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
PilotLPTM [1.2K]
3 years ago
10

The length of a swimming pool is 22 ft. The width is 40 ft. If the volume of the pool is 2,500 ft³, which equation below could b

e used to find the depth of the pool?
Mathematics
2 answers:
AURORKA [14]3 years ago
5 0
The equation best used would be 2500=22*40*d
Sedaia [141]3 years ago
5 0
Lwh=v 
so...
(22ft)(40ft)h=2500ft^3 where h is the depth
You might be interested in
Please help me it’s due today at 4:20pm please help me please please help me
Sergio039 [100]

Answer:

x = 3, the error is that the -2x should be added.

Step-by-step explanation:

The -2x should be added to the left side.

3x - 7 = -2x + 8

3x + 2x = 8 + 7

5x = 15

x =3

Answer lest edited 3:11 PM Central, 11/24/2020

4 0
3 years ago
Read 2 more answers
A ball is thrown into the air with an upward velocity of 36 ft/s. Its height h in feet after t seconds is given by the function
nlexa [21]
H = - 16 t² + 36 t + 10
The maximum height of the ball is at the vertex of the parabola.
t = - b / 2 a
t = -36/-32
t = 1.12 s
The maximum height of the ball:
h max = - 16 * 1.12² + 32* 1.12 + 10 = - 16 * 1.2544 + 35.84 + 10 =
=  - 20.0704 + 45.84 = 25.7696 = 25.77 m
8 0
3 years ago
Read 2 more answers
What is the slope of the line passing through (2,9) and (2,-14)
Brilliant_brown [7]

Answer:

The slope is undefined

Step-by-step explanation:

When graphed, the two points form a vertical line, since we can't divide the slope by zero thw slope is considered as undefined

6 0
3 years ago
A recent article in The Wall Street Journal compared the cost of adopting children from China with that of Russia. For a sample
denpristay [2]

Answer:

We can conclude the mean cost is larger for adopting children from Russia.

Step-by-step explanation:

To answer this question we can perform an hypothesis testing on the differences of the means with the following null and alternative hypothesis:

H_0: \mu_1\leq\mu_2\\\\H_1: \mu_1>\mu_2

The significance level we assume is 0.05.

First we calculate the mean standard error:

MSE=\frac{SSE}{df}=\frac{n_1\sigma_1^2+n_2\sigma_2^2}{(n_1-1)+(n_2-1)} =\frac{16*835^2+18*1545^2}{16-1+18-1} =1,691,314

The harmonic mean of the sample sizes is:

n_h=\frac{2}{1/n_1+1/n_2}=\frac{2}{0.0625+0.0556}=\frac{2}{0.1181}=16.94

Then we can calculate the estimated standard deviation as:

\sigma=\sqrt{\frac{2MSE}{n_h} } =\sqrt{\frac{2*1691314}{16.94} } =447

The t-statistic can be calculated as:

t=\frac{\Delta M-\Delta \mu}{\sigma}=\frac{(11045-12840)-0}{447} =\frac{-1795}{447}= -4.015

The degrees of freedom are df=n_1+n_2-2=18+16-2=32.

We can look up the P-value in a table or applet. For t=-4.015 and df=32, the P-value is 0.00017.

The P-value is smaller than the significance level, so the effect is significant and the null hyphotesis (China cost is equal or less than in Russia) is rejected.

We can conclude the mean cost is larger for adopting children from Russia.

4 0
3 years ago
Please help
galina1969 [7]

Answer:-1.2 Degree Fahrenheit.

Step-by-step explanation:

Since,

The average daily changes,   total changes/number of days

Here,

The total changes = - 16.8° F ( - sign shows the decreasing )

And, the number of days = 14

Hence,

⇒ The average daily rate of change in the high temperature in degrees Fahrenheit is -1.2° F.

6 0
3 years ago
Read 2 more answers
Other questions:
  • The rational number 5 3/7 is equal to <br><br><br> is equal to
    12·1 answer
  • Solve:<br> a.) 2y - 1 = 12<br> b.) 4x + 1 = 19
    9·1 answer
  • Peter has 13 eggs. joe has 4 fewer eggs than peter. how many eggs does joe have
    10·2 answers
  • Help me please I need this for tomorrow <br> Questions:24,25,26 and 27 please<br> and Godbless you
    7·1 answer
  • Use the rational zero theorem to create a list of all possible rational zeros of the function f(x)=14x7-4x2+2
    15·1 answer
  • How many times does 88 go in to 11
    10·2 answers
  • given that y^2=3x+C is a general solution to the differential equation y’-(3x/y)=0, what is a particular solution determined by
    5·1 answer
  • How to find the slope of a line parependicualr to another lie]?
    6·1 answer
  • Find the 7th term in the<br> sequence<br> -1, -3, -9,...
    7·2 answers
  • Write the expression 5^2/3 without using exponents
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!