Answer:
48
Step-by-step explanation:
16= 2×2×2×2=2^4
(I just put this here because I needed 20 characters so yeah...)
sara can ride her bicycle 3 miles in 12 minutes. at this rate how many miles can she ride her bicycle in 60 minutes?
a. 5
b. 10
c. 15
d. 20
Answer:
A. 5
Explanation:
12 times 5 is 60
show your work
10n = 40
Answer:
4
Step-by-step explanation:
10n=40
10n/10=40/10
n=4
2. Write a quadratic equation with roots (-2,0) and (4,0) that has a minimum value
of -36
Answer:
f(x) = 4*(x+2)*(x-4) factorized formula
f(x) = 4x^2 - 8x - 32 polynomical formula
Step-by-step explanation:
Lets assume the factorized formula of a quadratic function:
f(x) = a*(x-x1)^2 * (x-x2)^2
where "a" is a coefficient and x1, x2 are the roots of the function. Then replacing the given roots:
f(x) = a*(x+2)*(x-4)
because its told us that -36 is the minimum value of the function we can say that its concave, then this value is actually the component in the Y axis of the vertex. To find the component in the X axis of the vertex we have to make the adding between the roots and divide this value by 2, this last is because a quadratic function is a symetrical function. Lets call the component at the X axis of the vertex as Xv, then:
Xv=(x1+x2)/2
Xv=(-2+4)/2
Xv=1
Therefore now we have a point of the function and its P=(1,-36) this point is the vertex of the function too.
Now the last thing to do is to find the value of the coefficient "a". We can find it by replacing the point of the vertex obtained before.
-36 = a*(1+2)*(1-4)
-36 = a*(3)*(-3)
-36 = a*(-9)
4 = a
Finally the equation is:
f(x) = 4*(x+2)*(x-4)
if we expand this function we find the polynomical form of this function
f(x) = 4x^2 - 8x - 32
16x2 - 8x + 1 is an example of a ______
Answer:
the answer would be an equation
The radius of a semicircle is 2 centimeters what is the semicircular diameter
Grade Math
Do Not Reproc
26. What is the solution to the equation 3(4x – 11) + 15 = -6(-x + 7)?
А
X=-30
B
x= -10
C X=-4
D
x= -1
Which pairs of matrices are inverses?
Answer:
B is the answer
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Find the equation, function and describe. (100 points)
X
1
2
3
4
5
6
7
Y
5
2.5
1.6667
1.25
1
.83333
.71429
Answer:
257890 is the function of the equation
Step-by-step explanation:
mark me BRAINLIEST
The vet said Lucy's cat Mitten weighs 8 2/6 pounds. This is 1 5/6 pounds more than Mittens weighed last year. How much did Mitten weigh last year?
Answer:She weighed 7 1/4
Step-by-step explanation: just took the test
Based on the regression output, which of the following is the predicted time, in minutes, that it took to gather the items if the order has 22 items?
Answer:
The predicted time, in minutes, that it took to gather the items if the order has 22 items is 63.8905 minutes
Step-by-step explanation:
Regression Output :
Predictor Coefficient
Constant 3.0979
Square root of items 2.7633
R.sq.- 96.7%
So, with this data the regression equation is,
[tex]\hat{y}=3.0979+2.7633x[/tex]
Now we are supposed to find the predicted time, in minutes, that it took to gather the items if the order has 22 items
Substitute x =22 in equation
[tex]\hat{y}=3.0979+2.7633(22)[/tex]
[tex]\hat{y}=63.8905[/tex]
Hence the predicted time, in minutes, that it took to gather the items if the order has 22 items is 63.8905 minutes
Answer:
this doesnt even relate to the answer. blasphomy.
Step-by-step explanation:
The cost of Marianne's old bracelet is two-thirds
The cost of her new bracelet. The cost of her old
bracelet is $18. Need help what Is this solution
Answer:
the answer is $12
Step-by-step explanation:
to get the answer you would multiply 18 by 2/3 or you can divide by 3 then multiply what you get from dividing by 3 by 2.
version 1: 18(2/3) = ?
12
version 2: 18/3=?
6 you want to multiply by to because that is 1/3 of the original price
6(2) = 12
Either way you get the same answer. Hopes this helps
Which one is the answer ?? Plzz
Answer:
answer is c
Step-by-step explanation:
you have to find x first and try any of the equation if you get y and it is the same of the graph and thats the answer
I NEED HELP OR I FAIL PLEASE HELP ME!!!!
Answer:
The answer is A, ST and WX
Step-by-step explanation:
The answer is A because ST and WX are the same size and shape, just mirrored.
