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Readme [11.4K]
3 years ago
8

A student answers 90​% of the questions on a math exam correctly. If he he answers 18 questions​ correctly, how many questions a

re on the​ exam?
Mathematics
1 answer:
Bezzdna [24]3 years ago
4 0
20 questions are on the exam (total)
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true of false the first distribution shown below has a smaller standard deviation than does the second distribution. 11,12,13,14
ASHA 777 [7]

false becasue 11,12,13,14,15,16,17,18,19,20,21, and 22 is bigger and 111,112,113,114,115,116,117,118,119,120,121, and 122 is smaller.

3 0
3 years ago
Read 2 more answers
What is the equation of the graphed line in point slope form ?
mezya [45]

y-y1 over x-x1 its almost the same as y=mx+b

6 0
3 years ago
Please solve these soon I have to turn thin in tomorrow !!!!!!!!
Gnoma [55]

Answer:

a) so if you're looking for a then you substitute the a in the problem so the real question would be answered by simply doing this. 3 times (do this first) 6 times 3. so it would end up looking like this if you did it in your head. 6x3=18 then 18x3= 54 so the answer for ten after you did all the math would equal out to be 54.

d) so you're going to substitue the d again, for what it tells you d equals. in this case, d= a negative 2 so, 5 x do this first -2 x 4 = so if you did this in your head you would end up with -2 x 4 = -8 because anything times a negative is turned into a negative. so that is why the answer is -8 for the first part. then you multiply that answer by 5 because we all like the 5 dollar foot longs. so carry that into an answer of - 40. because we all know we want to be younger once we reach 40.

r) 5times -3 equals -15 times 2 would be... ding ding ding 30 because a negative times a negative is a positive. think of negatives this way. when you frown it's your smile upside down. ok so a frown is a negative, if you multiply a negative to a negative it's like turning your frown upside down. so you end up with a positive! ok?! so there. the secrets of life and math.

call me for the rest of the answers... this is too much to write down.

Step-by-step explanation:


4 0
3 years ago
8/2(2+2)=<br><br> A. 16<br> B. 1<br> C. 0<br> D. 10
s2008m [1.1K]

The answer to this problem is 16.

To solve we must follow the order of operations.

8/2 is 4.

2+2 is 4.

So, now we multiply 4(4) and will get 16 as the answer

So, 16 is the answer.

4 0
3 years ago
The sum of three consecutive intergers is 36.if the first integer is y,find the value of y.
wariber [46]
Hi,
Since they are consecutive, the equation will be:
y + (y + 1) + ( y + 2)=36
y + y + y +1 +2 = 36
3y + 3 = 36
3y = 36-3
3y = 33
y = 33/3
y=11
The three consecutive integers are 11, 12(11+1) and 13(11+2).
Hope this helps you.
6 0
3 years ago
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