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vlada-n [284]
3 years ago
15

Which equation’s graph is a horizontal line? * x = 9 3x + 2y = 8 y = - 5

Mathematics
1 answer:
Natasha2012 [34]3 years ago
3 0

Answer:

Your answer would by y = -5

Step-by-step explanation:

This is horizontal because it does not have a slope. It is a horizontal straight line at the -5 point on the y-axis

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Find the length of the segment indicated. Round your answer to the nearest 10th of necessary.
belka [17]

Answer:

Step-by-step explanation:

Just using pythagorean theorem,

13.2²+16.9²=c²

174.24+285.61=c²

c²=√459.85

c= 21.4441134114

c = 21.4 (nearest tenth)

7 0
3 years ago
In your lab, a substance's temperature has been observed to follow the function T()- (x- 2)3 +8. The turning point of the graph
Vlad1618 [11]

We have the function:

T(x)=(x-2)^3+8

A turning point happens when the function reaches a maximum or a minimum.

In that points the value of the first derivative of the function is equal to 0.

So we can find the turning points by finding the first derivative and equal to zero:

undefined

6 0
1 year ago
What’s the formula of 15 and 17 1/2?
zloy xaker [14]

Answer:

23.5

Step-by-step explanation:

and means plus so u add

15+(17×<u>1</u>

2

BODMAS. do the bracket 1st

17×½=

8.5

solve the equation

15+8.5=

23.5

6 0
4 years ago
A machine paints 340 toys in 45 minutes. Write a ratio that can be evaluated to find the unit rate per hour.
sergejj [24]
I think it would be 68:9
4 0
3 years ago
A culture of 10 bacteria is started, and the number of bacteria will double every hour. In about how many hours will there be 3,
777dan777 [17]

Answer: it will take 18.2 years

Step-by-step explanation:

We would apply the formula,

y = ab^t

Where

a represents the initial amount of bacteria.

t represents the doubling.

From the information given

a = 10

t = 1 hour

Since after 1 hour, the amount of bacteria multiplies by 2, then

y = 2 × 10 = 20

Therefore

20 = 10 × b^1

Dividing through by 10, it becomes

2 = b

The equation becomes

y = 10(2)^t

For 3,000,000 bacteria, then

3000000 = 10(2)^t

3000000/10 = (2)^t

300000 = (2)^t

Taking log of both sides, it becomes

Log 300000 = tlog2

5.477 = 0.301t

t = 5.477/0.301

t = 18.2 years

7 0
3 years ago
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