Answer:
24th day
Step-by-step explanation:
Solve for X and Y using substitution.
1)
12x +y = 36
x+4y=24
Lex Luthor has 200 evil plans for defeating Superman. Of these plans, 24 involve kryptonite. What percent of the evil plans involve kryptonite?
1. 10%
2. 12%
3. 25%
4. 50%
Answer:
12 percent is your answer, it would've been %24 if it was 100 percent but it is 200 so it is %12
Step-by-step explanation:
Have a great day :)
Guys can you please help me this is my last assignment before thanksgiving break and my cousin who I haven’t seen in 3 years is coming and I don’t want to spend the time I have doing homework
Answer:
5. $1417.50, 6. $18.13, 7. $.78 (assuming the interest rate is annual), 8. .0625%, 9a. 5%, b. No because If he invests $4200 at 6% for 3 years he will have earned $756, so $4200+$756= $4956
Step-by-step explanation:
Have fun with your cousin
Complete the following statement. 8 + ( ) = 6
Answer:
8+(-2)=6
Step-by-step explanation:
HELP ASAP!!! Which inequality is true?
Answer: D.
Step-by-step explanation: 3x3 is 9, and pi is greater than 3. approx. 3.14 (which is pi) x 3 is greater than 9.
Solve [0, 2pi)
3 Cos(2x) = 5 Sin(x) - 1
Given :
Solve [0, 2π)
3cos(2x) = 5sin(x) - 1
To Find :
The value of x in range [0,2π).
Solution :
We know, cos(2x) = 1 - sin²x .
3( 1 - 2sin²x ) = 5sinx - 1
3 - 6sin²x = 5sinx - 1
6sin²x + 5sinx - 4 = 0
6sin²x + 8sinx - 3sinx - 4 = 0
2sinx( 3sinx + 4 ) - 1( 3sinx + 4) = 0
sin x = 1/2 and sin x = -4/3 .
Since, sin x ≤ 1.
So, sin x = 1/2 .
x = π/6 .
Therefore, value of x is π/6.
Hence, this is the required solution.
14x-76+8x+2=180 solve for x
please help meeee
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[tex]14x - 76 + 8x + 2 = 180[/tex]
[tex]14x + 8x + 2 - 76 = 180[/tex]
[tex]22x - 74 = 180[/tex]
Add sides 74
[tex]22x - 74 + 74 = 180 + 74[/tex]
[tex]22x = 254[/tex]
Divide sides by 22
[tex] \frac{22}{22} x = \frac{254}{22} \\ [/tex]
[tex]x = \frac{127}{11} \\ [/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Answer:
x = [tex]\frac{127}{11}[/tex]
Step-by-step explanation:
14x - 76 + 8x + 2 = 180
Collect like terms;
22x - 74 = 180
Add 74 to both sides;
22x = 254
Divide both sides by 22;
x = [tex]\frac{254}{22}=\frac{127}{11}[/tex]
Eight friends purchase various supplies for a camping trip and agree to share the total cost equally. They
spend $85.43 on food, $32.75 on water, and $193.26 on other items. How much does each person owe?
Each person owes $
Answer:
Per person $38.93
Step-by-step explanation:
193.26+85.43+32.75=$311.44
$311.44 divided by 8=$38.93 per person
Best,
SunflowerJada
BRIANLIEST HELP!!!
Find the error & explain why it is wrong:
(3x^2y^4)^2 = 6x^4y^8
Answer:
Step-by-step explanation:
Given expression is (3x²y⁴)²
We can rewrite the given expression as,
(3x²y⁴)² = (3)²(x²)²(y⁴)² [Every term of the the expression will be squared]
= 9x⁴y⁸
But in the picture attached, it has been given as (6x⁴y⁸).
Therefore, in place of 6 it should be 9.
Find the missing number so that the equation has no solutions.
x+20=
–
4x+3
Answer: Its 3x
Step-by-step explanation:
I don't really know how to explain it.
if a baby is born at 6.6 lbs and 19 inches long, then what is the baby's weight in kg? Note (2.2 lb = 1 kg)
Answer choices:
A. 4.0 kg
B. 3.0 kg
C. 14.52 kg
D. .33 kg
E. 8.6 kg
Answer:
B
Step-by-step explanation:
2.2lb = 1 kg
6.6/2.2=3.0kg
The correct weight of the baby is given by option B) 3.0 kg
What is the unitary method?The unitary method is a method in which you find the value of a unit and then the value of a required number of units.
