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Nesterboy [21]
3 years ago
14

Anyone know how to do this?

Mathematics
1 answer:
sergiy2304 [10]3 years ago
4 0

Answer:

11

Step-by-step explanation:

We need 60 dollars, we have 16

60-16 = 44

We need to earn 44 more dollars

At 4 dollars a pound

The money earned = lbs * dollars per pound

44 = lbs *4

Divide each side by 4

44/4 = lbs

11 = lbs

We must sell 11 more lbs

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Show all work for full credit. Given: f (x) = -2x + 1, find f (1) x Clear h Undo​
xenn [34]

Answer:

I hope this helps

Step-by-step explanation:

five percent

4 0
3 years ago
I need help with 4 and 5
krok68 [10]
4)
area of figure = bh = 8x10 = 80
same as a trapezoid have base 6 and 14 and height 8
because A of trapezoid = 1/2(6+14)*8 = 80
so answer is C
a trapezoid with bases of 6 mm and 14 mm and a height of 8 mm

5)
area of original figure A = bh = 8 x 10 = 80
if double h = 16 and b = 20 then A = 16 x 20 = 320
the area is quadrupled.

answer is C.
The area is quadrupled
3 0
3 years ago
The equation of the line through (3,-4) with slope 2/3 is?
alexira [117]
E maybe not certain that it is correct, hope it helps even tho i might be wrong
6 0
3 years ago
An ammunition producer claims his best product has an average lifespan of exactly 18 years. A skeptical product evaluator asks f
DochEvi [55]

Answer:

The 90% confidence interval for the true mean lifespan of this product is between 13.1 and 16.9 years.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 50 - 1 = 49

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 49 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 1.6766

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.6766\frac{8}{\sqrt{50}} = 1.9

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 15 - 1.9 = 13.1 years

The upper end of the interval is the sample mean added to M. So it is 15 + 1.9 = 16.9 years

The 90% confidence interval for the true mean lifespan of this product is between 13.1 and 16.9 years.

8 0
2 years ago
Hello.
melisa1 [442]

Answer:

\large{\boxed{\sf 2y^2\sqrt{2y}}}

Step-by-step explanation:

Here the given expression to us is ;

\sf\qquad\longrightarrow \dfrac{\sqrt{64xy^5}}{\sqrt{8x}}

Recall that ,

\sf\qquad\longrightarrow \dfrac{\sqrt{x}}{\sqrt{y}}=\sqrt{\dfrac{x}{y}}

On using this , we have ;

\sf\qquad\longrightarrow \sqrt{\dfrac{\cancel{64}\cancel{x}y^5}{\cancel{8x}}}

Simplify ,

\sf\qquad\longrightarrow \sqrt{ 8 y^5}

The prime factorisation of 8 is 2³ . So ;

\sf\qquad\longrightarrow \sqrt{ (2^3)(y^5)} =\sqrt{(2^2)(2)(y^2)(y^2)(y)}

Simplify the square root ,

\sf\qquad\longrightarrow \pink{ 2y^2\sqrt{2y}}

<u>H</u><u>e</u><u>n</u><u>c</u><u>e</u><u> </u><u>t</u><u>h</u><u>e</u><u> </u><u>r</u><u>e</u><u>q</u><u>u</u><u>i</u><u>r</u><u>e</u><u>d</u><u> </u><u>a</u><u>n</u><u>s</u><u>w</u><u>e</u><u>r</u><u> </u><u>i</u><u>s</u><u> </u><u>2</u><u>y</u><u>²</u><u>√</u><u>{</u><u>2</u><u>y</u><u>}</u><u> </u><u>.</u>

6 0
2 years ago
Read 2 more answers
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