PLEASE HELP ASAP:))) I WILL GIVE YOU BRAINLEST ANWSER
(use the graph)
The picture below shows the dependence of the breaking distance on its speed on a dry road (curve OA), on a wet road (curve OB), on an icy road (curve OT). Answer the following questions:
a) What is the breaking distance of the car at a speed of 50 kilometers per hour in each case?
On a dry road : m
On a wet road : m
On an icy road : m
b) What should be the car’s speed in all three cases so that the breaking distance doesn’t exceed 60 meters?
On a dry road : the highest speed should be km/h
On a wet road : the highest speed should be km/h
On an icy road : km/h
Answers
Breaking distance "s" in meters is on the y-axis.
Each curved line represents the different road conditions.
for (a.) find the y-coordinate for each
Dry, curve A. follow the 50km/hr up to the curve and see it corresponds to about 30 m
Wet road, curve B. follow the 50km/hr mark up to see it corresponds to 80 m
Icey, curve T is 140 m
for (b.) they give you the breaking distance on the y-axis to find the corresponding speeds for each road condition. Follow the 60 m mark across to find each x-coordinate,.
Dry curve A, 70 km/hr
Wet curve B, about 45 km/hr
Icey curve T, 30 km/hr
Related Questions
40% of a certain number is 80 what is that number ?
Answers
40/100(x)=80
x=200
Your answer is 200.
Geometry help please
2 attachments, 1 question
Answers
1. definition of supplementary angles
2. 115
3. definition of acute angle
Supplementary angles mean that the angle will add up to 180°. In this case, that means PQR + RQS= 180° where PQR=115°
So the RQS would be 180-115=65° Acute angle is when the angle is <90° so RQS is acute angles
solve 7d + d - 4d - 7 - 5d
Answers
1, Simplify 7d+d-4d-77d+d−4d−7 to 4d-74d−7
4d-7=5d4d−7=5d
2.Subtract 4d4d from both sides
-7=5d-4d−7=5d−4d
3. Simplify 5d-4d5d−4d to dd
-7=d−7=d
4. Switch sides
d=-7d=−7
5. so your answer would be -7
What is the measure of each interior angle for a regular polygon with 30 sides?
Answers
5040/30=168 degrees in each interior angle
Which number is a solution of the inequality? 6 ≥ 6k?
Answers
Factor the expression:
30x^3-5x^2-18x+3
PLZ SHOW YOUR WORK
Answers
30x^3 -5x^2 turns into 5x^2(6x-1)
-18x+3 turns into -3(6x-1)
we can then combine them to get (5x^2-3) (6x-1)
[2/(n+2)] - (3/n+2) = 5
Solve by u-substitution
Answers
What is the median of the data set: 15, -2, 0, 15, 2, 12
Answers
-2, 0, 2, 12, 15, 15
median is the middle number
so
median = (2+12)/2 = 14/2 = 7
hope it helps
-2,0,2,12,15,15
Since there are 2 medians, you find the average of those two numbers.
2+12 is 14/2 is 7.
7 is the median.
If a = -4, and b = 3 what is |a-b|
Answers
Using this concept:
|a - b|
|-4 - 3|
|-7|
7
Hope this helps!
l-4-3l
l-7l
7
I think that’s how you do it
Which statement is true about regular exercise? 1.It decreases your resting heart rate.
2.It decreases your lung capacity.
3.It decreases your intelligence.
4.It increases your blood pressure.
Answers
Answer:
got correct on edmentum mastery test, hope this helps
The sum of two numbers is 39 . the smaller number is 13 less than the larger number. what are the numbers
Answers
13+26=39 and 26-13=13
The required numbers are given as 26 and 13.
What are equation models?The equation model is defined as the model of the given situation in the form of an equation using variables and constants.
here,
let the number be x and y,
According to the question,
x + y = 39 - - - - (1)
x = y + 13 - - - - - (2)
Put value from equation 2, in equation 1
y + y + 13 = 39
2y = 39 - 13
y = 26/y
y = 13
Now,
x = 13 + 13
x = 26
Thus, the required numbers are given as 26 and 13.
Learn more about models here:
https://brainly.com/question/22591166
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If a six sided die is tossed two times and '3' shows up both times, the probability of a '3' on the third trial is
Answers
If a six sided die is tossed two times and '3' shows up both times, the probability of a '3' on the third trial is [tex]\frac{1}{6}[/tex]
Given :
A six sided die is tossed two times and '3' shows up both times
'3' shows up both the times .
When the dice is rolled third time. there are 6 possibilities comes up
In the third trial , we have six possibilities 1,2,3,4,5,6
Out of six possibilities , the chance of getting '3' is only once
So, the probability of a '3' on the third trial is [tex]\frac{1}{6}[/tex]
Learn more: brainly.com/question/15981880
Closest integer to the square root 75
Answers
Thus the nearest integer is 9
Hope this helps :)
√64 = 8
√81 =9
think it should be 9 it's closer
What is the average of 12 1/2, 13, and 13?
Answers
(12.5+13+13)/3
=38.5/3
=12.833
Raul is selling coupon books. He started with 50 coupon books and has already won a prize for selling at least 10 coupon books. The total amount of money Raul will make from selling x coupon books is represented by a function.
f(x)=20xf(x)=20x
What is the practical domain of the function if Raul sells 50 coupon books?
