact, if we solve the area formula for the base, we have

A=\dfrac{bh}{2} \iff 2A = bh \iff b=\dfrac{2a}{h}

So, the base length would be

b=\dfrac{2\cdot 28.7}{h} = \dfrac{57.4}{h}

where h is the height relative to the base you're interested in.

3 0
3 years ago
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