Answers
Related Questions
In 2014, a toy store sold 11,816 stuffed animals. In 2015, the toy store sold 24,380 more stuffed animals than it did in 2014. The toy store sold the same number of stuffed animals in 2016 as it did in 2015. How many stuffed animals did the toy store sell in 2014, 2015, and 2016 combined?
Answers
36,196*2= 72,392
72,392+11,816= 84,208
I will give Brainliest!
A collection of paired data consists of the number of years that students have studied Spanish and their scores on a Spanish language proficiency test. A computer program was used to obtain the least squares linear regression line and the computer output is shown below. Along with the paired sample data, the program was also given an x value of 2 (years of study) to be used for predicting test score.
Equation: y = mx + b
Statistics:
r2 = 0.83
r = 0.91
Parameters:
m = 10.90
b = 31.55
Answer the following questions based on the information given above.
If a person studies 4.5 years, what is the single value that is the best predicted test score? Assume that there is a significant linear correlation between years of study and test score.
83.0
80.6
49.1
53.35
Answers
Answer:
2.9 years
Step-by-step explanation:
80.6
I know that’s right because I took the test.
PLS HELP 50 POINTS IM ON A TIMER
What is the sum of the exterior angles of the equilateral triangle ∠M + ∠R + ∠X? Explain your reasoning
N = 60
M = 120
Answers
Answer:
360
Step-by-step explanation:
The inside corners of an equilater trinagle measure 60 degrees
Besides: ∠M + ∠N = 180 because supplementary angles
∠M + 60 = 180 --> ∠M = 120
Same reasoning for the pair ∠Q , ∠R and for the pair ∠X , ∠top insideangle
Hence ∠R = 120 and ∠X = 120
Therefore, the sum of the exterior angles is
∠M + ∠R + ∠X = 360
Which of the following estimates at a 95% confidence level most likely comes form a small sample?
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OptionAStep-by-step explanation:95% confidence interval is obtained using the following formulaCOnfidence interval lower bound = mean - critical value * sigma/sq rt nand upper bound = mean + critical value*sigma/sq rt nThus margin of error = critical value*sigma/rt nvaries indirectly as n provided others are remaining the same.Hence lower sample indicates higher margin of errorOut of 4 options given we find that 1 option has maximum margin of error as 21%Hence option. A is most likely coming from a small sample.
I’m having a bit issue with them can someone please help?
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You were on the right track. Here are two ways to go about it.
• By definition of conditional probability,
Pr[A | B] = Pr[A and B] / Pr[B]
Out of the total 100 participants in the survey, there are 18 people that both have a positive attitude and are over 35, so
Pr[positive and over 35] = 18/100
Out of the 100 pariticipants, 40 are over 35, so
Pr[over 35] = 40/100
Then the conditional probability you want is (18/100) / (40/100) = 18/40 = 9/20.
• There are 40 people over 35 in the survey. You want the probability that someone randomly chosen from this group has a positive attitude, of which there are 18. Hence the probability is 18/40 = 9/20.
Please help me on this math
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Answer:
95
Step-by-step explanation:
Answer:
95°
Step-by-step explanation:
you need to read where the line is along the numbers.
state the domain of f(x) = √x
Answers
Answer:
The domain is equal to (x)=√x
(x)=x is x>0x>0
Electric utility poles in the form of right cylinders are made out of wood that costs $25.46 per cubic foot. Calculate the cost of a utility pole with a diameter of 1.5 ft and a height of 30 ft. Round your answer to the nearest cent.
Answers
Answer:
$1349.75
Step-by-step explanation:
Use the equation for volume of a cylinder - pi * radius^2 * height
Halve the diameter to find the radius - 1.5 / 2 = 0.75 ft
Find the volume of the cylinder - pi * 0.75^2 * 30 = 53.0143760293 cubic feet or ft^3
Multiply volume by cost per cubic foot - 53.014... * 25.46 = 1349.746013706
Round to nearest cent = $1349.75
:)
Solve for t.
2 - 16+ = 6(-3t + 2)
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Answer...
Ok done. Thank to me >:33
Manny drew a scale diagram of his classroom. His real classroom is 20 feet wide. Manny's drawing is 4 centimeters (cm) wide. What is the scale factor of the drawing?
Answers
Answer:
1 cm : 5 feet
Step-by-step explanation:
4 cm : 20 feet
1 cm : 5 feet
20 has been divided by 4.
