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earnstyle [38]
3 years ago
7

Can someone explain this to me? ​

Mathematics
1 answer:
Luda [366]3 years ago
5 0

Answer:

Its the first answer choice, basically just plug 3a +1 for a and solve

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Solve the following equation for b be sure to take into account whether a letter is capitalized or not f = ad
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Answer:

Step-by-step explanation:

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3 years ago
Name the plane represented by each surface of the box.<br><br> the top
nydimaria [60]

Answer:

Hello the required image is missing attached below is the missing box

answer : FHGE

Step-by-step explanation:

The plane representing the top surface of the box is FHGE. there are still other planes there but do not represent the entire top surface of the Box and they are : FGE, HGE, FHG and FHE. This is because a plane can be represented by three to four Noncollinear points on a solid like a box.

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If the ratio of star shaped cookies to circular cookies is 5: 6 and the ratio of circular cookies to triangular cookies is 3: 10
SCORPION-xisa [38]

Answer:

1:4

Step-by-step explanation:

Without loss of generality, let there be 5 star shaped cookies. Following the proportions given, there will be 6 circular cookies. We can set up the following proportion to find out how many triangular cookies there would be:

\frac{3}{10}=\frac{6}{x},\\3x=60,\\x=20.

Therefore, for every 5 star shaped cookies there will be 20 triangular cookies.

Simplifying this ratio we have 5:20 \implies \boxed{1:4}.

6 0
3 years ago
Which of the following is an equation for the sine wave graphed below?
frutty [35]

Answer:

A y=8\sin \dfrac{1}{2}x

Step-by-step explanation:

From the graph you can see that the period of the function is

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Now the period of the function y=8\sin kx is

T=\dfrac{2\pi}{k}

Thus,

4\pi=\dfrac{2\pi}{k}\Rightarrow 4\pi k=2\pi\\ \\k=\dfrac{2\pi}{4\pi}=\dfrac{1}{2}

and the expression for the function is

y=8\sin \dfrac{1}{2}x

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3 years ago
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