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FromTheMoon [43]
3 years ago
14

Anybody help me please!!!!!!!!

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
7 0

Answer:

A reflection over the x-axis

Step-by-step explanation:

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Mr. Robredo is building a fence around a rectangular region with 36 feet of fencing. The area of the rectangular region is 65 sq
Rufina [12.5K]
P = 2(L + W)
P = 36
36 = 2(L + W)
36/2 = L + W
18 = L + W....L = 18 - W

A = L * W
A = 65
L = 18 - W

65 = W(18 - W)
65 = 18W - W^2
W^2 - 18W + 65 = 0
(W - 13)(W - 5) = 0

W - 13 = 0  .....L = 18 - 13
W = 13            L = 5
                        

W - 5 = 0         L = 18 - 5
W = 5              L = 13

Not exactly sure which (length or width)...but one is 13 ft and the other is 5 ft
8 0
3 years ago
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Determine the sample size required to estimate the mean score on a standardized test within 4 points of the true mean with 98% c
Darina [25.2K]

Answer:

67

Step-by-step explanation:

You have to use fractions to show your work and I'm not going to do that but just know that it is the answer.

3 0
2 years ago
haily brought m pencils for $0.50 each and n pens for 0.75 each. She spent 0.5m+0.75n dollars. what does the term 0.75n represen
SpyIntel [72]

Answer:

It represents n pens bought

6 0
1 year ago
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Inessa05 [86]

We have the following expression given:

(4y^3+28y^2)+(y+7)

We can start selecting as common factor 4y^2 and we got:

4y^2(y+7)+(y+7)

Now we can select y+7 as common factor and we got:

(y+7)\left\lbrack 4y^2+1\right\rbrack

So then our final answer would be:

(y+7)(4y^2+1)

3 0
1 year ago
I think of a number.
Evgen [1.6K]

Answer:

yes

Step-by-step explanation:

4 0
2 years ago
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