Answer:
f(2)= -2
g(2)= 12
Step-by-step explanation:
To solve this we use the substitution method. Since f(2) is your variable, we will plug the x-value of 2 into each equation
f(2)= 2(2)^2-5(2)
f(2)=8-10
f(2)= -2
If the same variable is used for both equations then g(x) would be g(2) as well leaving you with
g(x) = 3x^2
g(2)= 3(2)^2
g(2)=12
Help Please! A runner saved $25 when he purchased a pair of tennis shoes on sale. If the sale price was 35% off the regular price, what was the regular price of the tennis shoes?
F $71.43 G $60.00 H $51.23 J $8.75
Answer:
Option F: $71.43 is the correct answer.
Step-by-step explanation:
By the question we can observe that 35% of regular price is $25 so this information will be used to calculate the original price of the shoes.
Let
P be the price of shoes
and d be the discount
So
[tex]d = \$25\\P=?[/tex]
The discount is 35% of P so
[tex]d = 35\%\ of\ P\\25 = 0.35 * P\\P = \frac{25}{0.35}\\P = 71.42857...[/tex]
Rounding off to the nearest hundredth
The regular price is: $17.43
Hence, option F: $71.43 is the correct answer.
I need help with this problem a/3 + 5a/12 = 9/4
Answer:
= 3
/3 + 5a/12 = 9/4
Select all of the numbers that are greater than -5.
1.) 1.3
2.) -6
3.) -12
4.) -1
5.) -4
Answer:
1.3,-1, and -4
The points (5, n) and (4, -4) fall on a line with a slope of 7. What is the value of n?
n =
Submit
Work it out
Answer:
Step-by-step explanation:
The slope of a line can be calculated:
[tex]m = \frac{y_2-y_1}{x_2-x_1}\\[/tex]
We know that the slope is 7, so we want to solve for [tex]y_2[/tex]
[tex]\frac{n-(-4)}{5-4} = 7\\\frac{n+4}{1} = 7\\n+4 = 7\\n = 3[/tex]
what is the value of x
Umm there is no numbers
find the zeros of the polynomial x square-3 and verify the reationship between the zeros and the coefficient.
Answer:
√3, and -√3
Step-by-step explanation:
to find the zeros or roots of the polinomial x²-3 make it equal to zero and solve for x
x²-3=0 add 3 to both sides to isolate x
x² = 3 squareroot both sides
√x²= √3
x= ±√3 are the two zeros
Bryan’s monthly electric bill is determined by adding a flat administration fee to the product of the number of kilowatt hours of electricity used and the cost per kilowatt hour. When he uses 1,100 kilowatt hours of electricity, his bill is $113. When he uses 1,500 kilowatt hours of electricity, his bill is $153. What is the monthly administration fee? $
Answer:
3
Step-by-step explanation:
will mark branliest
Find the zeros of the function represented by the graph
answers (multiple choice)
- -4
- -3
- -2
- -1
- 0
- 1
- 2
- 3
- 4
- no solution
A biker cycles 9 miles in 2 3 of an hour.
a
Make a chart and fill it in to show how far he will bike if he maintains the same pace for 2 hours, 3 hours, 3.5 hours
Answer:
2 hours: 27 miles, 3 hours: 40.5 miles, 3.5 hours: 47.25 miles
Step-by-step explanation:
1.) If a hiker hikes 9 miles in 2/3 of an hour, he will hike 4.5 (Half of 2/3 is 1/3 and half of 9 is 4.5) miles in 1/3 of an hour and 13.5 miles per hour. (1/3 times 3 gives us a whole and 4.5 times 3 is 13.5)
2.) 2 hours: 13.5 * 2 = 27 miles
3.) 3 hours: 13.5 * 3 = 40.5 miles
4.) 3.5 hours: 13.5 * 3.5 = 47.25 miles
2 hours: 27 miles, 3 hours: 40.5 miles, 3.5 hours: 47.25 miles
Step-by-step explanation:
1.) If a hiker hikes 9 miles in 2/3 of an hour, he will hike 4.5 (Half of 2/3 is 1/3 and half of 9 is 4.5) miles in 1/3 of an hour and 13.5 miles per hour. (1/3 times 3 gives us a whole and 4.5 times 3 is 13.5)
2.) 2 hours: 13.5 * 2 = 27 miles
3.) 3 hours: 13.5 * 3 = 40.5 miles
4.) 3.5 hours: 13.5 * 3.5 = 47.25 miles
this is the guys above i just need points
PLEASE PLEASE PLEASE HELP I WILL GIVE XTRA POINTS AND BRAINALIST TO FIRST PERSON
Answer:
the answer is A because it has all numbers less than 15
Step-by-step explanation:
1(x-31)= 5(2+5)vvvvvb
Answer:
1x-31=35
1x=35+31
1x=66
x=66
the shopkeeper buys 100 oranges for $ 25, 50 kg of apples for $ 80 and 20 melons for $ 15. he sells all of these oranges, apples and melons at the prices shown in the table. calculate his percentage profit
Answer:
Table?
Step-by-step explanation:
I NEED HELL LIKE RIGHT NOW !!!
Which equation represents the graph?
Answer:
ummm im pretty sure its d
Step-by-step explanation:
Answer:
im pretty sure its last option y=2x
Step-by-step explanation:
on the graph it touches all even numbers
write (x+7)(x−2) as a sum
Answer:
x^2+5x-14
Step-by-step explanation:
you multiply both equations so that you get:
x^2-2x+7x-14
and then you simplify it to:
x^2+5x-14
If you found this helpful please give it a thanks
I would also appreciate it if you give me a brainliest
A recipe calls for ½ cup of flour to make 8 servings. How many cups of flour are needed to make 20 servings?
