Answer:
Hi There,
Your answer is -926.318
Scores on the ACT exam have a N(μ = 18,σ = 6) distribution, while scores on the SAT
exam have a N(μ = 500,σ = 100) distribution. Suppose Xiaoyu got a 27 on the ACT
exam, while Emily got a 720 on the SAT exam. Who has the higher relative score? Why?
Answer:
Emily has a higher relative score since her z-score is higher. This would mean she scored further above the mean than Xiaoyu.
Step-by-step explanation:
Find the z-scores by subtracting the score they got by the mean and then dividing by the standard deivation of their respective exams.
Xiaoyu:
z = [tex]\frac{27 - 18}{6}[/tex] = 1.5
Emily:
z = [tex]\frac{720 - 500}{100}[/tex] = 2.2
______
Emily has a higher relative score since her z-score is higher. This would mean she scored further above the mean than Xiaoyu.
a temperature recorded in antarctica was -119. the temperature recorded in the Sahara desert was 128. How many degrees warmer is 128 than -119
Answer:
247 degree celcius
Step-by-step explanation:
Here,
Temp diff=Sahara-antarctica
=128-(-119)
=128+119
=247 degree Celcius
Drop a Thanks and mark me as the brainliest:)!
Form a polynomial whose real zeros and degree are given.
Zeros: -1, 0, 4;
degree: 3
Answer:
f(x)=x(x-3) x (x+4) x (x-9
Step-by-step explanation:
your function in factored form
The polynomial whose real zeros and degree are given is f(x) = x³ - 3x² - 4x
How to form the polynomial?The given parameters are:
Zeros: -1, 0 and 4Degree = 3Rewrite the zeros as:
x = -1, x = 0 and x = 4
Set the zeros to 0
x + 1 = 0, x = 0 and x - 4 = 0
Multiply the zeros
(x + 1) * x * (x - 4) = 0 * 0 * 0
Multiply the factors
(x² + x) * (x - 4) = 0
Multiply the factors
x³ - 4x² + x² - 4x = 0
Evaluate the like terms
x³ - 3x² - 4x = 0
Express as a polynomial function
f(x) = x³ - 3x² - 4x
Hence, the polynomial whose real zeros and degree are given is f(x) = x³ - 3x² - 4x
Read more about polynomials at:
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#SPJ6
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Answer:
thanks for the points........
Answer:
wt f ok?
Step-by-step explanation:
is the answer(s) E, D, C, B, or A?
Answer:
A,C,E
You can see that the temperature and heat energy is changing at those points than just sitting there like B and D
Can someone answer my math?
Answer:
wlang mag sasagot yn HAHAH dapat para sagotan ni lolo 50pts ilagay mo HAHA
For the pair of similar triangles, find the value of x.
2x8
x+8
24
The value of x is a
(Simplify your answer. Use a comma to separate answers as needed.)
Answer: x = 22
Step-by-step explanation:
Compare the 2 triangles
[tex]\frac{2x-8}{24} = \frac{45}{x+8}[/tex]
Cross multiply
(2x-8) (x+8) = 45 x 24
2x^2 + 16x - 8x - 64 = 1080
2x^2 + 8x - 64 - 1080 = 0
2x^2 + 8x - 1144 = 0 ---> divide by 2
x^2 + 4x - 572 = 0
(sum and product)
x^2 - 22x + 26x - 572 = 0
x(x - 22) + 26(x - 22) = 0
(x + 26) (x - 22) = 0
x + 26 = 0
x = -26
x - 22 = 0
x = 22
Lee has 14 strawberry scones and 21 Raspberry scones. He wants to make as many identical bags of scones as possible. Each bag should have an equal number of Strawberry scones and an equal number of Raspberry scones. What is the greatest number of bags Lee can fill? Explain how you know.
Answer:
SORRY I DON'T KNOW THE ANSWER BUT I LOVE YOUR PROFILE PICTURE LUFFY IS THE BEST <3 :D
ill give brainlest pls
Answer:
$5.00
Step-by-step explanation:
Answer:
5.00
Step-by-step explanation: this question was already answered but i need the points :p
Real answers and explanations ONLY! I’ll name you brainiest if correct
Answer:
1/10⁶ or 0.000001Step-by-step explanation:
For every time you have a probability of getting 1 is:
P(1) = 1/10For all 6, the probability of outcome of 1 is:
P(1x6) = (1/10)⁶ = 0.000001Probability of 1
P(1)=1/10Probability of 6
P(1×6)
(1/10⁶)10^{-6}A carpenter is building shelving units for a garage a small shelf requires a total of eight boards to build while large one uses 13 boards he has up to 47 boards to use for this project Select the any quality in standard form that describes the situation use the given numbers in the following variables
Answer:
8x + 13y has to be less than or equal to 47.
Step-by-step explanation:
What is the equation of the line in the slope-intercept form?
Answer:
y = [5/2]x + [5]
Step-by-step explanation:
y= mx+b
m=rise/run
m=5/2
b=y intercept
b=5
y = 5/2x + 5
Write the equation of a line going through the points (2,2) and (4,-3) in slope intercept form.
Step 1: Find slope
Step 2: find b
Step by step answer please.
Answer:
the slope is y2 - y1 over
x2 - x1
which means
[tex]( - 3- 2) = - 5[/tex]
[tex](4 - 2) = 2[/tex]
slope is m= -5/2
then you take a y from the first set of points for b
[tex]y = - \frac{5}{2} x \times 2[/tex]
hope it helps.
