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4 years ago

Evaluate the expression for x = –3

Mathematics

1 answer:

IgorC [24]4 years ago

3 0

Kinda confused of the question

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The rectangular prism has a volume of 936 cubic inches. Write and solve an equation to find the missing dimension of the prism.

Alika [10]

Answer: Solution in photo

4 0

3 years ago

the amount of money in an account with continuously compounded interest. calculated to the nearest tenth of a year how long it t

pentagon [3]

You will need this formula:
Years = ln (Total / Principal) / rate
(where "ln" means natural logarithm)
and we'll use $100 and $200 for beginning and ending amount
Years = ln (200 / 100) / rate
Years = 0.69314718056 / .052
Years = 13.3297534723 
Rounding to the nearest tenth of a year:
Years = 13.3

Source:
http://www.1728.org/rate2.htm

6 0

3 years ago

The equation yˆ=−6.2x2+41.5x−5.6 approximates the average number of cars that pass through an intersection x hours after 3:00

Neko [114]

Answer:

Step-by-step explanation:

5: 30 pm is 2.5 hours after 3 : 00 pm

Substitute x = 2.5 into the equation

y = - 6.2(2.5)² + 41.5(2.5) - 5.6

= - 38.75 + 103.75 - 5.6

= 59.4

The average number of cars is 59

8 0

3 years ago

You are applying fertilizer to a football field. The field is 360 feet long and 160 feet wide. You use 8 pounds of fertilizer pe

Assoli18 [71]

Answer: 10 bags

Step-by-step explanation:

First we must calculate the field area. Assuming it is a rectangle then its area equals the product of its length times its width

$A =360*160\\\\A = 57600 ft^2$

You use 8 pounds of fertilizer per 1,000 square feet

So the amount of fertilizer you should use is:

$57,600 ft^2 * \frac{8\ pounds}{1,000\ ft^2} = 460.8\ pounds$

As the fertilizer comes in bags of 50 pound then you need

$460.8\ pounds * \frac{1\ bag}{50\ pounds} = 9.2\ bags$

Since you can not buy 9.2 bags then we round up to the next whole number.

Finally you need 10 bags of fertilizer

6 0

3 years ago

PLEASE HELP WILL MARK AS BRAINLIEST EASY MATH

Pachacha [2.7K]

5. The answer is D
$s \leqslant 160$
because it says no more than 160 so it's possible to be equal to 160.

6.
$x + 7 > 2 \\ x > 2 - 7 \\ x > - 5$
So the answer is A

4 0

3 years ago

Read 2 more answers