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topjm [15]
3 years ago
13

Please help with 3! i don’t know how to graph it or work it out

Mathematics
1 answer:
saveliy_v [14]3 years ago
8 0
It would be like this , this is how you would graph it

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On the first day after the new moon, 2% of the Moon's surface is illuminated. On the second day, 6% is illuminated. Based on thi
maxonik [38]

Answer:

50%: day 13

100%: day 26

Step-by-step explanation:

We are given two days and the amount of the moon that is illuminated. The two days are points on a straight line.

(1, 0.02), (2, 0.06)

y = mx + b

m = (0.06 - 0.02)/(2 - 1) = 0.04

y = 0.04x + b

0.02 = 0.04(1) + b

b = -0.02

y = 0.04x - 0.02

We want y = 50% = 0.5

0.04x - 0.02 = 0.5

0.04x = 0.52

x = 13

y = 100% = 1

0.04x - 0.02 = 1

0.04x = 1.02

x = 25.5

7 0
3 years ago
Read 2 more answers
What is the side length of s on the square A=m²​
quester [9]
The side length of s on the same square would be P = 4a
4 0
3 years ago
A pile of earth removed from an excavation is a cone measuring 12 ft high and 30 ft across its base. How many trips will it take
sattari [20]

Answer:

12 trips

Step-by-step explanation:

Given;

Dimension of cone shapef pile of earth;

height h = 12 ft = 4 yards

diameter d = 30 ft = 10 yards

radius r = d/2 = 10/2 = 5 yards

The volume of a cone V;

V = (1/3)πr^2 h

Substituting the given values;

V = (1/3) ×π × 5^2 × 4 cubic yards

V = 104.72 cubic yards

Given that a dump truck have a capacity of 9 cubic yards.

Vc = 9 cubic yards

Number of trips it will take is;

N = Volume of earth pile/truck capacity

N = V/Vc

Substituting the values;

N = 104.72/9

N = 11.64

N ≈ 12 trips

Therefore, the truck will make 12 trips

8 0
3 years ago
Please help my teacher wont help
yawa3891 [41]

Answer: Choice B

They traveled 250 miles in 4 hours. Their speed was 62.5 mph.

=============================================================

Explanation:

Start at point X. Draw a horizontal line straight across until you reach the y axis. You should arrive at y = 250. This tells us that they traveled 250 miles.

Go back to point X. Draw a vertical line until you reach the x axis. You should reach x = 4. This indicates 4 hours.

Pairing up the two values together means they traveled 250 miles in 4 hours. Divide the distance over time to get the speed

speed = distance/time = 250/4 = 62.5 miles per hour

--------

Side note: unfortunately your teacher chose the label uppercase X for the point, which may be a bit confusing since it could clash with the lowercase x along the horizontal axis.

Another note: the speed represents the slope of the line

8 0
3 years ago
6. The scatter plot shows the median household income, x, in thousands of dollars, and
ollegr [7]

Answer:

m = 4.08

Step-by-step explanation:

The line that fits good for the given data is given by :

y = 4.08x + 63.13

We need to find the slope of the given line.

The general equation of the line is given by :

y = mx +c

Where

m is slope of the line

c is y-intercept

So, the slope of the given line is 4.08.

3 0
3 years ago
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