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PSYCHO15rus [73]
3 years ago
13

I need help with number 7

Mathematics
1 answer:
statuscvo [17]3 years ago
8 0
It's an equilateral triangle. So from what I can see the measure of angle D will be 60 because 60+60+60=180 and they are all congruent so it should be 60.
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Wendy has 5 and 1 over 3 feet of ribbon. How many 2 over 3 foot pieces can Wendy cut from the 5 and 1 over 3 feet of ribbon? Sho
denis-greek [22]

Answer:

Your answer is 8

Step-by-step explanation:

First you have to convert the mixed number into an improper fraction. To do this, multiply the denominator by the whole number. Then add the numerator and put that answer in a fraction over the original. So it would be 3*5=15+1=16/3. So now that the denominators are the same, all you need to do is see how many times 2 goes into 16. 16/2 which is 8. Answer = 8

6 0
3 years ago
A 3
Andrew [12]

Answer:

There are (63) combinations. The notation means "six choose three". Out of six items (flavors) choose three.

(nk)=n!k!(n−k)!.

(63)=6!3!3!.

Think of it this way. There are 6 ways to choose a flavor. Once you choose, there are 5 ways to choose the next. After that, there are 4 flavors left. which is 6!/3!=6⋅5⋅4⋅3⋅2⋅13⋅2⋅1=6⋅5⋅4=120.

But, you could have chosen {chocolate,vanilla,strawberry} and you get the same combination as {vanilla, strawberry, chocolate} so we have to divide by 3!=3⋅2⋅1=6 to account for the order of choosing.

So the number of combinations of flavors is (63)=1206=20.

<h3>Mark me a brainlist</h3>

7 0
2 years ago
Parker ran 800 meters, 6 kilometers,and 4,000 centimeters. How many meters did he run all together?
Vesna [10]
The correct answer is 6,840 meters. Hope this helps! ;)
6 0
3 years ago
Read 2 more answers
Solve 2x 2 + 8x - 12 = 0 by completing the square. What are the solutions?
oee [108]
I attached a picture of how I worked out the answer

5 0
3 years ago
Can someone please help with NUMBER 7?!! It’s my last one I will mark brainliest to the best answer
Nikolay [14]

Answer:

1, 3, 9, 27

Step-by-step explanation:

a_n = 3^{n - 1}

You need the first 4 terms, so let n = 1, and evaluate the expression. Then do the same for n = 2, n = 3, and finally n = 4.

n = 1

a_1 = 3^{1 - 1} = 3^0 = 1

n = 2

a_2 = 3^{2 - 1} = 3^1 = 3

n = 3

a_3 = 3^{3 - 1} = 3^2 = 9

n = 4

a_4 = 3^{4 - 1} = 3^3 = 27

7 0
3 years ago
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