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galina1969 [7]
3 years ago
5

sarah has a younger brother who is 5 years younger than herself and another brother who is 8 years younger than herself. She obs

erves that the product of her brothers' ages is equal to the age of her 40 year old father how old is sarah
Mathematics
1 answer:
ycow [4]3 years ago
4 0

Answer: 13

Step-by-step explanation:  k

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Which expression is equivalent to
Kruka [31]

Answer:

B) 1/x^2

Step-by-step explanation:

Simplify the following:

x^9/x^11

Hint: | For all exponents, a^n/a^m = a^(n - m). Apply this to x^9/x^11.

Combine powers. x^9/x^11 = x^(9 - 11):

x^(9 - 11)

Hint: | Evaluate 9 - 11.

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2 years ago
I need help please. ​
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Step-by-step explanation:

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7 0
3 years ago
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4 0
3 years ago
There are 1265 students at Cypress Middle School. 42% of the students are enrolled in PE. Which equation could be used to repres
Dovator [93]

Answer:

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Step-by-step explanation:

There are 1265 students in Cypress Middle School. So we already know one part of the equation. 42% of these students are in PE. So we know that 42% of  these 1265 students are in PE. Of these means you probably have to multiply 42% and 1265. 42% = 0.42. So to write an equation we take the 0.42 and 1265 and put it together. Therefore, 0.42 times 1265=x.

7 0
3 years ago
When the product of 6 and the square of a number is increased by 5 times the number, the result is 4.
il63 [147K]

Let x be the unknown number. Its square is x^2. The product of 6 and the square of the number is 6x^2. Increase this by 5 and you get 6x^2+5.

If this has to equal 4, you have 6x^2+5=4

4 0
3 years ago
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