Answer:
I think its 128
Step-by-step explanation:
What is the distance between the points (-9,-2) and (-1,4)
Answer:
The answer is: (98-3)
Answer:
8,2
Step-by-step explanation:
becuase it is 8 points away from the origanal but also 2 points away
-Ꮾb > 42 or Ꮞb + Ꮾ > 2
Answer:
b<-7 or b>-1
Step-by-step explanation:
explanation: -6b>42 turns into -42>6b then divide by 6 on both sides and you get -7>b
for the other inequality, you take 4b+6>2 and then subtract6 from both sides, from there you will get 4b>-4 and that will be b>-1
Please help me my homework is due tomorrow use the screen shot
Answer:
1/5
Step-by-step explanation:
(5^7*5^5)/5^13 (when multiplying numbers with the same base, add the exponents)
= (5^12)/5^13 (when dividing exponents with the same base, subtract the exponents)
= 1/5^1 (anything to the first power is itself)
= 1/5
What is 5 + 5???????????????????????
Answer:
10 is the correct answer
Step-by-step explanation:
5+5=10
Write an equation in slope-intercept form of the line that passes through the points.
Answer:
y=-2x
Step-by-step explanation:
slope is -2 and the y intercept is 0 so if you plug these answers into slope intercept form (y=mx+b) then it comes to y=-2x
Jane worked for 10 hours on the weekend. She was paid $7.00 per hour. How much Medicare tax was withheld from her paycheck if the tax rate is 1.45%?
Answer:
The Medicare tax withheld from her paycheck if the tax rate is 1.45% was $1.015.
Step-by-step explanation:
First, you have to determine the amount that Jane earned by multiplying the amount she earns per hour for the number of hours she worked:
$7*10=$70
Then, you need to calculate 1.45% of $70:
$70*1.45%=$1.015
According to this, the answer is that the Medicare tax withheld from her paycheck if the tax rate is 1.45% was $1.015.
Please Help
Please let me know how to do it, I don't only want the answer. Thank you!
(4y+3)-(y-2)
(There is no equal sign in the math problem)
The diagram (picture) shows the speed-time graph of a body moving in a straight line.
(a) Calculate he acceleration of the body during the first 15 seconds.
(b) Calculate the distance moves by the body in the first 40 seconds of its motion.
(c) Given that the body decelerate at 1.25 m/s[tex]^{2}[/tex]
Answer:
Below.
Step-by-step explanation:
(a)
The acceleration = the slope of the graph (change of velocity / time)
= 25/15
= 1.67 m/s/s.
(b)
The distance moved = the area under the graph for the first 0 seconds,
= area of the first triangle + area of the rectangle with height 25 and length (40 - 15)
= 1/2 * 15 * 25 + (40-15) * 25
= 187.5 + 625
= 812.5 m.
(c). ? what is the question?
? apartments in 3 floors = 5 apartments per floor
A painter is going to paint the rooms of a building. The painter has used 80 gallons of paint and has painted 32% of the rooms. How many more gallons of paint does the painter need to finish painting all of the rooms in the building?
The painter needs ______ gallons of paint to finish painting all of the rooms.
Answer:
30 gallons
Step-by-step explanation:
When x = 2,what is the value of y for the equation – 3x + 2y = 10?
Answer:
y=x+5
Step-by-step explanation:
Answer:
[tex] \huge{ \boxed{ \bold{ \tt{y = 8}}}}[/tex]
☪ What is the value of y for the equation given below when x = 2 ?
-3x + 2y = 10☪ Step - by - step explanation :
[tex] \sf{ - 3x + 2y = 10}[/tex]plug the value of x ( i.e 2 )
➳ [tex] \sf{ - 3 \times 2 + 2y = 10}[/tex]
Remember : Multiplying or dividing a negative integer by a positive integer gives a negative integer.
➳ [tex] \sf{ - 6 + 2y = 10}[/tex]
Move 6 to right hand side and change it's sign
➳ [tex] \sf{2y = 10 + 6}[/tex]
Add the numbers : 10 and 6
➳ [tex] \sf{2y = 16}[/tex]
Divide both sides by 2
➳ [tex] \sf{ \frac{2y}{2} = \frac{16}{2}} [/tex]
➳ [tex] \boxed{ \sf{y = 8}}[/tex]
——————————————————
✏ Now, let's check whether the value of y is 8 or not !
