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3 years ago

Help !!!!!!!!!!!!!!!!

Mathematics

1 answer:

algol [13]3 years ago

4 0

Multiply the coefficients -5 and 3 which gives you -15
Then multiply variables. So x^(2+1) and it gives you x^3. Then y^(3+2) and it gives you y^5.
The final answer is -15x^3y^5

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Let f(x) = 13 - |2x+ 1|. Find all x for which f(x) less than or equal to 14

Art [367]

Answer:

$x \leqslant -1\: or \: x \geqslant - 1$

Step-by-step explanation:

The given function is

$f(x) = 13 - |2x + 1|$

We want to find all values of x for which:

f(x) is greater than or equal to 14.

This implies;

$13 - |2x + 1| \geqslant 14$

Subtract 13 from both sides;

$- |2x + 1| \geqslant 14 - 13$

$|2x + 1| \geqslant - 1$

By definition of the absolute value function,

$- (2x + 1) \geqslant - 1 \: or \: (2x + 1) \geqslant - 1$

Divide through the first inequality and and reverse the inequality sign:

$2x + 1 \leqslant -1 \: or \: 2x + 1 \geqslant - 1$

$2x \leqslant -1 - 1 \: or \: 2x \geqslant - 1 - 1$

$2x \leqslant -2 \: or \: 2x \geqslant - 2$

$x \leqslant -1\: or \: x \geqslant - 1$

8 0

3 years ago

Can anyone help me with the pictures below? Will mark brainliest!

Ira Lisetskai [31]

Answer:

a is, A to c, B E to f, c is g to h I think? 2 a is no, cause it doesn't add up to 90, b is no for the same reason and c is no.

Step-by-step explanation:

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8 0

4 years ago

Read 2 more answers

Rosa is making a poster that has a rainbow as part of the design. Using a compass she draws a semicircle with a radius of 18 cm.

Keith_Richards [23]

Answer:

282.7 cm²

Step-by-step explanation:

Hello There!

To find the area of the shaded area we are going to want to find the area of the whole semi circle and subtract it by the area of the smaller semi circle

To find the area of a semicircle we use this formula

$A=\frac{\pi r^2}{2}$

where r = radius

For the large semi circle

The radius of the larger semi circle is 18 cm so we plug in 18 into r in the formula

So..

$A=\frac{\pi 18^2}{2} \\18^2=324\\324\pi =1017.87602\\\frac{1017.87602}{2} =508.9380099$

So the area of the whole semi circle is 508.9380099 cm²

Now to find the area of the smaller semi circle

The radius for the smaller semi circle is 12 cm so we plug in 12 into r in the formula

$A=\frac{12^2\pi }{2} \\12^2=144\\144\pi =452.3893421\\\frac{452.3893421}{2} =226.1946711$

so the area of the smaller semi circle is 226.1946711cm²

Finally we want to subtract the area of the smaller semi circle from the area of the whole semi circle

508.9380099 - 226.1946711 = 282.7433388

Finally we want to round to the nearest tenth and we get that the area of the rainbow is 282.7 cm²

4 0

3 years ago

Carmen worked more than 40 hours last week and earned $352.95. her regular hourly pay rate is $7.80. After 40 hours, she is paid

DerKrebs [107]

Answer:

she worked 50.5 hours last week.

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Step-by-step explanation:

4 0

4 years ago

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Write an equation for the translation of y=|x|. <br> 7 units right

Firlakuza [10]

Answer:

g(x) = |x-7|

Step-by-step explanation:

The translation of the graph of y = |x| 7 units to the right is represented by g(x) = |x-7|.

3 0

3 years ago

Help !!!!!!!!!!!!!!!!​

Help !!!!!!!!!!!!!!!!