Answer:
x=-1
Step-by-step explanation:
plug in zero for y
y= -1/2x -2
0= -1/2x-2
2= -1/2x
-1=x
Given m|n, find the value of x.
what is ─2c – 2 = ─3c – 8 solved for the variable?
Answer:
c = -6
Step-by-step explanation:
C is your variable
-2c - 2 = -3c - 8
+3c +2
1c = c -8 +2 = -6
c = -6
:)
A box contains orange balls and green balls. The number of green balls is six more than four times the number of orange balls. If there are 86 balls altogether, then how many green balls and how many orange balls are there in the box?
kari estimated the quotient of -12 1/5 divided by 4 2/5 to be -8. Which best describes her error?
Answer:
She divided wrong
Step-by-step explanation:
16/20 as a decimal?
What inequality is represented by this graph?
Solve the system by the elimination method. Check your work.
x-3y=0
3y-6=2x
(-2,-6)
(-6,-1/2)
(-6,-2)
Answer:
C, (-6,-2)
Step-by-step explanation:
x - 3y = 0 --(1)
3y - 6 = 2x --(2)
We can rearrange equations 1 and 2:
3y - x = 0 --(3)
3y - 2x = 6 --(4)
Subtract 4 from 3:
(3y-3y) + (-2x+x) = (6-0)
-x = 6
x = -6
Substitute x=-2 into any equation. In this case, I substituted it into equation 1 but the value of y would be the same if you substituted it into a different equations:
x - 3y = 0
-6 = 3y
y = -2
Let's check to see if we are right but substituting the values of x and y into both equations
x - 3y = 0
-6 + (-3*-2) = 0
-6 + 6 = 0
0 = 0 Correct
3y - 6 = 2x
3(-2) - 6 = 2(-6)
-6 - 6 = -12
-12 = -12 Correct
Our answer is correct!
Enter an equation in point-slope form for the line. (6,8) and (7,1) is on the line. The equation of the line in point slope form is:
Answer:
[tex] y - 8 = -7(x - 6) [/tex] or [tex] y - 1 = -7(x - 7) [/tex]
Step-by-step explanation:
The point-slope form equation is [tex] y - b = m(x - a) [/tex], where,
(a, b) = a point on the line.
[tex] m = slope = \frac{y_2 - y_1}{x_2 - x_1} [/tex]
Given the two points, (6, 8) and (7, 1), find the slope of the line:
[tex] m = \frac{1 - 8}{7 - 6} [/tex]
[tex] m = \frac{-7}{1} [/tex]
[tex] m = -7 [/tex]
There are two possible point-slope equation we can come up with using each points on the line given.
Using the point (6, 8) and m = -7,
Substitute m = -7, a = 6, and b = 8 into [tex] y - b = m(x - a) [/tex]
[tex] y - 8 = -7(x - 6) [/tex]
Using the point (7, 1) and m = -7,
Substitute m = -7, a = 7, and b = 1 into [tex] y - b = m(x - a) [/tex]
[tex] y - 1 = -7(x - 7) [/tex]
Caroline’s cell phone plan costs $32 per month. Which table shows the sum of the amounts that Caroline will pay for her cell phone plan over the next 4 months?
Answer:
The first month is $32
The second month is $64
The third month is $96
The fourth month is $128
Step-by-step explanation:
32 plus 32 is 64 and 32 plus 64 is 96 so on
#1) **In the xy plane, the graph of which of the following equations has a slope of -2 and goes through the point (3.-5)?
The equation of the line on the xy-coordinate graph ... is the distance from the center of the base to a point on the circumference of the top of the can?
The values in the table represent the graph of a continuous function. Which interval must contain an x-intercept? x y –3.1 –1.85 –2.7 –0.84 –2.3 –0.09 –1.9 0.44 –1.5 0.79 –1.1 1.00 –0.7 1.10 –0.3 1.13 0.1 1.13 –3.1 < x < –2.7 –2.3 < x < –1.9 –1.5 < x < –1.1 –0.3 < x < 0.1
Given:
The values in the table represent the graph of a continuous function.
To find:
The interval that must contain an x-intercept.
Solution:
From the given table it is clear that, initially y-values are negative but after negative values we get y=0.44 at x=-1.9.
This signs of y-value are different, it means the graph of continuous function must contain an x-intercept in the interval -2.3 < x < -1.9.
Therefore, the correct option is B.
Answer:
Its , -2.3 < x < -1.9
Step-by-step explanation:
Edge 2020
[15 points] PLEASE HELP!
A university's freshman class has 4800 students. 76% of those students are majoring in Economics. How many students in the freshman class are Economics majors?
Answer:
the answer is 3648 students
Step-by-step explanation:
mark is shopping during a computers store 20% sale. He wants to buy computers in the range of $500 to $1000. how much are the computers after 20%
It's £2000 ( don't have the us money sign sorry )
The cost of computer($1000) after sale is $800.
