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
sdas [7]
3 years ago
11

ILL GIVE THE BRAINLIEST pls help me with this question EVERYTHING IS IN THE PICTURE PLS HELP DUE TODAY ​​IF YOU PUT A WRONG ANSW

ER ILL REPORT YOU FASTER THAN ASSIGMENT IS DUE ​

Mathematics
2 answers:
Effectus [21]3 years ago
6 0

Answer:

90mm cubed

Step-by-step explanation:

alexgriva [62]3 years ago
6 0

Answer:

90 mm³

Step-by-step explanation:

V = area of base multiplied by height

base in this example is the triangle, which has an area of 15/2 or 7.5

height = 12

12 x 7.5 = 90

You might be interested in
Suppose we are interested in analyzing the weights of NFL players. We know that on average, NFL players weigh 247 pounds with a
Diano4ka-milaya [45]

Answer:

a) The standard error would be of 8.58 pounds.

b) The margin of error is 14.11 pounds.

c) The 90% confidence interval for the population mean is between 232.89 pounds and 261.11 pounds

Step-by-step explanation:

a.What is the standard error?

The standard error is

s = \frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample. So

s = \frac{47}{\sqrt{30}} = 8.58

The standard error would be of 8.58 pounds.

b.What is the margin of error at 90% confidence?

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find the margin of error M as such

M = z*s = 1.645*8.58 = 14.11

The margin of error is 14.11 pounds.

c. Using my sample of 30, what would be the 90% confidence interval for the population mean?

Lower bound: Sample mean subtracted by the margin of error.

247 - 14.11 = 232.89 pounds

Upper bound

247 + 14.11 = 261.11 pounds

The 90% confidence interval for the population mean is between 232.89 pounds and 261.11 pounds

4 0
3 years ago
X^3+18x−3x^2−54 Factor over complex numbers
adoni [48]

Answer:

4565

Step-by-step explanation:

4 0
3 years ago
The equation below describes a proportional relationship between x and y. What is the constant of​ proportionality?
Molodets [167]

Answer:

10

Step-by-step explanation:

6 0
3 years ago
What is the area of angle ABC? Round to the nearest tenth
otez555 [7]
Area formula: L · W · H
Length: 0.5
Width: 5
Height: 5

Answer: 12.5²

(It's squared because 5√2 contains a square root.) 
5 0
3 years ago
Find the x- and y- intercepts of the equation -x+5y=10.
mario62 [17]

Answer:

X Intercept: (-10,0), Y Intercept: (0,2)

Step-by-step explanation:

Well, firstly you need to rewrite the equation to make it easier. After rewriting it you have the equation y=x/5+2 by adding the x to the right side and dividing everything by 5. Now simply plug in your zeroes in their respective places. For the x intercept, your y value must equal 0 so we have the equation 0=x/5+2. After solving it, x must be -10 in order for our y value to be 0 getting us for the x intercept (-10,0). For the y intercept, your x value must equal zero so you simply subsitute zero in the equation for x which I will do here: y=0/5+2. If our x value is zero, consequently, our y value will be 2 getting us for the y intercept, (0,2).

4 0
2 years ago
Other questions:
  • Which expression is equivalent to 34 ⋅ 3−9?
    10·2 answers
  • Harvey worked 36 hours this week. He earns $28.46 an hour. How much did he earn this week
    13·2 answers
  • Graph the line y = 2x.
    9·1 answer
  • 3. Remember the distributive law: 2(36) = 2(30 + 6) = (2 x30) + (2 X 6) = 60 + 12 = 72 Use this law to solve: 2x(x+6 )​
    14·2 answers
  • Element X is a radioactive isotope such that its mass decreases by 73% every
    12·1 answer
  • I need help finishing my homework please
    14·2 answers
  • Drag and drop the constant of proportionality into the box to match the table.
    12·1 answer
  • Ian invested $20,000 in an account paying an interest rate of 3\tfrac{1}{4}3 4 1 ​ % compounded continuously. Lauren invested $2
    12·1 answer
  • Find the missing angle​
    6·1 answer
  • Help me pls <br> need helppppppp
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!