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Mathematics

1 answer:

viktelen [127]3 years ago

5 0

Answer:

I'd say A or D but I have a feeling it's A

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(-30(-7))-(210(-3))=

Vlad [161]

Answer:

840

Step-by-step explanation:

(−30)(−7) − (210)(−3)

=210 − (210)(−3)

=210 − (−630)

=840

Hope this helps!

brainliest?

3 0

2 years ago

Read 2 more answers

Is cos 314 positive, negative or zero

Dafna1 [17]

Cos (314) = .694 is positive

7 0

3 years ago

What is the quotient (x^3-3x^2+3x-2) divided by (x^2-x+1)

Zielflug [23.3K]

If you do the long division you'll see that it is x - 2.

4 0

3 years ago

A recipe for a loaf of bread calls for 2/3 of a cup of flour. If Milo used 12 cups of flour, how many loafs of bread did he prep

Aloiza [94]

The answer is:

1/2 cups of flour can make 1 loaf.

1 cup would make = 1 /(1/2) = 2 loaves.

12 cups of flour would then make = 12*2 = 24

= 24 loaves.

[Please Mark as Brainliest]

7 0

3 years ago

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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.

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

5 0

3 years ago