Answer:
The simplified answer to that is -0.2x.
Hope this helps and if you could mark this as brainliest. Thanks!
Answer:
-0.2x
Step-by-step explanation:
If x is negative then,
-0.2(-2) = 0.4
Kelly solved an equation: H/ 4 - 11 = 13 using two inverse operations of adding 11 to both sides of the equations, and then dividing both sides by 4. Her answer is H = 6. What is her error?
Answer:
She should have multiplied by 4, not divided
Step-by-step explanation:
Given
[tex]\frac{H}{4}[/tex] - 11 = 13 ( add 11 to both sides ) ← correct
[tex]\frac{H}{4}[/tex] = 24 ( multiply both sides by 4 to clear the fraction )
H = 4 × 24 = 96
H is divided by 4, thus the inverse operation is to multiply
Please help need answer now!!
Answer: 5/2
Step-by-step explanation:
Using slope formula m = rise/run
Question 2
Which set of numbers represents the DOMAIN in the following graph?
{-2, -1,1,2,3)
{-3, -2, -1,0, 1, 2.3}
{0,1,2,3}
{-3, -2, -1,0, 2,5)
Please I am retaking a test and need the answer now I will offer points
Answer:
B.
Step-by-step explanation:
The domain is the lowest number to the highest number on the x-axis which has a point on the graph.
Write a quadratic equation in standard form with the given roots. Show your work to find the equation. -6, 5/2
Answer:
x^2 + 7/2 + 15 is the answer.
Step-by-step explanation:
Make the number that is equal to x be on the side of the x, then multiply those to values.
x = -6
x= 5/2
(x + 6)*(x - 5/2)
Now, distribute the x to the x and the negative 5/2, and add that to 6 distributed to x and negative 5/2. Simplify.
[tex]x^{2} + -\frac{5}{2}x + 6x + 15\\\\x^{2} + \frac{7}{2} + 15[/tex]
#teamtrees #WAP (Water And Plant)
Help me please I will give you the brainliest please ;( :[
Answer:
I'm not great with domain and range but for the 4th question the answer is b. and for the 5th part 1 the answer is a. and for part 2 the answer is d. i believe
A public swimming pool that holds 45,000 gallons of water is going to be drained for maintenance at a rate of 100 gallons per minute. The amount of water w (in gallons) in the pool after t minutes is given by the function w = 45,000 - 100t. Graph the function. Identify its domain and range. How much water is in the pool after 60 minutes? How many minutes will it take to empty the pool?
Answer: for the first question, after an hour there would be 39,000 gallons left and it would take 450 minutes to drain the pool
Step-by-step explanation:
You multiple the minutes with the rate or which the gallons are being drained and subtract it by the total amount,
Ps can I get the brainliest answer
We want to get the domain and range, graph, and analyze the given function.
We have the function:
w(t) = 45,000 - 100*t.
First, we want to get the domain and range of the function.
The domain is defined as the possible values of the input, in this case, is the time.
The smallest value of the time is t = 0, and the largest is the value of t such that the pool is empty, so we need to solve:
w(t) = 0 = 45,000 - 100*t
t = 45,000/100 = 450
Then the domain is D = [0, 450]
The range is the set of the possible outputs, the output represents the amount of water in the pool, it goes from full to empty, so the range is:
R = [0, 45,000]
The graph of the function can be seen below.
How much water is in the pool after 60 minutes?
Just replace t by 60 in the equation.
w(60) = 45,000 - 100*60 = 39,000
This is 39,000 gallons of water.
How many minutes will it take to empty the pool?
We already found that it takes 450 minutes.
If you want to learn more, you can read:
https://brainly.com/question/2263981
A. -2
B. -1/2
C. 1/2
D. 2
Mr. Scott likes to pose interesting problems to his Mathematics classes. Today,
he started with the expression 6^2020 + 7^2020. He stated that the expression was
not equivalent to 13^2020 and that he was not interested in the actual sum. His
question to his class and to you is, “What are the final two digits of the sum?
