7 + 7x; 7(x+1) Are these equivalent? TRUE or FALSE?

Mathematics

1 answer:

avanturin [10]4 years ago

3 0

Answer:

I believe it would be true

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Algebra 1 system of equations -10x − 7y = -12<br><br>x = 4

leonid [27]

$= > \: - 10x - 7y = - 12 \\ = > \: - 10(4) - 7y = - 12 \\ = > \: - 40 - 7y = - 12 \\ = > \: - 7y = - 12 + 40 \\ = > \: - 7y = 28 \\ = > y = - \frac{28}{7} \\ = > \: y = - 4$
Hope this helps!

7 0

3 years ago

Read 2 more answers

Let f(x)=x^2+2x+3 . What is the average rate of change for the quadratic function from x=−2 to x = 5?

miskamm [114]

To find the average rate of change of given function f(x) on a given interval (a,b):

Find f(b)-f(a), b-a, and then divide your result for f(b)-f(a) by your result for b-a:

f(b) - f(a)
------------
b-a

Here your function is f(x) = x^2 - 2x + 3. Substituting b=5 and a=-2,
f(5) = 5^2 -2(5)+3 =? and f(-2) = (-2)^2 - 2(-2) + 3 = ?

Calculate f(5) - [ f(-2) ]
------------------ using your results, above.
5 - [-2]

Your answer to this, if done correctly, is the "average rate of change of the function f(x) = x^2+2x+3 on the interval [-2,5]."

5 0

3 years ago

G(r) = 25 - 31<br> g(4) =

Talja [164]

Answer:

-24

Step-by-step explanation:

25-31=-6

-6 times 4=-24

4 0

3 years ago

Solve. −35x+15>720 Drag and drop a number or symbol into each box to show the solution.