Answer:
y = 2x^2 + 4x - 2
Step-by-step explanation:
y=2(x+1)^(2)-4 is in vertex form. We want the same equation in standard form, which looks like y = ax^2 + bx + c.
Perform the indicated multiplication (squaring of x + 1):
y = 2(x^2 + 2x + 1) - 4, or
y = 2x^2 + 4x + 2 - 4, or
y = 2x^2 + 4x - 2 This is in the standard form of a quadatic.
Help please I do not get it
f(1) = -3
f(n) = 2. f(n − 1) +1
f(2)=
f ( 2 ) = 2 × f ( 2 - 1 ) + 1
f ( 2 ) = 2 × f ( 1 ) + 1
f ( 2 ) = 2 × ( - 3 ) + 1
f ( 2 ) = - 6 + 1
f ( 2 ) = - 5
Identify the percent of change as an increase or a decrease. Then find the percent of change. Round to the nearest tenth of a percent, if necessary: 120 pounds to 180 pounds
Answer:
50%
Step-by-step explanation:
We need to find the percent change from 120 pounds to 180 pounds. We can find it as follows :
[tex]\%=\dfrac{180-120}{120}\times 100\\\\=\dfrac{60}{120}\times 100\\\\=50\%[/tex]
So, the percent change is equal to 50%.
The area of a rectangle is 12x^2 - 8x - 15. The width is (2x - 3). What is the length of the
rectangle?
Answer:
6x+5 us the length of the rectangle
Step-by-step explanation:
If A = 12x² - 8x - 15 and w = 2x - 3, then..
l = (12x² - 8x - 15)/(2x - 3)
= (2x - 3)(6x + 5)/(2x - 3)
= 6x + 5 cm
A culture of bacteria has an initial population of 970 bacteria and doubles every 7
hours. Using the formula P+ = Po.2, where P is the population after t hours, Po
is the initial population, t is the time in hours and d is the doubling time, what is the
population of bacteria in the culture after 2 hours, to the nearest whole number?
Answer:1182.4432≈1182
Step-by-step explanation:
The population of bacteria in the culture after 2 hours is approximately 1,248.
What is an equation?An equation contains one or more terms with variables connected by an equal sign.
Example:
2x + 4y = 9 is an equation.
2x = 8 is an equation.
We have,
Given that the initial population of bacteria is [tex]P_0[/tex] = 970, and the doubling time is d = 7 hours.
Using the formula,
P+ = [tex]P_0[/tex] x [tex]2^{t/d)[/tex]
We can calculate the population of bacteria after 2 hours as follows.
P+ = 970 x [tex]2^{2/7}[/tex]
= 1,248.4
Rounding this to the nearest whole number, the population of bacteria in the culture after 2 hours is approximately 1,248.
Thus,
The population of bacteria in the culture after 2 hours is approximately 1,248.
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Suppose a cone and a cylinder both have congruent circular bases and congruent heights. How may times larger is the cylinder than the cone?
Answer:
Naruto, the cylinder's volume is 3 times that of the cone.
Step-by-step explanation:
Cone volume = (1/3)πr2h
Cylinder volume = πr2h
So, the cylinder's volume is 3 times that of the cone.
4x-7+8x-3-19x
Help me out please I need an answer !!
Answer:
Answer is -7x - 10
Step-by-step explanation:
First you would want to subtract the numbers here it is
4x -7 + 8x -3 - 19x
4x - 10 + 8x - 19x
Then you would want to combine the terms
and the answer is
17x - 10
David invested $68,000 in an account paying an interest rate of 5.5% compounded daily. Assuming no deposits or withdrawals are made, how long would it take, to the nearest tenth of a year, for the value of the account to reach $93,000?
Answer:
5.7
Step-by-step explanation:
I took the bullet and got the question wrong so I shall provide the answer
You can buy a 6 back of Gatorade for $4.99 or you can buy 1 for $0.89. Which is
the better buy?
6 for $4.99
1 for $0.89
Answer: 6 for $4.99
Step-by-step explanation: You would be better off buying 6 for $4.99 because the unit rate of each bottle is cheaper. You can find the unit rate by dividing 4.99 by 6 which equals .83
If you were to buy 6 for .89 you would end up spending $5.34.