Answer:
The last two digits of 6²⁰²⁰ + 7²⁰²⁰ is 7, 7
Step-by-step explanation:
The given question is to find the value of the sum of two numbers 6²⁰²⁰ + 7²⁰²⁰, where, 6²⁰²⁰ + 7²⁰²⁰ ≠ 13²⁰²⁰
We have;
The last two digits of the powers of 6 are;
6¹ = 6, last two digits = 06
6² = 36, last two digits = 36
6³ = 216, last two digits = 16
6⁴ = 1,296, last two digits = 96
6⁵ = 7,776, last two digits = 76
6⁶ = 46,456, last two digits = 56
6⁷ = 279,936, last two digits = 36
6⁸ = 1,679,616, last two digits = 16
6⁹ = 10,077,696, last two digits = 96
6¹⁰ = 60,466,176, last two digits = 76
6¹¹ = 362,767,056, last two digits = 56
Therefore, the last two digits repeat itself every 5 times
For 6²⁰²⁰, the last two digits will be for the 2020/5 = 404 complete times, which will be 76
The last two digits of the powers of 7 are;
7¹ = 7, last two digits = 07
7² = 49, last two digits = 49
7³ = 343, last two digits = 43
7⁴ = 2,401, last two digits = 01
7⁵ = 16,807, last two digits = 07
7⁶ = 117,649, last two digits = 49
7⁷ = 823,543, last two digits = 43
7⁸ = 5,764,801, last two digits = 01
Therefore, the last two digits repeat itself every 4 times
For 7²⁰²⁰, the last two digits will be for the 2020/4 = 505 complete times, which will be 01
Therefore, the last two digits of 6²⁰²⁰ + 7²⁰²⁰ is 76 + 01 = 77, which is 7, 7
3. Solve for the letter y.
8y – 3) = 13
Answer:
y = 2
Step-by-step explanation:
(8y – 3) = 13
8y = 13 + 3
8y = 16
y = 2
Answer:
y = 2
Step-by-step explanation:
8y = 13 + 3
8y = 16
y = 2
good luck
2x4^7=
What is 2x4^7
Example: 2x5^7=2x=78,125
I need the answer please!!!!!!!
Solve: -2(x+4)-1=3(x-2)+4
Answer: x= -7/5 procedure: -2x-8-1=3x-6+4 -2x-9=3x-2 -2x-3x= -2+9 -5x= 7 answer: x= -7/5
Solve for x and then find the measure of angle, A.
Answer:
x = 8
The measure of angle A = 30°
Step-by-step explanation:
angle A and B are supplementary and their sum is 180°
6x - 18 + 14x + 38 = 180° add like terms
20x + 20 = 180
20x = 180 - 20
20x = 160 divide both sides by 20
x = 8 and the measure of angle A
6x - 18 ➡ 6 × 8 - 18 = 30°
Write the equation of the line that passes through the
point (6,4) and is parallel to 2x + 3y = 18.
The equation of the line that passes through the point (6,4) and is parallel to 2x + 3y = 18 is: y = -2/3x + 8
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Given that line passes throuthe gh the point (6,4) and is parallel to 2x + 3y = 18.
Parallel lines have the same slope
To Find slope of 2x + 3y = 18
Then Start by putting it in y = mx+b form;
Y = -2/3x + 18
Slope = -2/3x
Y = -2/3x + b
Now Plug in the points into equation
4 = -2/3(6) + b
4 = -4 + b
b = 8
Hence, the Equation: y = -2/3x + 8
Learn more about equations here;
https://brainly.com/question/25180086
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I need help on this question please?!
Answer:
A
Step-by-step explanation:
If you plug in 0 for w, the number of weeks, you'll see that s = 80. Meaning, at week 0 he ha 80
Write this ratio as a fraction in simplest form
140 centimeters to 300 centimeters
Answer choices:
A. 14/30
B. 4/7
C. 1/3
D. 7/15
Answer:
D
140/300 simplifies to 14/30 and that can be simplified even more to 7/15
What graph represents the equation y = -1/2x + 1?
Answer:
The answer to your question is A.
Step-by-step explanation:
Kayla has a older sister and a younger sister. her older sister is one year more than twice Kayla's age. Kayla's younger sister is three years younger than she is. the sum of their ages is 26. find Kayla's age
Answer:
x= kaylas age
older sister: 2x+1
younger sister: x-3
x+2x+1+x-3=26
4x-2=26
4x=28
x=7 years old
Step-by-step explanation:
I need the answer for all but the last one.
Answer:
2. 7 + 4
3. 21 - 27
4. 8 - 28
Step-by-step explanation:
2. 1 (7+4) = 1×7 + 1×4 = 7 + 4
3. 3 (7-9) = 3×7 - 3×9 = 21 - 27
4. 4 (2-7) = 4×2 - 4×7 = 8 - 28
hope this helps :)
Answer:
1. the answer is 7+4
2. the answer is 21-9.
3. the answer is 8-7.
Hope this helps, have a great day/night, and stay safe!
