4 years ago

Which of the following statements about the mean is false?

Mathematics

1 answer:

Harlamova29_29 [7]4 years ago

8 0

Answer:

The value of the mean reflects both the number and the value of cases. is false

Step-by-step explanation:

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The diagram shows a right-angled triangle.

olga nikolaevna [1]

Answer:

h = 9.87 cm

Step-by-step explanation:

Given that,

Base, b = 8 cm

Height = h

Angle, $\theta=51^{\circ}$

We need to find the value of h. We can use trigonometry to find h.

$\tan\theta=\dfrac{\text{Perpendicular}}{\text{Base}}\\\\\tan(51)=\dfrac{h}{8}\\\\h=\tan(51)\times 8\\\\h=9.87\ cm$

So, the height of the triangle is 9.87 cm.

7 0

3 years ago

Pls help me find the operations of 3a^2+4a^2+7a^2

Ber [7]

Answer:

14a^2

Step-by-step explanation:

3a^2+4a^2+7a^2

Combine like terms

Factor out a^2

a^2(3+4+7)

a^2(14)

14a^2

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3 years ago

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Fofino [41]

His average is 4.2 seconds. hope it helps

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3 years ago

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Qwertyuiopasdfghjklzxcvbnm

Marina CMI [18]

Answer:

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3 years ago

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If 3 times a number minus 2 equals 13, what is the number? <br> A. 4<br> B. –6<br> C. 5<br> D. 2

Savatey [412]

Let the number be x:

3*x-2=13

∴3x=13+2

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3 years ago

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