2 years ago

A money bank has twice as many nickels as dimes. There is exactly $2.00 in the bank. How many nickels are there?

Mathematics

1 answer:

Makovka662 [10]2 years ago

7 0

There is 16 nickels in 2 dollars

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All my digits are different.The sum of my digits is 24.Rounded to the nearest 100,I am 1000,but rounded to the nearest 10.I am 9

IRISSAK [1]

The answer is 987

9 + 8 +7 = 24

nearest 100 is 1000
nearest 10 is 90
so 987

8 0

2 years ago

Simplify the quadratic term by squaring the (x+1) term.

tensa zangetsu [6.8K]

Answer:

y = -2x^2 -4x +1

Step-by-step explanation:

y-3 = -2 (x+1)^2

Foil (x+1)^2

(x+1)(x+1) = x^2 +x+x+1 = x^2 +2x+1

Substitute this back in

y-3 = -2(x^2 +2x+1)

Distribute

y-3 = -2x^2 -4x -2

Add 3 to each side

y-3+3 = -2x^2 -4x -2+3

y = -2x^2 -4x +1

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2 years ago

4. As shown in Figure 5.111 to the right if the

Juli2301 [7.4K]

Answer:

Area of the shaded part is 3.14 square unit.

Step-by-step explanation:

Area of the shaded part = Area of large semicircle - (Area of two small semi circles)

Area of large semicircle with center O = $\frac{1}{2}(\pi r^2)$

= $\frac{1}{2}\pi (2)^{2}$

= 2π

Area of semicircle with center O' = $\frac{1}{2}\pi (1)^2$

= $\frac{\pi }{2}$

Area of semicircle with center O" = $\frac{\pi }{2}$

Now substitute these values in the formula,

Area of shaded part = $2\pi - (\frac{\pi }{2}+\frac{\pi }{2})$

= $\pi$

= 3.14 square unit

Area of the shaded part is 3.14 square unit.

7 0

2 years ago

What steps to get the answer for -4x+7=11

tiny-mole [99]

Answer:

-4x=4

Step-by-step explanation:

-4x+7=11 subtract 7 add to the 11 answer-4x=4

5 0

2 years ago

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In a survey of more than 6000 people are 95% of the respondents claimed to prefer Penelope‘s puffy popcorn over any other brand

raketka [301]

Answer:

B. People who were promised free samples of Penelope‘s puffy popcorn for completing the survey

Step-by-step explanation:

This would show likely bias in the result of the survey

5 0

1 year ago