Answer:
(m+2)(m-2)=m^2-4
Step-by-step explanation:
(m+2)(m-2)=m(m-2)+2(m-2)
=m^2-2m+2m-4
=m^2-4
!!!PLS HELP 20 PTS!!!
Answer:
I believe it would be A: 60°.
Step-by-step explanation:
I suck at explaining stuff but since R is 60°, and theres 120° outside of the triangle, that implies T = 60°. Triangles equal 180° so
60° + 60° + S = 180°
S = 60°
Hope this helps
Answer:
The answer of the question is 60° which is option(A).
here,
let one be suppose angle a°
a°+ 120° = 180° {being straight angle}or, a° = 180° - 120°
or, a° = 60°
a° = 60°
Now,
Let angle S be s°
s°+60°+60° = 180°{ the sum of angle of triangle is 180°}
or, s° = 180° - 120°
or, s° = 60°
therefore, angle S is 60°
Candace ate 3 over 4 cup of cereal. The box of cereal states that one serving of cereal is equal to 2 over 3 cup. Which fraction represents the number of servings Candace ate?
Answer: Candace ate [tex]\dfrac9{12}[/tex] servings.
Step-by-step explanation:
Given: Candace ate [tex]\dfrac34[/tex] cup of cereal.
The box of cereal states that 1 serving of cereal = [tex]\dfrac23[/tex] cup.
i.e. 1 cup = [tex]\dfrac32[/tex] servings [Multiply [tex]\dfrac32[/tex] both sides]
⇒ [tex]\dfrac{3}{4}[/tex] cup = [tex]\dfrac34\times\dfrac32[/tex] servings
= [tex]\dfrac9{12}[/tex] servings [which is the number of servings she ate]
Hence, Candace ate [tex]\dfrac9{12}[/tex] servings.
The least common multiple of two numbers is 24. Which could be the two numbers?
6 and 8
4 and 6
8 and 16
4 and 12
Answer:
a
Step-by-step explanation:
Answer:
A=6 and 8
Step-by-step explanation:
Hope it is correct
The distance traveled varies directly with the time spent in motion when speed is held constant.
If d represents the distance traveled and t represents time, which equation would represent this variation?
If you travel 150 miles in 4 hours, what is the constant of variation?
If you continue traveling at a constant speed, how long will it take to travel 200 miles? Round to the nearest tenth of
an hour.
about hours
Intro
Done
Answer:
16/3 or 5.3
Step-by-step explanation:
150 miles = 4 hours
Find how long it takes to travel 50 miles(GCF between 150 and 200)
150/3 = 4/3
50 miles = 1 1/3 hours: multiply by 4 to get 200 miles
50 x 4 = 4/3 x 4/1
200 = 16/3
16/3 hours or 5.3
Which values are in the solution set of the inequality -23x+13≥-1?
Answer:
x = 0
Step-by-step explanation:
-23 × 0 = 0
0 + 13 = 13
13 > -1
Help! Again..
The sales tax in your city is 8.8%, and an item costs 63 BEFORE tax.
How much tax would you pay on that item?
Answer:
$5.54
Step-by-step explanation:
8.8% of $63 = 0.088 * $63 = $5.544
Answer: $5.54
Answer:
You would pay $5.54 tax for that item.
Step-by-step explanation:
0.088 x 63 = 5.54
Find the value of x in this
equation
(6x + 1) - 3x = (2x - 1)
Help pls ASAP
Answer:
x = -2
Step-by-step explanation:
A 1st degree polynomial function whose graph intercepts the y-axis at 8.
Your answer can be anything in the form y = mx+8 where you replace m with any real number.
You start with y = mx+b, and then replace the b with the y intercept 8.
The y intercept is where the polynomial crosses the y axis.
The value of m does not matter. So you could have y = 2x+8 or y = 3x+8 for instance. Replace m with whatever your favorite number is.
We want to find a polynomial of 1st degree that passes through the y-axis at y = 8.
The polynomial is: y = a*x + 8
Where the coefficient a can be any real number different than zero.
Let's see how to find that polynomial.