Answers
What is the value for X?
- 24
-9
-21
-14
what is the measure of <1?
- 45
- 60
- 120
-125
Answers
180-5x-15=3x-3
-5x-3x=-3-180+15
-8x= -168
x= 168/8= 21
x=21
angle <1
180-(3x-3)
180-(3×21-3)
180-(63-3)
180-60= 120°
The value of X is -14 and the measure of <1 is 60 degrees.
Explanation:The value of X is -14. This can be determined by checking each option and finding the one that satisfies the given condition. Similarly, the measure of <1 is 60 degrees. This can also be determined by checking each option and finding the one that matches the given criteria.
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You are playing a video game. For each diamond you collect, you earn 80 points. You also earn 100 bonus points by completing the level in less than 2 minutes. You need to earn more than 1220 points to continue on to the next level. Write and solve an inequality that represents the numbers dd of diamonds you must collect in less than 2 minutes to advance to the next level.
Answers
Given
For each diamond you collect, you earn 80 point
earn 100 bonus points by completing the level in less than 2 minutes.
earn more than 1220 points to continue on to the next level
Find the inequality that represents the numbers dd of diamonds you must collect in less than 2 minutes to advance to the next level.
To proof
As given in the question
For each diamond earn point = 80
bonus points by completing the level in less than 2 minutes = 100
earn more than 1220 points to continue on to the next level
Let us assume that the number of diamond = d
The inequality written in the form
we get
[tex]80d + 100 \geq 1220[/tex]
now solving the above equation
[tex]80d \geq1120[/tex]
[tex]d \geq14[/tex]
Thus the numbers of diamonds you must collect in less than 2 minutes to advance to the next level be 14.
Hence proved
The temperature was 8 degrees below zero. What does the 0 represent?
Answers
i hope this helped! have a wonderful day!!!
Is it possible for two linear functions whose graph are parallel to have the same y-intercept
Answers
There are 8 pencils in package.how many packages will be needed for 28 children if each child get 4 pencils
Answers
28 children need pencils
Each child gets 4 pencils
28x4 = 112 (pencils needed)
112/8 = 14 packages needed.
In how many ways can the letters in the word 'alaska' be arranged?
Answers
PLEASE HELP OVER 50 POINTS ONE QUESTION
8. Fill in the missing reasons for the algebraic proof below.
A:
B:
C:
Answers
b) addition property of equality
c) division property of equality
hope this helps
b. Subtraction property of equality
c. Division property of equality
A red kangaroo can cover 40 feet in 1 jump. How many feet can the red kangaroo cover in 12 jumps.
Answers
1. solve the proprotion k/5=5/125.
a) 1/25
b) 25
c) 5
d) 1/5
2. round the answer of 0.4x-0.2=2.5 to two decimal places.
a) -2.70
b) -6.75
c) -5.75
d) -3.25
3. what is the y-intercept of 4x-3y=-12?
a) -4
b) 3
c) -3
d) 4
Answers
First reduce 5/125.
5/125 = 1/25
Now you can cross multiply.
25k = 5
k = 5/25
k = 1/5
d) 1/5
2. round the answer of 0.4x-0.2=2.5 to two decimal places.
0.4x=2.7
x = 6.75
b) -6.75
3. what is the y-intercept of 4x-3y=-12?
The y-intercept is when x = 0.
4(0) - 3y = -12
-3y = -12
y = 4
d) 4
solve for x
5.1 x = 1.02
Answers
5.1(x)/5.1 = 1.02/5.1
x = 1.02/5.1
x = 0.2
hope this helps
What’s he hypotenuse, x, if ( 20, 21,x) is a Pythagorean triple?
Answers
Answer:
B) - 29
Step-by-step explanation:
Find the values of x and y.
a. x=44, y=66
b. x=46, y=44
c. x=90, y=44
d. x=90, y=46
Answers
m<BAC = 180 - 2(46) = 180 - 88
y = 88/2 = 44
x = 180 - (44+46) = 180 - 90 = 90
answer
c. x=90, y=44
Which temperature conversion is correct? °c = k - 273 k = 273 x °c k = °c - 273 °c = k + 273?
Answers
Answer: The formula to convert kelvin to degree celsius is:
°C=K-273
First option: °C=K-273
Find the value of a.
Answers
a = 18
6a - 2a = 83 - 11
4a = 72
a = 72/4
a = 18
Why is it incorrect
Answers
[tex]\bf \cfrac{|3v-1|}{5}\ge 4\implies |3v-1|\ge 20\implies \begin{cases} +(3v-1)\ge 20\\ -(3v-1)\ge 20 \end{cases}\\\\ -------------------------------\\\\ +(3v-1)\ge 20\implies 3v-1\ge 20\implies 3v\ge 21\implies v\ge \cfrac{21}{3} \\\\\\ \boxed{v\ge 7}\\\\ -------------------------------\\\\[/tex]
[tex]\bf -(3v-1)\ge 20\implies -3v+1\ge 20\implies -3v\ge 19 \\\\\\ \stackrel{\textit{negative division, the sign changes}}{v\le \cfrac{19}{-3}}\implies \boxed{v\le -\cfrac{19}{3}}\\\\ -------------------------------\\\\ 7\le v\le -\cfrac{19}{3}[/tex]