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2 years ago

Please help ONLY ONE QUESTION !!

Mathematics

1 answer:

xxTIMURxx [149]2 years ago

6 0

Answer:

slope = - 4, y- intercept = 9

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 4x + 9 is in slope- intercept form

with slope m = - 4 and y- intercept c = 9

A proportional relationship has the form

y = mx

y = - 4x + 9 is not in this form

Hence the relationship is not proportional

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Colleen recorded the type of trees in the woods near her house.She counted 20 trees and 50 maple trees.What is the experimental

natka813 [3]

Answer: The required probability is $\dfrac{8}{125}$

Step-by-step explanation:

Since we have given that

Number of spruce tree = 20

Number of maple tree = 50

Total trees = 70

We need to find the experimental probability that the next tree Colleen to get a spruce tree.

So, the probability would be :

$(\dfrac{20}{50})^3=(\dfrac{2}{5})^3=\dfrac{8}{125}$

Hence, the required probability is $\dfrac{8}{125}$

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2 years ago

Im so confused ples help ;-;

AleksandrR [38]

Answer:

Step-by-step explanation:

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2 years ago

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josh has a job mowing lawns. He charges$25 for each yard. He needs at least $400 for the new game system that he wants. write an

Murljashka [212]

25x $\geq$ 400

x $\geq$ 16

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3 years ago

Samantha sends her son, Barry, to a preschool center on certain days. The cost of preschool is $45 per day along with a fixed mo

Travka [436]

Answer: Option D

D. $880 = 45d + 70$ ; $18\ days$

Step-by-step explanation:

We know that the cost of preschool is $ 45 per day plus a monthly fee of $ 70.

We also know that a total of $ 880 was paid last month

To write an equation that represents this situation, let us call "d" the number of days that Barry attends school

So the cost was:

$45d + 70 = 880$

Now we solve the equation for the variable d

$45d= 880-70$

$d= \frac{810}{45}$

$d= 18\ days$

Therefore answer is the option D

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2 years ago

A circle has a radius of 4.2 cm.

patriot [66]

Step-by-step explanation:

r=4.2

cicumference of circle =2Πr=2×3.14×4.2=26.3

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2 years ago