Answer:
35.1
Step-by-step explanation:
You have to multiply 45 by .22, and you would get 9.9. Then, you have to subtract 45 and 9.9 to get 35.1. 35.1 is your answer
(ALGEBRA 1)
Answer:
43.06 ft
3.20 seconds
Step-by-step explanation:
h = -16t^2 +50t +4
The maximum is at the vertex
The x coordinate for the vertex is a the axis of symmetry
The axis of symmetry is
h=-b/2a when the equation is at^2 +bt+c
h = -50/2(-16)
=-50/-32
= 1.5625
The maximum is when x is at 1.5625
to find y we put this into the equation
h = -16(1.5623)^2 + 50(1.5625) +4
= -16(2.44140625) + 78.125+4
= -39.0625+78.125+4
=43.0625
To the nearest hundredth
43.06 ft
The second part is to find when it hits the ground, or when h=0
0 = -16t^2 +50t +4
Using the quadratic formula
-b±sqrt(b^2 -4ac)
------------------------
2a
-50±sqrt(50^2 -4*-16*4)
------------------------
2*-16
-50±sqrt(2500 +256)
------------------------
-32
-50±sqrt(2756)
------------------------
-32
-50 + sqrt(2756) or -50 + sqrt(2756)
----------------------- -----------------------
-32 -32
-.078 3.20
Since time cannot be negative
3.20 seconds
B) b4
C) 6.4 x 102
D) 82
I don’t know how to explain it but like 34 64 and 82 like the ones place number is above the tens place
Hi there!
~~~~~~~
Sorry you had to wait a hour for your answer, but I believe the correct answer you are looking for is the answerD) 82.
Simplify 2^2 to 4
4 + 3^4 - 2
Simplify 3^4 to 81
4 + 81 - 3
Simplify
82.
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Hope this helped, have a wonderful day. Feel free to mark me brainiest if it did. :)
answer
5
set up equations
daren is 3 years older than tom
D = 3 + T
3 years ago leah will be 14 less than 3 times darren's age
L - 3 = 3(D - 3) - 14
L - 3 = 3D - 9 - 14
L = 3D - 9 - 14 + 3
L = 3D - 20
5 years ago, leah was 2 years less than 2 times tom
L - 5 = 2(T - 5) - 2
L - 5 = 2T - 10 -2
L = 2T - 10 - 2 + 5
L = 2T - 7
find leah's current age
set L = 3D - 20 and L = 2T - 7 equal to each other
3D - 20 = 2T - 7
plug 3 + T into D using the equation D = 3 + T
3D - 20 = 2T - 7
3(3 + T) - 20 = 2T - 7
9 + 3T - 20 = 2T - 7
T = - 7 - 9 + 20
T = 4
plug T back into L = 2T - 7 to find leah's current age
L = 2T - 7
L = 2 * 4 - 7
L = 8 - 7
L = 1
leah's age 4 years from now
add 4 to leah's current age
1 + 4 = 5
The eighth grade class at grade school has 15 girls and 14 boys. The different boy-girl dates that can be arranged is 210 boy-girl.
The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
The eighth grade class at grade school has 15 girls and 14 boys.
The different boy-girl dates can be arranged
15 x 14 = 210
210 boy-girl
Hence, The different boy-girl dates that can be arranged is 210 boy-girl.
Learn more about the unitary method;
#SPJ2
Answer:
804
Step-by-step explanation:
1,090-286=804
How many boxes must she buy to cover the floor?
A. 1 box
B. 2 boxes
C. 3 boxes
D. 4 boxes
Answer:
B. 2 boxes.
Step-by-step explanation:
Area of the floor = 7 1/2 * 8 5/6
= 15/2 * 53/6
= 265/4 feet^2.
Now we divide this are by 1 square foot giving a total of 265/4
= 66.25 tiles
so she needs 2 * 45 tiles boxes (answer).