Given a mean of 21 and a standard deviation of 1.2, what is the z-score of 21?
Answers
Answer: 0
Step-by-step explanation:
Related Questions
Find the value of this expression if x = 9. x^2+7/x+2
This is really easy promise
For a certain candy, 15% of the pieces are yellow, 5% are red, 20% are blue, 20% are green, and the rest are brown. a) if you pick a piece at random, what is the probability that it is brown? it is yellow or blue? it is not green? it is striped?
Mr Thompson wants to cut a 5-ft rope into a 1/4-ft sections how many 1/4 sections will he have
5x - 7y=40
O (1.-5)
O (1,5)
0 (-1,-5)
0 (-1,5)
Answers
Answer:
x=1 ,y=-5
Step-by-step explanation:
3x + 10y = 47
5x - 7y = 40
____________
21x + 70y = 329. equ 1
50x - 70y = 400. equ 2
subtract equ 1 from 2
=71x = 71
divide both sides by the 71
71/71 = 71/71
x = 1
_________
to find y
substitute x into either equ 1 or equ 2
am using equ 2
5x - 7y = 40
5(1) - 7y = 40
5 - 7y = 40
7y = 5 - 40
7y = -35
divide both sides by the coffecient of y
7y/7 = -35/7
y = - 5
Answers
The given triangle is a righttriangle.
Option E is the correct answer.
What is a triangle?
A triangle is a 2-D figure with three sides and three angles.
The sum of the angles is 180 degrees.
We can have an obtuse triangle, an acute triangle, or a right triangle.
We have,
The sum of the angles must be 180.
So,
45 + 45 + 90 = 180
This is a condition for the right triangle.
Thus,
The given triangle is a righttriangle.
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D and E
the triangle is right as it has a right angle as one of the 3 angles
the triangle is isosceles as it has 2 equal sides , indicated by the score on the equal sides and 2 equal base angles of 45°
answer in scientific notation
Answers
= 96.2x10^6
Explanation:
To make the calculations easier, factor the expression:
= (9.87x10-2.5)x10^6
= 96.2x10^6
Final answer:
To subtract numbers in scientific notation, both terms must be expressed in the same form. Convert 9.87 x 10^7 to 98.7 x 10^6, subtract 2.5 x 10^6 to get 96.2 x 10^6, and then convert this back to 9.62 x 10^7.
Explanation:
To solve the given problem 9.87 x 10^7 - 2.5 x 10^6, we need to make sure that both terms are in the same form of scientific notation. Here, the base (10) and the exponent (7 and 6) are already in the form of scientific notation. The next step is to perform the subtraction.
Because the two terms are not in the same order of magnitude, we cannot subtract directly. First convert them into the same form: 9.87 x 10^7 is the same as 98.7 x 10^6. Now, we can perform the subtraction: 98.7 x 10^6 - 2.5 x 10^6 = 96.2 x 10^6.
However, the typical form of scientific notation has just one digit before the decimal point, thus convert 96.2 x 10^6 back to 9.62 x 10^7.
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Answers
It will take the construction company 48 hours to remove 36 tons of dirt from the site.The construction company can remove \( \frac{3}{4} \) tons of dirt from the site each hour.
To find out how long it will take them to remove 36 tons of dirt, we can set up a proportion
Given:Amount of dirt removed in one hour =
Total amount of dirt to be removed = 36 tons
Let t represent the time in hours it will take to remove 36 tons of dirt. Plugging in the values:
Solving for hours
So, it will take the construction company 48 hours to remove 36 tons of dirt from the site.
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Answer:
48hours
Step-by-step explanation:
36÷(3/4)
36*(4/3)
144/3
48
6 in, 10 in, 18 in
10 in, 12 in, 15 in
10 in, 15 in, 6 in
10 in, 18 in, 12 in
Answers
In short, Your Answer would be Option A
Hope this helps!
The sides need to be in between (10-6) and (10+6) or between 4 and 16. But the third side here is 18, so that cannot qualify as a side.
Hope this helps.
she would pay $2,450 down and $175 each month. At another dealer, she would pay $3,050 down and
$150 each month. After how many months would the total amount paid be the same for both dealers?
What would that amount be?
After months Kenya will have paid $ for the bike at elther dealer. PLS HELP ASAP
Answers
For the first, it would take 6 months to reach $3,500. For the second dealer, it would take 3 months to reach $3,500.
Explanation:
I hope this helps!