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Mrrafil [7]
3 years ago
15

7(x-9y) need an answer

Mathematics
1 answer:
Serjik [45]3 years ago
6 0

Answer:

7x - 63y

Step-by-step explanation:

Given

7(x - 9y) ← multiply each term in the parenthesis by 7

= 7x - 63y

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A number is called squarefree if it is not divisible by the square of a positive integer greater than one. find the number of sq
german
Count the number of positive integers less than 100 that do not contain any perfect square factors greater than 1.

Possible perfect squares are the squares of integers 2-9.
In fact, only squares of primes need be considered, since for example, 6^2=36 actually contains factors 2^2 and 3^2.
Tabulate the number (in [ ])of integers containing factors of 
2^2=4: 4,8,12,16,...96 [24]
3^2=9: 9,18,....99  [11] 
5^2=25: 25,50,75  [3]
7^2=49:  49,98 [2]

So the total number of integers from 1 to 99
N=24+11+3+2=40
=>
Number of positive square-free integers below 100 = 99-40 = 59
3 0
3 years ago
Write the quadratic equation y=x^2-6x+1 in vertex form
skelet666 [1.2K]
Y=(x-3)^2-8----------------------------------
8 0
3 years ago
Y=2/3(×+7)(×+1)<br>graph​
Afina-wow [57]

Answer:

I'm not sure but try -7,-1

8 0
3 years ago
What is the average rate of change for ƒ(x) = −2^x + 70 over the interval 2 ≤ x ≤ 6? A) −15 B) −16 C) −30 D) −32
N76 [4]

Answer:

A

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [a, b ] is

\frac{f(b)-f(a)}{b-a}

Here [ a, b ] = [ 2, 6 ], thus

f(b) = f(6) = - 2^{6} + 70 = - 64 + 70 = 6

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Step-by-step explanation:

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