Remember that the degree of a polynomial gives us information of the maximum exponent that the polynomial has.
So if the degree is 1, then the polynomial maximum exponent is 1.
From this we can conclude that the polynomial will be something like:
y = a*x + b
Now, this is just a linear equation, where a is the slope and b is the y-intercept.
We do know that this intercepts the y-axis at 8, then we define b = 8, and we get:
y = a*x + 8
This is our polynomial, where the value of a can be any real number different than zero (we use that restriction because if a = 0, then the degree of the polynomial would not be 1).
If you want to learn more, you can read:
https://brainly.com/question/15522547
use the distributive property to expand 2(6x-5y)-7
What's the equation of a line that passes through (-4,-7) and (4,-1)
Answer:
y= 3/4x-4
Step-by-step explanation:
y=mx+b to find the equation
b) Write 25 x 10 in standard form.
Answer:
10^6
Step-by-step explanation:
Just multiply
Answer:
10^6
Step-by-step explanation:
just add one zero because there is only one zero in 10
(2.8 x 10^4) x (4 x 10^5) in scientific notation
Answer:
[tex] 1.12 \times {10}^{10} \\ [/tex]
Step-by-step explanation:
[tex](2.8 \times {10}^{4}) \times (4 \times {10}^{5} ) \\ 2.8 \times 4 \times {10}^{4 + 5} \\ = 11.2 \times {10}^{9} \\ = 1.12 \times {10}^{10} [/tex]
X - 3y = 6*
Your answer
solve for y
Answer:
y=-2+x/3 OR y=x/3-2
Step-by-step explanation:
x-3y=6
minus x from each side
-3y=6-x
change the symbols
3y=-6+x
divide by 3
y=-2+x/3
if you want, you can make it look better by switching it around to:
y=x/3 -2
Six more years than 2/3 George age is 16 .How old is George
Answer:21
Step-by-step explanation:i did the math
a newspaper charges $4 per line for the first three lines in addition to the $30 fee to advertise
and what is the symbol next to the f?
Answer:
4 dollar for the first 3 lines
Step-by-step explanation:
In math class, you have the following scores: 77, 82, and 73. If the
last test has a maximum of 100 points, what score do you need for
an average of 80?
Answer: 88
Step-by-step explanation: 77+82+73= 232. So you need an 80 for average. So what you have to do is 80x4 and that equals to 320. last step is to subtract 320-232 and you get 88. 77+82+73+88=320.
Answer:
Did you actually get that score???
Actually, it is none- of my buisness, but no one will judge
and probably not for the 77 and 73 your grade just go's up 2 points if you get a 100
Give the domain and range.
The domain is:
The range is:
Answer:
Domain: (-4,4)
Range: (-4,6)
Step-by-step explanation:
Domain is found by viewing the distance from the points on the x-axis (left to right)
Range is found by viewing the distance from the points on the y-axis (up and down)
For domain, the furthest point on the left is (-4,3). You have to take the x from that furthest to the left point (which is -4) to get the first x in the domain (x,y). The furthest point to the right is (4,6). The x on that furthest point is 4. Put them together in the (x,y) form with the furthest left being x and the furthest right being y. That makes the domain (-4,4).
Same goes for range but instead of it being left to right it will be down and up.
Highest point is (4,6)
Lowest point is (0,-4)
Take the y from each one and put them in (x,y) form, this would make your range (6,-4).
Always put the lowest one first (bottom to top)
Always put the furthest to the left first (left to right)
The (x,y) point for either domain or range will always be (lowest value, highest value). In other words, (lowest number, highest number).
3a + 4 = 2a + 7 and justify your steps
Answer:
3
Step-by-step explanation:
3a-2a=7-4
a=3 the answer is 3
NEED HELP ASAP
What is the equation for a line that passes through the points (-4,-1) and (8,17)?
Answer:
y = 1.5x + 5
Step-by-step explanation:
Hope This Helps!
Plz Mark Brainliest!
A television is reduced in a sale by 20%. The sale price of the TV is $328, what was the original price of the TV?
$ 410
Step-by-step explanation:hi there !
