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3 years ago

I NEED HELP ON NUMBER 2 pleaseeee helpppppp

Mathematics

2 answers:

Bond [772]3 years ago

8 0

Start on y intercept which is 8 then go rise over run from the y intercept; so 1 unit down and 2 units to the right which gives you a slope of -1/2.

exis [7]3 years ago

4 0

Answer:

Step-by-step explanation:

The slope is -2/4. Don't forget the x!

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2. The ratio of boys to girls in the school

andrew11 [14]

Since the ratio is 3:4, and 12/4 is 3 than you do 3x3 and get 9 so the answer is 9:12 or 9 boys and 12 girls. To check your answer, you can do 3/4 (for 3:4) and that is 0.75. If you do that with 9:12 you also get 0.75.

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3 years ago

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Which is a factor of 6x2 + x − 7? x + 1 2x + 1 6x + 7 3x + 7

katrin [286]

6x2 + x - 7

= (6x + 7)(x - 1)

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2 years ago

Represent √11.9 on the number line

ikadub [295]

The square root would be 3.4 if rounded to the tenths place

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2 years ago

A parallelogram has a length of 15cm and a height of 7.5cm . Calculate it’s area (step by step)

poizon [28]

Answer:

Area of parallelogram is equal to $112.5cm^2$

Step-by-step explanation:

It is given length pf parallelogram which is equal to base of parallelogram is b=15 cm

Height of parallelogram h = 7.5 cm

We have to find the area of the parallelogram.

Area of parallelogram is equal to multiplication of base and height.

Therefore area of parallelogram is,

$A=bh$ , here b is base and h is height.

So $A=15\times 7.5=112.5cm^2$

Therefore area of parallelogram is equal to $112.5cm^2$

3 0

3 years ago

The lateral area of a right cylinder which has a base diameter of 12 cm and a height of 8 cm is?

garik1379 [7]

Answer:

$A = 301.59\ cm^2$ or $A=96\pi\ cm^2$

Step-by-step explanation:

The lateral area of a cylinder is calculated by the following formula

$A = 2\pi r * h.$

Where r is the radius of the right cylinder and h is the height

In this case we know that the diameter d of the cylinder is

$d=2r\\\\r=\frac{d}{2}\\\\r=\frac{12}{2}\\\\r=6\ cm$

$h=8\ cm$

Therefore the lateral area is:

$A = 2\pi*6 * 8.$

$A = 96\pi$

$A = 301.59\ cm^2$

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3 years ago

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