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4 years ago

7. Use formulas to find the surface area of the prism below (drawing not to scale).

Mathematics

1 answer:

guapka [62]4 years ago

8 0

Tapatap tapatap tapatap ft.hindustani bhau

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PLEASE HELP THIS IS REALLY IMPORTANT

Svet_ta [14]

Answer:

a) $x^2-x-20\\$

b) what?

c) -70

Step-by-step explanation:

If you have any questions feel free to ask in the comments - Mark

sorry for the terrible answer

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3 years ago

Need help, I will be gaveing out points for helpers

Olenka [21]

Answer:

The 3rd answer

Step-by-step explanation:the

180-30\2

....

=75

30+2*75=

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180

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3 years ago

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The function f(x)=12,419(1.4)^x represents the number of visitors to a website x years after itbwas launched. Each year, the num

jekas [21]

1.4x is the answer to this question

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3 years ago

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A supplier of heavy construction equipment has found that new customers are normally obtained through customer requests for a sa

ziro4ka [17]

Answer:

The probability that it will take fewer than six customer contacts to clear the inventory is 0.8%.

Step-by-step explanation:

We have a probability of making an individual sale of p=0.15.

We have 4 units, so the probability of clearing the inventory with n clients can be calculated as:

$P=\dbinom{n}{4}p^4q^{n-4}=\dbinom{n}{4}0.15^4\cdot 0.85^{n-4}$

As we see in the equation, n has to be equal or big than 4.

In this problem we have to calculate the probability that less than 6 clients are needed to sell the 4 units.

This probability can be calculated adding the probability from n=4 to n=6:

$P=\sum_{n=4}^6P(n)=\sum_{n=4}^6 \dbinom{n}{4}0.15^4^\cdot 0.85^{n-4}\\\\\\P=0.15^4(\dfrac{4!}{4!0!}\cdot 0.85^{4-4}+\dfrac{5!}{4!1!}\cdot0.85^{5-4}+\dfrac{6!}{4!2!}0.85^{6-4})\\\\\\P=0.15^4(1\cdot0.85^0+5\cdot0.85^1+15\cdot0.85^2)\\\\\\P=0.00051(1+4.25+10.84)\\\\\\P=0.00051\cdot16.09\\\\\\P=0.008$

5 0

3 years ago

The area of a rectangle having breadth 2.6m is 18.33 sq.m. Find the<br> length of rectangle.

ladessa [460]

Answer:

Length = 7.05m

Step-by-step explanation:

Breadth is just a fancy word for width. We know that the width is 2.6 m and the total area is 18.33 m². We also know that the formula for the area of a rectangle is l*w, length times width. Remember, we are looking for l.

Set up an equation: l*w=A

Where:

l = Length
w = Width
A = Area

Plug in the known values.

l*w=A

l * 2.6 = 18.33

Solve for l. Isolate the variable by dividing both sides of the equation by 2.6:

l = 7.05

You can easily check your work by finding l*w now that you know both values. Always remember to put the unit back into your answer! So your final answer should be l=7.05 m

4 0

3 years ago