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Answer:
f(-2) = -12
Step-by-step explanation:
Put -2 where x is and do the arithmetic.
[tex]f(x)=-3x^2\\\\f(-2)=-3(-2)^2=-3\cdot4=\boxed{-12}[/tex]
Scientific notation is written in the form a*10^n. What must be true about the a value?
It can't be longer than 2 digits
It has to be greater than 100
It must be positive
It has to be a single digit between 1 and 10
Answer:
It has to be a single digit between 1 and 10
Marie added 3 1/8 cup of all-purpose flour and 1/4 cup of whole wheat flour in the cake. She added 1/3 cup of sugar at also, how much flour she added in the cake ?
Answer:
3 [tex]\frac{3}{8}[/tex]
Step-by-step explanation:
Maria only combined two different types of flour to the cake. Therefore, in order to find the total amount of flour she added we need to add these measurements together. First, we need to find a common denominator. We do this by multiplying the numerator and denominator of the amount of whole wheat flour by 2. This would be the easiest way of giving us the same denominator as the measurement for the all-purpose flour.
[tex]\frac{1 * 2}{4 * 2}[/tex] = [tex]\frac{2}{8}[/tex]
Now that we have the same denominators we can simply add both measurements together
3 [tex]\frac{1}{8}[/tex] + [tex]\frac{2}{8}[/tex] = 3 [tex]\frac{3}{8}[/tex]
1. If the point (-5, -3) is translated 4 units to the right and 3 units down, what are the coordinates
of the new point? Write the algebraic expression that represents the translation.
Answer:
(-5 + 4, -3 - 3)
Step-by-step explanation:
"4 units to the right" requires ADDING 4 to the x-coordinate of (-5, -3):
(-5 + 4, -3).
"3 units down" requires SUBTRACTING 3 from the y-coordinate:
(-5 + 4, -3 - 3), or (if simplified) (-1, -6)
whats 183.47 to the nearest 10th
Answer:
183.5
Step-by-step explanation:
To round 183.47 to the nearest tenth consider the hundredths’ value of 183.47, which is 7 and equal or more than 5. Therefore, the tenths value of 183.47 increases by 1 to 5.
183.47 rounded to the nearest tenth = 183.5
i need help please i would do anything
The answer is
Step-by-step explanation:
Since there is 3 even numbers and 3 odd numbers it makes a 50/50 chance when spun once. If you spin it 60 times you will have spun it 30 times theoretically.
Which of these best describes the location of (9,0) on a coordinate grid? Question 12 options: In Quadrant I In Quadrant II On the x-axis On the y-axis
Help quick!
Step-by-step explanation:
Quadrant I: Both values are positive.
Quadrant II: x-value is -ve, y-value is +ve.
On the x-axis: y-value is 0.
On the y-axis: x-value is 0.
The point (9, 0) has a y-value of 0.
=> It lies on the x-axis.
can anyone answer -9(x-8) and show work ?
Answer:
-9x + 72
Step-by-step explanation:
1. -9(x-8)
2. distribute the 9. --> -9x + 72
What are the zeros of the function (x) = x2 – 3x+2?
Step-by-step explanation:
f(x) = x² - 3x + 2 = (x - 2)(x - 1).
When f(x) = 0, (x - 2)(x - 1) = 0.
=> x = 2 or x = 1.
Supposed U = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1} is the universal set and K = {-10, -8, -6, -4, -2}. What is K’?
Answer:
-9
Step-by-step explanation:
-9,
Find the zero of the function /(x) = 5x-3.
Answer:
3/5
Step-by-step explanation:
Set it equal to 0
5x-3=0
Then solve for x
5x=3
x=3/5
Check
5(3/5) - 3
3-3
0
Find the sum:
The blanks r subtraction signs
Answer:
[tex]8x^2+6x-17[/tex]
Step-by-step explanation:
All that we have to do is add the 3 and 5 so it's basically like combining like terms. So the first blank is 8.
Now we add the x and the 5x which is 6x, all we're doing is adding the x's.
Now we do add the two negative 10 and 7. So what is -10 + - 7 we add them normally but we'll still have the negative in front of them. So it's -17.
Please help!!!
Composition of functions~
Answer:
option D
Step-by-step explanation:
First you must find g(n) given that n is -3n:
g(-3n) = -3n - 1
Then plug that in f(n) as the new n:
f(n) 3( -3n - 1) + 5
= -9n -3 + 5
= -9n + 2
So option D
Someone good at math pls help me:)
Answer:
B) (-2,6)
Step-by-step explanation:
Where do the two lines intersect? That is where the solution is.
Hope this helps
Answer:
I believe the answer B ( I think)
ken eats 4 plums each day. How many plums would he eat in TWO weeks?
Answer:
56 (plums)
Step-by-step explanation:
There's 7 days a week, 14 in two weeks, so if Ken eats 4 plums each day, he will eat 14 times that in two weeks.
x = 4 × 14
x = 56
Answer:
56
Step-by-step explanation:
4 plums a day, with 7 days in a week. 4*7=28 plums a week. He eats 4 plums a day for two weeks, so we multiply 28 by 2. 28*2=56.
