Please help me on this question. First to answer will be the brainliest :D
Solve for t.
6t - 7 = 7t
Answer:
t=−7
Step-by-step explanation:
FIRST
Shelby rode her motorcycle 77 kilometers down a straight freeway at a constant velocity. She rode that distance in 1.4 hours. What was her velocity?
Answer:
the answer Is 277.2
Step-by-step explanation:
V=277.2
A line passes through the point (-2,3) and has a slope of 5/2
Write an equation in SLOPE-INTERCEPT form for this line.
Answer:
y=5/2+3
Step-by-step explanation:
whats the slope of
(0,1)& (4,-19) helpppp
Answer:
-5
Step-by-step explanation:
m = y2 - y1
x2 - x1
-19 - 1 = -20
4 - 0 = 4
-20/4 = -5
Answer:
The slope is -5x
Step-by-step explanation:
Use this formula [tex]\frac{y2-y1}{x2-x2}[/tex]
Now plug in your numbers.
[tex]\frac{-19 - 1}{4 - 0} \\\frac{-20}{4} \\[/tex]
-20 ÷ 4 = -5
Hope this helps ya!!
Chelsea spent half of her weekly
allowance playing arcade games. To earn
more money her parents let her clean the
windows in the house for $10. What is
her weekly allowance if she ended with
$18?
Answer:
I believe it would be 16
Step-by-step explanation:
8 is half of 16 and if she had 8 dollars after spending half her allowance, she would've had 16 as her allowance
Final answer: Her allowance would be 16 dollars
Consider the multivariable function f\left(x,y,z\right)=\frac{x^3-2.5y^2+\frac{z}{2}}{z\left(x-y\right)}f ( x , y , z ) = x 3 − 2.5 y 2 + z 2 z ( x − y ). Evaluate f\left(2,3,1\right)f ( 2 , 3 , 1 ). Round your answer to two decimal places.
Answer:
[tex]f\left(2,3,1\right)=\bold{14}[/tex]
Step-by-step explanation:
Given the function:
[tex]f\left(x,y,z\right)=\frac{x^3-2.5y^2+\frac{z}{2}}{z\left(x-y\right)}[/tex]
To find:
The value of [tex]f(2, 3, 1)[/tex] = ?
Solution:
[tex]f(2, 3, 1)[/tex] means the values of [tex]x, y\ and\ z[/tex] as:
[tex]x=2\\y=3\\z=1[/tex]
Let us put the given values in the given function and let us solve for it:
[tex]\Rightarrow f\left(2,3,1\right)=\dfrac{2^3-2.5\times 3^2+\frac{1}{2}}{1\left(2-3\right)}\\\\\Rightarrow f\left(2,3,1\right)=\dfrac{8-2.5\times 9+0.5}{1\left(-1\right)}\\\\\Rightarrow f\left(2,3,1\right)=\dfrac{8-22.5+0.5}{-1}\\\\\Rightarrow f\left(2,3,1\right)=\dfrac{-14}{-1}\\\\\Rightarrow f\left(2,3,1\right)=\bold{14}[/tex]
Therefore, the answer is:
[tex]f\left(2,3,1\right)=\bold{14}[/tex]
Ava takes 4 breaths every 10 seconds during yoga. At this rate, how many breaths would Ava take in two minutes? *
Answer:
48
Step-by-step explanation:
It's given that Ava takes 4 breaths every 10 seconds.
4 breaths : 10 seconds. ...(1)
To solve this, first we need to calculate how many seconds there are in two minutes.
As 60 seconds make up one minute, 120 seconds make up two.
Now, to solve for the number of breaths (x), we just multiply (1) by 12. We do this so that we get 120 seconds on the right side, so the left side will give us the answer we need.
4 × 12 breaths : 10 × 12 seconds
48 breaths : 120 seconds.
So, the final answer would be 48 breaths.
Hope this helps! :D
In 1982, Wayne Gretsky set a record for the greatest number of hockey goals in one season with 92 goals. If a player has scored 60 goals this season and averages 2 goals per game, how many additional games must he play to break the record? Write an inequality.
Answer:16
Step-by-step explanation:if he scores 2 goals a game then all you have to do is minus 60 from 92 and divide it by two
92-60= 32goals needed
32/ 2 goals a game = 16 games
What x value sloves the equation .
3x-5=1
PLEASE HELP!!! BRAINLIEST FOR FIRST
Find the length of k ____
Answer:
K=3
Step-by-step explanation:
I think so, if I’m wrong I’m sorry
Answer:
Step-by-step explanation:
[tex]\frac{9}{12}[/tex] = [tex]\frac{k}{k+4}[/tex]
12k = 9(k + 4)
12k - 9k = 36
3k = 36
k = 12
PLEASE HELP ME!!!!!!!!!!!!!!
Answer:
f(-1) = -6
Step-by-step explanation:
[tex]f(x) = (x+2)^{2}-6[/tex] for [tex]x\neq -1[/tex]
[tex]f(x) = -6[/tex] for x = -1
f(-1) means x=-1, so we can't use the first expression.
Bobby has 36 toy cars with stickers on them. Each car has 2 red stickers and one blue sticker. Which expression represents the total number of stickers on the 36 cars?
