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nekit [7.7K]
3 years ago
8

Please help, don’t know the answerWill mark as brainliest

Mathematics
1 answer:
Ludmilka [50]3 years ago
6 0

Answer:

9 is the area

Step-by-step explanation:

Base x height x 1/2  = area

3 x 6 x 1/2 = area

18 x 1/2  = area

area  = 9

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The distribution of heights of both five‑year old boys and seven‑year old boys is approximately Normal. The mean height of a fiv
Dafna11 [192]

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

5 years old:

Mean height (m) = 43

Standard deviation (σ) = 1.8

Height on fifth birthday (x) = 44

7 years old:

Mean height (m) = 48

Standard deviation (σ) = 2.1

Height on 7th birthday (x) = 49

To get the standardized score :

USe :

Zscore = (x - mean) / standard deviation

At 5 years:

Zscore = (44 - 43) / 1.8

Zscore = 1/ 1.8

Zscore = 0.556

At 7 years:

Zscore = (49 - 48) / 2.1

Zscore = 1/ 2.1

Zscore = 0.476

At the different ages, John's growth rate in height declined after the 5 th years as the standardized score at 5 years is greater than at 7 years.

6 0
4 years ago
If f(x)=2x^2-x-6 and g(x)=x^2-4 find f(x)/g(x)
DENIUS [597]
\dfrac{f(x)}{g(x)}=\dfrac{2x^2-x-6}{x^2-4}\\
\dfrac{f(x)}{g(x)}=\dfrac{2x^2-4x+3x-6}{(x-2)(x+2)}\\
\dfrac{f(x)}{g(x)}=\dfrac{2x(x-2)+3(x-2)}{(x-2)(x+2)}\\
\dfrac{f(x)}{g(x)}=\dfrac{(2x+3)(x-2)}{(x-2)(x+2)}\\
\dfrac{f(x)}{g(x)}=\dfrac{2x+3}{x+2}
6 0
3 years ago
What are the vertices of POR?
cupoosta [38]

Answer is (d) P, Q , R

Any triangle has 3 vertices , after which its name is justified

8 0
3 years ago
What is the solution set for the given inequality if the replacement set for r is {5, 6, 7, 8, 9, 10}?
Sophie [7]
Hi there! The answer is B.

5r \leqslant 6r - 8
Subtract 6r from both sides.

- r \leqslant  - 8
Divide both sides of the inequality by -1. Remember that dividing by a negative makes the sign flip.

r \geqslant 8
Therefore, the solution must be bigger than or equal to 8. From the given solution set, the answer is B. {8, 9, 10}

~ Hope this helps you!

3 0
3 years ago
Which equation represents the line shown in the graph above?
dangina [55]

Answer:

b

Step-by-step explanation:

5 0
3 years ago
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