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3 years ago

That is weird but here it is again

Mathematics

2 answers:

Mars2501 [29]3 years ago

5 0

Answer:

The answer is 3.6 feet per year

borishaifa [10]3 years ago

3 0

Answer: 3.6 feet per year

Pick any column and divide the feet over the years

eg: 7.2/2 = 3.6 (column 1)

You can think of it as the ratio

7.2 feet: 2 years

and then divide both sides by 2 to get "1 year" on the right side

7.2 feet: 2 years

7.2/2 feet: 2/2 years

3.6 feet: 1 year

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The Quadratic Formula, x equals negative b plus or minus the square root of b squared minus 4 times a times c, all over 2 times

DedPeter [7]

Answer:

The correct option is 2 .

Therefore ,the missing denominator of the solution. 4 plus or minus the square root of 2, all over is <u> 2 . </u>

$x=\dfrac{4\pm\sqrt{2}}{2}$

Step-by-step explanation:

For a Quadratic Equation ax² + bx + c = 0

By Formula Method we get

$x=\dfrac{-b\pm\sqrt{b^{2}-4ac}}{2a}$

So we have Quadratic Equation is 2x² - 8x + 7 = 0

On Comparing we get

$a=2\\b=-8\\c=7$

Substituting a , b, c values we get

$x=\dfrac{-(-8)\pm\sqrt{(-8)^{2}-4(2)(7)}}{2(2)}\\\\x=\dfrac{8\pm\sqrt{64-56}}{4}\\\\x=\dfrac{8\pm\sqrt{8}}{4}\\\\x=\dfrac{8\pm2\sqrt{2}}{4}\\\\x=2(\dfrac{4\pm\sqrt{2}}{4})\\\\x=\dfrac{4\pm\sqrt{2}}{2}$

Therefore ,the missing denominator of the solution. 4 plus or minus the square root of 2, all over is <u> 2 . </u>

7 0

3 years ago

Pam buys a shirt that costs $11.99 , pants that cost $23.98 , and a belt that costs $9.95 she has a coupon for 20% off the entir

ludmilkaskok [199]

Pam will pay $29.60 on the entire purchase

7 0

3 years ago

Read 2 more answers

EXPERT HELP I'LL GIVE BRAINLIEST:

ICE Princess25 [194]

Answer:

990, C

Step-by-step explanation:

The formula for the surface area of the bottom cushion is

A = 2wl + 2lh + 2hw (w is width, l is length, h is height)

w = 18, l = 21, h = 3

A = 2(18)(21) + 2(21)(3) + 2(3)(18)

A = 2(378) + 2(63) + 2(54)

A = 756 + 126 + 108

A = 990 (C)

5 0

3 years ago

The school took in &875 at the bake sale fundraiser .60% of the money came from cupcake sales how much money did the school

Alekssandra [29.7K]

Whatever% of anything is just (whatever/100) * anything.

so they had a total in sales of $875, and 60% of that is from cupcakes.

how much is 60% of 875? well is just (60/100) * 875.

6 0

4 years ago

A nurse infuses a dose in 50 minutes. She needs to infuse the dose at a 20% faster rate. How much time does she need ?

Katen [24]

Answer: The nurse needs 40 minutes to infuse the dose at a 20% faster rate.

Step-by-step explanation:

In order to calculate how much time the nurse needs to infuse the dose, you have to calculate how much is the 20%

The 20% of 50 minutes is obtained multiplying 50 by the factor that represents the 20% which is $\frac{20}{100}$

$(\frac{20}{100})(50)$ = 10 minutes

Now, the time she needs to infuse the dose at a faster rate is obtained as follows:

50 minutes - 10 minutes = 40 minutes.

Notice that you have to subtract the 20% of 50 minutes to the original time to obtain a 20% faster rate.

8 0

3 years ago