3 years ago

I need help please!!

Mathematics

1 answer:

Bezzdna [24]3 years ago

7 0

Plot a , 1 present 2 not plot be,1 not, 3 present

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Y=-x^2-x-3 find the X intercept for The parabola define by this equation

KengaRu [80]

To find the X intercept make y =0. Then factor out a negative on the side with the equation for each of the terms, so it becomes
0=-(x^2+x+3)
0=(x^2+X+3)
0-3=(x^2+X)
-3=x(X+1)
-3=X, X intercept -3,0
-3=(X+1)
-4=X, X intercept -4,0.
These are possible X intercepts you can check by using quadratic formula as well.

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3 years ago

If your car gets 27.6 mi/gal, how many gallons of gasoline would you use if you drove 552.4 miles

valina [46]

The mileage is 27.6 mi/gal
Miles driven = 552.4 mi

Calculate gallons used.
$gallons = \frac{552.4 \, mi}{27.6 \, mi/gal} = 20.015 \, gal$

Answer: 20.015 gallons (approximately 20 gallons)

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3 years ago

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I just need a little help

Anvisha [2.4K]

Answer:

its the second answer!

Step-by-step explanation:

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3 years ago

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How do I find the median for 77,82,87,85,32,78?

alisha [4.7K]

Answer:

Step-by-step explanation:

The median is the middle value of the data arranged in ascending order. If there is no exact middle then the median is the average of the 2 values either side of the middle

Arrange the data in ascending order ( smallest to largest )

32, 77, 78, 82, 85, 87

There is no value exactly in the middle, use the average

median = $\frac{78+82}{2}$ = $\frac{160}{2}$ = 80

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2 years ago

Jefferson works part-time and earns $1,520 in four weeks how much does he earn each week

EleoNora [17]

Answer: $380 per week

Step-by-step explanation:

Assuming that Jefferson works the same amount each week, you need to divide the total that he earns by four weeks in order to determine how much he made each week.

$1,520 divided by 4 equals $380 per week.

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2 years ago