Ahmad's best test score for Chemistry has a z-score of 0.5 as compared to all students in his class. Which statement best interprets his z-score?
A. Ahmad's test score is 0.5 standard deviations below the mean for all students taking the same test.
B. Ahmad's test score is 0.5 points lower than all students taking the same test.
C. Ahmad's test score is 0.5 standard deviations above the mean for all students taking the same test.
D. Ahmad's test score is 0,5 points higher than all students taking the same test.
Answers
Answer: C
Step-by-step explanation: z-value comes from equatio
z = number of points - average points ) / deviation.
z = 0,5 is over average value and 0,5 standard deviation higher than average result.
Answer:
the answer is c. Ahmad's test score is 0.5 standard deviations above the mean for all students taking the same test.
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For the right triangles below, find the exact values of the side lengths a and c. If necessary, write your responses in simplified radical form.
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Answer:
First triangle: [tex]a = 5\sqrt{2}[/tex], second triangle: [tex]c = \frac{8\sqrt{3}}{3}[/tex]
Step-by-step explanation:
In the first triangle, the value of [tex]a[/tex] is equal to the following trigonometric relation:
[tex]a = \frac{5}{\cos 45^{\circ}}[/tex]
[tex]a = \frac{5}{\frac{\sqrt{2}}{2} }[/tex]
[tex]a = \frac{10}{\sqrt{2}}[/tex]
[tex]a = \frac{10\sqrt{2}}{2}[/tex]
[tex]a = 5\sqrt{2}[/tex]
In the second triangle, we obtain the value of [tex]c[/tex] is equal to the following trigonometric relation:
[tex]c = 8\cdot \tan 30^{\circ}[/tex]
[tex]c = 8 \cdot \left(\frac{\sin 30^{\circ}}{\cos 30^{\circ}} \right)[/tex]
[tex]c = 8\cdot \left(\frac{\frac{1}{2} }{\frac{\sqrt{3}}{2} } \right)[/tex]
[tex]c = \frac{8}{\sqrt{3}}[/tex]
[tex]c = \frac{8\sqrt{3}}{3}[/tex]
please help me
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If 8 cents are needed to buy 10 pebbles, how many dollars are needed to buy 205 pebbles?
Answers
Answer:
Hello There!!
Step-by-step explanation:
If 8 cents=10 pebbles then do 205 divided by 10 which is 20.5 . So, 8×20.5=164 dollars.
(8×20.5=164) 8 cents=10 (10×20.5=205)
164 dollars=205
Therefore,the answer is 164 dollars.
hope this helps,have a great day!!
~Pinky~
a puzzle is shown below. what is the area of the shaded portions of the puzzle?
Answers
Answer:
it's a parallelogram
Step-by-step explanation:
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Jay has an album that holds 900 photos. Each page of the album holds 9 photos. If 64 % of the album is empty, how many pages are filled with photos?
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well 9+10=21
Step-by-step explanation:
21Answer: 21
Step-by-step explanation:
Which of the following is closest to the circumference of a circle whose radius is 21 m
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Here Is your answer!!!!
A marble is randomly selected from a bag containing 3 red marbles, 3 blue marbles, and 3 green marbles. what is the probability that the selected marble is green?
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Answer:
1/3
Step-by-step explanation:
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Answers
Step-by-step explanation:
Rewrite the expression 1/x^2/3 in the form x^nRewrite the expression 1/x^2/3 in the form x^n
An expression is defined as a set of numbers, variables, and mathematical operations. The given expression can be written in the form of xⁿ as x⁻⁰°⁶⁶.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The given expression [tex]\dfrac{1}{x^{\frac23}}[/tex] can be written in the form of xⁿ using the exponential property 1/x=x⁻¹. Therefore, the expression can be rewritten as,
[tex]\dfrac{1}{x^{\frac23}}\\\\= x^{-\frac23}[/tex]
= x⁻⁰°⁶⁶
Hence, the given expression can be written in the form of xⁿ as x⁻⁰°⁶⁶.
