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3 years ago

Find the surface area of the solid figure. The surface area of the figure is (use whole numbers only):

Mathematics

1 answer:

fgiga [73]3 years ago

6 0

Answer:

Hello! answer: the area is 528

Step-by-step explanation:

When finding area you should split the shapes up so forst im going to do the two sides that are the same those are just simply 10 x 12 = 120 10 x 12 = 120 So i add those up and get 240 I'll add this with the other sides later now Im going to do the front face thats a square that is 16 x 12 = 192 Now I'm just going to do the triangles that is 16 x 6 = 96 then I divide by 2 cause thats the formula for finding triangle area now I have 48 but since there are two of those triangles ill just do 48 x 2 = 96 now that I have All the faces im going to add them all up so... 240+ 192 + 96 = 528 Hope this explains well!

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8,699 rounded to the nearest ten

aleksley [76]

Ok so first You look at the number:8,699. Where's the Tens place? The tens place is easy to find by using expanded notation......8,000 + 600 + 90 + 9.
90 is the tens place you see? So in order to answer this right,You keep Every number on the right side of 90 and add it to 90 So.......90+9 = 99 .

99 is the area you going to round. In order to round you look at the one place
(the 9) and and see if its a number bigger than the number 5 which it is!
so read this.........4 or below let it go,5 or above give it a shove. So because it bigger than 5 you round it up. so.......8,6(99) rounded up would be simple.....

99 goes up so 90 (the tens place) goes to 100. BUT 8,6100 is wrong and you should now that so just do this.

99 turned to 100 so 600 (Hundreds place) + 100 (tens place rounded) = 700

Answer to this Number 8,700

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4 years ago

Give three ratios tha are equivalent to the ratio 1/4

ElenaW [278]

Here:

2 : 8
3 : 12
4 : 16

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3 years ago

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What is the answer and please help me

ladessa [460]

V=BH

The base is 25 square feet because 5*5=25. The height is x feet. The volume is 62.5 cube feet.

62.5=25*x
2.5=x

X should equal 2.5 feet.

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3 years ago

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Y/4+5/9=y/9-5/9<br><br>solve the equation is it a number or does it not have a solution

Paladinen [302]

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3 years ago

In one city, the probability that a person will pass his or her driving test on the first attempt is 0.68. Eleven people are sel

kolezko [41]

Answer:

0.0308 = 3.08% probability that among these 11 people, the number passing the test is between 2 and 4 inclusive

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they pass the test on their first attempt, or they do not. Each person is independent of any other person. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

In one city, the probability that a person will pass his or her driving test on the first attempt is 0.68.

This means that $p = 0.68$

Eleven people are selected at random from among those taking their driving test for the first time.

This means that $n = 11$

What is the probability that among these 11 people, the number passing the test is between 2 and 4 inclusive

This is

$P(2 \leq X \leq 4) = P(X = 2) + P(X = 3) + P(X = 4)$ .

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 2) = C_{11,2}.(0.68)^{2}.(0.32)^{9} = 0.0009$

$P(X = 3) = C_{11,3}.(0.68)^{3}.(0.32)^{8} = 0.0057$

$P(X = 4) = C_{11,4}.(0.68)^{4}.(0.32)^{7} = 0.0242$

$P(2 \leq X \leq 4) = P(X = 2) + P(X = 3) + P(X = 4) = 0.0009 + 0.0057 + 0.0242 = 0.0308$ .

0.0308 = 3.08% probability that among these 11 people, the number passing the test is between 2 and 4 inclusive

6 0

3 years ago