Evaluate the function if x=-3
f(x) =1/2x-1
A. -2.5
B. 0.5
C. -4
D. -1
Answer:
A) -2.5
Step-by-step explanation:
You have to plug the x-value into the function.
f(x) = (1/2)x - 1
f(x) = 1/2(-3) - 1
f(x) = (-3/2) - 1
f(x) = -1.5-1
f(x) = -2.5
order from least to greatest 1/3, 5/12/, 1/6, 0.25
answer:
1/6, 0.25, 1/3, 5/12
step-by-step explanation:
whenever i have to order fractions least to greatest, i put them in decimal form. so 1/3 into a decimal would be 0.3333333; 5/12 into a decimal would be 0.4166666; 1/6 would be 0.1666666; and 0.25 is already a decimal. so it'd be 1/6, 0.25, 1/3, 5/12
A rectangular lot is 110 yards long and 80 yards wide. Give the length and width of another rectangular lot that has the same perimeter but a larger area.
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Answer:
ok i guess...
Step-by-step explanation:
Answer:
Thank you so much!
Step-by-step explanation:
The line AB is shown on the grid.
b)Find the equation of the line
perpendicular to AB and passing
through the midpoint of AB.
Step-by-step explanation:
a)
first step: find the gradient slope of line AB
A(-1,-2) B(7,2)
gradient=change in y/change in x
M=[2-(-2)]/[7-(-1)
M=4/8
M=1/2
the gradient of the straight line is given by
M1*M2=-1
1/2*M2=-1
multiply both sides by the reciprocal of 1/2
2*1/2*M2=-1*2
M2= -2.
b)
first find the mind point of line AB
A(-1,-2) B(7,2)
M.P=(x1+x2)/2 ,(y+y2)/2
M.P=(-1+7)/2 ,(-2+2)/2
M.P=6/2 ,0/2
M.P=3,0
ALSO THE GRADIENT PERPENDICULAR TO LINE AB IS;
M= -2
equation of a line perpendicular to AB and passes through the midpoint of AB
Y-Y1=M(X-X1). (3,0). M=-2
y-0=-2(x-3)
y= -2x+6
©
Express in the form n : 1
14:7
Answer:
n = 2
Step-by-step explanation:
14 = n
7 1
cross-multiply: 7n = 14
n = 2
WILL MARK YOU BRAINLIEST HURRY PLZ IM ON A TIME LIMIT
Answer:
Angle Y < Angle Z
Step-by-step explanation:
Answer:
angle X < angle Y
Step-by-step explanation:
........
PLEASE HELP! URGENT!! WORTH 50 POINTS!
which property is shown by -6 + 0 = -6?
1: Identity property of addition
2: Distributive Property
3: Associative property of addition.
Answer:
identity property of addition.
Step-by-step explanation:
basically it means any number plus zero is equal to the original number
x+0=x
Answer:
The answer will be number 1, idenity property of addition (:
Step-by-step explanation:
Oscar saves 40% of his monthly check for college. He earned $450 last month. How much money did Oscar save for college?
Answer
It is $180
Step-by-step explanation:
You do 450 times 40% and you get $180
please answer the slope of this graph
Answer:
The slope of the line = m = 2
Step-by-step explanation:
Taking two points from the line graph
(0, 0)(1, 2)Determining the slope between (0, 0) and (1, 2)
(x₁, y₁) = (0, 0)(x₂, y₂) = (1, 2)Using the formula
Slope = m = [y₂ - y₁] / [x₂ - x₁]
= [2 - 0] / [1 - 0]
= 2 / 1
= 2
Thus, the slope of the line = m = 2
1 point
When substituting y = 5x + 12 into the equation 3x - 2y - 32 = 0 to solve the
system, Jun determines that the value of y is
- a negative fraction only
- a positive fraction only
- a negative integer
- a positive integer
Answer:
A negative integer
Step-by-step explanation:
3x - 2(5x+12) - 32 = 0
3x - 10x - 24 - 32 = 0
-7x -56 = 0
-7x = 56, x = -8
y = 5(-8) + 12, y = -28
A rectangle measures 15 cm by 5 cm what is the area?
Answer:
75 cm squared
Step-by-step explanation:
15 times 5 is 75
please mark as brainliest!!!
Step-by-step explanation:
the answer is
a=l×w
15×5
=75cm²
PLEASE HELP!!! WILL GIVE BRAINLIEST!!!
The population of a town is growing by 2% every 3 years. There were
1,000 people living in the town in 1990. Which equation models the
population of the town, p, t years after 1990?
Answer:
Option B
Step-by-step explanation:
There are 1,000 people to start. It's growing by 2% every three year, so that would be 1.02%.
So p=1,000(1.02)^1/3
Answer:
b
Step-by-step explanation:
2. Bob the plumber charges $15 per hour plus a service fee of $40 for coming out to your house. Which function models this situation?
A) y=15x-40
B).y=15x+40
C) y=40x+15
D) y=15x
Answer:
B
Step-by-step explantion:
X is the amount of hours. Since they are charging 15 per hour you would have to multiply how many hours (x) by 15. Then add 40. And y equals the total amount pls mark brainliest
What is the slope-intercept equation of this line? A. y=-2x+6 B. y=2x+6 C.y=-1/2x+6 D.y=6x-2
Answer:
y = [tex]-\frac{4}{3}[/tex]x + 6
Step-by-step explanation:
y = mx + b
m: slope
b: y-intercept
y-intercept point on the graph is (0, 6) because it's the point that's on the y-axis.
