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DiKsa [7]
3 years ago
12

Solve t^2a=t^2e−r for t

}e-r" alt="t^{2}a=t^{2}e-r" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Alex777 [14]3 years ago
5 0

\bf t^2a=t^2e-r\implies t^2a-t^2e=-r\implies t^2(a-e)=-r \\\\\\ t^2=\cfrac{-r}{a-e}\implies t=\pm\sqrt{\cfrac{-4}{a-e}}

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Which of the following is a composite number? A. 91 B. 139 C. 13 D. 29
Nonamiya [84]
A composite number is a number that's not prime. A prime number is a number who only has 2 factors (1 and itself). A composite number has multiple factors.

For example;
7 is prime, as the factors of 7 are only 1&7.
14 is composite, as there are 4 factors (more than 2); 1&14, 2&7.

91 is composite, as it has the following factor pairs; 1&91, 7&13.

139 only has 1&19, making it prime.
13 only has 1&13, making it prime.
29 only has 1&13, making it prime.

Your answer is A.) 91.

I hope this helps!

5 0
3 years ago
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Rashid [163]
D. 0.7910= 0.791 is the answer to your problem.
6 0
3 years ago
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What is the equation of the line that passes through the point <br> (−3,5) and has a slope of -2?
GenaCL600 [577]

Answer:

y = -2x-1

Step-by-step explanation:

y = -2x+b

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3 0
3 years ago
5. A gallon of paint covers 300 square feet.
Vladimir79 [104]

Step-by-step explanation:

wall 25×12=300

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3 0
2 years ago
This table shows the number of miles that Sharon rode her bicycle in six weeks. If the mean number of miles she rode is 30, find
Nastasia [14]
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(139 + x) / 6 = 30 .....multiply both sides by 6
139 + x = 30 * 6
139 + x = 180
x = 180 - 139
x = 41......so during week 3, she rode her bike 41 miles

5 0
3 years ago
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