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4 years ago

13

Solution the the system of equations 2x+4y=-8 and -2x+3y=29

1 answer:

Zina [86]4 years ago

5 0

The answer to this is y=3 and x=-10.

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Liz was on vacation when her wallet was stolen. By the time she reported her 3 credit cards missing, the criminal had charged ov

tamaranim1 [39]

Liz would have to pay $45,000. 3 x 15,000 = 45,000. Hope this helps

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3 years ago

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Which is the better deal? Question 2 options: 1 lb of apples for $2.50 3 lbs of apples for $4.25 5 lbs of apples for $7.20 10 lb

dem82 [27]

3 lbs of apples for 4.25

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4 years ago

Charlotte has 85 stickers. Her brother has x times more stickers than her. Write

sergiy2304 [10]

Step-by-step explanation:

Her brother has 85 * x stickers.

8 0

3 years ago

I need help please.

Greeley [361]

Answer is C).

One way to find the answer is to multiply the $54 by .30 (which is 30%converted to a decimal). Doing this will give you what 30% of $54 is.
This gives you 16.2
Since the question is asking what 30% off the price is, subtract the 16.2 from the $54.

5 0

3 years ago

Calculate the average rate of change of f(x) = x2 - 1 x - 4 for 2 ≤ x ≤ 6.

hoa [83]

Answer:

Hence, the average rate of change is:

$\dfrac{97}{12}$

Step-by-step explanation:

We are asked to calculate the average value of the function:

$f(x)=x^2-\dfrac{1}{x}-4$ in 2 ≤ x ≤ 6

The average rate of change of the function f(x) in the interval 2 ≤ x ≤ 6 is given as:

$\dfrac{f(6)-f(2)}{6-2}\\\\=\dfrac{f(6)-f(2)}{4}$

Now,

$f(6)=36-\dfrac{1}{6}-4\\\\f(6)=32-\dfrac{1}{6}\\\\f(6)=\dfrac{191}{6}$

$f(2)=4-\dfrac{1}{2}-4\\\\\\f(2)=-\dfrac{1}{2}$

Hence, the average rate of change is:

$\dfrac{\dfrac{191}{6}-\dfrac{-1}{2}}{4}\\\\=\dfrac{194}{6\times 4}\\\\=\dfrac{97}{12}$

Hence, the average rate of change is:

$\dfrac{97}{12}$

8 0

3 years ago

Read 2 more answers