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podryga [215]
3 years ago
7

Help!!!!! I'm timed!!!!! ​

Mathematics
1 answer:
djverab [1.8K]3 years ago
5 0

Answer:

Option C, 28

Step-by-step explanation:

2\sqrt{98} * 2

2\sqrt{7^2*2}  *\sqrt{2}

14\sqrt{2} * \sqrt{2}

14*2

28

Answer:  Option C, 28

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Which statement about the graphs of h(x)=−2x+4 and k(x)=4x−4 is correct?
gayaneshka [121]

Answer:

  A:  The x-intercept of k(x) is half the x-intercept of h(x)

Step-by-step explanation:

Answer choices B, C, and D are concerned with slopes and y-intercepts. The coefficients of x in the functions are different and are related by a factor of -2, so the lines are not parallel, and one slope is not twice the other. The y-intercepts (constants) in each function are different, so they graphs do not cross the y-axis at the same place.

Hence answer choices B, C, and D can be eliminated.

The x-intercepts are found by setting y=0 and solving for x:

  h(x) = 0 = -2x +4   ⇒   x = 4/2 = 2

  k(x) = 0 = 4x -4   ⇒   x = 4/4 = 1

The x-intercept of k(x) is half that of h(x). . . . . . . matches choice A

7 0
3 years ago
2900 dollars is placed in an account with an annual interest rate of 9% Wirte an equation that calculates how many dollars will
valentinak56 [21]

Answer:

The amount that will be in the account will be $(2900 +261x)

Step-by-step explanation:

We know that the amount of money that will be in the account will be a sum of the initial principal ($2900) and the interest that is accrued after x years.

Since we already know the principal, we will have to calculate the interest that is accrued after x years.

we can use the formula:

Interest = (principal X rate X time)/ 100

Interest = (2900 \times 9 \times x)/100=261x

Therefore the amount that will be in the account will be $(2900 +261x)

6 0
3 years ago
Determine if each pair or ratio or rate is equivalent. 16 out of 28 and 240 of 560
Keith_Richards [23]

Those ratios are not equivalent because 240 divided by 16 is 15 and 560 divided by 28 is 20.

5 0
3 years ago
Jaxon is creating a mosaic design on a rectangular
olasank [31]

Answer:

hard question

Step-by-step explanation:

3 0
3 years ago
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Find the complete factorization of the expression. 48x + 56xy
meriva
<span>8x(6 + 7y)  this is your answer hope it works!</span>
7 0
3 years ago
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