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Ilia_Sergeevich [38]
3 years ago
8

Ms. De Leon wants to produce different sets of test questions for her essay test. If she plans to do this by putting together 3

out of 5 questions she prepared, how many different sets of questions could she contruct?
A.10
B. 20
C. 60
D. 80​
Mathematics
1 answer:
gladu [14]3 years ago
5 0
The correct answer is b
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Can anyone show me how to do this?
mrs_skeptik [129]

Answer:

It's 3 feet

Step-by-step explanation:

Because you are trying to reach the window that is 15 feet, so you would place the 18 foot ladder 3 feet from the house so then it would be at an angle and then it'll reach to the window properly.

3 0
3 years ago
a bowl of grapes has a total massif 265 grams. the bowl has a mass of 121 grams. what is the mass of the grapes
sveticcg [70]

Answer:

144 grams

Step-by-step explanation:

the total mass of the bowl of grapes includes the bowl. to get the mass of the grapes, we need to subtract the mass of the bowl. 265 grams - 121 grams is 144 grams.

7 0
2 years ago
How do you find the area of a triangle if you only know it's three sides?
DiKsa [7]
You would have to find the height.

To do this, you cut the triangle from the upper vertex to the base to create two new triangles.

Then you use the Law of Cosines. You could use the google calculator for this by searching “law of cosines calculator” and inputting the values, but in case of a test, the formula is a^2 = b^2 + c^2 - 2bc cosA

If you could provide an example of a triangle, I will gladly help you with the steps! Hope this helped!
8 0
3 years ago
PLZZZZZ NEED HELP!!!!!!
Alisiya [41]
Answer is C. multiply by 3 - square root 5

using a^2 - b^2 = (a + b)(a - b)
4 0
3 years ago
Wynn is 24 years old and has decided to reduce the number of cups of coffee he buys by 2 cups per day. One cup of coffee typical
Usimov [2.4K]

The total amount he would have at 69 is $343,347.81.

<h3>What is the total amount saved?</h3>

The formula that can be used to determine the future value of the deferred annuity is:

Future value = annuity factor x monthly deposit

Annuity factor = {[(1+r)^n] - 1} / r

Where:

  • r = interest rate = 5.5 /2 = 2.75%
  • n = number of payments = 2 x (69 - 24) = 90

Amount he would save every 6 months:

  • amount saved per day = $2.50 x 2 = $5
  • Amount saved per month : $5 x 30 = $150
  • Amount saved every 6 months = $150 x 6 = $900

Future value : 900 x {[(1.0275^90) - 1] / 0.275}= $343,347.81

To learn more about annuities, please check: brainly.com/question/24108530

#SPJ1

5 0
2 years ago
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