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
qaws [65]
3 years ago
14

Oh lord help q-q I have like no time left-

Mathematics
1 answer:
galina1969 [7]3 years ago
5 0

Answer:

(Triangular pyramid)

Lateral area = 1650m^{2}

Total surface area = 1860.1m^{2}

(Triangular prism)

Volume = 660cm^{3}

Step-by-step explanation:

<u> For the triangular pyramid</u>

Area of triangle = \frac{1}{2} × base × height

Area of the base = \frac{1}{2} × 22 × 19.1 = 210.1

Area of the sides = \frac{1}{2} × 22 × 50 = 550

Number of sides (excluding base) = 3

∴ Total Area = 210.1 + (550 × 3)

= 210.1 + 1650 = 1860.1m^{2}

Lateral Area = (550 × 3)  = 1650m^{2}

<u>For the triangular prism</u>

Area of the triangle = \frac{1}{2} × 12 × 5 = 30

Volume = Area x Height

Volume = 30 ×  22 = 660cm^{3}

You might be interested in
Find the remainder when the function is <br>​
prisoha [69]

according to the question

3x-1=0

3x=1

x=⅓

so

f(x)=18x³+x-1

f(⅓)=18.(⅓)³+⅓-1

f(⅓)=18.⅓.⅓.⅓+⅓-1

f(⅓)=6.⅑+⅓-1

f(⅓)=⅔+½-1

f(⅓)=0

<h3>therefore</h3><h3> the remainder is 0</h3>
4 0
3 years ago
Persons having Raynaud's syndrome are apt to suffer a sudden impairment of blood circulation in fingers and toes. In an experime
Citrus2011 [14]

Answer:

There is enough evidence to say that the true average heat output of persons with the syndrmoe differs from the true average heat output of non-sufferers.

Step-by-step explanation:

We have to perform a hypothesis test on the difference between means.

The null and alternative hypothesis are:

H_0: \mu_1-\mu_2=0\\\\H_a: \mu_1-\mu_2

μ1: mean heat output for subjects with the syndrome.

μ2: mean heat output for non-sufferers.

We will use a significance level of 0.05.

The difference between sample means is:

M_d=\bar x_1-\bar x_2=0.63-2.09=-1.46

The standard error is

s_{M_d}=\sqrt{\sigma_1^2/n_1+\sigma_2^2/n_2}=\sqrt{0.3^2/9+0.5^2/9}=\sqrt{ 0.038 } \\\\ s_{M_d}=0.194

The t-statistic is

t=\dfrac{M_d}{s_{M_d}}=\dfrac{-1.46}{0.194}=-7.52

The degrees of freedom are

df=n_1+n_2-2=9+9-2=16

The critical value for a left tailed test at a significance level of 0.05 and 16 degrees of freedom is t=-1.746.

The t-statistic is below the critical value, so it lies in the rejection region.

The null hypothesis is rejected.

There is enough evidence to say that the true average heat output of persons with the syndrmoe differs from the true average heat output of non-sufferers.

5 0
3 years ago
In an inventory-sale, a department store offers 60% off on the original price of their selected clothes. What fraction is taken
Colt1911 [192]

I believe three fifths would be taken off.

8 0
3 years ago
What is a prime factor?
iren [92.7K]
Prime factors are factors of a number that are, themselves, prime numbers. There are many methods to find the prime factors of a number, but one of the most common is to use a prime factor tree.
7 0
3 years ago
Read 2 more answers
I’m having trouble on 10-11, if you can find the answer. Thank you!
PolarNik [594]

Answer:

10-11 is -1

Step-by-step explanation:

i don'T care much for attachments ;)

3 0
3 years ago
Other questions:
  • Which number is IRRATIONAL?<br> A) <br> 16<br> B) <br> 25<br> C) <br> 48<br> D) <br> 100
    6·2 answers
  • PLA HELP PLS I NEED TO PASS !! Mendel team built a structure for a competition using wooden spheres and cylinders. The wood they
    15·1 answer
  • The volume of a cube is found using the formula l3 what is the volume of a cube in cubic feet that is 4/6 of a foot long
    7·1 answer
  • Solve the following using scientific notation and standard notation:
    14·2 answers
  • Maria practices the piano 5/6 of an hour every day how many hours does she practice in 4 days
    14·2 answers
  • 64% of 50 is between which two numbers?
    8·2 answers
  • Can you find the surface area of a pyramid if you know the volume? If so, how?
    5·2 answers
  • Find the percent of area under a normal curve between the mean and the given number of standard deviations from the mean.​ (Note
    5·1 answer
  • What is one of the biggest dangers in using a credit card?
    9·2 answers
  • At a table tennis club, the ratio of boys to girls was 6:5. If there were
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!