Hope this helps :)
Answer:
6 for 4.99
Step-by-step explanation:
.89 x 6= 5.34
The college athletic director recorded the highest noise levels reached during 7 sporting events. The highs were:
88 decibels 88 decibels 88 decibels 87 decibels 84 decibels 97 decibels 95 decibels
What was the mean noise level recorded? Round your answer to the nearest whole number.
Answer:
90
Step-by-step explanation:
Mean:
(88 + 88 + 88 + 87 + 84 + 97 + 95)/7
627/7
89.57
90
Given the following triangles are congruent, use the given information to complete the congruence statement. (Type your answer in using capital letters and make sure they are in the appropriate
order).
Answer:
VWU
Step-by-step explanation: just match the side.
find the value of x of triangle
Answer:
By the math, x = 10°
Here's my issue though, the top angle is x - 15°. That would be an angle of -5° which is impossible.
Step-by-step explanation:
x - 15 + 2x + 25 + 180 - 4x = 180°
combine like terms:
3x - 4x + 190 = 180°
-x = -10°
x = 10°
simplify.
#1.
9^2-1
___________
4+6^2-10
#2.
10(19-4^2)
_______________
7+3^2-1
Step-by-step explanation:
#1
9^2-1
(9×9)-1
81-1
80
#2
10(19-4^2)
10(19-16)
10(3)
30
Answer:
1. 80
2. 30
3. 15
Step-by-step explanation:
1. 9^2=81 ...81-1=80
2. 4^2= 16 so..10(19-16)-> 10(3)= 30
3. 3^2= 9 so... 7+9-1-> 7+9=16 16-1=15
Given the quadratic sequence: 2;3; 10 ; 23 ;...
2.1.1 Write down the next term of the sequence.
2.1.2 Determine the n'h term of the sequence.
2.1.3
Calculate the 20th term of the sequence.
Given the arithmetic sequence: 35; 28; 21 ;...
Calculate which term of the sequence will have a value of -140.
Step-by-step explanation:
2.1.1 ) next term is 42
2.1.2)3n^2 - 8n + 7
2.1.3)1047
the 26th term is = -140
write an equation for the number 40 is 5 times as many as 8 PLEASE HURRY????
Answer:
40=5×8
Step-by-step explanation:
I think, hope this helps
The equation for the number 40 is 5 times as many as 8 is; 40=5×8
What does it mean to solve an equation?An equation represents equality of two or more mathematical expression.
A mathematical equation is a statement with two equal sides and an equal sign in between. An equation is, for instance, 4 + 6 = 10. Both 4 + 6 and 10 can be seen on the left and right sides of the equal sign, respectively.
Solutions to an equation are those values of the variables involved in that equation for which the equation is true.
We are given that the number 40 is 5 times as many as 8
40 is 5 times as many as 8 means
5×8 = 40
Then the equation will be;
40=5×8
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g+60=6
help please this doesnt make sens to me.
????
[tex] \mathbb{ECUACION}[/tex]
An equation is a mathematical equality between two expressions, called members and separated by the equal sign, in which known elements and unknown or unknown data appear, related through mathematical operations.Solution:
We are going to solve the equation step by step.
[tex] \bold{g + 60 = 6}[/tex]
Step 1: Subtract 60 from both sides.
[tex] \bold{g + 60 - 60 = 6 - 60}[/tex]
[tex]⟹ \bold{g = - 54}[/tex]
----------------------------------------------------------------------------------------------
[tex] \bold{BRAINLYMENTALMENTE}[/tex]
Yo pls help me out, the question is on the picture.
ill mark brainliest if its correct. NO LINKS!
Answer:
x = 5.5
Step-by-step explanation:
SOH CAH TOA(opposite/adjacent)
tan 29° = x/10
=> x = tan 29° × 10
=> x ≈ 5.5
The area of a poster board is (x2 + 3x − 10) square inches. Find the dimensions of the poster board if x = 16. The dimensions of the poster board are
Answer:
16x2+16x3-10=w
32+48-10
80-10=
70
A VERTICAL line passes through the point (4, 5). Find an equation for this line.
A)
X = 4
B)
y = 5
C)
y = 4
D)
y = 4x + 5
Answer:
A
Step-by-step explanation:
The equation of a vertical line parallel to the y- axis is
x = c
where c is the value of the x- coordinates the line passes through.
