Answer:
m=-5
Step-by-step explanation:
How many terms does the expression “ 4 + 5 - 2x - 3” have?
Answer:
4 terms
Step-by-step explanation:
each number or each coefficient/variable combo is a term.
Which is the independent variable in this graph?
population
straight lines
years
United States
Answer:
It’s years :)
Step-by-step explanation:
What is the slope of the line on the graph?
A. 1/2
B. -1/2
C. 2
D. -2
Answer:
b
Step-by-step explanation:
Bob has 10 apples after 4 hours he has 6 apples. Find the slope l the line that indicates the rate that bob eats apples at.
Answer:
y= -x + 10
Step-by-step explanation:
At 0 hours = Bob has 10 apples
At 4 hours = Bob has 6 apples
In 4 hours Bob has eaten 4 apples
Using linear graphs where y = the apples remaining and x = the hours passed
y = mx + c
We already know some coordinates:
(0,10) - 0 hours 10 apples remaining
(4,6) - 4 hours 6 apples remaining
c is the y intercept and m is the gradient
We already have the y intercept (where x = 0) which is (0,10)
So first part of our rule is done: y = mx + 10
The gradient is rise / run
Rise = -4 and Run = 4
-4/4 = -1
So the gradient is -1 and we add that to our rule
So final rule is y = -x + 10
Simplify: (2x - 5y)(7x-2y)
help plz
Answer:
14x+10y
Step-by-step explanation:
(2x-5y)(7x-2y)
(2x*7x)(-5y*-2y)
Twice a number plus four equals six
Step-by-step explanation:
Let say the unknown number we dont know is x
2x+4=6
2x=6-4
2x=2
x=2/2
x=1
So the unknown number is 1
Please help greatly appreciated :)
Step-by-step explanation:
we know ,
area of circle =πr^2
hence we get from the figure that the diameter of circle is 19 cm and we can find radius
r=d/2
r=18/2=9cm
area of semicircle =πr^2/2
area of Semi circle equals to =22*(9)^2/7/2
=127.2857143
Answer:
Today: Sunday, 11 October 2020
Hour: 23.05 WIB (Indonesian)
_________________________
D = 18
r = 18 ÷ 2 = 9
area of semicircle = πr²/2
area of semicircle = 3.142 . 9²/2
area of semicircle = 3.142 . 81/2
area of semicircle = 254.502/2
area of semicircle = 127.251 cm²
what is 1.25 times 10 to the 7th power in standard notation
Answer:
12,500,000. You simply move the decimal point over to the right 7 times.
How much is the interest on my loan?
I borrowed $400 to buy an MP3 player. I got a two-year loan,
and the lender is charging 8% Simple annual interest. How
much money will I have to pay back?
Time
Interest Principal
$ ?
$400
Rate
0.08
2
/= Prt
1 = 400 x 0.08 x 2
Interest
I
1.00
You will have to pay back a total of $464 over the course of the two-year loan, which includes the $400 principal plus $64 in interest.
What is Simple Interest ?
Simple interest can be defined as the ratio of product of principal amount , rate , time and hundred.
The interest on your loan can be calculated using the formula:
Interest = Principal x Rate x Time
In this case, the principal is $400, the rate is 8% (or 0.08 as a decimal), and the time is 2 years.
So, plugging in the numbers:
Interest = $400 x 0.08 x 2 = $64
Therefore, the total amount you will have to pay back is the sum of the principal and the interest, which is:
Total = Principal + Interest
= $400 + $64 = $464
Hence, You will have to pay back a total of $464 over the course of the two-year loan, which includes the $400 principal plus $64 in interest.
To learn more about Simple Interest from given link.
https://brainly.com/question/25845758
#SPJ1
While attending a baseball game, Eva buys hamburgers and hotdogs for her family. The number of hotdogs bought is five more than the number of hamburgers bought. Hamburgers cost $6.25 each and hotdogs cost $3.75 each. Eva spent a total of $58.75 on the hamburgers and hotdogs.
a) let n be the number of hamburgers Eva bought. Set up an equation that models the information given in the problem
b) how many hamburgers did Eva by?
I need a answer by Monday
Answer:
Number of hamburgers bought = 4
Number of hotdogs bought = 9
Step-by-step explanation:
Let
Number of hamburgers bought = n
Number of hotdogs bought = n + 5
Hamburgers cost = $6.25
Hotdogs cost = $3.75
Total cost = $58.75
6.25n + 3.75(n + 5) = 58.75
Open parenthesis
6.25n + 3.75n + 18.75 = 58.75
Collect like terms
6.25n + 3.75n = 58.75 - 18.75
10n = 40
Divide both sides by 10
n = 40 / 10
= 4
n = 4
Number of hamburgers bought = n = 4
Number of hotdogs bought = n + 5
= 4 + 5
= 9
Which equation is the slope-intercept form of the line that passes through (1, 2) and is parallel to the graph of y= 8/3x
A. y=8/3-2
B. y=8/3x- 2/3
C. y=8/3x- 3/2
D. y=8/3x + 2
Answer:
B, y = 8/3x - 2/3
Step-by-step explanation:
parallel lines have the
8/3x-2/3 is the slope-intercept form of the line that passes through (1, 2) and is parallel to the graph of y= 8/3x.
