2x (x + 4) -12x
if x=-3
Answer:
x=-3
Step-by-step explanation:
2x (x + 4) -12x
2×-3(-3+4)-12×-3
-6(1)+36
30
Does this table represent a function? Why or why not?
х
у
2
1
3
4
4
4
5
2
5
5
A. No, because two of the y-values are the same.
B. No, because one x-value corresponds to two different y-values.
C. Yes, because there is the same number of x-values as y-values.
D. Yes, because every x-value corresponds to exactly one y-value.
Answer: the answer is B
Step-by-step explanation:
What fraction is greter than 3 - 5
Answer:
4/5 is greater
Step-by-step explanation:
once again... drop the answer or ill drop ur ip :)
Answer:
-11x = -48 +15
x = (-48+15) / (-11)
x = -33 / -11
x= 3
hope that help
Step-by-step explanation:
4e88s45etds8sistzerse8rse85t8ss
Which graph shows a function that is increasing at a constant rate?
The graph showing a function increasing at a constant rate is graph B.
How to determine a increasing or decreasing function in an interval?In order to check the rate of rise of a function in an interval find the value of its derivative at all the points of that interval. If the values of derivatives are increasing then the function is increasing else it is decreasing.
The graphs A and B are given in the problem can be analysed one by one as follows,
Graph A,
In the interval [-∞,0], the slope of the function is decreasing.
And, in the interval [0,∞], the slope is increasing.
Thus, it is not increasing at a constant rate.
Graph B,
The function has the same slope in both the intervals [-∞,0] and [0,∞], which is positive.
It implies that the function is increasing at a constant rate.
Hence, the function shown in graph B is is increasing at a constant rate.
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solve for x 1/5(x-4)=-2
the answer is:
x = -6
A system of equations is shown below what is the x- value of the system of equations y= -4..... 2x-3y=8
Answer:
x= -2
Step-by-step explanation:
What is the answer –0.32 = g − 1.42
Answer:
g= -1.74
Hope this helped :)
PLEASE HELP WILL MARK BRAINLIEST PLZ PLZ PLEASE!! JUST THE TRAINFLE ONE
Answer:
yes
Step-by-step explanation:
we know because the triangle have the same angles
Answer:
no/yes
Step-by-step explanation:
Pls help me on this question ! 10 pts for you:)
If the cost of 4 pears and 2 peaches equals $1.00 and the cost of 2 pears and 3 peaches equals $0.70 how much does each pear and each peach cost
Answer:
20 p per pear 10p per peach
Step-by-step explanation:
Hope this helps
Answer:
1 pear costs 20 cents. 1 peach costs 10 cents.
Step-by-step explanation:
x represents pears
y represents peaches
4x + 2y = 1
2x + 3y = 0.7
multiply the second equation by -2 to elimate the x variable
(2x +3y = 0.7) -2 = -4x - 6y = -1.4
add the new equation to the first original one:
4x + 2y = 1
-4x - 6y = -1.4
-4y = -0.4. divide both sides by -4, y = 0.10
plug in y = 10, solve algebraically and get x = 0.20
Lastly, check your work:
4(0.20) + 2(0.10) = 1
2(0.20) + 3(0.10) = 0.7
Find the missing length.
8
7
C
✓ [?]
C =
Pythagorean Theorem: a2 + b2 = c2
Enter
Answer:
√113
Step-by-step explanation:
8*8 + 7*7 = c^2
64 + 49 = c^2
√113 =C
Put these numbers in order from least to greatest.
21, -21/40, -3/8, 21 3/40, 21 3/8
Answer:
-21/40, -3/8, 21, 21 3/8, 21 3/40,
Step-by-step explanation:
Find the 101th term in the arithmetic sequence -3,-5,-7,-9,-11
Select the expression equivalent to 4(– 7) + 8.
Answer:
-20
Step-by-step explanation:
According to order of operations, multiplication comes before addition.
4(– 7) + 8 =
-28 + 8 =
-20
An expression equivalent to 4(– 7) + 8 would be:
8 + 4(-7)
This is true because of the commutative property which states that a+b=b+a
Answer:
-20
Step-by-step explanation:
It is very simple!
4x-7= -28
-28+8=20
88 POINTS AND WILL GIVE BRAINLIEST ITS ALGEBRA 1 DUE NOW
What is the factored form of the expression?
6g^2+5g-6
and
What is the factored form of the expression?
9x^2-18x+9
Answer & Step-by-step explanation:
1. (3g−2) (2g+3)
2. 9(x−1)^2
Sorry if wrong ;(
Hope this helps ;)
Answer:
(3g-2)(2g+3)
9(x-1)^2
Hope this helps
Jeanie likes mixing leftover salad dressings together to make new dressings. She
combined 0.55 L of a 90% vinegar salad dressing with 0.45 L of another dressing to
make 1 L of salad dressing that is 60% vinegar. What percent of the second salad
dressing was vinegar?
Answer:
23%
im supposed to add more to this so i can submit this so here you go
i don’t understand.
online school is hard
Answer:
4. [tex]6\sqrt{3}[/tex]
6. [tex]\frac{2\sqrt{6} }{3}[/tex]
8. 23.78
What single percentage change is equivalent to a 18% increase followed by a 13% decrease?
