Can someone please help me answer my question? I need an explanation as well!!! WILL GIVE BRAINLIEST IF CORRECT!!!

Mathematics

2 answers:

Paul [167]3 years ago

6 0

Answer:

8 × (5 - 2) = (8 × 5) - (8 × 2)

I hope this helps!

Anni [7]3 years ago

4 0

Answer:

The blanks are both 8

Step-by-step explanation:

This is because of the distribution property. Since there is parenthesis, this means that the 8 is being distributed to both the 5 and -2.

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Cassie has test grades of 71, 78 and 83 on the first three tests in her

Neporo4naja [7]

Answer:

x ≥ 88

Step-by-step explanation:

In order to have at least an average of 80 after 4 tests, the sum of her scores must be at least 80 * 4 = 320 so we can write the following inequality:

71 + 78 + 83 + x ≥ 320

232 + x ≥ 320

x ≥ 88

3 0

3 years ago

Read 2 more answers

Use the parabola tool to graph the quadratic function f(x)=x2−12x+27.

Licemer1 [7]

Remember that for a quadratic function of the form $a x^{2} +bx+c$ we can find its vertex with formula: $h= \frac{-b}{2a}$ where $h$ is the x-coordinate of the vertex; then we will find the y-coordinate by replacing $h$ in our original function.

From the question know that $a=1$ and $b=-12$ , so lets replace those values in our vertex formula to find the x-coordinate of our vertex:
$h= \frac{-(-12)}{2(1)}$
$h= \frac{12}{2}$
$h=6$
Now lets replace that value into our original function to find the y-coordinate of our vertex:
$f(6)=6^{2} -12(6)+27$
$f(6)=36-72+27$
$f(6)=-9$
Finally, we have our vertex (6,-9)

Now to graph our function we are going to take advantage of its line of symmetry; if the vertex is (6,-9) the line of symmetry of the parabola is x=6, so if we chose the point (6,0), our second point will have coordinates (3,0) as you can see in the picture.