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
We need to find the slope-intercept form of the line that passes through (1, 2) and is parallel to the graph of y= 8/3x.
The slopes of parallel lines will be same.
Firstly let us find y intercept.
2=8/3(1)+b
2-8/3=b
-2/3=b
Hence, 8/3x-2/3 is the slope-intercept form of the line that passes through (1, 2) and is parallel to the graph of y= 8/3x.
To learn more on slope of line click:
https://brainly.com/question/14511992
#SPJ5
pleas help me quickly !
Answer:
-36
Step-by-step explanation:
-(36/-6) to the power of 2 is -36.
Please solve this question.(Quadratic equation)
Answer: 28
Step-by-step explanation:
Let x represent the digit in the tens place and y represent the digit in the ones place. xy → 10x + y
The square of the sum of the digits is 100.
EQ1: (x + y)² = 100 → x + y = 10
2 is subtracted from 3 times the number is the digits reversed.
EQ2: 3(10x + y) - 2 = 10y + x → 30x + 3y - 2 = 10y + x → 29x - 7y = 2
Solve the system of equations using the Elimination method:
EQ1: x + y = 10 → 7(x + y = 10) → 7x + 7y = 70
EQ2: 29x - 7y = 2 → 1(29x - 7y = 2 → 29x - 7y = 2
36x = 72
÷36 ÷36
x = 2
Substitute x = 2 into either of the equations to solve for y.:
EQ1: x + y = 10
2 + y = 10
y = 8
The digit is: 28
Find the mean of the set of numbers. Round to the nearest tenth, if necessary.
1, 1, 4, 8, 9, 3, 8
Answer:
4.85/ 4.90 rounded to nearest tenth
Step-by-step explanation:
1+1+4+8+9+3+8 = = 34
34/7 = 4.85
Answer:
4.9
Step-by-step explanation:
1+1+4+8+9+3+8 = 34
34 ÷ 7 = 4.857142857
Rounded = 4.9
whoever answers all correctly gets a brainliest.
if you answer incorrectly, I steal all your points.
if you look at the questions and leave, I will steal all your points.
if you answer with something like 'bfdiydf' or 'i don't know sorry' i will steal your points.
BRAINLIEST ANSWER!! REALLY EASY JUST NEED TO SHOW YOUR WORK!
-2x-10x+12=18
Answer:
x= -2.5
Step-by-step explanation:
Combine like terms, add 12 to both sides, then divide by the coefficient.
-2x-10x+12= 18
-12x+12=18
-12x=30
x=-2.5
The number of items on two grocery lists differs by 7. The total number of 1
items is 33. How many items are on each list? Use n as your variable.
Answer:
n=26
n=33
Step-by-step explanation:
Divide. Write your answer as a fraction in simplest form.
1/4÷(−3/8)=
Answer:
- 2/3 is the answer
Step-by-step explanation:
The angle of elevation of the top of a
tower from the top and foot of a pole of
height 10 m are 30° and 60°. Then the
height of the tower is
Answer:
15 m
explanation:
Let AB and CD be the pole and tower respectively. Let CD=h Then ∠DAC=60 ∘ and∠DBE=30 ∘ Now CA CD =tan60 ∘ = 3 ∴CD= 3 CA⇒ 3 h =CA Again BE DE =tan30 ∘ = 3 h ∴(h−10)= 3 BE = 3 CA ...[∵BE=CA] = 3 h/ 3 = 3 h ⇒3h−30=h⇒2h=30⇒h=15
Hence, height of the power =15 m
Please help me out for question 17
Welcome to the other MHN solving classes.
Let's see what to do ......
_________________________________
Step (1)
EC bisects BED ;
Thus : BEC = CED
_________________________________
Step (2)
Question told us that CED = 4 x + 1
Thus : BEC = CED = 4 x + 1
_________________________________
Step (3)
AD is a straight line which means its angle size is equal to 180° degrees.
