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2 years ago

15

Max travels to see his brother's family by car. he drives 216 miles in 4 hours. What is his rate in miles per hour? use a double

number line to show your work.

1 answer:

pochemuha2 years ago

6 0

Answer:

54 miles per hour

Step-by-step explanation

If you divide the number of miles (216) by the hours (4) you get 54.

Hope this help :)

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What is the equation of the line passing through (-2,-7) (4,23)

malfutka [58]

Answer:

The equation of line Passing through (2,3) and (4,7)

The slope of line is

4−2

7−3

=

2

4

=2

The equation of line is y−7=2(x−4)

y−7=2x−8

2x−y−1=0

Step-by-step explanation:

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2 years ago

Solve for an angle in right triangles

Aneli [31]

Answer:

90

Step-by-step explanation:

if all the interior angle in triangle sums up it will be 180

so 180 divide by by 3(because its a triangle) is 90

hope this helps

have a nice day <3

8 0

2 years ago

A map has a scale of 1 cm : 9 km. If two cities are 2 centimeters apart on the map, what is the actual distance between the citi

Angelina_Jolie [31]

Answer:

18 kilometers

Step-by-step explanation:

If each 1 cm represents 9 kilometers.

How many would 2 cm represent?

$x = \frac{9 \times 2}{1} = 9 \times 2 = 18$

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2 years ago

write two different inequalities in which one of the solutions is the same as the solution to x - 23 = 192

Slav-nsk [51]

Answer:

I don't no the answer sorry

3 0

2 years ago

The weights of certain machine components are normally distributed with a mean of 8.04 g and a standard deviation of 0.08 g. Fin

NISA [10]

Answer:

The bottom 3 is separated by weight 7.8896 g and the top 3 is separated by weight 8.1904 g.

Step-by-step explanation:

We are given that

Mean, $\mu=8.04 g$

Standard deviation, $\sigma=0.08g$

We have to find the two weights that separate the top 3% and the bottom 3%.

Let x be the weight of machine components

$P(Xx_2)=0.03$

$P(X$

=0.03

From z- table we get

$P(Z1.88)=0.03$

Therefore, we get

$\frac{x_1-8.04}{0.08}=-1.88$

$x_1-8.04=-1.88\times 0.08$

$x_1=-1.88\times 0.08+8.04$

$x_1=7.8896$

$\frac{x_2-8.04}{0.08}=1.88$

$x_2=1.88\times 0.08+8.04$

$x_2=8.1904$

Hence, the bottom 3 is separated by weight 7.8896 g and the top 3 is separated by weight 8.1904 g.

5 0

2 years ago