Given:
Total number of cars = 36
Each car has 2 red stickers and one blue sticker.
To find:
The expression that represents the total number of stickers on the 36 cars.
Solution:
Total number of cars = 36
Each car has 2 red stickers and one blue sticker. So,
Total number of stickers on each car = (2+1)
Total number of stickers on 36 car = 36(2+1)
= 36(3)
= 108
Therefore, the required expression for the total number of stickers on the 36 cars is 36(2+1) and the total number of stickers is 108.
PLEASE HELP ASAP & ANSWER QUESTIONS IN PHOTO
Answer:
false
Step-by-step explanation:
what value of x makes this equation true? 15-7x=5x-21
Answer:
x=3
Step-by-step explanation:
15-7x=5x-21
12x=36
x=3
need help w math question
Answer:
y = P • (1+r)^t
Balance after 2 years: $3307.5
Step-by-step explanation:
To answer this question, we will use standard equation that calculates bank interests:
A = P(1+(r/n))^(n•t)
It might seem complicated, but let's explain:
A - amount of money after the time period
P - principal amount, the amount of money you started with
r - interest rate, in decimal numbers
n - number of times interest is being calculated per year
t - number of years
Since here, interest is annual, n = 1, so our equation is:
A = P(1+r)^t
P = $3000
r = 5% = 0.05
t = 2 years
A = 3000(1+0.05)^2
A = 3000•(1.05)^2
A = $3307.5
PLEASE ANSWER ASAP WILL GIVE BRAIN
Answer:
Y = -3/4 + 7
Step-by-step explanation:
7 is the y intercept
-3/4 is the slope
. The circumference of Earth’s moon is about 1,091,500,000 cm. Write this number in scientific notation. *
1.0915 x 10{9} <----Exponet
So yeah this is easy but my brain cell are not working proproly so....
Can you help me find H Plz be fast grades are due tonight
(Answer Only)
Answer:
-12
Step-by-step explanation:
h/6 -1 = -3
h - 6 = - 18
h = -18 + 6
h = -12
Answer:
h= -12
Step-by-step explanation:
-12/6= -2
-2- 1 = -3
-3= -3
what is the rate of change of the function?
I hope it is helpful for you ....
Jayda takes her dog Rolo to obedience training once each week. Jayda bought a box of 969696 dog treats and split them evenly into bbb bags. Each bag contains 161616 treats.
Write an equation to describe this situation.
9514 1404 393
Answer:
16b = 96
Step-by-step explanation:
There are many aspects of "this situation" for which we could write equations. Perhaps the one that is of interest is ...
b bags of 16 treats each will total 96 treats
16b = 96
To paint a house, a painting company charges a flat rate of $500 for supplies, plus $50 for each hour of labor. a. How much would the painting company charge to paint a house that needs 20 hours of labor?
Answer:
For 20 hours it would be $1,500.
Step-by-step explanation:
The equation for this problem would be Y = 50x + 500.
Y is the total charge and x is the number of hours.
Hope this helps! Sorry if it was not what you were looking for!
Answer: 1500
Step-by-step explanation: 50x20=1,000 plus the addition price of the supplies 1,000+500= $1500
What function is Y=M(X) +b used for? *
Answer:
Used for Linear Graphs
Step-by-step explanation:
Y=mx = b
m represents the slope/gradient of the graph
b represents the y intercept
The 2018 Current Population Survey (CPS) estimates that 19.7% of Mississippians live in poverty, which makes Mississippi the state with the highest poverty rate in the United States. If we take a random sample of 250 Mississippians, what is the probability that at least 25% of them live in poverty?
Answer: 0.0265
Step-by-step explanation:
Given: The proportion of Mississippians live in poverty, which makes Mississippi the state with the highest poverty rate in the United States. : p = 19.7% = 0.197
Sample size : n= 250
The probability that at least 25% of them live in poverty will be
[tex]P(\hat{p}\geq0.25)=P(\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\geq\dfrac{0.25-0.197}{\sqrt{\dfrac{0.25\times0.75}{250}}})\\\\=P(Z>\geq1.9353)\\\\=1-P(Z<1.935)\\\\=1-0.9735\ \ \ \ [\text{By p-value table}]\\\\=0.0265[/tex]
Hence, the required probability = 0.0265
Which property should be used next in this solution process?
3x + 2 + 3 = 7(x - 1) – 4
3x + 5 = 7(x - 1) – 4
A. Commutative Property of Addition
B. Identity Property of Multiplication
C. Associative Property of Multiplication
D.
Distributive Property
Answer:
niwebfasfbjsdfb
Step-by-step explanation:
jsdfhsdbfjhadsjbdsfhb
Please help I have no idea what the answer is
Answer:
59
Step-by-step explanation:
The total amount of angles in a triangle with equal 180 degress
Answer:
Step-by-step explanation:
83° + 38° + x° = 180°
121 + x = 180
x = 59
express 75 as a product of its prime factors
Answer:
Step-by-step explanation:
The prime factor of the product 75:
Factors of 75
1,3, 5, 15, 25, 75
or for the prime factorization of 75
3 x 5 x 5, which can also be written 75 = 3 x 5².
