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4 years ago

Y = x Squared - 2x - 15

Mathematics

1 answer:

antoniya [11.8K]4 years ago

5 0

Answer:

To find the x-intercept, substitute in 0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y. x-intercept(s): (5,0),(−3,0)y-intercept(s): (0,−15)

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Simplify the expression

ycow [4]

Answer:

4k(2k² - 5k - 4) + 5(2k² - 5k - 4)

8k³ - 20k² - 16k + 10k² -25k - 20

8k³ - 10k² - 41k - 20

Thus its G

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3 years ago

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A school has 400 students. They all come to school by bus, and each bus carries the same number of students. How many students m

rodikova [14]

Answer:

100 students on each bus

Step-by-step explanation:

100*4 is 400 so there might be just 4

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3 years ago

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Sarah used 2.5 cups of cheese in a dish that serves 10 people. Amyn used 1.6 cups of cheese in a dish that serves 8 people.

Pavel [41]

Answer: 0.05 cup

Step-by-step explanation:

Divide 2.5 by 10 to find how much is in one of Sarah’s dish.

This gives you 0.25

Divide 1.6 by 8 to find how much is in one of Amyn's dish.

This gives you 0.2

Now minus 0.2 from 0.25.

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3 years ago

The ratio of boys to girls in a group is 3 to 1 is there are 28 more boys then girls workout how many people their are it total

worty [1.4K]

Answer:

56 total

Step-by-step explanation:

Let the number of girls = x

Let the number of boys = 3x

x 1

=== = ==========

x + 28 3

Cross multiply

3x = x + 28 Subtract x from both sides

3x - x = 28 Combine

2x = 28 Divide by 2

x = 28/2

x = 14

Girls = 14

Boys = 14 + 28 = 42

Is the ratio 3 to 1?

42/14 = 3/1 Yes it does

Total number

14 + 42 = 56

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3 years ago

Is 1.76 a rational number ?

inna [77]

Yes....a rational number can be turned into a fraction
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3 years ago