Given that, a computers store 20% sale. He wants to buy computers in the range of $500 to $1000.
What is percentage?Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".
If cost of computer is $500
Then, 20% of 500 = 0.2×500
= $100
So, after sale the cost of computer is 500-100=$400
Similarly, for other cost as well
If cost of computer is $1000
Then, 20% of 1000 = 0.2×1000
= $200
So, after sale the cost of computer is 1000-200=$800
Therefore, the cost of computer($1000) after sale is $800.
To learn more about the percentage visit:
brainly.com/question/24159063.
#SPJ2
Consider functions f and g
Answer: B
f(g(x)) = (3x - 1)² + 7(3x - 1) = 9x² + 15x - 6
Step-by-step explanation:
Evaluate the expression when a=3 and c = -2. C-5a
Answer:
-17
Step-by-step explanation:
c - 5a
substitute c for -2
-2 - 5a
substitute a for 3
-2 - 5*a
-2 - 5*3
-2 - 15
-17
A rectangle with area 55 square inches has a length that is four less than three times the width.
Answer:
the length is 11
the width is 5
Step-by-step explanation:
5 times is 15 and 11 is 4 less than 15 :)
During bowling practice, Marley rolled 14 strikes out of 70 attempts.
What percent of Marley’s attempts were strikes? Enter your answer in the box.
Answer:
20%
Step-by-step explanation:
to find out we make it a fraction:
14/70
then divide
14÷70=0.2
then times it by 100
= 20%
Answer:
20%
Step-by-step explanation:
[tex]\frac{14}{70}[/tex] = [tex]\frac{x}{100}[/tex]
14 x 100 = 1400
1400/ 70 = 20%
Ariana Grande received $5,000 to perform and made $100 per ticket. If she made $18,500, how many tickets did she sell? (use an equation to solve)
Answer:
135 tickets
Step-by-step explanation:
18500=5000+100x
13500=100x x=135
-2+2-0-2=?
can someone explain the answer for this
Answer:
-2
Step-by-step explanation:
-2 is two less than 0. if you add 2 to this, you get 0. if you take away 0 from 0, it is still 0. if you take away two from 0, you get -2. so the answer is -2
express each relation as a table and a graph. then state the domain and range.
{(8, 5) , (-6, -9), (2, 5), (0, -8)}
Answer:
domain: {-6, 0, 2, 8}
range: {-9, -8, 5}
dont forget the braces {,}Step-by-step explanation:
use the diagram to solve x and y
Answer:
x = 54°
y = 144°
Step-by-step explanation:
x° + 36° = 90° (complementary angles)
Subtract 36° from each side of the equation
x° = 90 - 36°
x = 54°
y° + 36° = 180° (angles on a straight line/supplementary angles)
Subtract 36° from each side
y° = 180° - 36°
y = 144°
what is 4.5 x 10 in standard notation
Answer:
45
Step-by-step explanation:
Look at the cups shown below (images are not drawn to scale): A cone is shown with width 3 inches and height 6 inches, and a cylinder is shown with width 3 inches and height 5 inches How many more cubic inches of juice will cup B hold than cup A when both are completely full? Round your answer to the nearest tenth. 18.8 cubic inches 21.2 cubic inches 28.2 cubic inches 49.5 cubic inches
Answer:
cup B can hold 21.2 cubic in more than cup A when theyre both full, so the answer is cup B.
Step-by-step explanation:
Mrs. Miner bought a 25 ounce smoothies that has 450
calories. How many calories does the smoothie have per
ounce? Pls help me.
Answer:
18
Step-by-step explanation:
450/25=18
solved these easy question.
1+2=
Does anybody know the answer to this math question I’m lost
Answer:
x-7
Step-by-step explanation:
Sarah mailed her computer to Store B for repairs. Her bill was:
Initial Repair Cost = $1,350
Sales Tax of 7 percent = $94.50
Total Cost of Computer Repair = $1,444.50
Shipping = 2 percent of Total Cost
Which expression would you use to find the shipping cost?
0.2($1,350)
0.2($1,444.50)
0.02($1,350)
0.02($1,444.50)
Answer:
0.02 (1444.50)
Step-by-step explanation:
Answer:0.02(1444.50)
Step-by-step:
to figure out the shipping cost we would just multiply the shipping percent by the total cost of the computer. however we cant leave the '2 percent' as it is we would have to multiply it by 100. giving us .02 which we can then use to multiply
explain how (-3) x (-3) = 9 using coupons as the real world example
Answer:
a negative multiplied by a negative is always a positive
Step-by-step explanation:
so, -3 x -3 =9
helppp me
plssssssssss
Answer:
the answer is 94
Step-by-step explanation:
Answer:
Step-by-step explanation:
81^x=3 what are the same bases on both sides of the equation
81 = 3⁴, so
81ˣ = 3
(3⁴)ˣ = 3
3⁴ˣ = 3¹
which means
4x = 1
x = 1/4