80% ................. $328
100% .................$ x
x = 100×328/80
= 32800/80
= $ 410
Good luck !
Solve for x: (1 point)
-9/8, * x - 7=-25
Answer: x=16
Step-by-step explanation: Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
-9/8*x-7-(-25)=0
simplify 9/8
((0 - (9/8 • x)) - 7) - -25 = 0
Subtracting a whole from a fraction
Rewrite the whole as a fraction using 8 as the denominator
7 = 7/1 = 7*8/8
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
-9x - 56 = -1 • (9x + 56)
Adding up the two equivalent fractions
(-9x-56) - (-25 • 8)/8 144 - 9x/8
144 - 9x = -9 • (x - 16)
When a fraction equals zero ...
Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.
Now,to get rid of the denominator, multiply both sides of the equation by the denominator.
Here's how:
-9•(x-16)/8 • 8 = 0 • 8
Now, on the left hand side, the 8 cancels out the denominator, while, on the right hand side, zero times anything is still zero.
The equation now takes the shape :
-9 • (x-16) = 0
Solve : x-16 = 0
Add 16 to both sides of the equation :
x = 16
Answer: x=16
Step-by-step explanation: Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
-9/8*x-7-(-25)=0
simplify 9/8
((0 - (9/8 • x)) - 7) - -25 = 0
Subtracting a whole from a fraction
Rewrite the whole as a fraction using 8 as the denominator
7 = 7/1 = 7*8/8
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
-9x - 56 = -1 • (9x + 56)
Adding up the two equivalent fractions
(-9x-56) - (-25 • 8)/8 144 - 9x/8
144 - 9x = -9 • (x - 16)
When a fraction equals zero ...
Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.
Now,to get rid of the denominator, multiply both sides of the equation by the denominator.
Here's how:
-9•(x-16)/8 • 8 = 0 • 8
Now, on the left hand side, the 8 cancels out the denominator, while, on the right hand side, zero times anything is still zero.
The equation now takes the shape :
-9 • (x-16) = 0
Solve : x-16 = 0
Add 16 to both sides of the equation :
x = 16
Pls i need it like now
Select the correct answer.
which number is the additive Inverse of –10 1/4
A. 10 1/4
B. -4 1/10
C 0
D 4/41
HELP FAST!!!
Answer:
is 0
Step-by-step explanation:
Answer:
A 10 1/4
Step-by-step explanation:
for the inverse of a fraction you just take away the -.
Reba is collecting pledges for a walk-a-thon. Her mother has pledged a flat donation of $8, and her grandmother has pledged $2 per mile. If Reba walks a certain distance, the two donors will end up owing the same amount. What is that distance? How much will each donor owe?
Answer:
4 miles ,each donor will owe $8 hope this helped!
Step-by-step explanation:
What are the two answers for this problem? |c - 24| = 7c
Step-by-step explanation:
c=7c+24
c-7c=24
-6c=24
c=24÷-6
c=-4
Solve the equation
x + 3x – 7 = 0
Give your answers to 2 decimal places.
Answer:
x = 1.75
Step-by-step explanation:
7 / 4 = 1.75
x + 3x = 4x
Express 156 as the product of primes.
Answer:
Step-by-step explanation:
Divide the numbers by only the prime numbers.
After u have done completing as in the attached picture:
you have to write :
156 = 2 × 2 × 3 × 13
During the winter, you charge people $15 for going to their house to shovel, then $11 for every hour you shovel. If you shovel 3 driveways in one day and make $89 that day, how many hours did you spend shoveling?
Answer:
4
Step-by-step explanation:
15x3=45
89-45=44
11x4=44
Answer:
Spent 4 hours shoveling
Step-by-step explanation:
15 x 3 = 45
89 - 45 = 44
44 / 11 = 4
I hope this helps you :)
How old is Katie if her mother is 3 times as old as her, but was 4 times older than her 4 years ago?
A. 12 years old
B. 8 years old
C. 36 years old
D. 32 years old
Answer:
32
Step-by-step explanation:
Answer please :D.....
Answer
50/1 6/7
Step-by-step explanation:
