Answers
Answer:
A
Step-by-step explanation:
In one hour Marty walked three miles..He then stayed there because the line didn't move. If he had walked three more miles, the graph would have been moving up and instead of a horizontal line it would have been a diagonal line .
How you know he came home after 4 hours because right at five hours the line went down to 0 miles from his home. Which means he was at his home.
I hope this helps!
Related Questions
1½ hours is how much in seconds??
Answers
3/2=1.5 hour=5400 second
Hope it helps you
Answer:
5,400 seconds.
(WILL GIVE BRAINLIEST IS CORRECT)
A. a prediction based on the data is not completely reliable, because the means of sample 2 and 3 are too close together.
B. A prediction based on the data is reliable, because there are no noticeable differences among the samples.
C. a prediction based on the data is not completely reliable, because the mean of sample 1 is noticeably lower than the means of the other 2 samples.
D. a prediction based on the data is reliable, because the means of samples 2 and 3 are very close together.
Answers
Answer:
I’m pretty sure it’s D.
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Which value of X is a solution of x<-2
A.-3
B.-2
C.-1
D.0
Answers
Answer:
A.) -3
Step-by-step explanation:
-3 is less than -2 therefore, it fits the answer.
A on a chart you would see that -2 is closer to the right and has greater value that -3
which one is it? ill mark brainliest if correct
Answers
Answer:
D
Step-by-step explanation:
Mark as brainllest
show that the bowtie method can be used to multiply (2x -27)(-x +15)
Answers
( 2x − 27 ) ( −x + 15 )
= ( 2x + −27 ) ( −x + 15 )
= ( 2x ) ( −x ) + ( 2x ) ( 15 ) + ( −27 ) ( −x ) + ( −27 ) ( 15 )
= −2x^2 + 30x + 27x − 405
= −2x^2 + 57x − 405
A hospital recorded the weights, in ounces, of newborn babies for two weeks. The
results are listed below.
Weights of babies born during week one: 128, 105, 80, 82, 96, 98, 87, 100, 112, 126
Weights of babies born during week two: 75, 85, 90, 97, 89, 105, 110, 127, 129, 130
Which statement is true?
Answers
Answer:
The standard deviation for week two was about 3 ounces more than the standard deviation for week one
Step-by-step explanation:
Given
[tex]Week\ 1: 128, 105, 80, 82, 96, 98, 87, 100, 112, 126[/tex]
[tex]Week\ 2: 75, 85, 90, 97, 89, 105, 110, 127, 129, 130[/tex]
See attachment for options
Required
The true statement
Checking the standard deviation
For week 1
Calculate the mean:
[tex]\bar x = \frac{\sum x}{n}[/tex]
[tex]\bar x = \frac{128+ 105+ 80+ 82+ 96+ 98+ 87+ 100+ 112+ 126}{10}[/tex]
[tex]\bar x = \frac{1014}{10}[/tex]
[tex]\bar x_1 = 101.4[/tex]
Then standard deviation
[tex]\sigma = \sqrt{\frac{\sum(x - \bar x)^2}{n}}[/tex]
[tex]\sigma_1 = \sqrt{\frac{(128 - 101.4)^2 +............+ (126- 101.4)^2}{10}}[/tex]
[tex]\sigma_1 = \sqrt{\frac{2522.4}{10}}[/tex]
[tex]\sigma_1 = \sqrt{252.24[/tex]
[tex]\sigma_1 = 15.88[/tex]
For week 2, we have:
[tex]\bar x = \frac{75+ 85+ 90+ 97+ 89+ 105+ 110+ 127+ 129+ 130}{10}[/tex]
[tex]\bar x = \frac{1037}{10}[/tex]
[tex]\bar x_2 = 103.7[/tex]
Then standard deviation
[tex]\sigma_2 = \sqrt{\frac{(75 - 103.7)^2 +................+ (130- 103.7)^2}{10}}[/tex]
[tex]\sigma_2 = \sqrt{\frac{3538.1}{10}}[/tex]
[tex]\sigma_2 = \sqrt{353.81[/tex]
[tex]\sigma_2 = 18.81[/tex]
Compare the standard deviations
[tex]\sigma_1 = 15.88[/tex]
[tex]\sigma_2 = 18.81[/tex]
Calculate the difference:
[tex]d = \sigma_2 - \sigma_1[/tex]
[tex]d = 18.81 - 15.88[/tex]
[tex]d = 2.93[/tex]
[tex]d \approx 3[/tex]
This implies that option (b) is true
A wheelchair ramp is 16 feet long. The ramp sits up on a 2 foot platform. How far is it from the end of the ramp to the bottom of the platform?
Answers
Answer:
254
Step-by-step explanation:
This is basically a triangle, with a height of 2, and hypotenuse of 16.
Using the Pythagorean theorem (a^2+b^2=h^2) we can find the other side.
2^2+b^2=16^2
4+b^2=256
b^2=254
b=√254
URGENT THIS IS FOR FINALS CAN SOMEONE PLZ SOLVE IT I will brain list
Answers
Answer:
were is the line
Step-by-step explanation:
Answer:
1- y=2x-5
2- y=-1/6x-5
Hope this helps you!!
A 16 ft ladder leans against a wall so that the base of the ladder is 5 ft away from the base of the wall. How far up the wall does the ladder reach.
Answers
Answer:
The ladder would reach 15.2 feet up
How many solutions does the equation 4x+2(x-5)=3(3x-4) have?
Answers
Answer:
It has 1.
Step-by-step explanation:
x=2/3 or x=0.6.
A toy company used 18 pints to make 9 action figures, which is a rate of _ pints per figure
Answers
Answer:
For 1 figure, 2 pints are used
Step-by-step explanation:
9 figures = 18 pints
1 figure = 18/9
1 figure = 2 pints
Hope this helps!
PLEASE EHELP ASAP AGHHHHH
Answers
Answer:
8.3
Step-by-step explanation:
mark as brainliest!!
The length of an equilateral triangle is increased by 5 cm. The perimeter of the new triangle is 72 cm. What is the side length of the original triangle?
Answers
Answer:
19cm
Step-by-step explanation:
An equilateral triangle is a triangle where the length of the 3 sides are the same.
the perimeter is the sum of the 3 sides
for example, if the length of the side of the an equilateral triangle is 5, the perimeter is 5 x 3 = 15
let x = unknown length of side
length after increase = x + 5
(x + 5) x 3 = 72
divide both sides of the equation by 3
x + 5 = 24
subtract 5 from both sides of the equation
x = 24 - 5 = 19cm
PLEASE HELP EASY MATH!!!!!!!!!
Answers
Answer:
b
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
Someone please help me with this algebra question the formula for triangle is A = 1/2bh and for the trapezoid is a=1/2h(b1 + b2) if I’m not wrong
Answers
Answer:
Triangle: 63 square units Rhombus: 56 square units
Step-by-step explanation:
Rhombus formula: Base x Height
4 x 14 = 56
Triangle formula: 1/2 x Base x Height
6 x 21= 126
126 x 1/2 = 63
btw, this isn't algebra
Solve log2 x = log5 3+1 by graphing. round to the nearest tenth
Answers
Answer:
the answer is 3.2
Step-by-step explanation:
x≈3.2
Dominic has a bag that contains pineapple chews, cherry chews, and peach chews. He performs an experiment. Dominic randomly removes a chew from the bag, records the result, and returns the chew to the bag. Dominic performs the experiment 53 times. The results are shown below:
A pineapple chew was selected 39 times.
A cherry chew was selected 9 times.
A peach chew was selected 5 times.
Based on these results, express the probability that the next chew Dominic removes from the bag will be peach chew as a fraction in simplest form.
Answers
Answer:
5/53
Step-by-step explanation:
You roll a standard number cube 7 times Assume that each number is equally likely to come up each time you roll To the nearest tenth of a percent the probability that number less than 3 comes up exactly 4 of the 7 times
Answers
Answer:
0.4%
Step-by-step explanation:
If we are looking to have a number less than 3 rolled 4 out of 7 times.
Our winning numbers are 1 and 2. Our losing numbers are 3, 4, 5, and 6.
This means that our winning percentage is 33.3% and our losing percentage is 66.6%.
We need to multiply these numbers together taking our number of rolls into account.
.333 * .333 * .333 * .333 * .666 * .666 * .666 = 0.0036
• Which expressions are equivalent to 14a + 286?