Given:
18% increase followed by a 13% decrease.
To find:
The single percentage equivalent to a 18% increase followed by a 13% decrease.
Solution:
Let a number be 100.
If it is increased by 18% then the number becomes
[tex]Number=100+\dfrac{18}{100}\times 100[/tex]
[tex]=100+18[/tex]
[tex]=118[/tex]
Then, it is decreased by 13%.
[tex]Number=118-\dfrac{13}{100}\times 118[/tex]
[tex]=118-15.34[/tex]
[tex]=102.66[/tex]
New number is 102.66.
Now, the percentage change is
[tex]\%\text{ Change}=\dfrac{\text{New number - Initial number}}{\text{Initial number}}\times 100[/tex]
[tex]\%\text{ Change}=\dfrac{102.66-100}{100}\times 100[/tex]
[tex]\%\text{ Change}=\dfrac{2.66}{100}\times 100[/tex]
[tex]\%\text{ Change}=2.66\%[/tex]
Therefore, the Single percentage change is 2.66%.
Cameron is 5 ft tall and casts a 12 ft shadow. At the same time of day, a nearby
building casts a 78 ft shadow. How tall is the building? Hint: Make a sketch and label all
measurements first.
Answer:
the building would be 32.5 feet tall.
Step-by-step explanation:
please help if you know the answer
Answer:
The function that is incorrect is the third option, the option where the Domain's 0 is pointing to two Ranges.
Jamie drank 4 times as much juice as Brodie. Jamie drank 280 milliliters of juice.How much did Brodie drink ?
Answer:
Brodie drank 70 milliliters
Step-by-step explanation:
280 divided by 4 equals 70
To check: 70 x 4 = 280
Hence, the Brodie drink [tex]280[/tex] milliliters.
What is the simplification?
Simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.
Here given that,
Jamie drank four times as much juice as Brodie. Jamie drank [tex]280[/tex]milliliters of juice.
So,
[tex]\frac{280}{4}=70[/tex] millilitres
And, Jamie drank four times as much juice as Brodie
[tex]70[/tex] x [tex]4[/tex] = [tex]280[/tex]
Hence, the Brodie drink [tex]280[/tex] milliliters.
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A circle has a radius of 4 in. What is the circumference of the circle? it is not 25.13 inches.
Answer:
Radius: 1.128 Area: 4
Hope this helps :)
Change 8.75% to a decimal.
Answer: 0.0875
Step-by-step explanation: you divide the number by 100
PLS IM SO CONFUSLEZZZD
2+2
what is 5020 divide 110
Answer:
45.6363636 or 45.6
Step-by-step explanation:
Answer:
answer:it is 45.636
Manny begins the summer with $200
Answer:
1200
Step-by-step explanation:
Plz, help I have no clue how to solve this.
Answer: Create equations. Top length=Bottom length
Left side = right side.
Combine like terms and rewrite the equations.
Use the new equations to create a system of equations to solve for x and y.
Once you have x and y, you can substitute those in the expressions for the lengths of the parallelogram.
You should end up with top and bottom lengths of 10. The sides are 9.
Step-by-step explanation:
3x-5 = 18 -2y . Rewrite as 3x + 2y = 23
x+4 = 21 -3y Rewrite as x + 3y = 17
The system of equations is
3x + 2y = 23 and x + 3y = 17 . To solve by substitution, multiply the second equation by -3 It becomes -3x-9y= -51 Add the equations so the x terms cancel. Solve for y
3x + 2y = 23
-3x - 9y = -51
0 -7y = - 28 Divide both sides by -7. y = 4
Substitute 4 for y, solve for x
x + 3(4) = 17
x + 12 = 17 . Subtract 12 from both sides x = 5
Substitute the values of x and y in the expressions
Top: 3x-5 is 3(5) -5 becomes 10
Bottom: 18 -2y is 18 - 2(4) becomes 10
Left: x +4 is (5) + 4 becomes 9
Right: 21 - 3y is 12 -3(4) becomes 9
A Chrome book is on sale for 30 % off the original price plus
10% sales tax. If the Chrome book originally price is $360.
What is the final sale price that you will pay for the Chrome
book?
Answer:
288
Step-by-step explanation:
because 20 percent off is 252 and adding the sales tax which is 36 so you get 288
Choose the linear inequality that describes the graph. The gray area represents the shaded region.
4x – 6y ≥ 10
4x + 6y ≤ 10
4x + 6y ≥ –10
4x + 6y ≥ 10
please help !
Answer:
4x+6y<=10
Step-by-step explanation:
The linear inequality that describes the graph is 4x+ 6y ≤ 10.
What is Inequality?Mathematical expressions with inequalities are those in which the two sides are not equal. Contrary to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.
As, The bold straight line passes through the points (1,1) and (-2, 3).
so, equation of line will be
(y- 1) = (3-1)/ (-2-1) (x-1)
y-1 = 2 / (-3) (x-1)
-3y + 3 = 2x - 2
-3y -2x = -5
If we multiply by 2 both side we get
-6y - 4x = -10
4x+ 6y= 10
So, the required inequality for gray area is 4x+ 6y ≤ 10.
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