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bezimeni [28]
3 years ago
7

Solve 4(x - 3) - 2(x - 1) > 0.

Mathematics
1 answer:
bekas [8.4K]3 years ago
6 0

Answer:

x>5 ;)

Step-by-step explanation:

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I think could be a about 23.4 but I'm not sure
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The sides of the rectangle are in the ratio of 4:7. If its length is 31.5 in., find the width, the perimeter, and the area of th
AveGali [126]
Let \ell the length and w the width. By the ratio of the sides:

\dfrac{w}{\ell}=\dfrac{4}{7}\Longrightarrow \dfrac{w}{31.5}=\dfrac{4}{7}\Longrightarrow w=\dfrac{4\cdot31.5}{7}\Longrightarrow \boxed{w=18~in.}

Now, we'll find the perimeter p. We'll use the formula below:

p=2(\ell+w)\\\\
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The area of a rectangle is S=w\cdot\ell. Then:

S=w\cdot\ell\\\\
S=18\cdot31.5\\\\
\boxed{S=567~in.^2}
8 0
4 years ago
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An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in Texas. He believes that
tankabanditka [31]

Answer:

1442

Step-by-step explanation:

Given,

Mean is,

\mu = 20.4

Standard deviation,

\sigma = 8.8,

Margin of error(E) = 0.54,

For 98% level of confidence, z_{\frac{\alpha}{2}} = 2.33

Thus, the sample size would be,

n=[\frac{z_{\frac{\alpha}{2}}\times \sigma}{E}]^2

=[\frac{2.33\times 8.8}{0.54}]^2

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3 years ago
BRAINLIEST!!!<br> Find the probability that a point chosen at random lies in the shaded region.
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the answer is 0.56, because there’s 56 shades squares.

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4 years ago
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2(6x + 3) = 18 - 3(16 - 3x)​
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The answer is -12
Hope this helps :)
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3 years ago
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