✑ Verification :
[tex] \sf{ - 3x + 2y = 10}[/tex]
→ [tex] \sf{ - 3 \times 2 + 2 \times 8 = 10}[/tex]
→ [tex] \sf{ - 6 + 16 = 10}[/tex]
→ [tex] \sf{10 = 10}[/tex]
L.H.S = R.H.S ( Hence , the value of y is 8 . )
——————————————————
☞ Additional Info :
✒ Sign rules of addition and subtraction of integers:
The positive integers are always added and posses the positive ( + ) sign.The negative integers are always added but posses the negative ( - ) sign.The negative and positive integers are always subtracted but posses the sign of the bigger integer.✒ Sign rules of multiplication and division of integers :
Multiplying or dividing positive integers gives a positive integer.Multiplying or dividing positive integer by any negative integer gives a negative integer.Multiplying or dividing a negative integer by a positive integer gives a negative integer.Multiplying or dividing a negative integer by a negative integer gives a positive integer.✒ Rules for solving an equation :
If any equation contains fractions , multiply each term by the LCM of denominators.Remove the brackets , if any.Collect the term with the variable to the left hand side and constant terms to the right side by changing their signs ' + ' into ' - ' and ' - ' into ' + '.Simplify and get the single term on each side.Divide each side by the coefficient of variable and then get the value of variable.Hope I helped!
Have a wonderful time ツ
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5-5 Medians and Altitudes
Triangle EFG has an incenter and orthocenter of D. What kind of triangle is triangle EFG?
A. Right
В.
Isosceles
C. Scalene
D
Equilateral
Answer: D Equilateral
Step-by-step explanation: Center of a triangle is a point where lines intersect. There 4 most popular: centroid, circumcenter, orthocenter and incenter.
Altitude or Height of a triangle is a perpendicular line is draw from a vertex to the opposite side. There are 3 heights and they united (or intersect) at a point called Orthocenter
Incenter is a point where the three angle bisectors meet. Angle bisector is a line that divide the angles of the triangle in two equal angles.
Generally, each center is positioned at a different location on the triangle (in one example, the point is located outside the triangle).
However, there is a case in which incenter and orthocenter are coincidental. That case is for a equilateral triangle, a triangle whose angles and sides are the same.
I NEED HELP!! WITH NUMBER 4 BOTH ANSWERS
Answer:
The first one is 12
The second one is -12
Just multiply, and remember the negative signs.
Answer:
1st Question- Positive Twelve
Second Question- Negative Twelve
Step-by-step explanation:
Need help pls im poor
Answer:
The mom is 30 times older than the son and the son is 30 years younger
Step-by-step explanation:
it says so
$60 is the original price and the sale price is $45 what is the percent discount
Answer:
your discount would be 25
Step-by-step explanation:
start, first subtract 45 from 60 to find the amount of money taken off from the discount:
60-45
=15
Because 15 dollars have been taken off the original price, you can find the percent of discount by setting up this proportion where x represents the percent of discount:
15/60=x/100
Now, cross multiply and solve for x:
1500=60x
x=25
Therefore, your discount would be 25%.
Answer:
25% !
Step-by-step explanation:
I looked it up and it makes sense!
what is the constant of proportionality for the table below?
Answer:
.75 or 3/4
Step-by-step explanation:
sole w - 12 = -3 using mental math
Answer:
-15
Step-by-step explanation:
Answer:
w=9
Step-by-step explanation:
w - 12 = -3
w-12+12=-3+12
w=9
−3−(−5)
PLease Help me
Answer:
2
Step-by-step explanation:
Simplify the expression.
Answer:
2
Step-by-step explanation:
Two subtraction/negative signs make a positive so it's pretty much -3 + 5
So if you take 3 away from 5 you are left with 2
Write an equation of a line parrallel to y=-3x+5 that has a y-intercept of 8.
Answer:
y=-3x+8
Step-by-step explanation:
if u want them to be parallel make the slope the same
(in this case, -3x)
and the y-int at the end is +8
Explain how to change a negative exponent to a positive one
Answer:
Flip the fraction that you are applying the exponent to, if it's a whole number, just imagine it's over one and flip it that way.
Explanation:
If you have 3/5 ^-3
You would flip the fraction to 5/3, then the exponent turns to positive 3
So 5/3 ^3
For a whole number, for example, 6, ^-2
In other words, it's 6/1 ^2, so you would make it 1/6, then the exponent turns positive.
So 1/6 ^2
Hope this helped :)
To change a negative exponent to a positive one, a flip it into a reciprocal.
Here,
We have to explain, change a negative exponent to a positive one.
What is Reciprocal?
The inverse of a number is called Reciprocal.
Now,
Let a number is, [tex]5^{-2}[/tex]
Then change it into positive exponent as;
Take reciprocal of [tex]5^{-2}[/tex], we get;
⇒ [tex](\frac{1}{5} )^2[/tex]
Hence, reciprocal of [tex]5^{-2}[/tex] = [tex](\frac{1}{5} )^2[/tex]
So, To change a negative exponent to a positive one, a flip it into a reciprocal.