Will mark brainly if correct please help
Answer:
n=7Step-by-step explanation:
84×2=n×24168=24n168/24=nn=7expand and simpifly 2(x+7) + 3(x+1)
Answer: 5x+17
Step-by-step explanation:
2(x+7) + 3(x+1)
2x+14 + 3x+3
5x+17
Answer:
5x+17
Step-by-step explanation:
expanded:
2x+14 + 3x+3
simplified:
-collect like terms-
2x+3x=5x
14+3=17
When President Obama stated, "Transparency and the rule of law will be the touchstones of this presidency," he meant that
Answer:
that what
Step-by-step explanation:
A student from last year got an answer of 36 when asked to simplify the expression below. Identify the student’s mistake? Then solve it correctly.
`2+10\ \times\ 3`
Find the range of the function f (x) = 2x - 1 with the given domain -1, 0, 1, 2
I will give Brainliest!
Answer:2x-1
Step-by-step explanation:
ABC is an equilateral triangle drawn on side BC of square BCDE prove that AE=AD
Answer:
in the picture
Step-by-step explanation:
in the picture
It took Jack 2 hours to paddle 6.4 km upstream on the Black River to the giant's castle. The speed of the river is 1.8 km/h. How long will it take Jack to cross Swan Lake if the lake is 2.5 km long?
To find the time Jack takes to cross Swan Lake, his average speed is required:
The time it will take Jack to cross Swam Lake is 0.5 hours
Reason:
Time it took Jack to paddle 6.4 km upstream, t = 2 hours
Distance Jack paddled, d = 6.4 km
The given speed of the Black River, v₂ = 1.8 km/h
The width of the lake, w = 2.5 km
The time it will take Jack to cross Swan Lake
Let v₁, represents Jack's speed, we have;
[tex]v_1 - v_2 = \dfrac{d}{t}[/tex]
Therefore;
[tex]v_1 - 1.8 = \dfrac{6.4}{2} = 3.2[/tex]
v₁ = 3.2 + 1.8 = 5
Jack's speed, v₁ = 5 km/h[tex]Time \ to \ cross \ the \ lake , \ t_S = \dfrac{w}{v_1}[/tex]
[tex]t_S = \dfrac{2.5 \, km}{5 \, km/h} = 0.5 \, hr.[/tex]
The time it will take Jack to cross Swan Lake, [tex]t_S[/tex] = 0.5 hours
Learn more here:
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please help on 6 and 7 !!
Answer:
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Step-by-step explanation:
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A 230 inch pipe is cut into two pieces. One piece is 4 times length of the other. find the length of the shorter piece
Answer: 46 x 4 = 184
184 + 46 is 230
Step-by-step explanation:
how to do precentiges
QUESTION 8
The city Music Hall charges $24.00 per adult and $14.00 per senior citizen. One day 492 people attended a concert. The total for tickets purchased
was $7878.00. How many senior citizens attended the concert?
O 393 senior citizens
O 99 senior citizens
O200 senior citizens
O 292 senior citizens
Answer:
Adults (x) = 99 and
Seniors (y) = 393
393 seniors
Step-by-step explanation:
Adults= x
Seniors = y
1) x+ y = 492
2) 24x + 14y = 7,878
1) x = 492 - y
2) 24 (492 - y) + 14 y = 7,878 (substitution)
11808 - 24y + 14y = 7,878
11,808 - 10y = 7,878
11,808 - 7,878 = 10y
3,930/10 = y
y = 393
1) x + 393 = 492 (substitution)
x = 492 - 393
x = 99
Can somebody please help me?
Which number best represents a positive charge of 1,640 volts? A.
-1,540
B.
-1,640
C.
1,640
D.
1,540
Answer:
Hello there! I think the answer to your question
C
Because a "A positive voltage is a voltage that pushes electrons out of a battery."
how do you do this please help
Answer: can u be more direct plz
Step-by-step explanation:
The picture is my question, tap on it to see it better please answer it.
Answer:
When x= 4, then f(x)= 13.
When x= g(x), then f(x)=g
When x= -3, then f(x)= -1
When x= -15(x), then f(x)= -15
4) The formula for electrical power, P, is P= FR,
where I is current and R is resistance. What is the
formula for I in terms of P and R?
Answer:
Step-by-step explanation:
The formula for electrical power, P, is P = I2R , where I is current and R is resistance. The formula for I in terms of P and R is 1 I= P/R 2 3 I=P-R2 2 I= square root of P/R 4 I= square root of P-R.
1p
Oliver paid $21 for 6 t-shirts. Each shirt was the same price. What was the
cost of 1t-shirt?
$2.00
$2.50
$3.00
$3.50
Answer:
One t-shirt would cost $3.50
Step-by-step explanation:
$21 / 6 t-shirts = 3.50 each
Answer:
3.50
Step-by-step explanation:
6(2) = 12
6(2.50) = 15
6(3) = 18
6(3.50) = 21
If he paid $21 for 6 t-shirts and each t-shirt was the same price...then the cost of 1t-shirt was $3.50. If you want to double-check this, divide $21.00 by $3.50 and you should get 6 as the answer!
1/4×≤−3
For the following equation, find a solution for the variable.
:)
Will give brainiest for someone who gives me an explanation if I can
Answer:
x ≤ -12
Step-by-step explanation:
to solve for 'x', since it is getting multiplied by 1/4, you must multiply it by the inverse which is 4
whatever gets multiplied to one side of the inequality must also get multiplied to the other side
you will get:
x ≤ -12
