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Whitepunk [10]
3 years ago
6

pls help i have been doing this for 5 hours i will mark brainliest PLEASE I JUST NEED THE RIGHT ANSWER

Mathematics
2 answers:
jenyasd209 [6]3 years ago
6 0

Answer:

p = 7

Step-by-step explanation:

So the key is that a line has a measure of 180 degrees. Notice the square between the rays. That is a 90-degree angle. So let's add this up and see what's going on

(5p + 2) + 90 + (7p + 4) = 180

12p + 96 = 180

12p = 84

p = 7

ser-zykov [4K]3 years ago
4 0

Answer:

p = 7

Step-by-step explanation:

From the diagram, we can see that all the angles given form a straight line, and therefore add up to 180°.

We can create an equation with what is given:

***The angle with the square marked is 90°.

5p° + 2° + 90° + 7p° + 4° = 180°

You can combine the like terms, getting:

12p° + 96° = 180°

Now, subtract 96° from both sides:

12p° = 84°

Now, divide by 12°, and get:

p = 7

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Mark made 23 out of 45 free throws. What is his average number of free throws made? Express your answer as a decimal using bar n
Yuki888 [10]

Answer:

0.51

Step-by-step explanation:

Total free throws taken = 45

Number of successful free throws = 23

Average number of free throws made (x) :

Successful free throws / Numbe rod free throws taken

23 / 45 = 0.511

x = 0.51

8 0
3 years ago
The weights of steers in a herd are distributed normally. The standard deviation is 300lbs and the mean steer weight is 1100lbs.
gizmo_the_mogwai [7]

Answer:

The probability that the weight of a randomly selected steer is between 920 and 1730 lbs

<em> P(920≤ x≤1730) = 0.7078 </em>

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given mean of the Population = 1100 lbs

Standard deviation of the Population = 300 lbs

Let 'X' be the random variable in Normal distribution

Let x₁ = 920

Z = \frac{x-mean}{S.D} = \frac{920-1100}{300} = - 0.6

Let x₂ = 1730

Z = \frac{x-mean}{S.D} = \frac{1730-1100}{300} = 2.1

<u><em>Step(ii)</em></u>

The probability that the weight of a randomly selected steer is between 920 and 1730 lbs

P(x₁≤ x≤x₂) = P(Z₁≤ Z≤ Z₂)

                  = P(-0.6 ≤Z≤2.1)

                  = P(Z≤2.1) - P(Z≤-0.6)

                 = 0.5 + A(2.1) - (0.5 - A(-0.6)

                 =  A(2.1) +A(0.6)               (∵A(-0.6) = A(0.6)

                 =  0.4821 + 0.2257

                 = 0.7078

<u><em>Conclusion:-</em></u>

The probability that the weight of a randomly selected steer is between 920 and 1730 lbs

           <em> P(920≤ x≤1730) = 0.7078 </em>

5 0
3 years ago
Solve the equation. Then check your solution.
spin [16.1K]
Answer: C. -1 ............
7 0
4 years ago
The function h(x) = x2 + 4x − 11 represents a parabola.
Vitek1552 [10]
A.
 = (x + 2)^2 - 4 - 11
= (x + 2)^2 - 15

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6 0
3 years ago
Read 2 more answers
A. 2 (2)(3)(3)(a)(a)(a)(a)(a)(a)(a)(a)3(3)(5)(5)(a)(a)
marishachu [46]

Answer:

  • E. 2/5 a³

Step-by-step explanation:

  • \sqrt{36a^8/225a^2} =                       simplify
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Also possible option is B if 4a⁶/25 is under root

8 0
2 years ago
Read 2 more answers
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