2.3r-y+6=21
Find r when y=7
Find y when r=4.23
Step-by-step explanation:
2.3r - 7 + 6 = 21
2.3r - 1 = 21
2.3r = 22
r = 22/2.3
r = 9.6
2.3(4.23) - y + 6 = 21
9.73 - y + 6 = 21
15.73 - y = 21
-y = 5.27
y = -5.27
2 po
2) At the sixth-grade school dance, there are 132 boys, 89 girls, and 14
adults. Write the ratio of the number of girls to the TOTAL number of
people at the dance. *
NO SPACES and use a colon:
Answer:
Step-by-step explanation:
Girls:Total number of people
89:235
89:47
x-intercept=3, y-intercept=-4 put into slope intercept form
y = mx + c
y intercept= (0,-4) , x intercept = (3,0)
m = (y2-y1)/(x2-x1)
m = (0-(-4))/(3-0)
m = 4/3
0 = (4/3)(3)+ c
c = -4
Thus, the equation is y = 4/3 x -4
Hope it helps :)
Mark it as Brainliest answer pls :)
5(r + 3) = 3r + 35.
What is the answer and please show how you got it
Answer:
r =10
Step-by-step explanation:
5(r + 3) = 3r + 35.
Distribute
5r+15 = 3r+35
Subtract 3r from each side
5r+15-3r = 3r+35-3r
Combine like terms
2r +15 = 35
Subtract 15 from each side
2r+15-15 =35-15
2r = 20
Divide by 2
2r/2 =20/2
r =10
7.18 x 10^3 is more than, the same as, less than 3610
Answer:
Greater than because the answer would be 7,180
Step-by-step explanation:
Represent the situation below as an integer.
Diego owes his father $25.
Answer
-25$
Step-by-step explanation:
A cube-shaped box has a volume of 64 cubic inches. If the box is packed full of cubes with edge lengths of 1 inch, how many cubes can fit along one side of the box?
Answer:
B)
-cube root of 64 to find the length of the cube shaped box
-length of cube shaped box is 4 inches
-So 4 divided by 1 to find how many cubes can fit
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
What is the image of the point (-2,4) after a rotation of 270° counterclockwise about the origin?
Answer:
(4, 2) the formula for 270 rotation counterclockwise is (y,-x)
Step-by-step explanation:
Simplify the equation
find the product :
(127)(-65)
Answer:
-8255
Step-by-step explanation:
A right rectangular prism is shown.
To the nearest thousandth of an inch, what is the length of the diagonal, dd?
Answer:
15.56 in.
Step-by-step explanation:
i'm pretty sure i did it right, but im not sure. i haven't done geometry in like over 2 years.
find the hypotenuse of the triangle with 7 in. and 12 in. as your legs with the Pythgorean theorem (a^2 + b^2 = c^2, c equals the hypotenuse)
use that number you just got (I got [tex]\sqrt{193}[/tex]) and use it as one leg, and 7 in. as the other leg, with d as your hypotenuse
use the Phythagorean theorem again to find d, andddd... you've got your answer!
Length of diagonal 'd' of the right rectangular prism given in the picture will be 14.765 inches.
Pythagoras theorem: Pythagoras theorem is applicable in a right triangle. Pythagoras theorem is given by the expression,(Hypotenuse)² = (Leg 1)² + (Leg 2)²
By applying Pythagoras theorem in right tringle ΔCBE,
(CE)² = (BC)² + (BE)²
(CE)² = 5² + 12²
CE = √169 = 13 inches
Similarly, apply Pythagoras theorem in right triangle ΔDCE,
(DE)² = (CD)² + (CE)²
d² = 7² + (13)²
d² = 49 + 169
d = √218
d = 14.7648
d ≈ 14.765 inches
Hence, measure of diagonal 'd' will be 14.765 inches.
Learn more about the Pythagoras theorem here,
https://brainly.com/question/12306722?referrer=searchResults
Solve: 3y+5=-1 . What’s the solution?
Answer:
hmmm
Step-by-step explanation:
Commutative property means the numbers have to.......
А
the numbers stay in the same spot
B the numbers switch position, but the answers change
С
the numbers switch positions, but the answer is the same
D
it means that a number plus zero will stay the same
Answer:
C. The numbers switch position but the answers stay the same.
Step-by-step explanation:
Is this correct? My answer was 61.5
Answer:
yes 61.5 is correct
Step-by-step explanation:
8) Two lines intersect as shown.
(2x + 20)
60°
What is the value of x?
A 20
B 40
C 50
D60
Answer:
A. 20
Step-by-step explanation:
Vertical angles are congruent, so ...
2x +20 = 60
x +10 = 30 . . . . . divide by 2
x = 20 . . . . . . . . .subtract 10
name 3 lines that are not perpendicular to y=2x-3
what are the two characteristics we look for when trying to solve a quadratic equation?
A. A positive coefficient for x^2 & the equation set equal to 0
B. Factor and cancel
C. Distribute like terms
D. There is no such thing as a quadratic equation
Answer:
Answer A makes the most sense by far.
Step-by-step explanation:
Answer A makes the most sense by far. However, strictly speaking, the coefficient of x^2 does not have to be positive if we're using the quadratic formula. Using some other approach, such as factoring, obtaining a positive coefficient for x^2 is helpful.