1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Darina [25.2K]
3 years ago
15

mr thompson makes two rectangular dog runs. the first dog run is 2 meters wide and 4 meter long. the second dog run has the same

length as the first dog run . the area of the second dog run is half of the first dog run . what is the width of the second dog run?
Mathematics
1 answer:
Rasek [7]3 years ago
8 0
The area of the first dog run is 2x4= 8

The area of the second dog run is
?x4= 4

The width of the second dog run = 1
You might be interested in
Lengths of full-term babies in the US are Normally distributed with a mean length of 20.5 inches and a standard deviation of 0.9
mash [69]

Answer:

66.48% of full-term babies are between 19 and 21 inches long at birth

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean length of 20.5 inches and a standard deviation of 0.90 inches.

This means that \mu = 20.5, \sigma = 0.9

What percentage of full-term babies are between 19 and 21 inches long at birth?

The proportion is the p-value of Z when X = 21 subtracted by the p-value of Z when X = 19. Then

X = 21

Z = \frac{X - \mu}{\sigma}

Z = \frac{21 - 20.5}{0.9}

Z = 0.56

Z = 0.56 has a p-value of 0.7123

X = 19

Z = \frac{X - \mu}{\sigma}

Z = \frac{19 - 20.5}{0.9}

Z = -1.67

Z = -1.67 has a p-value of 0.0475

0.7123 - 0.0475 = 0.6648

0.6648*100% = 66.48%

66.48% of full-term babies are between 19 and 21 inches long at birth

5 0
2 years ago
What is mila’s average swimming speed?
skad [1K]

Answer:

she swam 1500 meters in 1/4 of the time and he swam 750 in half of his time. Hope this helps

5 0
3 years ago
Light travels about 3 x 10^5 metres per second. Find the time it takes to travel 1 metre. Give your answer in standard form.
Anna71 [15]

Answer:

t=3.3*10^{-6}

Step-by-step explanation:

t=\frac{S}{v}

As

S=1m

v=3*10^{5}ms^-1

t=\frac{1}{3*10^{5} }

t=3.3*10^{-6}

3 0
2 years ago
Read 2 more answers
What is 3.89 × 10–2 written in standard form?
tester [92]
C. 0.0389 I hope this helps
7 0
3 years ago
The horizontal reach of a fire hose is the distance the hose can spray water horizontally. Based on the function, about what is
IceJOKER [234]

Answer:

Step-by-step explanation:

the right answer is 96lb/in.2

7 0
2 years ago
Read 2 more answers
Other questions:
  • Find the coordinates of the vertices of a triangle after a 90 degree rotation counterclockwise about the origin.
    5·1 answer
  • X and y table for y=x+2
    12·2 answers
  • If a family has three pets, what is the theoretical probability that they have three dogs or three cats?
    9·2 answers
  • Zoey made 6 3/4 cups of fruit salad for a picnic. At the picnic, they ate 1/3 of the fruit salad. How much of the fruit salad di
    9·1 answer
  • there are a total of 18 frocks. if the ratio of purple frocks to white frocks is 2 to 4 , how many of them are white?
    8·1 answer
  • The nearest integer of the square root of -105
    9·1 answer
  • PLS HELP NO FAST LINKS!!!
    5·1 answer
  • Tysm3333333333333333333333
    6·1 answer
  • What is x in this question ax=12
    10·2 answers
  • Maria’s suitcase has a mass of 14 kilograms. Her sister’s suitcase
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!