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2 years ago

Which phrase is a description of 7n+11?

Mathematics

1 answer:

ivann1987 [24]2 years ago

4 0

Answer:

n=18

Step-by-step explanation:

7n+11?

n=7+11

7+11=18

n=18

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A cannon ball is launched at 6 feet per second from the top of a platform 12 feet above the ground.

AleksAgata [21]

A.) y = ut - 1/2gt^2 + 12
y = 6t - 1/2(9.8)t^2 + 12
y = 6t - 4.9t^2 + 12

b.) The y-intercept is 12

c.) The y-intercept represent the height of the ball at time t = 0

d.) At the time the ball reaches the ground, y = 0
-4.9t^2 + 6t + 12 = 0
t = 2.29 seconds
Therefore, it took the ball 2.29 seconds to reach the ground.

7 0

3 years ago

What is (5,2) and (2,8) in slope intersect form?

yaroslaw [1]

Answer:

-3,6

Step-by-step explanation:

i think this is right

6 0

3 years ago

What is the volume of a cubic crystal with one face that has an area of 9 cm²?

Ulleksa [173]

Answer:

The volume is 27 cubic cm.

Step-by-step explanation:

4 0

3 years ago

Two more than a number n equals -6.

Elenna [48]

Answer:

2+n=-6

Step-by-step explanation:

To simplify n

n=-8

8 0

2 years ago

Read 2 more answers

Omar wants to purchase a bike helmet for 22.55 and a bike for 134.45.

noname [10]

Answer:

$169.96 dollars

Step-by-step explanation:

Given the following questions:

8.25% of 22.55 and 134.45

In order to find the answer, we will have to add the initial costs of the items together, then we will calculate using the formula for percentages to find the tax rate.

$22.55+134.45=157$
$157$

<u>Calculate the percentage:
</u> $\frac{p\times c}{100}$
$\frac{8.25\times157}{100} =8.25\times157=1295.25\div100=12.9525$
$=12.9525$
$12.9525$
$2 < 5$
$=12.96$

<u>Add the sales tax:</u>
$157+12.96=169.96$
$=169.96$

Which means the two items along with an 8.25% sales tax costs "$169.96 dollars."

Hope this helps.

5 0

2 years ago