The line passes through (4, 5 ) with x- coordinate 4 , then
x = 4 ← equation of vertical line → A
the shape of the toy is a cylinder of radius 5 cm and height 8 cm on top of a hemisphere of radius 5cm calculate the volume of a toy
Answer:
889.66 cm^3
Step-by-step explanation:
here's your solution
=> radius of cylinder = 5 cm
=> height of cylinder => 8 cm
=> radius of hemisphere = 5 cm
=> volume of toy = ( vol of cylinder + vol of hemisphere)
=> volume of cylinder = πr^2h
=> putting value , = 22/7*5*5*8
=> volume = 628 cm^3
=> volume of hemisphere = 2/3πr^3
=> putting value , = 2/3*22/7*5^3
=> volume of hemisphere = 261.66 cm^3
=> volume of toy = (628 + 261.66)cm^3
=> volume = 889.66 cm^3
hope it helps
can yu write a linear equation for this
Answer:
Step-by-step explanation:
Answer: 0.5x + 5 = 20Please mark as brainliest for future answers :)
Answer:20
Step-by-step explanation:
PLZ HELP I NEED TO TURN THIS IN TODAY
Answer:
The top one
Step-by-step explanation:
Just count how many are in each catagory
Answer:
The First One
Step-by-step explanation:
Don't Ask How Long It Took
Rosa is making a game board that is
16 inches by 24 inches. She wants to
use square tiles. What is the largest
tile she can use?
Please show working
Answer:
8" by 8"
Six of those will fit on the board
Step-by-step explanation:
Answer:
The largest tile she can use is a 8 inches by 8 inches tile.
Step-by-step explanation:
Rosa is making a game board that is 16 inches by 24 inches.
She wants to use square tiles.
The area of the game board (area of a rectangle) is equal to length times width.
∴ Area = 16 inches × 24 inches = 384 square inches
The prime factors of 384 are; 2^7 × 3
We can put it as;
2^6 × 6 = 384
The square root of 2^6 is 2^3 = 8
So Rosa will need six square tiles of 8 inches by 8 inches each.
Hence the largest tile she can use is a 8 inches by 8 inches tile.
1. Combine Like Terms: 1 + 5v + v
Answer:
1+6v
Step-by-step explanation:
1+5v+v
1+6v add the 5v and v
PLEASE HELP!!!
which inequality is shown on the graph below
Answer:
do it yourself
Step-by-step explanation:
i ain't your slave
Um so my was asking me a question and wants me to explain it to her. She said this and I don't know what she said next. Could you "fill in the blank". Thanks!
"when you are dealing with absolute values got to be really careful about what your final step looks like.
So when you isolate your absolute value bars, if you have the absolute value of something we know this can be positive is greater than a negative number your golden cuz a positive number is always going to be greater than a negative number. But if you end up with an absolute value of something and it's less than a negative number that's never going to be true because _______________
"
Absolute value is the distance from zero, it doesnt matter if its -58 or 58 its absolute value is always going to be positive, so if you have a negative just get rid of that negative sign. Absolute value makes it all positive -492= 492 in absolute value.
Emily liked to shoot baskets. She took 50 shots a day and kept track of how many she made for 10 days. Here are the number of shots she made: 22, 25, 27, 37, 32,
19, 25, 45, 32, 33
Answer:
if I have to calculate the average then it's a
add all of them and divide by 10
answer is 29.7
What is the solution to the equation p + 7.2 = 11?
p = 3.2
p = 3.8
p = 4.8
p = 18.2
Answer:
p = 3.8
Step-by-step explanation:
11 - 7.2 = 3.8
Answer:
p = 3.8
Step-by-step explanation:
We have the equation p + 7.2 = 11 and are asked to solve for "p".
To do so, all we need to do is isolate p :
p + 7.2 = 11
Subtract 7.2 from both sides :
p = 3.8
Which table does not represent a relationship that is directly proportional? Btw i clicked a by accident
Answer:
The selected option
Step-by-step explanation:
Coincidentally, you answered correctly.
From the values of 3 and five, we can assume that the function of the table is Y=x+2.
But if we move to the next value pairs, that function is false.
10=6+2 that isn't correct.
If you apply this to all the pairs in the table you will find that there is not a function that represents the values given. Therefore, the first option is correct.
find the height of the cliff.