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siniylev [52]
3 years ago
13

What does 4 (2x +5) equal to?!!

Mathematics
1 answer:
____ [38]3 years ago
8 0
8x+20 by multiplying 4 to 2x and 5 :)) hope this help!!!
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#11 with explanation and answer <br> Tysm
kramer
12 plus 18 over 3 so it is 12+6 which is 18 So 18 is your final answer
5 0
3 years ago
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Given sin x=0.5 what is cos x
irina [24]
sinx=0,5=\frac{1}{2}

sin^2x+cos^2x=1
(\frac{1}{2})^2+cos^2x=1
\frac{1}{4}+cos^2x=1
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4 years ago
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The sum of three numbers is 84, the second number is 2 times the 3rd , the first number is 8 more than the 3rd. What are the num
hjlf

Answer:

a = 27

b = 38

c = 19

Step-by-step explanation:

a + b + c = 84

b = 2c

a = 8+c

8+c +2c+c = 84

4c + 8 = 84

4c = 76

c = 19

b = 2(19) = 38

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5 0
3 years ago
The mean value of 500 homes in a county is $225,000 and the standard deviation is $25,000. approximately how many of the homes i
dusya [7]

240 homes in the county are between $175,000 and $225,000.

The image attached is associated with this question and m in it refers to the mean value which is $225000 here and d refers to the standard deviation which is $25000 here.

Now since m= $225000

and $175000= $225000-$50000= $225000-(2* $25000)= m-2d

Thus, as per the image area covered between m and m-2d=  $225000

and $175000 is (34%+14%)of 500 homes= 68% of 500= 240 homes, is the answer.

A random variable X is said to follow a normal distribution if its parameters are mean and standard deviation. Every other distribution can be reduced to a normal distribution.

Learn to know more about normal distributions on brainly.com/question/4079902

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3 0
2 years ago
Describe the location from the origin of each point in problem 5
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Elaborate, where’s the picture of the problem?
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