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Which gives the value of -32 + (-8)?
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Answer:
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Step-by-step explanation:
Find the median, mean, and range.
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Answer:
Median: 10
Mean: 9
Range: 15
Step-by-step explanation:
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explain the differnce between -3^4 and (-3)^4
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Answer:
[tex] { - 3}^{4} = - (3 \times 3 \times 3 \times 3) \\ {( - 3)}^{4} = ( - 3 \times - 3 \times - 3 \times - 3)[/tex]
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Answer:
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Step-by-step explanation:
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Step-by-step explanation:
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If a box has a length of 12 inches, a width of 10 inches and a height of 6 inches, what is the surface area?
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Answer:
The answer is 28.
Step-by-step explanation:
Add all of them.
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(W/ width) 10
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I hope this helps
Answer:
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Step-by-step explanation:
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Answer:
A
Step-by-step explanation:
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Answer:
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Answer:
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Step-by-step explanation:
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Answer:
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Answers
Two points passing through the line are (2, 80) and (4, 140)
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A group of New York City residents are surveyed. They are asked if they are going to watch the New York City Marathon in person. Of the people surveyed, 68 men and 45 women will watch the marathon, while 100 men and 192 women will not watch the marathon. Place each joint and marginal relative frequency in the correct location in the two-way table.
Answers
Answer:3
Step-by-step explanation:
Priya has 5 pencils, each x inches in length. When she lines up the end of the pencil to the end, they measure 34.5 inches.
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Select all that apply:
A. 5 + x = 34.5
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C. 34.5 ÷ 5 = x
D. 34.5 − 5 = x
E. x = (34.5) ⋅ 5
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Answers
Answer:
B. 5x = 34.5 the pencil to the end
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Answers
Answer:
c
Step-by-step explanation:
Answer:
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
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Answers
Answer:
(x + 4)(5x - 4)
Step-by-step explanation:
[tex]5x^2 + 16x – 16 \\ = 5x^2 + 20x - 4x– 16 \\ = 5x(x + 4) - 4(x + 4) \\ = (x + 4)(5x - 4)[/tex]
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(5x - 4) • (x + 4)
Step-by-step explanation:
Multiply the coefficient of the first term by the constant 5 • -16 = -80
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Answers
Answer:
26
Step-by-step explanation:
Answer:
26
Step-by-step explanation:
Let the number be x.
Now,
2x + 8 = 60
2x = 60 - 8
x = [tex]\dfrac{52}{2}[/tex]
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Hence, the number is 26.
PLS HURRRY PLSSS HURRYRY
Answers
Answer: 10in^2 or this
Step-by-step explanation: Hope this help :D
Answer:
29
Step-by-step explanation:
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Sorry if this didn't help ;(
A goat is tethered to a rope that is 10 ft. long. In terms of Tt, what is the maximum area the goat can graze? A) 10pi; ft? B) 25 ft2 C) 5 Ont ft2 D) 100Tt ft2
Answers
Answer: D trust me it is 100
Step-by-step explanation:
The maximum area the goat can graze is 100Tt ft2, the correct option is D.
Given
A goat is tethered to a rope that is 10 ft. long.
Area of the circleThe area of the circle is equal to the pie times of the square of the radius of the circle.
The maximum area that the goat can graze in the area of the circle that can be formed due to its circular movement.
The length of the rope represents the radius of the circle, so that;
[tex]\rm Area \ the \ goat \ can \ graze =r^2 \times Tt\\\\ Area \ the \ goat \ can \ graze =(10)2 \times Tt\\\\Area \ the \ goat \ can \ graze =100 \ Tt\\[/tex]
Hence, the maximum area the goat can graze is 100Tt ft2.
To know more about the area of the circle click the link given below.
https://brainly.com/question/24423062