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3 years ago

What is the sum of 3 + (-4) ?

Mathematics

2 answers:

vitfil [10]3 years ago

6 0

Answer:

This answer is -1, as I said above.

andreev551 [17]3 years ago

5 0

Answer:-1

Step-by-step explanation:3-4=-1

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If 30% of John's photographs were perfect, but 210 photographs were not perfect, then how many photographs were there in all?

anyanavicka [17]

If 30% were perfect, 70% were not perfect. So we know that 70% of the total number of photographs is 210.

p(70/100)=210 multiply both sides by 100

70p=21000 divide both sides by 70

p=300

So there are 300 photographs in all.

3 0

4 years ago

What is the volume of the composite figure?

Tom [10]

Answer:

The volume of the composite figure is 140 in³

8 0

3 years ago

A composite figure is formed from a cone and a cylinder with the same base radius, and its volume can be calculated by multiplyi

olga55 [171]

The composite figure comprises of a cone balanced on top of cylinder

Step-by-step explanation:

The composite figure is formed from a cone and a cylinder with the same base radius, Let the base radius be r

Then the volume of the cone will be $V_{cone}$

Then the volume of the cylinder will be $V_{cylinder}$

$V_{cylinder} = \pi r^{2} h_{cylinder}$

The total volume of the composite figure will be V, where

$V= V_{cone} + V_{cylinder}$

$V = \frac{1}{3} \pi r^{2} h_{cone} +\pi r^{2} h_{cylinder}$

let the height of cone and cylinder be same

The volume of the composite figure will be $\frac{4}{3} \pi r$ $r^{2} h$

Hence $\frac{4}{3} = \frac{a}{b}$

Thecomposite figure comprises of a cone balanced on top of cylinder

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4 years ago

Plz helppp!!!!! Find the Arc<br> Arc RST

irinina [24]

Answer:

RST: 135°

Step-by-step explanation:

since it's an central angle, its will equal the measure of the central angle

8 0

4 years ago

) For each type of division problem, decide if the quotient is positive or

7nadin3 [17]

ANSWER:

A negative

B negative

C negative

D positive

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3 years ago