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3 years ago

Please help now i need it quick

Mathematics

2 answers:

liubo4ka [24]3 years ago

8 0

1. Out of a study of 64 dentists, 56 recommended.
2. 3 is the answer. Hope you do well on your test :)))

devlian [24]3 years ago

6 0

I believe c is the answer on the first one

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What is 338.7 rounded to 2 significant figures?

Artemon [7]

Hbrtejhrethwthtrwhtwht

6 0

3 years ago

Suppose a city with population 100,000 has been growing at a rate of 8% per year. If this rate continues, find the population

Natalija [7]

Answer:

$370,002\ people$

Step-by-step explanation:

In this problem we have a exponential equation of the form

$y=a(b^x)$

where

y is the population of the city

x is the number of years

a is the initial value or y-intercept

b is the base

r is the rate of growth

b=(1+r)

we have

$a=100,000\ people\\r=8\%=8/100=0.08\\b=1+0.08=1.08$

substitute

$y=100,000(1.08^x)$

For x=17 years

substitute the value of x in the exponential equation and solve for y

$y=100,000(1.08^17)$

$y=370,002\ people$

7 0

4 years ago

Someone help!! Thanks

Andru [333]

Answer:

I believe it is 21

Step-by-step explanation:

4 0

3 years ago

Find the equation of the perpendicular bisector of line MN

marissa [1.9K]

Answer:

Y=(-1/2)x+9/2

Step-by-step explanation:

For straight lines y=mx+c

m=gradient

Find the gradient first-m=(y2-y1) /(x2-x1)

Take the points M and N and substitute in the equation

m=(5-2)/(-1-5)

m=-1/2

Gradient of line MN×gradient of perp line =-1

There fore gradient of perp line =2

3 0

2 years ago

A yo-yo factory has fixed operating costs of $5000 per day plus costs of $2 per yo-yo produced. If a yo-yo sells for $5.50, what

Jlenok [28]

Answer:

1429

Step-by-step explanation:

Break even is expressed as:

5000+2x = 5.5x

5000=5.5x-2x

5000=3.5x

$\frac{5000}{3.5} = \frac{3.5x}{3.5}$

1428.57=x

Since you cannot sell a fractional yo-yo, round up to 1429

3 0

3 years ago