16. Levi has two pieces of decorative tapes, one x cm long and the other x(x+1)
cm long. To decorate an album, she wants to cut them up to produce many
pieces of decorative tapes that are all of the same length, with no left overs.
a. Express in terms of x the greatest possible length, in cm, that she can cut
them into.
b. The difference in length between the two tapes is 4 cm. What is the value of
c. Hence, or otherwise, how many smaller decorative tapes can she produced in
all?
Answers
Explanation it’s A
0.551567 round to the nearest tenth
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Answer:
0.6
Step-by-step explanation:
0.551567
You look at the hundredth value to see if you can find it up to the tenth.
If it's at least between 5-9 then round anything below between1-5 you can not found.
Answer:
0.6
Step-by-step explanation:
The function y=-16t^2 +36 represents the height y (in feet) of a water droplet t seconds after falling from an icicle. After how many seconds
does the water droplet hit the ground?
Answers
Answer:
1.5 seconds
Step-by-step explanation:
plug 0 in for y
0=-16t^2+36
then slove for t
-36=-16t^2
-36 / -16 = 9/4
9/4=t^2
square root of 9/4 is 3/2 or 1.5
t=1.5
I need some help will mark brainliest
Answers
Answer:
(n + 4)^3/5 .
Step-by-step explanation:
⁵√(n + 4)^3
⁵√(n + 4) = (n + 4)^1/5
⁵√[(n + 4)^3] = (n + 4)^1/5 ^ 3
= (n + 4)^3/5 .
So
order the steps to solve -3x + 2.4 =19.2
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Answer: -5.6
Step-by-step explanation: Subtract 2.4 from both sides
Divide both sides by -3
help me please please
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Answer:
81.7 in (nearest tenth)
Step-by-step explanation:
[tex]\textsf{Circumference of a circle}=\sf 2 \pi r\quad\textsf{(where r is the radius)}[/tex]
Given:
r = 13 inSubstituting given value into the formula:
[tex]\begin{aligned}\implies \textsf{Circumference} & =2 \pi \cdot 13\\ & = 26 \pi\\ & = 81.7\: \sf in\:(nearest\:tenth)\end{aligned}[/tex]
Write 7/16+3/16 in simplest form.
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Answer:
Step-by-step explanation:
Remark
Normally you would have to make sure that the bottoms of each fraction to be added would be the same. In this question, they are, so nothing further to getting the bottoms the same has to be done,
Solution
answer = 7 / 16 + 3 / 16
answer = (7 + 3) / 16
answer = 10/16
Both top and bottom are even numbers so you can divide both top and bottom by at least 2.
10/2 = 5
16 / 2 = 8
So answer = 5/8
Ayuda es mi examen y no me sale :cry:
a)4
b)3
c)7
d)1
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Answer:Answer C) 7
Step-by-step explanation:
M= -14-20+32
-34 + 32
M=-2
N= 19-32+22
N = 19-10
N = 9
M + N = -2+9
M+N = 7
Answer c
Can someone please help me? And please explain your answer afterwards!
Answers
Answer:
The answer is (-3,-2)
Step-by-step explanation:
I cant do this right now.
What is the temperature, in degrees Fahrenheit, shown on the thermometer to the nearest integer? Enter your integer answer in the box.
Answers
Rewrite the following expressions without parentheses or negative exports
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Answer:
Simplfied format with no parentheses or negative exponents: [tex]\frac{15y^5}{3x^{10}}[/tex]
5200 at 7.36%for 54 months
Answers
Answer:
i am not 100% sure but i think
Step-by-step explanation:
20,666.88 i believe that is the answer
I NEED HELP WITH THIS ASAP AND PLEASE
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.A basket that contains 12 apples costs
$3.75. What is the price for a basket that
contains 18 apples?
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Answer:
$5.63
Step-by-step explanation:
We can form a ratio to solve this problem
12:3.75
18/12 = 1.5 times rate
1.5(12):1.5(3.75)
18:5.625, rounded to 5.63
Answer:
$5.63
Step-by-step explanation:
Divide the dollar over the apple.[tex]$3.75/12=0.3125[/tex] cent per apple. Now multiply it with 18 apples.
[tex]18 apples * 0.3125 cent = $5.625[/tex] rounding that up to cents so $5.63
Which image shows a plane slicing a double-napped cone to produce a hyperbola?
Answer is D
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The second image in the diagram is a hyperbola. As can be seen, the plane cutting the cone can be at any angle but never equal to the slant angle of the cone. This has a very important implication. The plane cuts both cones of the double-napped cone. The third double-napped cone of Figure 3 shows two hyperbolas.
The plane sliced a third double-napped cone to produce a hyperbola
The second image in the diagram is a hyperbola.
As can be seen, the plane cutting the cone can be at any angle but never equal to the slant angle of the cone.