Given here, the baby's weight as 6.6 lbs and 1 lb=0.45 kg
Thus 6.6 lbs=6.6×0.45
= 3.0 ( approx)
Hence, The correct weight of the baby is given by option B) 3.0 kg
Learn more about the unitary method here:
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What is the slope of the line that passes through the points (2, 0)(2,0) and (1, 0) ?(1,0)?
Answer:
Step-by-step explanation:
Slop = (y2-y1)/(x2-x1)
= (0-0)/(2-1)
= 0/1
=0
I need help with slope
easy way to figure out slope: its rise/run (how far up it goes/how far over it goes)
so, the slope for this is 2/3
hope this helps!! :)
Answer:
2/3
Step-by-step explanation:
y2-y1/x2-x1
you can pick any 2 points I choose 2,3 and 5,5
5-3/5-2=2/3
Evaluate 3^4
A. 81
B. 12
C. 27
D. 64
Can y’all pls help me
Answer:
A. 81
Step-by-step explanation:
It is 3 x 3 = 9 x 3 = 27 x 3 = 81
Hope this helps
what is 1 ¼ ×2⅗= this is middle school
Answer:
(1 1/4) ×(2 3/5) = 13 /4 = 3 1 /4 = 3.25
2
l6a - - 25b
[tex] {16a}^{2} - {25b}^{2} [/tex]
Answer:
(a+5b)⋅(a−5b)
Step-by-step explanation:
I need help with this question ASAP
Sub to bionic pleasssssse
Answer:
BRO HE IS THE BEST SO I SUBBED
A baseball is hit from an initial height of 3 feet and reaches a maximum height of 403 feet. Which function could be used to model this situation, where h(t) is the height, in feet, after t seconds?
A. h(t) = -16(t - 403)^2 + 3
B. h(t) = -16(t - 5)^2 + 3
C. h(t) = -16(t - 3)^2 + 403
D. h(t) = -16(t - 5)^2 + 403
Answer:
I believe its A
Step-by-step explanation:
D. h(t) = -16(t - 5)² + 403 could be used to model this situation.
What are the given informations ?A baseball is hit from an initial height of 3 feet.
The baseball reaches a maximum height of 403 feet.
Here, h(t) indicates the height in feet after t seconds.
Which function is correct ?At the start, t = 0 & Initial height = 3 feet ,i.e. h(0) = 3
We have to verify options by putting t = 0
A. h(t) = -16(t - 403)² + 3
So, h(0) = -16(0-403)² + 3 = -16(-403)² +3 = -2598544+3 = -2598541
B. h(t) = -16(t - 5)² + 3
So, h(0) = -16(0-5)² + 3 = -16(-5)² + 3 = -400+3 = -397
C. h(t) = -16(t - 3)² + 403
So, h(0) = -16(0-3)² + 403 = -16(-3)² + 403 = -144 + 403 = -259
D. h(t) = -16(t - 5)² + 403
So, h(0) = -16(0-5)² + 403 = -16(-5)² + 403 = -400 + 403 = 3
Hence, in this function h(0) = 3 verified.
Therefore h(t) = -16(t - 5)² + 403 is the required function.
Learn more about function here :
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how to Evaluate: (6 + 2 )^3 - 12
Answer: 500
Step-by-step explanation:
(8)^3 - 12
512-12 = 500
7. What are the x-intercepts of the graph of y = (3x +8)(5x - 3)(x - 1)?
Answer:
y = 15x^3 + 16x^2 - 55x + 24
Step-by-step explanation:
y = (3x +8)(5x - 3)(x - 1)
y = (15x^2 - 9x + 40x -24) * (x - 1)
y = (15x^2 + 31x - 24) * (x-1)
y = 15x^3 - 15x^2 + 31x^2 - 31x - 24x + 24
The x-intercepts of a graph are the points where the graph crosses the x-axis.
