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Related Questions
HELP PLEASE PLEASE DUE TONIGHT !! Scores on the Wechsler Adult intelligence Scale (a Standard IQ test) for certain age group are
normally distributed with mean = 100 and standard deviation o = 15. (Find the Z scorels for
each question first, and then use Table A-2 at the back of your book to find the following
probabilities)
a What percent of IQ scores are less than 122?
(4 points)
b What is the probability that a randomly selected adult in this age group has an IQ
score higher than 147? Is this a significant/unusual event? Explain? (5
points)
C
What percent of adults in this age group have IQs between 85 and 100? Is this
I significant/unusual event? Explain?
(5
points)
Tch
3
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help plz need help will make mi day if u help
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Answer:
2 1/4 i believe correct me if im wrong
Step-by-step explanation:
Gail is learning how to bake cookies. She found that 2 out of every 9 cookies are burnt. If Gail baked 225 cookies, how many burnt cookies would she expect to get?
A.
75
B.
100
C.
50
D.
25
Answers
Answer:
(c) 50 cookies
Step-by-step explanation:
225*2/9 = 50
The seventh-grade class is building target areas for a PE activity. The bases for the game will be in a circular shape. The diameter of each circle is 6 feet. Approximately how many square
feet of the turf need to be painted for a base circle? Use 3.14 for it and round your answer to the nearest tenth.
O 7.5 square feet
O 9.4 square feet
O 18.9 square feet
O 28.3 square feet
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Answer:
28.3
Step-by-step explanation:
pi r^2 = area of circle
6/2 = radius
3.14(3)^2
28.26 -> 28.3
I need help with this
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Answer:
Step-by-step explanation:
Adding to x shifts the graph to the left and multiplying the equation by a factor greater than one stretches the graph vertically. In this case the graph has been vertically stretched by a factor of three and shifted to the left by two units.
I need the answer please
Answers
Answer:
The 1st option
Step-by-step explanation:
Because x can be anything that's not imaginary and y has to be below 2 always because of the negative value added before the 3. Also it's impossible to reverse the sign of the negative because negative x would only result in 3 becoming a fraction.
A number increased by 8 is equal to twice the same number increased by 7
Answers
Answer:
-6
Step-by-step explanation:
According to question,
x + 8 = 2(x + 7)
x + 8 = 2x + 14
2x - x = 8 - 14
x = -6
A number is increased by 8 which is equal to twice of the same number increase by 7 then the number will be -6.
What is an expression?Mathematical actions are called expressions if they have at least two terms that are related by an operator and include either numbers, variables, or both. Adding, subtraction, multiplying, and division are all reflection coefficient operations.
A mathematical operation such as reduction, addition, multiplication, or division is used to integrate terms into an expression.
As per the statement given in the question,
Let the number is x.
Number is increased by 8,
x + 8
Also,
Equal to twice of same number increased by 7.
Then the expression will be,
x + 8 = 2(x + 7)
x + 8 = 2x + 14
x = -6
To know more about expression:
https://brainly.com/question/14083225
#SPJ2
In ΔJKL, j = 57 cm, k = 12 cm and l=55 cm. Find the measure of ∠L to the nearest degree.
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Answer: 74 degrees ..............
What is the cross section of a cylinder that is perpendicular to the base through the center?
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The cross section perpendicular to the base is a rectangle. The cross section parallel to the base is a pentagon similar to the pentagonal base. The solid is a cylinder.
what is the output of the expression 14/3
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I did
14/3=4 2/3
so the final answer is 4 and 2/3
Which of the following equations have exactly one solution?
Choose all answers that apply:
-5x + 12 = 52 + 12
-5x + 12 = 5x - 5
--5x + 12 = -52 - 12
-5x + 12 = -122 - 12
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Answer:
-5x+12=52+12
Step-by-step explanation:
Hard to explain
Solve the inequality 11r – 177 – 2r > -(r = 233).
Answer with an inequality statement like r<0 or r> 29.
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Answer:
11×(233)-177-2(233)-233
how many different 4-digit security codes are possible if all of the digits must be odd?
Answers
So the answer would be 5^4
625
whats the equation y= -3x + 6 in standard form
Answers
We know that the standard form of the equation is:
ax + by = c
and we are given the equation:
y = -3x + 6
Converting to standard form:
3x + y = 6 [adding 3x on both sides]
3x + y = 6
and we are done already!
Steven has a small business that provides computer application training and data entry support services. He earns $25 per hour for training and $15 per hour for data entry support. Steven can work no more than 40 hours a week. He wants to use linear programming techniques to optimize his income. Part A Construct a model to represent the amount of time Steven can spend on data entry and training. Be sure to define your variables.
Sketch a graph of your model.
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Answer:
25×40=100
15×40=30
100+30=130
What is the area of this shape?
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Answer:
140 + 250 = 390
Step-by-step explanation:
I think 390
Formula is:
L x W
7 x 20 = 140
30 - 20 = 10 x 25 = 250
so therefore add the the two areas of the two shapes to get 390 feet squared.
Which is the graph of f(x)= 3/2(1/3)^x ?
Answers
Answer:
HERE IS THE ANSWER HOPE IT HELPS :)
Step-by-step explanation:
Brainliest PLLLLSSSSS?