Therefore, y-intercept is 6.
Slope: [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
Point A: (0, 6)
Point B: (4, -2)
Slope (m) = [tex]\frac{-2 - 6}{4 - -2}[/tex]
[tex]m = \frac{-2 - 6}{4 +2}[/tex]
[tex]m = \frac{-8}{6}[/tex]
[tex]m = -\frac{4}{3}[/tex]
y = [tex]-\frac{4}{3}[/tex]x + 6
Hope this helped! <3
What would be the equation of a line that passes through (3,-7), with a slope of -4/3?
Translate the sentence into an inequality.
The sum of 2 and b is less than 18.
Answer:
2+b<18
Step-by-step explanation:
A 12-foot ladder is leaning against a wall. The distance from the base of the wall to the base of the ladder is 6 StartRoot 2 EndRoot feet. Given this information, what can be determined about the triangle formed by the ground, wall, and ladder? Check all that apply. The triangle is isosceles. The leg-to-hypotenuse ratio is 1:StartRoot 2 EndRoot. The leg-to-hypotenuse ratio is 1:StartFraction StartRoot 2 EndRoot Over 2 EndRoot. The nonright angles are congruent. The ladder represents the longest length in the triangle.
Answer:
The leg-to-hypotenuse ratio is 1/√2
The ladder represents the longest length in the triangle.
Step-by-step explanation:
The set up in the question will b a right angled triangle
Length of the ladder will be the hypotenuse
The distance from the base of the wall to the base of the ladder is the adjacent
Height of the wall will be the opposite
Note that the longest side is always the hypotenuse (length of the ladder)
Given
length of the ladder = 12foot
The distance from the base of the wall to the base of the ladder = 6√2
The ratio of leg to hypotenuse = 6√2/12 = √2/2
√2/2 = √2/2 * √2/√2
√2/2 = √4/2√2
√2/2 = 2/2√2
√2/2 = 1/√2
Hence the leg-to-hypotenuse ratio is 1/√2
From the calculation the following are correct:
the leg-to-hypotenuse ratio is 1/√2
The ladder represents the longest length in the triangle.
Answer:
The leg-to-hypotenuse ratio is 1/√2
The ladder represents the longest length in the triangle.
The nonright angles are congruent
( B, D, E )
Step-by-step explanation:
Just did it on edge
3/5k - 5 = 7/10k HURRY
Answer:
k = -7Step-by-step explanation:
Given the expression
3/5k - 5 = 7/10k
We are to find the value of k
Cross multiply
3(10k) = 7(5k-5)
30k = 25k - 35
30k - 25k = -35
5k = -35
k = -35/5
k = -7
Hence the value of k is -7
PLEASE HELP!!
Nathan placed a beaker of ice water, at 0°C, on a
hot plate. The temperature rose by 4°C. What
was the new temperature?
Answer:
0+4=4
So new temperature was 4 degrees Celsius
Step-by-step explanation:
Please help me with the correct answer
Answer:
$50
Step-by-step explanation:
5= 26+4=30
6=30+4=34
7=34+4=38
8=38+4=42
9=42+4=46
10=46+4=50
Rose would be saving 50 dollars after 10 months. At first Rose only had $10 in 0 months and $14 in the next month and again.This means that every month it adds up to another $4. If you want to find the total or 10 months keep on add 5 4 times which is 20. Then add 30 from the 0-5 months and which gives you $50. So Rose would be saving up 50 bucks in 10 months.
what is the slope of this graph? it has to be simplified.
PLEASE ANSWER ASAP
Answer:
Linear
Step-by-step explanation:
It just is :)))))
Would it be B? Let me know
Answer:
whats the question?
Step-by-step explanation:
Am i right 73 points and no spamming
Enter the missing numbers in the boxes to complete the table of equivalent ratios
Answer:
yep
Step-by-step explanation:
ya you are right width is +5 and length is +2
What is the answer I got it wrong someone pls help
Answer:
Step-by-step explanation:
1st one
i need help with A 4ᵗʰ grade class divided into seven groups for a game. Each group has the same number of students. What could be the total number of students in the class? so can you help
Answer:
14, 21, or 28 would be the only answers I can think of
Step-by-step explanation:
7 teams of 2, 3, or 4 gives the answers
Find the exact length of the third side?
Answer:
57 for the third side
Step-by-step explanation:
a = √(c² - b²)
Need help with these
Answer:
3x
7-k
m/4
(5x)+12
Step-by-step explanation:
most of the words like and are just fillers. and basically means together in this instance
5 points, brainliest, and a 5-star rating.
Answer:
ill put them in order fof what they are from top to bottom
Step-by-step explanation:
5,2 ,1, 3, 4. and it starts from the 78 cents being equal to 5 they are in order.
‼️‼️‼️‼️‼️‼️‼️‼️‼️
A department store is having a sale.
a. Malcolm bought 6 bowls for $13.20. What is the unit rate?
b. The store is having a promotion. For every 8 glasses you buy, you get 3 free plates. Malcolm got 9 free plates. How many glasses did he buy?
c. The unit rate of the glasses was $1.80 per glass. How much did Malcolm spend on glasses?
Answer:
a. Unit rate is 2.2
13.20/6 = 2.2
b. 24
3 x 3 = 9
8 x 3 = 24
c. 43.2
24 x 1.8 = 43.2
Answer:
a. $2.20 / bowl
b. 24 glasses
c. $43.20
Step-by-step explanation:
Hope this helps!!! Please help me with my most recent question i really need help!