So :
AEB + BEC + CED = 180
( 11x - 12 ) + ( 4x + 1 ) + ( 4x + 1 ) = 180
11x + 4x + 4x - 12 + 1 + 1 = 180
19x - 10 = 180
Plus sides 10
19x - 10 + 10 = 180 + 10
19x = 190
Divided sides by 19
[tex] \frac{19}{19}x = \frac{190}{19} \\ [/tex]
[tex]x = 10[/tex]
So : x = 10°
_________________________________
Step (4)
AEB = 11x - 12
AEB = 11(10) - 12
AEB = 110 - 12
AEB = 98°
******************************************************
BEC = CED = 4x + 1
BEC = CED = 4(10) + 1
BEC = CED = 41°
_________________________________
Step (5)
AEC = AEB + BEC
AEC = 98° + 41°
AEC = 139°
_________________________________
And we're done.....♥️♥️♥️♥️♥️
A chef made 30 donuts in 60 minutes. How long would it take him to make 90 donuts?
It is 180 just do 60 times 3 since 30 times 3 is 90 and you would figure out how long it take him.
Blake mows the neighbors' lawns to earn money. He earns $50 for 4 hours of mowing.
a. At what unit rate (dollars/hour) does Blake get paid?
Answer:
$12.50
Step-by-step explanation:
Answer:
$12.5/hr
Step-by-step explanation:
50/4=12.5 is the answer
f(x)= 1/x, vertically stretched by a factor of 7, reflected in the y-axis, translated 5 units to the right, and translated 3 units downward.
Answer:
-7/(x-5) - 3
Step-by-step explanation:
First off, to reflect an equation in the y axis, just multiply by -1. Now that it is reflected, to stretch an equation by a factor of 7, multiply it by 7. Now we have -7/x.
Then, to move an equation down by 3 units, simply subtract it by 3. Now we have -7/x - 3.
Lastly, since you want to translate it 5 units to the left, you want the equation to be undefined at x = 5 (because originally it is undefined at x = 0). To do that, set the denominator to x - 5. We arrive at our answer: -7/(x-5) - 3.
Using translation concepts, it is found that the new definition for the function is:
[tex]g(x) = -\frac{7}{x - 5} - 3[/tex]
----------------------------
The parent function is:
[tex]f(x) = \frac{1}{x}[/tex]
A vertical stretch by a factor of a means that the function is multiplied by a.Factor of 7, thus:[tex]g(x) = 7 \times \frac{1}{x} = \frac{7}{x}[/tex]
Reflection over the y-axis means that we have g(-x), thus:[tex]g(-x) = \frac{7}{-x} = -\frac{7}{x}[/tex]
Translating a units to the right is g(x - a), 5 units, thus:[tex]g(x) = -\frac{7}{x - 5}[/tex]
a units downward means that a is subtracted from the function, 3 units, thus:[tex]g(x) = -\frac{7}{x - 5} - 3[/tex]
A similar problem is given at https://brainly.com/question/19383602
How do I find w using this table?
The king gave Ron 6 gold coins.
He gave Polly 3 fewer coins than he gave Ron.
How many coins did Polly get?
Answer:
3 gold coins
Step-by-step explanation:
6 minus 3 is 3
Alex threw a ball into the air. Its height (in feet) above ground after x seconds is given by f(x) = –2(x – 4) + 23. What's the maximum height of the ball above ground?
A) 29 feet
B) 15.5 feet
C) 23 feet
D) 31 feet
Answer:
B)15.5
Step-by-step explanation:
please help !!!!! PLEASE !!!
Answer:
answer would be 120 degrees.
Step-by-step explanation:
because 4y+4+60=180
angle Q =4y+4
so 180-60=120
The sky ride at an amusement park spans 2,715 feet. Over the course of the day,
Anna rode the sky ride 7 times. How many feet did she ride?
A. 14,025 feet
B. 15,500 feet
C. 19,005 feet
D. 21,000 feet
Answer:
C. 19,005
Step-by-step explanation:
multipy 2,715 by 7
Find the slope and write an equation of the line which passes through the points. (−3, 9) and (−3, −5)
Answer:
Slope: undefined
Equation: x=-3
Step-by-step explanation:
To find the line that passes through the points, you first want to find the slope. The formula for slope is [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]. Once we have the slope, we can use any given point to plug in to find the y-intercept.
[tex]m=\frac{-5-9}{-3-(-3)} =\frac{-14}{0}[/tex]
We can see that the slope is undefined. If we look at the point, we notice that they both have the same x-coordinate. This let's us know that the equation is x=-3.
If you wanted to find the difference of 6/25-4/5,what common denominator should you choose?why?
Answer:
25
Step-by-step explanation:
25 should be chosen as the common denominator. 5 is a possible common denominator because the other fraction has a denominator of 5 and 25 is divisible by 5, however, the numerator cannot be evenly divided by 5. Attempting to do so would cause a much more difficult equation. On the other hand, the denominator 5 can be changed to 25 by multiplying by 5, and 4 can also be changed by multiplying by 5.
4/5 x 5 = 20/25
6/25 - 20/25 = -14/20 = -7/10