The x-intercepts are: [tex]\mathbf{x = ,-\frac83, \frac 35\ and\ 1}[/tex]
The function is given as:
[tex]\mathbf{y = (3x + 8)(5x - 3)(x - 1)}[/tex]
First, we plot the graph of [tex]\mathbf{y = (3x + 8)(5x - 3)(x - 1)}[/tex]
See attachment for the graph
Next, write out the x-values when the graph crosses the x-axis.
From the graph, we have:
[tex]\mathbf{x = -\frac 83}[/tex]
[tex]\mathbf{x = \frac 35}[/tex]
[tex]\mathbf{x = 1}[/tex]
Hence, the x-intercepts are: [tex]\mathbf{x = ,-\frac83, \frac 35\ and\ 1}[/tex]
Read more about x intercepts at:
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The product of 485 x 35 is 16975, what is the product of 485 x 3.5? How do you know?
Answer:
1697.5
Step-by-step explanation:
bY multiplying
Answer:
1697.5
Step-by-step explanation:
you just add a dot next the the 5 and remove remove the last dight
Open Response~ Teddy has two
piggy banks. The difference in the amount of money between the two banks is no more
bank has $7.31 in it. Select the choices that make the inequality and statement about the possible amount of money in th
correct
Answer:
the 2 banks are more than 7.31
PLEASE HELP ME WITH THESE PROBLEMS
USE THE DISTRIBUTIVE PROPERTY!!
1. (x - 5)y
2. (d - 7)c
Answer: it is all explained in the photo
Wish it helped you understand it better :)
Anna and Jason have summer jobs stuffing envelopes for two different companies. Anna earns $14 for every 400 envelopes she finishes. Jason earns $9 for every 300 envelopes he finishes. I need someone to solve this but represent it on a table instead of a graph.
Answer:
Q1: 20,000 envelopes
Q2: Savings = $700
Step-by-step explanation:
Let the number of envelopes stuffed by each be "x"
We can create 2 equations, each for Anna and Jason, equate them and find our answer.
For Anna:
$14 for 400, so
14/400 = $0.035 PER ENVELOPE
Savings for Anna is 0.035x
For Jason:
Already has 100 (fixed)
Gets $9 for 300 envelopes, so
9/300 = $0.03 PER ENVELOPE
Savings for Jason is 100 + 0.03x
We equate and solve for x:
So, For both their savings to be equal, they need to stuff 20,000 envelopes
Their savings would be:
0.035x
or 100 + 0.03x
We can plug in x = 20,000 in any one equation, the answer would be same.
So,
0.035(20,000) = $700
savings = $700
Step-by-step explanation:
If f(x) = 5x - 12, what is f(2)?
A. 10
B. 2
C.-22
D.-2
Answer-2:
Step-by-step explanation:
F(x)= 5x-12
F(2)= 5(2)-12
F(2)= 10-12= -2
A crane has a cable with a breaking strain of 6400kg measured to 2 significant figures it is used to lift crates which weigh 90kg measured to the nearest 10kg what is the greatest number of crates that can safely be lifted at one time without breaking the cable some working must be shown
Answer:
100/2=50
lower bound of 6400kg = 6350kg
10/2=5
upper bound of 90kg = 95kg
6350kg/95kg=66kg
Step-by-step explanation:
this is right
If you square a number, the result will always be larger than the orignal number?
True of False?
Why or Why not?
Answer:
false
Step-by-step explanation:
1² = 1, not always true
13x+8+8x=-9x-22
please help i’m so confused
Answer:
-1
Step-by-step explanation:
-isolate everything with x on one side and without x on the other side
-remember if you pass the equal sign change the sign of that term
13x+8x+9x = -22-8
-combine like terms
30x = -30
-divide both sides by 30
x= -1
Answer:
x = -1
Step-by-step explanation:
simplfy to 21x + 8 = -9x -22
add 9x to get 30x + 8 = -22
then subtract 8 to get 30x =-30
divide by 30 and you get x = -1
Translate and solve: m decreased by 12 is equal to negative 3. *
Answer:
Step-by-step explanation:
m-12= -3 add 12 to both sides
m=9