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3 years ago

PLEASE HELP FAST 20 POINTS! I need A. And B.

Mathematics

1 answer:

Nataly_w [17]3 years ago

8 0

Answer:

Diamater is independent because it will always be the constant so it will keep going up by 2

Cost is dependent because it relies on the diamater

Step-by-step explanation:

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I have two coins. One is fair, and has a probability of coming up heads of.5. \text {The second is bent, and has a probability o

aniked [119]

Answer:0.625

Step-by-step explanation:

Given

There are two coins one is fair and another is bent

Probability of getting a head on fair coin is 0.5

Probability of getting a head on bent coin is 0.75

If both coins are tossed once

probability of getting at least one of the coin will come up tails is

$P=1-P(both\ heads)$

$P=1-0.5\times 0.75$

$P=1-0.375$

$P=0.625$

6 0

4 years ago

The time it takes you to go a certain distance varies inversely with the speed of travel. Suppose it takes you 4 hours to get to

fgiga [73]

$\bf \qquad \qquad \textit{inverse proportional variation}
\\\\
\textit{\underline{y} varies inversely with \underline{x}}\qquad \qquad y=\cfrac{k}{x}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------$

$\bf \textit{time it takes varies inversely with the speed rate}\qquad \stackrel{time}{t}=\cfrac{k}{\stackrel{rate}{r}}
\\\\\\
\textit{we also know that }
\begin{cases}
t=\stackrel{hrs}{4}\\
r=\stackrel{mph}{50}
\end{cases}\implies 4=\cfrac{k}{50}\implies 200=k
\\\\\\
\boxed{t=\cfrac{200}{r}}
\\\\\\
\textit{if your rate r = 40, what is your distance \underline{t}?}\qquad t=\cfrac{200}{40}$

3 0

3 years ago

7.50x +4.50y = 2,212.5<br> x+y = 375

AURORKA [14]

Answer:

5x+3y-1475=0

Step-by-step explanation:

if this helps please mark brainliest <3

3 0

3 years ago

What is 1.63 + m- .12=

tatuchka [14]

M+1.51 is your answer. first you calculate the difference and then you reorder the values.

4 0

3 years ago

Help please!!!!

Mrac [35]

Answer:

a = 2

b = 18

a/b = 1/9

Step-by-step explanation:

5 0

3 years ago