All categories

3 years ago

Help I’m not great and math

Mathematics

2 answers:

Rudik [331]3 years ago

8 0

I would say the answer is 60 because base * height

Vesnalui [34]3 years ago

5 0

Answer: C. 78 pi

Explanation:
The equation for surface area of a cylinder is; a=2pirh+2pir^2
So a=2 x pi x 3 x 10 + 2 x pi x 3^2
Then follow order of operations, so start with exponent
So a= 2 x pi x 3 x 10 + 2 x pi x 9
Then multiplication, but leave pi since out answer will be in pi

So a = 2 x pi x 30 + 2 x pi x 9
Next multiply 2 x 30 and 2x9
a= pi x 60 + 18
Add
a= 78 pi

If you have any questions let me know!

You might be interested in

If one pound is the same weight as 16 ounces, how many ounces equal 3.5 pounds? (only input whole numbers.)

astra-53 [7]

Answer: well 56 is the answer

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A farmer has a basket of peaches. He gives ⅓ of the peaches to one person, ¼ to another, ⅕ to another, ⅛ to another, and then gi

inessss [21]

Answer:

$\frac{1429}{120}$ or $11\frac{109}{120}$

Step-by-step explanation:

Given:

A farmer has a basket of peaches. He gives ⅓ of the peaches to one person, ¼ to another, ⅕ to another, ⅛ to another, and then gives 7 peaches to a 5th person.

Remaining peaches = 4

We need to find the original number of peaches in the basket.

The farmer gives the total number of peaches = $\frac{1}{3}+\frac{1}{4}+\frac{1}{5}+\frac{1}{8}+7$

Let x be the former gives the total number of peaches

We multiply and divide by 120 in right side of the above equation because of 120 is divided by all given denominator and then simplify.

$x = \frac{120}{120}(\frac{1}{3}+\frac{1}{4}+\frac{1}{5}+\frac{1}{8}+7)$

$x = \frac{1}{120}(\frac{120}{3}+\frac{120}{4}+\frac{120}{5}+\frac{120}{8}+7\times 120)$

$x = \frac{1}{120}(40+30+24+15+840)$

$x = \frac{1}{120}(949)$

$x = \frac{949}{120}$

We add the remaining peaches by given peaches for the original number of peaches in the basket.

Original number of peaches = $\frac{949}{120}+4$

Original number of peaches = $\frac{949+4\times 120}{120}$

Original number of peaches = $\frac{949+480}{120}$

Original number of peaches = $\frac{1429}{120}$

Original number of peaches = $11\frac{109}{120}$

Therefore the original number of peaches in the basket is $\frac{1429}{120}$ or $11\frac{109}{120}$

5 0

3 years ago

One bag of Roland fertilizer covers 2346 square feet of lawn. How many total bags of fertilizer must be purchased to cover a law

Ivenika [448]

If I did my math correct it should be 47. If you take 284x386 you get 109,624 (that should be the area in square feet) then take 109,624 and divide it into 2346 and you get 46.7280477408. In order to cover it you should round up to 47 bags.

3 0

4 years ago

f(x) is a polynomial of degree 4 with real coefficients; two of its zeros are -3 (with a multiplicity of one) and 4 - i . How ma

Aleksandr-060686 [28]

Answer:

Step-by-step explanation:

complex zeros always occur in pairs.

so zeros are -3,4-i,4+i

so fourth zero also intersects x-axis.

Hence there are two x-intercepts only.

8 0

3 years ago

What would be your first step in solving x + 12 < 40?

anygoal [31]

Subtract 12 from the side of x and moving it to 40, creating x<28

4 0

3 years ago

Read 2 more answers