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3 years ago

5

Solve |x| + 7 < 4 i still need help

1 answer:

maw [93]3 years ago

7 0

Hope this helps it’s this what you where looking for ?

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A map is drawn with a scale of 1 inch = 15 miles. Nicole measured the distance to the next town as 3 inches. How many miles does

Hatshy [7]

Answer: 45 miles

Step-by-step explanation:

1 inch = 15 miles. Because there are 3 inches we will need to multiply by 3. 3 x 15= 45

7 0

2 years ago

Below are the solutions for a variable "x." State the solution that matches the graph below.

Aloiza [94]

We have a number line as indicated in the figure above. From this figure we know that the <em>x-values</em> <em>increase f</em><em>rom left to right</em>. So we need to write the solution<span> that matches the previous graph. Taking a look on the graph we see that $x$ begins in -3 and closes in 8, that is, $x$ <em>takes values from -3 to 8</em>. In a mathematical language this is given by the following statement:

</span> $x \in [-3,8]$ <span>

</span>

7 0

3 years ago

Help please and thanks! I'll award brainliest if you show your work as well :)

iren2701 [21]

Answer:

6 inches

Step-by-step explanation:

Formula for surface area of a cylinder:

$SA=2\pi r^{2} +2\pi rh$

Plug in values and solve for the radius:

$180\pi =2\pi r^{2} +2\pi r(9)\\$

Divide both sides by $2\pi$

$90=r^{2} +r(9)$

Subtract 90 from both sides

$0=r^{2} +9r-90$

Use the quadratic equation to find the roots

$x=(-b$ ± $\sqrt{b^2-4ac})*\frac{1}{2a}$ (sorry for formatting, Brainly doesn't

allow equations with ± in them)

$x=\frac{-9+\sqrt{9^2-4*1*90} }{2(1)}$ and $x=\frac{-9-\sqrt{9^2-4*1*90} }{2(1)}$

$x=\frac{(-9+\sqrt{81+360})}{2}$ and $x=\frac{(-9-\sqrt{81+360})}{2}$

$x=\frac{(-9+\sqrt{441})}{2}$ and $x=\frac{(-9-\sqrt{441})}{2}$

$x=\frac{(-9+21)}{2}$ and $x=\frac{(-9-21)}{2}$

$x=\frac{12}{2}$ and $x=\frac{-30}{2}$

$x=6$ and $x=-15$

We can't have a negative radius, so that leaves us with r=6 in.

8 0

2 years ago

Skskkskskskskkskskssksksk help.

ollegr [7]

The answer is 172 cm

4 0

2 years ago

Read 2 more answers

Read the sentence.

AfilCa [17]

Answer:

I think it's simple sentence

6 0

2 years ago