2 years ago

Select the correct answer.

Mathematics

1 answer:

Leno4ka [110]2 years ago

6 0

Answer:it’s C

Step-by-step explanation:

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7x ^4 minus 5x ^4 =

lapo4ka [179]

Answer:

2x^{4}

Step-by-step explanation:

You would subtract 7 and 5 and you would leave the exponent so it would be 2x^{4}

8 0

2 years ago

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Any thoughts im really confused on it

wariber [46]

In step two he flipped the fraction back to how it was originally but he was supposed to leave it improper in order to multiply

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2 years ago

An ice cream shop sells cones at the volume of 94.2 cubic meters they want to double the volume of the cones without changing th

marin [14]

The volume of a cone is $V=\pi r^2\frac{h}3$ where r = radius and h = height. If the cone has a volume of 94.2 cm³ (I assume you didn't mean m³ because that would be ridiculously huge) and a height of 10 cm, we can plug these values into the formula to find the radius. Don't do any rounding.

$94.2 = \pi r^2\frac{10}3 \\ 282.6 = \pi r^2 *10 \\ 28.26 = \pi r^2 \\ 8.99543738355 = r^2 \\ 2.99923946752=r$

Now we know that's going to be the radius of our <em>new </em>cone as well since we're keeping the diameter the same. The volume is going to be double 94.2 which is 188.4. Let's solve for the height.

$188.4 = \pi (2.99923946752)^2\frac{h}3 \\ 188.4 = \pi(8.99543738355)\frac{h}3 \\ 188.4 = 28.26\frac{h}3 \\ 565.2 = 28.26h \\\\ \boxed{h = 20, r\approx 3}$

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3 years ago

The fly population on an island is declining t a rate of 1.7% per year. The population was 4600 in the year 2016. Which answer i

Natasha_Volkova [10]

4521.8 maybe

i'm not positive

5 0

2 years ago

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X - y³ <br> x= -7 and y=3

sergey [27]

The answer is -34 cause if x is -7 and y is 3 then you know you switch em out and do the thing and get the answer.

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3 years ago