Answer:
Answer is B on e 2020
Step-by-step explanation:
A dolphin jumps out of the water. The function h=-16t^2+26t models the height (in feet) of the dolphin after t seconds. After how many seconds is the dolphin at a height of 5 feet.
Answers
Answer:
The dolphin is five feet in the air after about 0.22 and 1.40 seconds.
Step-by-step explanation:
The height h (in feet) of the dolphin as it jumped out of the water after t seconds is given by the function:
[tex]h(t)=-16t^2+26t[/tex]
We want to determine the time(s) when the dolphin is five feet in the air.
Since the dolphin is five feet in the air, h(t) = 5:
[tex]5=-16t^2+26t[/tex]
Solve for t. Rearrange:
[tex]16t^2-26t+5=0[/tex]
We can use the quadratic formula, given by:
[tex]\displaystyle t=\frac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]
In this case, a = 16, b = -26, and c = 5.
Substitute:
[tex]\displaystyle t=\frac{-(-26)\pm\sqrt{(-26)^2-4(16)(5)}}{2(16)}[/tex]
Evaluate:
[tex]\displaystyle t=\frac{26\pm\sqrt{356}}{32}[/tex]
Simplify the square root:
[tex]\sqrt{356}=\sqrt{2\cdot 2\cdot 89}=2\sqrt{89}[/tex]
Hence:
[tex]\displaystyle t=\frac{26\pm2\sqrt{89}}{32}[/tex]
Simplify:
[tex]\displaystyle t=\frac{13\pm\sqrt{89}}{16}[/tex]
Hence, our solutions are:
[tex]\displaystyle t=\frac{13-\sqrt{89}}{16}\approx 0.22\text{ and } t=\frac{13+\sqrt{89}}{16}\approx1.40[/tex]
The dolphin is five feet in the air after about 0.22 and 1.40 seconds.
Measure Of Angle T. WILL GIVE BRAINLIEST
Answers
Answer:
m<T = 88
Step-by-step explanation:
7x + 4 + 5x + 3 + 2x + 5 = 180
14x + 12 = 180
14x = 168
x = 12
<T = 7x + 4
7(12) + 4
84 + 4
88
whats 1/2 x 1/4? im unbanned
Answers
Step-by-step explanation:
Given
[tex] = \frac{1}{2} \times \frac{1}{4} \\ = \frac{1}{8} [/tex]
Hope it helps :)❤
Find the value of X
12
l
l /
5 l. / X
l /
l /
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Step-by-step explanation:
According phythagorous theorem,
x²=(12)²+(5)²
x²=144+25
x= root of 169
x=13
Answer:
According phythagorous theorem,
x²=(12)²+(5)²
x²=144+25
x= root of 169
x=13
Step-by-step explanation:
Kobe drinks 1/3 cups of juice each day. He has 2 1/3 cups of juice left. For how many days will it last?
Answers
Answer:
Our juices’ journey to your table starts on the thousands of acres of citrus farms dotting Western North America. The process begins when the fruit is harvested at its sweetest, then sent to our plant to be pressed and bottled. From the plant, our juice is sent to retailers throughout the West, including Ralph’s, Bristol Farms and Pavilions to name a few. This lateral integration gets the freshest, best tasting juices to our customers as quickly as possible, and makes Perricone Farms a true “Farm-Bottle-Table” company. You’ll taste the difference with every sip.
who was the first priminister
Answers
Answer:
Sir Robert Walpole, who led the government of Great Britain for over twenty years from 1721
Step-by-step explanation:
good luck!
I NEED HELP LPZ WILL GIVE BRINLYIST FOR CORRECT ANSWER (NO LINKS)
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The point must be closed located on the top of -4 going to the left.
HELP PLEASEEEEEEE!!!!!!
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Answer: I think it is
x y
1 2
3 14
10 56
Step-by-step explanation:
So what I did is you take the 6 and multiply it by the x number then you subtract by 4
Someone please help me answer this!!
Answers
Answer:
1.75 x 10^5
Step-by-step explanation:
Answer:
[tex]1.75 \times {10}^{ - 5} [/tex]
Please I need help :(
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evaluate the question
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Answer:
A) 5/6
B) -67/30 (or) -2 7/30
A) -9/2 (or) -4 1/2
Step-by-step explanation:
A) 2/3(5)-5/2=3 1/3-5/2 = 10/3-5/2 = 20/6-15/6= 5/6
B) 2/3(2/5)-5/2= 4/15-5/2 = 8/30-75/30 = -67/30
A) 2/3(-3)-5/2=-2-5/2= -4 1/2
Which is the biggest negative integer
Answers
Answer:
-1
Step-by-step explanation:
in numeracy numbers on right hand are bigger than numbers on left hand -1 is bigger than all negative integers. they all fall on the left of -1
find the value of Y! please help
Answers
Answer:
y = 5.6
Step-by-step explanation:
Use Sine
Sine = [tex]\frac{opposite}{hypothenuse}[/tex]
Sine 45 = [tex]\frac{y}{18}[/tex]
Sine of 18 is 0.309
0.309 = [tex]\frac{y}{18}[/tex]
Multiply 18 on both sides
0.309 x 18 = [tex]\frac{y}{18}[/tex] x 18
5.562 = y
Round to the nearest tenth:
5.562 = 5.6