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
Assoli18 [71]
3 years ago
6

A square pyramid has a base with sides 36 meters long and with a slant height of 6.5 meters

Mathematics
1 answer:
Anna35 [415]3 years ago
4 0

Answer:

A. (Image attached)

B. 1764 m^2

Step-by-step explanation:

You might be interested in
I need help please thank u sm
gavmur [86]
K= 8. If you look at the pattern each x value is multiplied by 8 to give you the y value. You could also solve it by:

40=k5
40/5=k
8=k

you could do this with any of the x or y values and still end up with 8.
8 0
3 years ago
Mrs. Smith has 12 times as many markers as colored pencils. The total number of markers and colored pencils is 78. How many mark
yanalaym [24]

The answer is 930, because 78 multiply 12 is 930.
3 0
3 years ago
Read 2 more answers
Which parent function is f(x) = x^2
Nadya [2.5K]

Answer:

C.

Step-by-step explanation:

the standard form of a QE is ax2+bx+c. This includes x squared, and when graphed, it forms the graph of a QE, a parabola.

Hope this helps!

4 0
3 years ago
Read 2 more answers
An article includes the accompanying data on compression strength (lb) for a sample of 12-oz aluminum cans filled with strawberr
Sliva [168]

Answer:

A) Option B is correct.

H₀: μ₁ = μ₂

Hₐ: μ₁ - μ₂ < 0

B) t = -2.502

p-value = 0.0112

C) Option A is correct.

Reject H₀. The data suggests that cola has a higher average compression strength than the strawberry drink.

D) Option A is correct.

The distributions of compression strengths are approximately normal.

Step-by-step explanation:

The complete Question is presented in the two attached images to this answer.

A) To perform this test we first define the null and alternative hypothesis.

The null hypothesis plays the devil's advocate and usually takes the form of the opposite of the theory to be tested. It usually contains the signs =, ≤ and ≥ depending on the directions of the test.

While, the alternative hypothesis usually confirms the the theory being tested by the experimental setup. It usually contains the signs ≠, < and > depending on the directions of the test.

For this question, we want to test if the extra carbonation of cola results in a higher average compression strength. That is, that cola has a higher average compression strength than the strawberry drink.

Hence, the null hypothesis would be that there isn't significant evidence to suggest that the extra carbonation of cola results in a higher average compression strength, that is, cola has a higher average compression strength than the strawberry drink.

The alternative hypothesis is that there is significant evidence to suggest that the extra carbonation of cola results in a higher average compression strength, that is, cola has a higher average compression strength than the strawberry drink.

Mathematically, if the average compression strength of strawberry drink is μ₁, the average compression strength of cola is μ₂ and the difference in compression strengths is μ = μ₁ - μ₂

The null hypothesis is represented as

H₀: μ = 0 or μ₁ = μ₂

The alternative hypothesis is represented as

Hₐ: μ < 0 or μ₁ - μ₂ < 0

B) So, to perform this test, we need to compute the test statistic

Test statistic for 2 sample mean data is given as

Test statistic = (μ₁ - μ₂))/σ

σ = √[(s₂²/n₂) + (s₁²/n₁)]

μ₁ = average compression strength of strawberry drink = 537

n₁ = sample size of the sample of strawberry drink in cans surveyed = 10

s₁ = standard deviation of the compression strength of strawberry drink in cans surveyed= 22

μ₂ = average compression strength of cola = 559

n₂ = sample size of the sample of cola in cans surveyed = 10

s₂ = standard deviation of the compression strength of strawberry drink in cans surveyed = 17

σ = [(17²/10) + (22²/10)] = 77.5903160379 = 8.792

We will use the t-distribution as no information on population standard deviation is provided

t = (537 - 559) ÷ 8.792

= -2.502 = -2.50

checking the tables for the p-value of this t-statistic

Degree of freedom = df = n₁ + n₂ - 2 = 10 + 10- 2 = 18

Significance level = 0.05

The hypothesis test uses a one-tailed condition because we're testing in only one direction (whether compression strength of cola in can is greater).

p-value (for t = -2.50, at 0.05 significance level, df = 18, with a one tailed condition) = 0.011154 = 0.0112 to 4 d.p.

C) The interpretation of p-values is that

When the (p-value > significance level), we fail to reject the null hypothesis and when the (p-value < significance level), we reject the null hypothesis and accept the alternative hypothesis.

So, for this question, significance level = 0.05

p-value = 0.0112

0.0112 < 0.05

Hence,

p-value < significance level

This means that we reject the null hypothesis accept the alternative hypothesis & say that the extra carbonation of cola results in a higher average compression strength, that is, cola has a higher average compression strength than the strawberry drink.

D) The necessary conditions required before a t-test is deemed valid include.

- The samples used must be a random sample of the population distribution with each variable in the sample independent of other one.

- The distribution of the population where the samples were extracted from must be normal or approximately normal to ensure some degree of normality for the samples.

Hence, the necessary assumption for this t-test among the options is that the distributions of compression strengths are approximately normal.

Hope this Helps!!!

7 0
3 years ago
At the beginning of the bake sale merry set aside two pies for herself Kate bought half of the remaining pies for a birthday par
nirvana33 [79]
So.. .at the beginning of the sale, there was a total of "x" pies

now, let's see what happened to those pies
\bf \begin{array}{lrlll}&#10;&pies\\\\&#10;&\textendash\textendash\textendash\textendash\textendash\textendash&\\&#10;&#10;Mary&x-2\\\\&#10;Kate&\cfrac{x-2}{2}\\\\&#10;\textit{pies sold}&10\\\\&#10;\textit{pies leftover}&14&#10;\end{array}

so, we had "x"
then Mary took 2, she left x - 2
Kate took half of that (x-2)/2
then 10 were sold, and 14 leftover

if we subtract all those figures, and solve for "x",
we should get what "x" was, so \bf (x-2)-\left( \cfrac{x-2}{2} \right)-10-14=0

notice, if we subtract what Mary took, and Kate, and the sold and leftover, from the original "x", we would end up with no pies :)

so.. just solve for "x"
6 0
3 years ago
Other questions:
  • Please Help!!!!!!!!!!!!!!!!!!!!
    9·2 answers
  • Factor<br>1) (5a–3b)^2–25a^2<br>2) (−2a^2+3b)^2–4a^4<br>PLS Helppp
    8·1 answer
  • Find the slope of the line passing through the points (2,7) and (-1, 4).
    14·2 answers
  • What is 5 4/9 take away 1 7/9
    11·1 answer
  • The figure on the left shos a line segment 2 inches
    13·1 answer
  • Find an equivalent fraction to 5/6 only.
    7·2 answers
  • Idk how to do this and I need it in an hour
    15·1 answer
  • Help pls- And now brainly is making me type more soo-​
    12·1 answer
  • Which is the value of this expression when a= -2 and b= -3?
    7·1 answer
  • A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!