Answers
Related Questions
Help plz. 4x^2-10x=84
Answers
Answer:
my brain just died sorry
Step-by-step explanation:
Answer:
x = 6
4x2−10x=84
Step 1: Subtract 84 from both sides.
4x2−10x−84=84−84
4x2−10x−84=0
Step 2: Factor left side of equation.
2(2x+7)(x−6)=0
Step 3: Set factors equal to 0.
2x+7=0 or x−6=0
x=
−7
2
or x=6
Help please!!!!! No fake answers
Answers
Answer: 13 itk
Step-by-step explanation:
Given the function defined in the table below, find the average rate of change, in
simplest form, of the function over the interval 0 < x < 2.
20
0
58
2
46
4
34
6
22
Answers
Answer:
- 0.4 (in decimal)
Step-by-step explanation:
Here "x" is input and "f(x)" is output
Average Rate of Change is = change in output / change in input
At x = 0, the output is 41
At x = 60, the output is 17
= (17-41)/(60-0) = -24/60 = -0.4
The production rate of a steel factory is declining due to old machinery. Over the last eight days production has dropped by 1.2 tons. What is the average rate of change in steel production over the eight days? Express the answer in tons per day.
A.
+1.2
B.
-1.2
C.
+0.15
D.
-0.15
Answers
Answer:
I think is A srry if im wrong :c
Step-by-step explanation:
Answer:
-0.15
we want to divide the amount of tons that was lost over the course of 8 days, in which the answer is 1.2 divided by 8 = 0.15, we then get -0.15 because they lost tons
I hope this helps
Kali runs 10 laps around a track each day each lap around the track is 400 m how many days will it take me to run a total of 12
Answers
Answer:
It will take 3 days.
Step-by-step explanation:
:)
8.1)? || What is the area of the reindeer barn in feet? 45 yards 25 yards er
Answers
Answer:
I think the answer is 20
Traci spent $1.19 on a pack of gum and $0.95 on lip balm.
Part A
What was the total amount Traci spent? Use the model to help you.
This image shows 3 hundredths grid next to each other. The first grid is entirely shaded in blue, second grid has 0.19 nineteen hundredths shaded in blue and remaining 0.81 eighty one hundredths shaded in yellow and third grid has 0.14 fourteen hundredths shaded in yellow and remaining are empty.
Enter your answer in the box.
$
00:00
Part B
Select words from the drop-down menus to explain how the model helps find the sum.
The number of full grids shaded is the number of . The number of small squares shaded in the grid is the number of .
Answers
She spent a total of $2.14.
Answer:
A: she spent a total of $2.14
and im sorry beb but i cant really help on part b but i tried for part a
BUT GOOD LUCK AND HAVE A WONDERFUL DAY
-Ary
An airplane is 4,000 feet above the ground. It begins to descend at a rate of 140 feet per minute. How many minutes will it take until the plane is 2,600 feet above the ground?
Answers
Answer:
10 minutes!
Step-by-step explanation:
140 * 10(min) = 1,400
4000 - 1,400 = 2,600 ft
so will take 10 minutes for the plane to descend 1,400 ft
Answer:
10 minutes
Step-by-step explanation:
in five minutes it will descend by 700 feet so multiply that by 2 you get 1400 and thats how much to add and thats 10 minutes so 10
Solve for X then Solve for angles 7X-40 and 2X+60
Answers
Answer:
X = 20
Angles are both equal to 100 degrees
Step-by-step explanation:
Assuming that 7x-40 = 2x +60
1. Order of Operations
2. 5x = 100
3. divide 100 by 5
4. x = 20
5. Plug 20 into both equations
6. 7(20) - 40 = 100
2(20) + 60 = 100
7. Both angles are equal to 100 degrees
What’s 123.45 + 67.891
Step By Step?
Answers
Answer:
123.45 + 67.891 = 191.341
Step-by-step explanation:
I don't know really know how to explain but I'll try to. So since 123.45 is the larger decimal so you put it first then below it you put 67.891.(not that it is necessary)
Then add a zero to 124.45. Meaning it will be 123.450. (It is the same number, we just have to add a zero there.)
Add then just add like you normally do. Just try doing it and you'll see.
A line segment with A B C at points
Answers
(50 Points)
Which equation combines with the given equation to form a system of equations with the solution x = 3 and y = 9?
x + 2y = 21
Answers
3 + 2(9) = 21
3 + 18 = 21
So I think the equation is 3 + 2(9) = 21
Answer:
It's option C.
Step-by-step explanation:
It's right on edmentum. Also just use substitution. Not that hard.
Write each decimal as a fraction or mixed number in simplest form 0.125
Answers
Answer:
1/8 as a fraction
Step-by-step explanation:
Answer: mixed number:0 1/8 or just 1/8
Step-by-step explanation:
Alexia spent 3 minutes working on each of her math problems and 4 minutes on each of her science problems. Her homework took her more than 60 minutes to complete. The boundary line for the inequality 3x + 4y > 60 is shown.
A graph shows number of math problems on the x-axis, from 0 to 20, and number of science problems on the y-axis, from 0 to 16. A dashed straight line has a negative slope and goes through (4, 12) and (12, 6).
Which statement could be true in this situation?
Alexia completed 8 math problems and 9 science problems.
Alexia completed 4 math problems and 6 science problems.
Alexia completed 20 math problems and 10 science problems.
Alexia completed no math problems and 15 science problems.
Answers
Answer:
C
Step-by-step explanation:
What is the product of 417.2 x 0.64?