Every term is
a constant
a variable
an expression
HELP IMMA- FLIP IM DESPERATE
Answer:
The line that matches the equation y=2x+4 is line e.
8) Shawna had $20 to spend on six pencils. After buying them she had
$2. How much did each pencil cost?
It cost 2 dollers each.
PLZ ANSWER FIRST GETS BRAINLIEST + 20 POINTS
Answer:
x= -2, y = 5
Step-by-step explanation:
y = -4x-3
y = -2x+1
Set the two equations equal to each other
-4x-3 = -2x+1
Add 4x to each side
-4x-3 +4x = -2x+1+4x
-3 = 2x+1
Subtract 1 from each side
-3-1 = 2x+1-1
-4 =2x
Divide by 2
-4/2 = 2x/2
-2 =x
Now find y
y = -4x-3
y = -4(-2) -3
y = 8 -3
y =5
At a basketball game 64% were supporting the visiting team. If total number of people attending h the e game was 2000, how many people were supporters of the home team
Answer:
720
Step-by-step explanation:
0.64 x 2000 = 1280
2000 - 1280 = 720
No. of people supporting the home team out of 2000 people is 720.
What is the percentage?A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.
Given, At a basketball game, 64% were supporting the visiting team.
The percentage of people supporting the home team is
(100 - 64)% = 36%.
Now, Total number of people who came to watch is 2000.
∴ No. people supporting the home team is,
= (36/100)×2000.
= 36×20.
= 720 people.
learn more about percentages here :
https://brainly.com/question/24159063
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What is the range of the function graphed below?
What is the value of x?
Answer:
x = 5[tex]\sqrt{7}[/tex]
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
x² + 9² = 16²
x² + 81 = 256 ( subtract 81 from both sides )
x² = 175 ( take the square root of both sides )
x = [tex]\sqrt{175}[/tex] = 5[tex]\sqrt{7}[/tex] ≈ 13.23 units ( to 2 dec. places )
Answer:
x = 5√7
Step-by-step explanation:
By pythagoras theorem,
(hypotenuse)² = (altitude)² + (base)²
(hyp)² - (base)² = (alt)²
(16)² - (9)² = x²
256 - 81 = x²
x² = 175
x = √175
x = 5√7
hope this helps you!
after scoring a touchdown the billies linked up for the kickoff . the kicker kicked the football 60 yards deep into the end zone. the hang time on the ball was 8.5 seconds . what was the average speed of the ball
Answer:
7 seconds i think let me know if its wrong
Step-by-step explanation:
Identify the missing sides.
45°
20
:: 10
:: 20
1/2
:: 202
10/3
:: 20/3
Answer:
see explanation
Step-by-step explanation:
Use the sine ratio in the right triangle to find the hypotenuse h, and the exact value
sin45° = [tex]\frac{1}{\sqrt{2} }[/tex] , then
sin45° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{20}{h}[/tex] = [tex]\frac{1}{\sqrt{2} }[/tex] ( cross- multiply )
h = 20[tex]\sqrt{2}[/tex]
-----------------------------------------------------------------------------
Use the tangent ratio to find the horizontal leg x and tan45° = 1 , then
tan45° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{20}{x}[/tex] = 1 ( multiply both sides by x )
x = 20
96.90+2.04-24.30 Round your answer to the nearest second decimal
Answer:
74.64
Step-by-step explanation:
hope this helps :)
Answer:
74.60
Step-by-step explanation:
Hope this helps!
help im being timed what is the perimeter of this triangle?!
Answer:
AB + BC + CA
Step-by-step explanation:
12b-8 + 12b- 8 + 9b+8
33b - 8
Why is the product of negative reciprocals always -1?
Answer:
please check the explanation.
Step-by-step explanation:
Let suppose we have a number = n
n≠0The negative reciprocal of 'n' = -1/n
Taking the product of 'n' and its negative reciprocal '-1/n':
[tex]n\left(-\frac{1}{n}\right)[/tex]
remove parentheses: (-a) = -a
[tex]=-n\frac{1}{n}[/tex]
[tex]\mathrm{Multiply\:fractions}:\quad \:a\times \frac{b}{c}=\frac{a\:\times \:b}{c}[/tex]
[tex]=-\frac{1\times \:n}{n}[/tex]
[tex]\mathrm{Cancel\:the\:common\:factor:}\:n[/tex]
[tex]=-1[/tex]
Canceling the common factor (the number itself) will bring -1.
It proves that the multiplication of any number and its negative reciprocal will always yield -1.