Answers
Answer:
2(7a + 143)
what are the answers or are you asking us to find them
Answer:
2(7a + 4)
Step-by-step explanation:
a fair dice is rolled. work out the probability of getting a factor of 6. give your answer in its simplest form
Answers
Answer:
1 out of 60.
this is found by taking the one side of six and multiplying the total sides by 10.
Step-by-step explanation:
What geometric figure is the union of two non-collinear rays AB and AC? AC?
a. angle BAC
b. triangle ABC
c. arrow going both ways AB
d. arrow going both ways BC
Answers
Answer:
angle bac is the answer
Step-by-step explanation:
both rays emanate from the shared point 'a', which will be the vertex of angle bac
Jeffrey's recipe for oatmeal muffins calls for 2 3/4 cups of oatmeal and makes one dozen muffins. If he makes 2 dozen muffins for a club meeting and 1 1/2 dozen muffins for a family reunion, how much oatmeal will he use?
Answers
Answer:
5
Jeffrey will use 9 __ cups of oatmeal
8
Step-by-step explanation:
2.75 cups of oatmeal per 1 dozen
2.75 x 2 = 5.5
2.75 + 2.75(1/2) = 4.125
add
5.5 + 4.125 =
9.625 cups of oatmeal
or
9 5/8 cup
9.
A. 5x – 3y = 20
B. –3x – 5y = 20
C. –3x + 5y = 4
D. –3x + 5y = 20
Answers
Answer:
Answer:
-3x+5y=20
Step-by-step explanation:
Standard form is given by ax+by=c
where a , b and c are integers
here we have an equation
so we first multiply the complete equation by 5 to get rid of the fraction
Now subtract 3x from both side to get the required standard form
-3x+5y=20
Step-by-step explanation:
just move y to the side with x and move 4 to the other end
your school is having a fundraiser in order to pay for t-shirts. They need to raise $882.69. They have already collected $92.85 in donations. Their goal is to have $190 donated each week. How many weeks do they need to fundraise?
Answers
= $786.84
then divide by $190
= 4.14
= 5
therefore they need to fundraise for 5 weeks
There is 5 weeks do they need to fundraise.
What is the inequality?Inequality is a Mathematical statement that shows the relation between two expressions using the inequality symbol.
Your school is having a fundraiser in order to pay for t-shirts.
They need to raise $882.69.
They have already collected $92.85 in donations.
Their goal is to have $190 donated each week.
Let, x be the number of weeks do they need to fundraise.
The number of weeks do they need to fundraise is given by;
[tex]\rm 92.85 +190x > 882.69\\\\190x > 882.69-92.85\\\\ 190x > 789.84\\\\x > \dfrac{789.84}{190}\\\\x > 4.15[/tex]
Hence, there is 5 weeks do they need to fundraise.
Learn more about inequality here;
https://brainly.com/question/15140706
#SPJ2
which expressions are equivalent to -96/5
Answers
Answer:
irdk but papi u a rari
Step-by-step explanation:
Help, and if you send a link I whole report
Answers
What is the measure of ∠A, the exterior angle of the triangle shown below?
Answers
Answer:
88
Step-by-step explanation:
Each triangle has a sum of 180 degrees. So we find the missing angle with this rule.
180-38-50.
The angle is 92 degrees.
Now to find the angle of A, each angle adds up to 180 on a line. so 180-92. So you get 88
Answer:
Step-by-step explanation:
38+50=angle A(the sum of two interior opposite angle is equal to the external angle formed)
88=angle A
Summer Storme is analyzing an investment. The expected one-year return on the investment is 20 percent. The probability distribution of possible returns is approximately normal with a standard deviation of 15 percent. a. What are the chances that the investment will result in a negative return? b. What is the probability that the return will be greater than 10 percent? 20 percent? 30 percent? 40 percent? 50 percent?
Answers
Answer:
suchh harddb
Step-by-step explanation:
find the area of the trapezoid?
Answers
Answer:
46,746 mm²
Step-by-step explanation:
½×(210+84)×318
= 46,746 mm²
PLEEEEASEEE HELP ASAP
In the diagram, the measures of ∠1 and ∠4 are 105°. The measures of ∠5 and ∠8 are 115°. Are lines c and d parallel
a p e x
Answers
Answer:
a
Step-by-step explanation:
Answer:
Option A
Step-by-step explanation:
I just got done with this same quiz and i got a 100 .