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Andrews [41]
3 years ago
15

Find the maximum height of the cannon ball (t)= -16t + 128t

Mathematics
1 answer:
Bond [772]3 years ago
5 0

Answer:

t= 0

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain variables.

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5(×+y+4) is equivalent to what
Novosadov [1.4K]

Answer: 5x+5y+20

Step-by-step explanation:

In this equation the variables with no coefficient represent one so x = 1x. Next multiply all numbers in parentheses by 5 to get your final expression.

7 0
3 years ago
Mae Ling earns a weekly salary of $300 plus a 6.0% commission on sales at a gift shop. How much would she make in a work week if
hram777 [196]

Answer:

546

Step-by-step explanation:

300 + (4100*.06)

300 + 246

546

7 0
3 years ago
Simplify: 3•6 - 42 ÷ 2
Romashka [77]

Answer:

-3

Step-by-step explanation:

3 x 6 - 42/2 =

18 - 42/2 =

18 - 21 =

-3

6 0
3 years ago
Read 2 more answers
Write perimeter and area of circle​
alexira [117]

Answer:

The perimeter of a circle is π × d. Here's is the diameter of the circle. Hence, the perimeter of a circle is half of that of the circle that is ½ π × d.

The area of a circle is pi times the radius squared (A = π r²). Learn how to use this formula to find the area of a circle when given the diameter.

Step-by-step explanation:

8 0
3 years ago
A random sample of 70 printers discovered that 25 of them were being used in small businesses. find the 95% limit for the popula
kvasek [131]

Answer:

The sample proportion of printers used in small business is:

\hat{p}=\frac{25}{70}=0.3571

The 95% confidence interval for the population proportion of printers that are used in small businesses is:

\hat{p} \pm z_{\frac{0.05}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n} }

Where:

z_{\frac{0.05}{2}}=1.96 is the critical value at 0.05 significance level

\therefore 0.3571 \pm 1.96 \sqrt{\frac{0.3571(1-0.3571)}{70} }

         0.3571 \pm 0.1122

         \left ( 0.3571 - 0.1122, 0.3571 + 0.1122 \right)

         \left(0.245,0.469 \right)

Therefore, the 95% confidence interval for the population proportion of printers that are used in small businesses is (0.245 , 0.469)



7 0
3 years ago
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