Answer:
B
Step-by-step explanation:
Mechanical Energy is the total energy of an object or group of objects due to large-scale motions and interactions. An example of that is when a basketball player shoots the ball.
A construction crew has repaired 1.37 miles of a highway. The total length of the highway to be repaired is 7.9. How many miles are left to be repaired?
Answer:
Part A: m+1.37=7.9
Part B: 6.53 miles are left to be repaired.
Step-by-step explanation:
Given,
Length of repaired part = 1.37 miles
Total length to be repaired = 7.9 miles
Miles left to be repaired = m
Part A:
Create an equation to show the relationship between the number of miles repaired and the number of miles left to be repaired, m.
Miles left to be repaired + Length of repaired part = Total length to be repaired
m+1.37=7.9
Part B
How many miles are left to be repaired?
Subtracting 1.37 from both sides
6.53 miles are left to be repaired.
Keywords: length, subtraction
Step-by-step explanation:
Write the slope intercept form of the equation of the line through the given point with the given slope through (-2,5),slope-3/2
How can properties of operations be used to add expressions?
What is the answer to: two minus a number x is no more than 0
Answer:
x > 2
General Formulas and Concepts:
Order of Operations: BPEMDASStep-by-step explanation:
Step 1: Translate
"Two" = 2
"minus" = subtraction
"a number x" = x
"is no more than" = <
"0" = 0
Step 2: Set up inequality
2 - x < 0
Step 3: Solve for x
Subtract 2 on both sides: -x < -2Divide both sides by -1: x > 2Here we see that any value larger than 2 would work as a solution of x.
F(x) = (4x–5)/6
Find the Inverse
Answer:
F^-1 (x) = 3x/2+5/4
Step-by-step explanation:
First, replace f(x) with y
Replace every x with a y and replace every y with an x .
Solve the equation from Step 2 for y
Replace y with f−1(x) f − 1 ( x )
Verify your work by checking that (f∘f−1)(x)=x ( f ∘ f − 1 ) ( x ) = x and (f−1∘f)(x)=x ( f − 1 ∘ f ) ( x ) = x are both true.
Hope this helps! Stay Safe!
3x(x-2)-x^2+4=0
Help
Answer:
x=2,1 solving with quadratic formula
Step-by-step explanation:
How MANY zeros does this graph have?
Answer:
3
Step-by-step explanation:
Of the students in Marci's school, 5/9 have a pet. Of the students who have a pet, 12/25 have a dog. What fraction of the students in the school have a dog?
Answer:
4 / 15
Step-by-step explanation:
Of all students ; 5/9 have a pets
Of the 5/9 who have a pet; 12 /25 have a dog
Fraction of the student in the school who have a dog;
12 /25 of fraction with pet
= 12 /25 of 5 /9
= 12 /25 * 5 / 9
= (12 * 5) / (25 * 9)
= 60 / 225
= 4 / 15
suppose 30% out of 500 students play an instrument describe one way to find 30% out of 500
Answer:
Multiply 500 by 0.30
Step-by-step explanation:
30% = 0.30 In Decimal Form
Multiply
500x0.30=150
150 Is 30% Of 500
what is the measure of ABC?
Answer:
Using exterior angle theorem, we can find the answer.
x+45+3x = 6x+5
4x+45 = 6x+5
45 = 2x+5
40 = 2x
x = 20
TO FIND <ABC, WE WILL NEED TO FIRST FIND THE EXTERIOR ANGLE.
6x+5
= 6(20)+5
= 120+5
= 125
m<ABC:
180-125 (REASON: linear pair)
= 55
5x + 5 + 3 = -4 + 7x + 7 - 3x
Answer:
[tex]5x + 7 = 3 + 4x \\ 5x - 4x = 3 - 7 \\ x = - 4[/tex]
i need to know where to graph it too
Step-by-step explanation:
y=2x+3
y=3x+3
(Use the elimination method)
y=2x+3(-3) = -6x-9
y=3x+3(2) = 6x+6
(subtract the new equations)
y= -3
(Now find X)
(plug in y in any equation and solve)
y=2x+3
(-3)=2x+3
0= 2x X= 0
or you can just graph the lines go to three on the Y axis put a point go up the y-axis two and over 1 and plot another point.
go to three on the y-axis and plot a point. go up three on the y-axis and over 1
3x+6y=30
What is the x intercept
Answer:
x=8
Step-by-step explanation:
My answer is correct because if I am checking my work-
Step 1: Subtract 6 from both sides.
3x+6−6=30−6
3x=24
Step 2: Divide both sides by 3.
3x
3
=
24
3
x=8
~boom~
I need help on the word problem with
hirhgkjsdbgkgbdk kbfsbjd jsbfbdh jabjdbshd jsjdsfkj
Answer: x>11
Step-by-step explanation:
Solve the following equation. Show your work. x 2 - 4 = 0
Answer:
-4 sorry if not right i had this question before
Step-by-step explanation:
Find the value of c that completes the square
x^2+2x+c
Please help me with how to do this, and show me. Thank you.
Answer:
The value of c that completes the square [tex]x^2+2x+c[/tex] is 1
Step-by-step explanation:
We need to find the value of c that completes the square [tex]x^2+2x+c[/tex]
The formula used will be: [tex]a^2+2ab+b^2=(a+b)^2[/tex]
In the question given the value c can be found by breaking the middle term. we are given 2x while the general formula is 2ab for middle term so,
2(x)(1) = 2x
so, c= 1
Solving:
[tex]x^2+2x+c\\=x^2+2(x)(1)+(1)^2-(1)^2\\=(x+1)^2-1[/tex]
So, the value of c that completes the square [tex]x^2+2x+c[/tex] is 1
Gavin needs $80 to buy a fish tank. He has saved $8 and plans to work as a babysitter to earn $9 per hour. Which inequality shows the minimum number of hours, n, that Gavin should work as a babysitter to earn enough to buy the fish tank?