What is the slant angle?The slant angle of a pick is defined as the angle between the axis of the pick and the normal direction of the rock surface being cut by the pick.
This has a very important implication.
The plane cuts both cones of the double-napped cone.
The third double-napped cone in two hyperbolas.
Thus, The plane sliced a third double-napped cone to produce a hyperbola.
To learn more about the hyperbola visit:
https://brainly.com/question/2351925
#SPJ2
Identify the slope and y-intercept of each of the following lines. Then graph each line.
8y = -2x + 32
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First rewrite the equation in slope intercept form
slope intercept form: y = mx + b [ where m is slope and b is y-intercept ]
[tex]\rightarrow \sf 8y = -2x+32[/tex]
[tex]\rightarrow \sf y =\dfrac{ -2x+32}{ 8}[/tex]
[tex]\rightarrow \sf y =\dfrac{ -2x}{ 8} + \dfrac{32}{8}[/tex]
[tex]\rightarrow \sf y =\dfrac{ -1}{ 4}x + 4[/tex]
comparing with y = mx + b
slope: -1/4 and y-intercept: 4x-intercept: ( then y will be 0 )
[tex]\hookrightarrow \sf -2x + 32 = 0[/tex]
[tex]\hookrightarrow \sf -2x = -32[/tex]
[tex]\hookrightarrow \sf x = 16[/tex]
In order to graph the line
plot x = 16 on the x-axis coordinate: (16, 0)plot y = 4 on the y-axis coordinate: (0, 4)Then using a scale/ruler draw a straight line through this points.Graph:
Compare to slope intercept form
slope=m=-1/4A triangle has an area of 600 square feet. The height of the triangle is 20 feet. The base of the triangle is
Answers
Answer: 60
Step-by-step explanation:
Area = ½base × height
600 = ½b × 20
600/20 = ½b
Base = 30 × 2
For the table, enter an equation that expresses y in terms of x.
x 12 11 10
y 9 8 7
Answers
Answer: y= X-3
Step-by-step explanation:
I plugged it into the calculator. You can also use the formula y2-y1 all over x2-x1. Then use the formula y-y1=m(x-x1).
The dot plot shows the number of library books borrowed by a group of children.
A dot plot whose number line is labeled Number of books borrowed. There is 1 dot above 0, 2 dots above 1, 4 dots above 2, 4 dots above 3, 6 dots above 4, 3 dots above 5, 5 dots above 6, 3 dots above 7, 1 dot above 8, and 1 dot above 9.
Select from the drop-down menus to correctly complete the statement.
The distribution of data is
approximately normal
skewed left
skewed right
, with a mode of
4
6
8
9
, and a range of
4
6
8
9
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Answer:
Approximately normal
Mode: 4
Range:9
Step-by-step explanation:
The data is pretty evenly spread, the data isn’t pushed to the left or right giving the answer of approximately normal.
Mode: The number that occurs the most is the mode. This means that 4 would be the answer because it has the most dots.
Range: To find the range subtract the smallest number from the biggest number. In this case you would get 9-0 (this is because no data is recorded for 10) which equals 9.
I hope this helps! :)
Help me please this topic is midpoint
Answers
Answer:
They bisect each other.
Step-by-step explanation:
→Solution,
Here, coordinate of quadrilateral DEFG are D(-3,-5), E(-4,3), F(2,6) and G(3,-2).
⇒For diagonal DF.
Let,(x1,y1)=(-3,-5)
(X2,Y2)=(2,6)
→Using midpoint formula.
[tex]x=\frac{x_1+x_2}{2} ,y=\frac{y_1+y_2}{2} \\\\x=\frac{-3+2}{2} ,y=\frac{-5+6}{2}\\\\x=\frac{-1}{2} ,y=\frac{1}{2}[/tex]
⇒For diagonal EG.
Let,(x1,y1)=(-4,3)
(X2,Y2)=(3,-2)
→Using midpoint formula.
[tex]x=\frac{x_1+x_2}{2} ,y=\frac{y_1+y_2}{2} \\\\x=\frac{-4+3}{2} ,y=\frac{-2+3}{2}\\\\x=\frac{-1}{2} ,y=\frac{1}{2}[/tex]
Here, the midpoint of diagonal DF and EG is equal.
Hence they bisect each other.
Midpoint of DF and EG must be same
#DF
M(x,y)
((-3+2)/2,(-5+6)/2)(-1/2,1/2)#EG
P(x,y)
((-4+3)/2,(3-2)/2)(-1/2,1/2)As mid points are equal diagonals bisect each other