-4x - 2 (12x - 12) = 10 (12 - 2x) for x
Show work/ say the steps plz.
Nasser is following this recipe to make flapjacks.
Nasser uses 1.4 kg of sugar.
How many flapjacks is Nasser making?
Recipe: Makes 12 flapjacks
140 g margarine
175 g sugar
200 ml syrup
200 g oats
40 g sultanas
Answer:
96
Step-by-step explanation:
12 flapjacks=175g sugar
0.06857142857 flapjacks= 1g sugar
1400g sugar
96flapjacks=1400g sugar
i hope i helped<3
Answer:
96
Step-by-step explanation:
You can Trust me cuz our work is same
Isaac invested $77,000 in an account paying an interest rate of 4.6% compounded continuously. Assuming no deposits or withdrawals are made, how much money, to the nearest cent, would be in the account after 12 years?
Answer:
133,727.67
Step-by-step explanation:
the other one is wrong
also have a nice day
The amount of the money to the nearest cent, would be in the account after 12 years is $133,307.18.
Calculation of the amount:Since the invested amount is $77,000
The rate of interest is 4.6% compounded continuously
And, the number of years is 12
So,
= $77,000 * (1 + 0.046/12)^48
= $133,307.18
hence, The amount of the money to the nearest cent, would be in the account after 12 years is $133,307.18.
Learn more about amount here: https://brainly.com/question/24338143
4x^2 - 12x - 3
what would the answer be if x = 7
Answer:
= 3 /2 ± √ 3
Step-by-step explanation:
The 2th term of The A.P is 7 and 9th term is 28, Find The comon difference and The first term.
help me please
Answer:
difference = 3, first term = 4
Step-by-step explanation:
given, a2 = 7
a9 = 28
wkt, a2 = a + d = 7
a9 = a + 8d = 28
- 7d = - 21
therefore d = 3
and wkt, d = a2 - a
a = 7 - 3 = 4
HOPE THIS HELPS
Which of the following graphs correctly shows the image of the figure after a translation 4 units left and 3 units down?
Answer:
Option 2
Step-by-step explanation:
You can find the answer by just counting to the left and down
Which triangles are similar?
Answer:
A and c are similar except C is bigger than as so the scaling has gotten higher, so the answer is D
Step-by-step explanation:
The equation of the line graphed below could be which of the following?
Please help ASAP
Answer:
4.
Step-by-step explanation:
First, you have to decide whether the slope is negative or positive. Since the line is going diagonally upward, it is positive.
That means the answer has to be either 3 or 4.
Next, you have to decide whether the y-intercept is negative or positive, on the graph, you can see that it is positive.
Answer choice 4 is the only equation where both the slope and the y-intercept are positive, so it is the answer.
What's the area of the quarter circle if the diameter is 3 inches?
Answer:
Area of the full circle(A)= pi*d^2/4
A=3.143*3^2/4
A=7.07in^2
Area of the Quarter of the circle(B)
B=1/4A
B=1.77in^2
Step-by-step explanation:
can someone help me on this?!
9514 1404 393
Answer:
D. 3 to 4
Step-by-step explanation:
The ratio ...
blueberries : strawberries = (1/2) : (2/3)
can be changed to a ratio of integer by multiplying by the least common denominator: 6.
= 6(1/2) : 6(2/3) = 3 : 4
Can someone help me please?
Answer:
It is growing by five! have a good day
Step-by-step explanation:
Answer:
it.is growing by 5.??????????????????????? ????????????????
2x+3y=3
y=8-3x
The value of y is substituted back into the first equation what is the resulting equation?
what is the value of x?
what is the value of y?
Answer:
2x + 3 (8 - 3x) = 3
x = 3
y = -1
Step-by-step explanation:
pretty sure thats right! have a great day!
I need help it’s urgent please I would really appreciate it
Answer:
The entire race is 26.20 miles long.
Step-by-step explanation:
Given that:
Sam is 18.34 miles in the race.
This length represents the 70% of the entire length of the race.
Let,
x be the total length of the race.
70% of x = 18.34
[tex]\frac{70}{100}x=18.34\\[/tex]
0.7x = 18.34
Dividing both sides by 0.7
[tex]\frac{0.7x}{0.7}=\frac{18.34}{0.7}\\x=26.20[/tex]
Hence,
The entire race is 26.20 miles long.
HELP PLEASE!!! NOW :(
When plotting points on the coordinate plane below, which point would lie on the x-axis?
Answer:
If you plot the points you can easily find the answer. (X,Y) The x-axis is the horizontal line and the y-axis is the vertical line.
Step-by-step explanation:
Mark me as brainlist
Italic
Help I need help this is a question I don’t understand
Answer:
Triangle ADB is an isosceles triangle that has been split in half. Isosceles triangles are triangles whose base angles are equal and has 2 equal side lengths. For example triangle ADB has AD and DB equal along with m<a and m<b equal
Therefore, if we split this triangle into two half's then they are congruent (the same)
Right triangles have a 90° angle, usually marked by a square
this means that m<DCA is 90°;AD=DB=14m; CB=AC=11; AB=AC+CB=22
Step-by-step explanation: