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atroni [7]
2 years ago
12

SOME PLEASE HELP ME I HAVE TO TURN THIS IN AND IT DUE SOON

Mathematics
2 answers:
Natali5045456 [20]2 years ago
6 0

Answer: i am sorry but the picture wont load-

Step-by-step explanation:

Iteru [2.4K]2 years ago
4 0
It is between 8 and 9.
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The expressions below model different possibilities for the area of a pool. Identify which of the following expressions have at
Anna007 [38]
<h3>Answer: Choice B is correct</h3>

========================================================

Explanation:

Use a graphing tool like GeoGebra, Desmos, or your graphing calculator to plot each expression given as a separate y equation. Four parabolas should result.

The x intercept is the same as the root or zero of a function.

You should find that only choice B has a root thats larger than 4. That specific root being x = 7.

----------------------------

A non-graphing approach:

You can use the quadratic formula or the factoring method to find the roots.

For choice A, it factors to (x+5)(x+6) = 0. The roots are x = -5 and x = -6 which aren't greater than 4. So we cross choice A off the list. Choices C and D are similar stories.

On the other hand, choice B factors to (x-7)(x+2) = 0 and it has roots of x = 7  and x = -2. This is another way to see why choice B is the answer.

Here are the steps for the quadratic formula for choice B

x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x = \frac{-(-5)\pm\sqrt{(-5)^2-4(1)(-14)}}{2(1)}\\\\x = \frac{5\pm\sqrt{81}}{2}\\\\x = \frac{5\pm9}{2}\\\\x = \frac{5+9}{2} \ \text{ or } \ x = \frac{5-9}{2}\\\\x = \frac{14}{2} \ \text{ or } \ x = \frac{-4}{2}\\\\x = 7 \ \text{ or } \ x = -2\\\\

The quadratic formula is handy in case factoring is either not possible, or guess-and-check is too lengthy of a process. As you can probably tell, we could use the quadratic formula's results to help construct the factored form.

8 0
2 years ago
Match each number on the left with the correct description of the number on the right.
qwelly [4]

Answer:

im not sure the answer tho- just trying

4 0
1 year ago
A bakery sold a total of 80 cupcakes in a day, and 95% of them were chocolate flavored. How many of the cupcakes sold that day w
matrenka [14]

Answer:

76

Step-by-step explanation:

80 of 95%

80/ 100 × 95

8 × 95/ 10

760/ 10

= 76

hope it helps!

3 0
2 years ago
a number less than 3,000. When you divide me by 32, my remainder is 30. When you divide me by 58, my remainder is 44. What numbe
nadezda [96]
I got three numbers ...
798, 1726, & 2654
8 0
3 years ago
62.5% as a decimal <br>please help me
tamaranim1 [39]
0.625 is the answer hope that hepled
5 0
3 years ago
Read 2 more answers
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