Hope this help :)
Answer:
3 × 5 × 5
I hope this helps!
*PLEASE ANSWER, I DON"T GET IT*
Which compound inequalitiy represents the inequality |y – 3| − 4 ≤ −3?
a.) −1 ≤ y – 3 OR y – 3 ≤ 1
b.) y – 3 ≤ −1 AND y – 3 ≥ 1
c.) −1 ≤ y – 3 AND y – 3 ≤ 1
d.) y – 3 ≤ −1 OR y – 3 ≥ 1
The compound inequality represents the given inequality is y-3≤1 OR -1≤y-3. Therefore, option A is the correct answer.
The given inequality is |y – 3| − 4 ≤ −3.
What is compound inequality?A compound inequality is a sentence with two inequality statements joined either by the word “or” or by the word “and.” “And” indicates that both statements of the compound sentence are true at the same time. It is the overlap or intersection of the solution sets for the individual statements. “Or” indicates that, as long as either statement is true, the entire compound sentence is true. It is the combination or union of the solution sets for the individual statements.
Now, solve inequality |y – 3| − 4 ≤ −3.
Add 4 on both sides of the inequality.
That is, |y – 3| − 4+4 ≤ −3+4
y-3≤1 OR -1≤y-3
The compound inequality represents the given inequality is y-3≤1 OR -1≤y-3. Therefore, option A is the correct answer.
To learn more about compound inequality visit:
https://brainly.com/question/20296065.
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please help! will give brainliest
Answer:
Step-by-step explanation:
y-2=3(x-5)
y-2=3x-15
Slope intercept form is y=3x-13
y-12= -2(x-3)
y-12= -2x+6
Slope intercept form is y= -2x+18
“Write a linear equation that is perpendicular to 2x-5y=5 and passes through the point (2,-9).
So first I made it into the Slope Intercept Form which would be -5y=-2x+5, then I divided everything by -5 (from the -5y) and got y=2/5-1.
After that I realized it was perpendicular (and this is where I got confused) I switched it to y=-5/2-1. (yeah I think it’s wrong)
Then I put it in the Point slope formula making it to be y-(-9)=-5/2(x-2). So that would be y+9=(-5/2)x+5.
So the product after doing the -9 from each side, would it be y=(-5/2)x-4?
The correct equation of the line that is perpendicular to 2x - 5y = 5 and passes through the point (2, -9) is y = (-5/2)x - 4.
Here,
Let's go through the steps again and find the correct equation for the line that is perpendicular to 2x - 5y = 5 and passes through the point (2, -9).
Step 1: Convert the given equation into slope-intercept form.
2x - 5y = 5
Subtract 2x from both sides:
-5y = -2x + 5
Now, divide everything by -5 to isolate y:
y = (2/5)x - 1
So, the slope of the given line is 2/5.
Step 2: Find the slope of the line perpendicular to the given line.
For two lines to be perpendicular, their slopes must be negative reciprocals of each other.
The negative reciprocal of 2/5 is -5/2.
Step 3: Write the equation of the line using the point-slope form.
Now that we have the slope (-5/2) and a point (2, -9), we can use the point-slope form of the linear equation:
[tex]y - y_1 = m(x - x_1)[/tex]
where m is the slope, and [tex](x_1, y_1)[/tex]is the given point.
Substitute m = -5/2 and [tex](x_1, y_1)[/tex] = (2, -9):
y - (-9) = (-5/2)(x - 2)
Simplify:
y + 9 = (-5/2)x + 5
Now, isolate y by subtracting 9 from both sides:
y = (-5/2)x + 5 - 9
y = (-5/2)x - 4
So, the correct equation of the line that is perpendicular to 2x - 5y = 5 and passes through the point (2, -9) is y = (-5/2)x - 4.
To learn more on equation click:
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A set of biology exam scores are normally distributed with a mean of 707070 points and a standard deviation of 666 points. Let XXX represent the score on a randomly selected exam from this set. Find P(64
Answer:
[tex]P(64<x<76)=0.68[/tex]
Step-by-step explanation:
Given that, the mean, [tex]\mu[/tex], and the standard deviation, [tex]\sigma[/tex], of normally distributed exam score are :
[tex]\mu=70[/tex]
[tex]\sigma=6[/tex]
Let [tex]x[/tex] represent the score on a randomly selected exam from this set
The z-score, for the randomly selected exam score x:
For 64<x<76, the range of z-score is
[tex]\frac{64-70}{6}<z<\frac{76-70}{6}= -1<z<1[/tex]
Now, from the z-score table, the value for z=-1 is the probability for x<64.
As the value for z=-1 is 0.15866, so
P(x<64)=0.15866.
Similarly, the value for z=0.67 is 0.84134, so
P(x<76)=0.84134
So, [tex]P(64<x<76)= P(x<76)-P(x<64) \\\\[/tex]
[tex]\Rightarrow P(64<x<76)=0.84134-0.15866=0.68268.[/tex]
Hence, [tex]P(64<x<76)=0.68[/tex]
Answer:
0.68
Step-by-step explanation:
khan