Answer:
20/8 = 2.5
1/2+1/2+1/2=
1 1/2
Step-by-step explanation:
Ur welcome:)
i need help ASAP ill mark u a brainiest i need an answer thats it
Answer:
I think it's 7.5 correct me if i'm wrong
Step-by-step explanation:
7.5 is half of 15
Use the midsegement theorem
Evaluate 6h when h=8h,
Answer:
48
Step-by-step explanation:
First you know that h=8h cancel out the h's and your left with 8. Next find out 6h is. We know that h is 8 so we can plug it in. Also when a number is right by a variable that means multiply example: 5d=5xd
6h=6xh
6x8
Now we multiply 6 times 8
Warning: If you don't know your multiplication facts you might want to either:
1. Count or add 8 six times 8+8+8+8+8+8. or add six 8 times.
2. or use a calculator :) Always helpful :D
The answer is: 48 Pls pick me for brainliest! Hope this helped! Have a great day!
What does the area of any shape tell us??
The area of a shape tells you the amount of space inside. The perimeter tells you how long the outline is. This is what the area and perimeter tell you.
Hope this helps you!
5. Cardi B is buying packs of gum from the grocery store. The table shows the total cost of the gum based on the number of packs bought. Which of the following represents the constant of proportionality?
Martin correctly answered 90% of the questions on a math test that contained exactly 40 questions. How many of the questions did he answer incorrectly? explain
A) 4
B) 10
C) 44
D) 90
Answer:
A. 4
Step-by-step explanation:
90% of 40 is = 36
40 - 36 = 4
Since he got 36 right out of 40, he got 4 wrong.
Help me solve this problem please
Answer:
sorry im just answering this cuz need points
Step-by-step explanation:
What's the opposite of -1.5 and 3/4?
Answer:
1.5
- 3/4
Step-by-step explanation:
To find the opposite of a number, you just have to either add or remove a negative sign.
- 1.5 is negative, so the opposite of negative 1.5 is positive 1.5 or 1.5
3/4 is positive, so the opposite of positive 3/4 is negative 3/4 or - 3/4
I Hope That This Helps! :)
Answer:
1.5
- 3/4
Step-by-step explanation: CREDIT TO GUY ABOVE!
6w-19+k when w=8 and k=2
Answer:
f
Step-by-step explanation:
f
Select all equations that can result from adding these two equations or subtracting one from the other.
x+y=12
3x-5y=4 PLZ
HELP QUICK I WILL GIVE BRAINLYIEST
Answer:
If the equation is in the form, ax + b = c, where x is the variable, you can solve the equation as before. First “undo” the addition and subtraction, and then “undo” the multiplication and division. Solve 3y + 2 = 11. Subtract 2 from both sides of the equation to get the term with the variable by itself.
Step-by-step explanation:
hope this helps, sorry if late
Which ratio is less than 15 Over 24
A. 1/2
B. 7/8
C. 19/24
D. 6/8
Answer:
A
Step-by-step explanation:
i need help please asap
Answer:
[tex]1.94[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
[tex]\frac{8.6 \cdot 0.082}{0.363}[/tex]
Step 2: Evaluate
Multiply: [tex]\frac{0.7052}{0.363}[/tex]Divide: [tex]1.9427[/tex]Round: [tex]1.94[/tex]Answer:
1.94
Step-by-step explanation:
First we multpiy the top
8.6 x 0.082 = 0.7052
0.7052/0.363= 1.942
=1.94
7/2x+1/2x=6+5/2x pls help
Answer:
4
Step-by-step explanation:
7/2+1/2=8/2
8/2=6=5/2
8/2-5/2=3/2
3/2=6
3/2=1.5
6/1.5=4
which equation, when solved, gives 8 for the value of x?
a. 5/2x + 7/2 = 3/4x + 14
b. 5/4x - 9 = 3/2x - 12
c. 5/4x - 2 = 3/2x - 4
d. 5/2x - 7 = 3/4x + 14
Answer: c. 5/4x - 2 = 3/2x - 4
Step-by-step explanation:Find the exact value using trigonomectric identities
Rectangle LMNO is rotated 90° clockwise around the origin to create rectangle L'M'N'O'. Which statement would best describe the relationship between points N and N'? They are equidistant from origin. They are midpoints of segment ON and segment O prime N prime. They are equidistant from point O. They are midpoints of segment LN and segment L prime N prime.
Answer:
A. They are equidistant from origin.
The correct statement for the relationship between points N and N' is,
⇒ They are equidistant from origin.
What is Translation?A transformation that occurs when a figure is moved from one location to another location without changing its size or shape is called translation.
Given that;
Rectangle LMNO is rotated 90° clockwise around the origin to create rectangle L'M'N'O'.
Now,
Since, Rectangle LMNO is rotated 90° clockwise around the origin to create rectangle L'M'N'O'.
Hence, We know that;
After rotation of 90° clockwise around the origin the shape are equidistance from the origin.
Thus, The relationship between points N and N' is,
⇒ They are equidistant from origin.
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brainliest!
what translation rule maps ABCD to A’B’C’D’ ?
The translation rule applied to the quadrilateral ABCD is T(1,0). The correct option is B.
What is translation?A translation in mathematics moves a shape left, right, up, or down but does not turn it. The translated (or image) shapes appear to be the same size as the original shape, indicating that they are congruent.
Given that the quadrilateral is translated on the x-y plane from ABCD to A'B'C'D'.
The translation applied to the coordinates of the quadrilateral will be one unit to the right and zero units up or down.
The translation will be written as,
T ( 1 , 0 )
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