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Finger [1]
2 years ago
12

Rocio poured a square patio outside her back door. Each side measured 8.5 feet. Which equation represents the perimeter, in feet

, of Rocio's patio? A. 8.5 + 8.5 = 17 B. 4 × 8.5 = 34 C. 2 × 8.5 = 17 D. 8.5 × 8.5 = 72.25
Mathematics
2 answers:
jenyasd209 [6]2 years ago
8 0

Answer:

<h3>B. 4 × 8.5 = 34</h3>

Step-by-step explanation:

The formula for calculating the perimeter of the square patio is expressed as;

P = 4L

L is the length of each side of the square patio

Given

L = 8.5 feet

Required

Perimeter in feet of Rocio's patio

Substitute the given parameter into the formula;

Perimeter = 4 * 8.5

Perimeter = 34ft²

Option B is correct.

deff fn [24]2 years ago
7 0

Answer:

Step-by-step explanation:

72.25 the answer

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We want to determine if the probability that a student enrolled in an accelerated math pathway is independent of whether the stu
Molodets [167]

Answer:

The correct option is (c).

Step-by-step explanation:

The complete question is:

The data for the student enrollment at a college in Southern California is:

                    Traditional          Accelerated            Total

                  Math-pathway     Math-pathway

Female              1244                       116                   1360

Male                  1054                       54                    1108

Total                  2298                     170                  2468

We want to determine if the probability that a student enrolled in an accelerated math pathway is independent of whether the student is female. Which of the following pairs of probabilities is not a useful comparison?

a. 1360/2468 and 116/170

b. 170/2468 and 116/1360

c. 1360/2468 and 170/2468

Solution:

If two events <em>A</em> and <em>B</em> are independent then:

P(A|B)=P(A)\\\\\&\\\\P(B|A)=P(B)

In this case we need to determine whether a student enrolled in an accelerated math pathway is independent of the student being a female.

Consider the following probabilities:

P (F|A) = \farc{116}{170}\\\\P(A|F)=\frac{116}{1360}\\\\P(A)=\frac{170}{2468}\\\\P(F)=\frac{1360}{2468}

If the two events are independent then:

P (F|A) = P(F)

&

P (A|F) = P (A)

But what would not be a valid comparison is:

P (A) = P(F)

Thus, the correct option is (c).

4 0
3 years ago
Write an equation to express the value of h + k
Dahasolnce [82]
So since, they are the same distance from zero, they should be the oppposite of each other so in other words, k=-h and h=-k

so k+h=(subisute)k-k=-h+h=0 because they cancel

4 0
3 years ago
Read 2 more answers
1. A number plus 7 is at most 4.​
nasty-shy [4]

Answer:

-3

4 - 7 = -3.

-3 + 7 = 4.

They are in a fact family.

The answer is -3.

Hope it helps!

3 0
3 years ago
Read 2 more answers
HIJK is a rectangle. Find the value of x and find the length of each diagonals. If hj=19+2x and ik=3x+22
viva [34]
Hj  and ik are  opposite sides of the rectangle so they areequal in length.

19 + 2x = 3x + 22
19-22 = 3x-2x
x = -3 

We can't find the length of the diagonals as we have no information about the width.
8 0
3 years ago
if the equation 2x^2+ bx+ 5=0 has no real solutions, which of the following must be true A. b^2 &lt; 10 B. b^2&gt; 10 C. b^240​
melisa1 [442]

Answer:

C. b²< 40

Step-by-step explanation:

2x²+ bx + 5=0 has no real solutions

=> D< 0

b² < 4ac

b²< 4(2)(5)

b²< 40

6 0
3 years ago
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