Ask question

Ask question

All categories

3 years ago

13

If a car travels 30 mi. north for one-half hour, 50. mi. east for one hour, and 30 mi. south for 30 min., what is the total dist

ance the car traveled?

1 answer:

aliya0001 [1]3 years ago

5 0

The total distance is D=d1+d2+d3
d1=30x0.5
d2=50x1
d3=30x0.5
D=d1+d2+d3=80miles

You might be interested in

-3x+6y=15 and -3x-2y=-1*

wariber [46]

How do you want this to be solved ?

8 0

3 years ago

Read 2 more answers

PLEASE I NEED THE SLOPE OF THE RED LINE AND THE BLUE LIKE BY NOW!!!!

netineya [11]

Red line slope=3/4
Blue line slope=2/3

3 0

3 years ago

Read 2 more answers

How many more buttons will Teresa need to make 12 puppets ? Explain

Dominik [7]

Please go into more detail about the question then u will be able to help you

3 0

3 years ago

DEF is a dilation image of ABC. What is the scale factor?

horsena [70]

Answer:

Option (2)

Step-by-step explanation:

ΔDEF is a dilation image of ΔABC.

Rule for the dilation,

Scale factor = $\frac{\text{Length of one side of the image triangle}}{\text{Length of one side of the original triangle}}$

= $\frac{DE}{AB}$

= $\frac{4}{8}$

= $\frac{1}{2}$

Therefore, scale factor by which ΔABC is dilated is $\frac{1}{2}$ .

Option (2) will be the correct option.

7 0

2 years ago

A university knows from historical data that 25% of students in an introductory statistics class withdraw before completing the

Vikki [24]

Answer:

13.4%

Step-by-step explanation:

Use binomial probability:

P = nCr p^r q^(n-r)

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1-p).

Here, n = 16, r = 2, p = 0.25, and q = 0.75.

P = ₁₆C₂ (0.25)² (0.75)¹⁶⁻²

P = 120 (0.25)² (0.75)¹⁴

P = 0.134

There is a 13.4% probability that exactly 2 students will withdraw.

8 0

3 years ago