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Angelina_Jolie [31]
4 years ago
12

The actual mechanical advantage of a machine

Mathematics
2 answers:
RoseWind [281]4 years ago
7 0
1. D
2.B
3.C
4.B
5.C

Hope this helps
Vikentia [17]4 years ago
4 0
The answer is D just took the test.
You might be interested in
Find a1, for the given geometric series. Round to the nearest hundredth if necessary. Sn= 86,830, r= 2.2, n=4
larisa86 [58]

Answer:

4,646.30

Step-by-step explanation:

The sum of n terms of geometric sequence can be calculated using formula

S_n=\dfrac{a_1(1-r^n)}{1-r}

In your case,

S_n=86,830\\ \\r=2.2\\ \\n=4\\ \\a_1=?

Substitute into the formula:

S_4=\dfrac{a_1(1-2.2^4)}{1-2.2}\\ \\86,830=\dfrac{a_1(1-23.4256)}{-1.2}\\ \\-104,196=a_1(-22.4256)\\ \\22.4256a_1=104,196\\ \\a_1=\dfrac{104,196}{22.4256}\approx 4,646.30

5 0
4 years ago
Is my answer correct
Vlad [161]
No because its explain how much cumulative tip total on day 5 so the answer is D.400
8 0
3 years ago
A hockey goalie blocks 75% of shots at the goal. How many shots can the goalie predict she or he will block in 75 tries
inn [45]

Answer:

56

Step-by-step explanation:

75% of 75 tries = 0.75×75 = 56.25

Rounding, he can expect to block 56 shots.

7 0
3 years ago
Andy uses 3 bananas in each of 5 loaves of banana bread he is baking.Write a multiplication expression to represent the total nu
Mila [183]
3 x 5 is the multiplication expression. He would use 15 bananas in total.
5 0
3 years ago
A certain skincare company's profit in millions of dollars, P(t), can be modeled by the polynomial function P(t) = –2t3 + 8t2 +
noname [10]

The quantity of product that would result in the same profit is 1 thousand. Option A

<h3>How to determine the function</h3>

Given the polynomial function as;

P(t) = –2t³ + 8t² + 2t

Where;

  • P(t) is the company's profit = $8 million
  • t is the number of skincare profit

Let's equate the values

–2t³ + 8t² + 2t = 8

–2t³ + 8t² + 2t - 8 = 0

Factorize the expression

(-2t³ + 8t²) + ( 2t -8) = 0

- t² ( 2t - 8) + (2t -8) = 0

We take the similar factor

2t - 8 = 0

2t = 8

t = 8/2

t = 4

But we have that the company produced 4 thousand products for $8 million profit, so we have

= 4/ 4

= 1 thousand

Thus, the quantity of product that would result in the same profit is 1 thousand. Option A

Learn more about polynomial function here:

brainly.com/question/7693326

#SPJ1

4 0
2 years ago
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