Learn more about the reciprocal visit:
https://brainly.com/question/1955429
#SPJ2
The 24 girls in 20 boys to school gym clothes have to be split into groups for a team building activity. If each group must be identical, what is the maximum number of groups that can be made?
Answer: 4
Step-by-step explanation:
Given: Total girls = 24
Total boys = 20
If each group must be identical, then the maximum number of groups that can be made = GCD(24,20) [GCD= Greatest common divisor]
Since 24 = 2 x 2 x 2 x 3
20 = 2 x 2 x 5
GCD(24,20)= 2 x 2 = 4
Hence, the maximum number of groups that can be made = 4
Mary rolls a fair dice and flips a fair coin.
What is the probability of obtaining an even number and a tail?
Answer:
1/4
Step-by-step explanation:
even number is 3/6 = 1/2
and the coin is 1/2
so 1/2 x 1/2 = 1/4
Answer:
1/4
Step-by-step explanation:
9) through: (1, 2), slope = 7
Write the equation in vertex form given the vertex (4, 7) and passing through the point (0, 10).
Answer:
f(x) = ³/₁₆ (x - 4)² + 7Step-by-step explanation:
The vertex form of the equation of the parabola with vertex (h, k) is:
f(x) = a(x - h)² + k
so the equation of parabola with the vertex (4, 7) is
f(x) = a(x - 4)² + 7
passes through the point (0, 10) means if x=0 then f(x)=10
10 = a(0 - 4)² + 7
10 -7 = a(-4)² + 7 -7
3 = 16a
a = ³/₁₆
Therefore the equation of parabla is:
f(x) = ³/₁₆ (x - 4)² + 7
Pls HELP FAST
At Fridays game sold 1,294 tickets and made $8,816 if each student ticket cost $5 and adult ticket cost $8 how many student tickets were bought?
Answer
512 student tickets were purchased.
Step-by-step explanation:
what is the slope of (-4,7) and (6,2)
Answer:
use the slope formula to find the slope m
m = - 1/2
Star bought a new pair of Ray Ban sunglasses, originally priced at $109.99, on sale for 25% with a 5% tax. How much does Star pay for the sunglasses?
Answer:
$22
Step-by-step explanation:
Hazel has $50 in a savings account that earns 10% interest, compounded annually. To the nearest cent, how much will she have in 2 years?
Answer:
$66.55 dollars i took the same question
solve by elimination 3x+y=5 -2x-y=-10
Answer:
(-5, 20)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASEquality PropertiesAlgebra I
Solving systems of equations using substitution/eliminationSolving systems of equations by graphingStep-by-step explanation:
Step 1: Define systems
3x + y = 5
-2x - y = -10
Step 2: Solve for x
Elimination
Add 2 equations together: x = -5Step 3: Solve for y
Define original equation: 3x + y = 5Substitute in x: 3(-5) + y = 5Multiply: -15 + y = 5Add 15 on both sides: y = 20Step 4: Graph systems
Check the solution set and graph.
Answer:
x = -5
y = 20
Step-by-step explanation:
3x + y = 5 ⇒ y = 5 - 3x
-2x - y = -10 ⇒ 2x + y = 10
2x + (5 - 3x) = 10
5 - x = 10
x = -5
Substitution of x-value into "y = 5 - 3x":
y = 5 - 3(-5)
y = 5 + 15
y = 20
????? help out ( not good with math )
Answer:
The answer is x = 3
Step-by-step explanation:
5x + 9 = 24
5x +9 -9 = 24 - 9
5x = 15
x = 15/5 = 3
Therefore, x = 3
Kelly multiplied 5 to each side when she solved for x, which is incorrect.
Answer:
Kelly had incorrectly solved for [tex]x[/tex] where she had multiplied by [tex]5[/tex] instead of dividing by [tex]5[/tex] to find for [tex]x[/tex].
Step-by-step explanation:
How Kelly should have solved it:
[tex]5x+9 = 24[/tex]
[tex]5x + 9-9= 24-9[/tex]
[tex]5x=15[/tex]
[tex]5x\div 5=15\div 5[/tex] (mistake occurred during this step in Kelly's work where she had multiplied by [tex]5[/tex])
[tex]x=3[/tex]
Checking:
To check if [tex]x=3[/tex], we can use substitution:
[tex]5x+9 = 5(3)+9[/tex]
[tex]=15+9[/tex]
[tex]=24[/tex]
∴ The solution for [tex]x[/tex] is correct.
Hope this helps :)