Answer:
n>8Step-by-step explanation:
Step one:
given data
needed amount= $80
the amount already saved= $8
earnings per hour= $9
let the number of hours worked be n
and let y represent the total
the situation represented linearly is
y=mn+c
Step two:
substituting our data to find n
9n+8>80
9n>80-8
9n>72
divide both sides by 9
n>72/9
n>8
Therefore he must work a minimum of 8houees
The following lines: y=2/3(x) and y=-3/2(x) are...
O Intersectings=
O Neither
O Parallel
O Perpendicular
Need ASAP
Answer:
the answer to this question is parallel
please help me with this
Step-by-step explanation:
-4 = x - y ...1
4 = -x + y ...2
...1 + ...2
-4+4 = x-y +(-x+y)
0 = 0
and I don't know next lol
—16t^2 + 64t + 3
Please help as soon as possible 33 points if you do it!!
Answer:
51t^3
Step-by-step explanation:
64+3=67
67 +(-16)=51
t^2 +t= t^3
now you just add them up but they cant be combined because one is a number and the other a variable w an exponent so we just get 51t^3
Skylar owns a small business selling bagels. She knows that in the last week 80 customers paid cash, 7 customers used a debit card, and 42 customers used a credit card.
Based on these results, express the probability that the next customer will pay with a credit card as a decimal to the nearest hundredth.
Answer:
The probability that the next customer will pay with credit card is approximately 0.33
Step-by-step explanation:
The given parameters are;
The number of customers that paid cash = 80 customers
The number of customers that used a debit card = 7 customers
The number of customers that used a credit card = 42 customers
The total number of different payments made = 80 + 7 + 42 = 129 payment
Probability = The number of desired outcome/(The number of possible outcome)
The probability that the next customer will pay with credit card = (The number of customers that used a credit card)/(The total number of different payments made)
∴ The probability that the next customer will pay with credit card = 42/129 ≈ 0.33 to the nearest hundredth.
The following polynomial can be factored using the techniques of this lesson.
x² -36
A. True
B. False
Answer:
The correct answer for me was true
Step-by-step explanation:
Taryn is shopping for a Christmas tree. At Home Depot the one she likes is $149.00 and she has a 15% off coupon. At Lowe's the one she likes is $175.00 and she has a 20% off coupon. Which store has the better deal with their coupons? How much will she save if she gets the better deal?
Answer:
Step-by-step explanation:
At home depot
Price of Christmas tree = $149.00
Discount = 15%
Amount discounted = 15% of $149
Amount discounted = 15/100 * $149
Amount discounted = 15 * 1.49
Amount discounted = $22.35
Amount she paid = $149-$22.35
Amount she paid = $126.65
At Lowe's:
Price of Christmas tree = $175.00
Discount = 260%
Amount discounted = 20% of $175
Amount discounted = 20/100 * $175
Amount discounted = 0.2 * 175
Amount discounted = $35
Amount she paid = $175-$35
Amount she paid at Lowe's = $140
From the prices above, it can be seen that Home Depot has a better deal since the price after removing discount is lower than that of Lowe's.
Amount she will save will be $140 - $126.65 = $13.35
Can someone please help me with this question? " For what value of x makes the equation 4x-3.5 (2x-8) = 40 true"
Answer:
-4
Step-by-step explanation:
4x-3.5(2x-8)=40
4x-7x+28=40
-3x=40-28
-3x=12
x= -4
Which of the statements below translates the mathematical equation "4x + 5 = 21?
Step-by-step explanation:
4x + 5 = 21
4x+5-5=21-5
4x=16
Divide both side by 4 so that we can have the x
x=4
I need some help does anyone know this?
A circuit has a voltage of 500 volts and a resistance of 250 ohms. What is current? V = IR
Answer:
Step-by-step explanation: V= Voltage
I= Current
R= Resistance
Ohm's Law Mathematically expressed as: I= V/R or V= IR or R= V/I
V= 500
I= ?
R= 250
I= V/R
I= 500/250
I= 2 amps
Answer:
I know it know!!!!
Step-by-step explanation:
CAN SOMEONE PLEASE HELP ME ILL GIVE YOU GOOD RATING
Answer:
A
Step-by-step explanation:
The sides are the same so it's equilateral and it's acute because it's not more than 180degrees.
Hope this helps plz mark brainliest:D
Answer:
Your answer is a
Step-by-step explanation:
The little lines on the edge of the triangle mean the sides are equal and the angles are below 90 degrees so they are acute
The ratio of boys to girls in a class is 3:5. There are 40 students in the class. How many students are girls?
Step-by-step explanation:
3+5=8
40÷8=5
5x5=25 girls
5x3=15
Answer:
the number of girls are 16
Which two ratios are equivalent to 10 : 12
Answer: 10 divided by 2 is 5 12 divided by 2 is 6
Answer: 20:24 and 50:60
Step-by-step explanation:
7(y + 2) – (4y – 10) = 44 – 2y + 5
y = -10
Answer:
y=-8
Step-by-step explanation:
7(y + 2) – (4y – 10)
=7y+14-4y+10
=3y+24
3y=-24
y=-8
