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OLEGan [10]
3 years ago
13

Changing Scales in Scale Drawings- (question in picture attachment)

Mathematics
1 answer:
Harman [31]3 years ago
6 0

i dont get it

Step-by-step explanation:

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A car traveled at a constant speed. The graph shows how far the car traveled, in miles, during a given amount of time, in hours.
snow_tiger [21]

Answer:

Step-by-step explanation:

A car traveled at a constant speed as shown in the graph.

Distance traveled is on the y-axis and duration of travel on the x-axis.

Point A(3.5, 210) shows,

Distance traveled = 210 miles

Time to travel = 3.5 hours

So the point (3.5, 210) shows the distance traveled by the car in 3.5 hours is 210 miles.

Slope of the line = speed of the car = \frac{\text{Distance traveled}}{\text{Time}}

                           = \frac{210}{3.5}

                           = 60 mph

Now we will find the speed of the car at another point B(1, 60).

If the speed of car is same as the point B as of point A, point B will lie on the graph.

Speed of the car at B(1, 60) = \frac{\text{Distance traveled}}{\text{Time}}

                                             = \frac{60}{1}

                                             = 60 mph

Hence, we can say that point B(1, 60) lies on the graph.

8 0
3 years ago
The employees of a firm that manufactures insulation are being tested for indications of asbestos in their lungs. The firm is re
diamong [38]

Answer:

0.070

Step-by-step explanation:

Y = number on trial

Y has a negative binomial distribution

r = 3

P = 30% = 0.3 probability of positive indication.

P(Y = 11) probability of 11 employees that must be tested to get 3 positives

Y-1Cr-1*p^r*q^(y-r)

Y-1 = 11-1 = 10

r-1 = 3 -1 = 2

10C2 x 0.3³x0.7⁸

45x0.027x0.05764801

= 0.070

This is the probability that 11 employees must be tested to get 3 positives.

8 0
3 years ago
a trapeziod has an area of 150 spuare meters. If the bases are 14 meters and 16 meters, what is the height of the trapezoid​
ladessa [460]

the height is 10m ;)))))))

3 0
4 years ago
What is the height of a triangle with a base of 6 yards and an area of 72 square yards?
ANEK [815]

Answer:

24

Step-by-step explanation:

the height of a triangle is A=(b·h)÷2

We know the area and base so replace: 72=(6×h)÷2

Solve:

72=(6×h)÷2

·2         ·2

144=6h

÷6   ÷6

h=24

24 yards

4 0
3 years ago
Select the correct statement about the function represented by the table. x y 1 34 2 41 3 48 4 55 5 62 A. It is a linear functio
insens350 [35]

Answer:

sorry

Step-by-step explanation:

5 0
2 years ago
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