Answers
Answer:
267.008
Step-by-step explanation:
Answer:
267.008
Step-by-step explanation:
what is 331.5 pages in 8.5 weeks simplified
Answers
9514 1404 393
Answer:
39 pages per week
Step-by-step explanation:
(331.5 pages)/(8.5 weeks) = 39 pages/week
Find the measure of each angle indicated. HELPPP PLEASE
Answers
Answer:
its a 90degree angle C:
Step-by-step explanation:
srry if this didn't help I can't rlly understand the question but I hope it did help!
2r+7=16
what does r =
Answers
Answer:
4.5
Step-by-step explanation:
2*4.5=9+7=16
The value of r in the given linear equation 2r + 7 =16 is 9/2.
What is linear equation in one variable?
A linear equation in one variable is an equation which has maximum of one variable of order 1. It is of the form ax + b =0, where x is the variable.
Solving Linear Equation in one variableFor solving an equation having one variable, the following steps are followed:
Step1: Using LCM, clear the fractions if any.Step2: Simplify both sides of the equation.Step 3: Isolate the variable.According to the given question
We have, a linear equation in variable r.
2r +7 =16
⇒ 2r + 7 -7 = 16 -7
⇒ 2r = 9
⇒ r = 9/2
Hence, the value of r is 9/2 for the given linear equation 2r + 7 = 16.
Learn more about Linear equation in one variable here:
https://brainly.com/question/11897796
#SPJ2
Simplify the following expression:
3x (7x-4)-(x-8)
Answers
Answer:
=21x2−13x+8
Step-by-step explanation:
=3x(7x−4)+−1(x−8)
=3x(7x−4)+−1x+(−1)(−8)
=3x(7x−4)+−x+8
Distribute:
=(3x)(7x)+(3x)(−4)+−x+8
=21x2+−12x+−x+8
Combine Like Terms:
=21x2+−12x+−x+8
=(21x2)+(−12x+−x)+(8)
=21x2+−13x+8
Answer:
[tex]=21x^{2} -13x+8[/tex]
Step-by-step explanation:
17,12,13,14 whats the middle
Answers
Answer:
6.75
Step-by-step explanation:
Put them in order from least to greatest
12, 13, 14, 17
Add the middle numbers together
13+14=27
Divide the amount of numbers in the set
27/4=6.75
Hope this helps. Have a nice day. May it be filled with joy and happiness. Please, stay safe and wash your hands. Happy Holidays.
Kay spends 250 min/wk exercising. Her ratio of time spent on aerobics to time spent on weight training is 3 to 2. How many minutes per week does she spend on aerobics? How many minutes per week does she spend on weight training?
Answers
Time spent on aerobics is 150 minutes per week and time spent on weight training is 100 minutes per week
Solution:
Given that,
Kay spends 250 min/wk exercising
Therefore,
Exercising = 250 minutes per week
Ratio of time spent on aerobics to time spent on weight training is 3 to 2
Aerobics : weight training = 3 : 2
Let the time spent on aerobics be 3x
Let the time spent on weight training be 2x
Thus,
3x + 2x = 250
5x = 250
x = 50
Thus,
Time spent on aerobics = 3x = 3(50) = 150
Time spent on weight training = 2x = 2(50) = 100
Thus, Time spent on aerobics is 150 minutes per week and time spent on weight training is 100 minutes per week
can someone please help :/ the people in my group are being mean,, ill mark you brainlest
Answers
Answer: 6.25 ounces. You're right
Step-by-step explanation:
43.75 ÷ 7 = 6.25
you can check by multiplying: 7 × 6.25 = 43.75
Which is the definition of a ray?
a part of a line that has one endpoint and extends indefinitely in one direction
the set of all points in a plane that are a given distance away from a given point
lines that lie in the same plane and do not intersect
a part of a line that has two endpoints
Answers
Answer:
a part of a line that has one endpoint and extends indefinitely in one direction
Step-by-step explanation:
a ray has one endpoint, then has an arrow going indefinitely in one direction.
Answer:
a
Step-by-step explanation:
WILL GIVE BRAINLIEST !!!! PLS ANSWER THE LINES CORRECTLY !!!
Answers
Answer:
wait whats the question so i can solve it
Step-by-step explanation:
Can someone help plz
Answers
Answer:
84g
Step-by-step explanation:
399÷19=21
21 x 4 = 84
Plz help i will mark branliest
Writing Equations From Two Points & Point-Slope Form
Answers
Answer:
problem #2:
y - 4 = 2 ( x + 1) , y - 1 = -1/3x ( x - 2)
problem #3:
slope: 2/3 point: -2, 4
slope: -3 point: -5, -1
Step-by-step explanation:
good luck!
If I was asked to think of a number and multiply it by 2, I could
write this algebraically as 2x.
Write the following algebraically, using x as your unknown.
"I think of a number, multiply it by 3, add 4 and square the result.
Answers
Answer:
[tex](3x + 4)^{2}[/tex]
Step-by-step explanation:
3 times the number they thought of:
3x
add 4:
3x + 4
square the result:
[tex](3x + 4)^{2}[/tex]
What was the initial price of a t-shirt if, after a 25% discount, it cost $12?
Answers
Reasoning:
16 x .75 = 12
PLEASE HELPP!! ASAPPP
Answers
Answer:
The answer to this question is A
Step-by-step explanation:
Answer: 400,000 gallons
Step-by-step explanation: First find the per minute is 4000 next multiply by 100 minutes and it is 400,000
Susan bought a pair of jeans for $20.95 and a shirt for $11.50. She paid with $40.00. How much was her change?
Answers
Answer:
$7.55
Step-by-step explanation:
First, add the prices to get the grand total.
$20.95 + $11.50 = $32.45
Now, subtract that from the total that was paid.
$40.00-$32.45 = $7.55