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nevsk [136]
4 years ago
5

is a stem and leaf plot or a bar graph appropriate to display the number of students at three schools? explain your choice

Mathematics
2 answers:
Alex17521 [72]4 years ago
8 0
Double bar graph will be the answer
Dominik [7]4 years ago
4 0
Bar graph because a stem and leaf plot is used when there are big numbers and also when there is a lot of numbers. It CANNOT be used for comparing different data.

Bar graphs are used to compare data. To be more specific, you should use a double bar graph because:

Double bar graphs have 2 or more bars for compariong
Bar graphs are usually used to show length

Answer: Double bar graph (bar graph)

Hope this helps :)
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Answer:

Step-by-step explanation:

The rocket will hit the ground when y = 0. If you use the quadratic equation:

x = (-248±√(2482-4(-16)(116))/(2(-16))

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3 years ago
What is 863.141 in expanded form in decimals
liraira [26]
800 + 60 + 3 + 0.1 + 0.04 + 0.001
That's 863.141 in expanded form.
8 0
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Y = 10 when x = 2 find y when x = 3
Tresset [83]
You are going to want to isolate the variable shave u done tht yet

3 0
3 years ago
Prove it. this question is from trigonometry ​
konstantin123 [22]

Answer:

See below for step-by-step proof.

Step-by-step explanation:

\textsf{Given expression}:

\cos^6 \theta+\sin^6 \theta

\textsf{Apply exponent rule} \quad a^{bc}=(a^b)^c:

\implies (\cos^2 \theta)^3+(\sin^2 \theta)^3

\textsf{Use the identity}\quad a^3+b^3=(a+b)^3-3ab(a+b):

\implies (\cos^2 \theta+\sin^2 \theta)^3-3 \cos^2 \theta\sin^2 \theta (\cos^2 \theta+\sin^2 \theta)

\textsf{Use the identity}\quad \sin^2 \theta + \cos^2 \theta=1:

\implies (1)^3-3 \cos^2 \theta\sin^2 \theta (1)

\implies 1-3 \cos^2 \theta\sin^2 \theta

\implies 1-3 (\cos \theta\sin \theta)^2

\textsf{Use the identity}\quad \sin 2 \theta=2 \sin \theta \cos \theta \implies \dfrac{1}{2}\sin 2 \theta= \sin \theta \cos \theta:

\implies 1-3 \left( \dfrac{1}{2}\sin 2 \theta\right)^2

\implies 1-\dfrac{3}{4} \sin^2 2 \theta

\textsf{Use the identity}\quad \sin^2 2\theta + \cos^2 2\theta=1 \implies \sin^2 2\theta=1-\cos^2 2\theta

\implies 1-\dfrac{3}{4} \left(1-\cos^2 2 \theta\right)

\implies 1-\dfrac{3}{4} +\dfrac{3}{4}\cos^2 2 \theta

\implies \dfrac{1}{4} +\dfrac{3}{4}\cos^2 2 \theta

\textsf{Factor out }\dfrac{1}{4}:

\implies \dfrac{1}{4}\left(1+3\cos^2 2 \theta\right)

\textsf{Use the identity}\quad \cos (4 \theta)=2 \cos^2 2\theta - 1 \implies \cos^2 2 \theta=\dfrac{1}{2}\cos 4 \theta+\dfrac{1}{2}:

\implies \dfrac{1}{4}\left(1+3\left(\dfrac{1}{2}\cos 4 \theta+\dfrac{1}{2}\right)\right)

\implies \dfrac{1}{4}\left(1+\dfrac{3}{2}\cos 4 \theta+\dfrac{3}{2}\right)

\implies \dfrac{1}{4}\left(\dfrac{5}{2}+\dfrac{3}{2}\cos 4 \theta\right)

\implies \dfrac{1}{4} \cdot \dfrac{1}{2}\left(5+3\cos 4 \theta\right)

\implies \dfrac{1}{8}\left(5+3\cos 4 \theta\right)

6 0
2 years ago
Someone finish this rq
solmaris [256]

Answer:

1

Step-by-step explanation:

y= 4x+?

points on the graph

(-1, -3) and (1, 5)

-3= -1*4+?

  • -3= -4+1  ⇒ ? = 1

5= 1*4 +?

  • 5= 4+ 1 ⇒ ? = 1

Verified by second point

3 0
4 years ago
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