Answers
Answer:
x=0.5 / ½
the error in lin solution is on the second line
which is 2x(4-17).it suppose to be 8x-34x.
I think this is the answer and also the mistake was that Lin forgot to add the negative symbol after solving the equation when he did 2x (4-17)
Related Questions
Assignment #7
11. Which is the correct way to calculate 8!?
A) 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1
B. 8. 7.6.5.4.3.2.1
C. 7 + 6 + 5+ 4 + 3+2+1
D. 7.6.5.4.3.2.1
vertices?
Answers
Answer:
Step-by-step explanation:
That is a factorial, which is calculated by multiplying 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 (which is a really BIG number!) 40,320 to be exact!
what is the answer (31-19)×2+10
Answers
we will start with parentheses
31-19 = 12
So now we have 12 x 2 + 10
We then want to multiply
12 x 2 = 24
So now we have 24 + 10
24 + 10
So our final answer is 34
WALLAHI HELP ME PLEASE WALLAHI I BEG
Answers
Answer:
x+2 y-1
Step-by-step explanation:
this would be moving 2 over on x and subtracting down one on the y and a shrink
An artist is using right triangles in her design. If all the
triangles have an angle measure of 30°, what is the
measure of the third angle?
A) 150
B) 50
C) 60
D) 120
Answers
90+30=120. 180-120=60
Which means the third angle is 60 degrees
Maggie is buying movie tickets that cost $9.50 each of her total is 47.50 Before tax how many movie ticket did she purchase
Answers
Divide total spent by price per ticket:
47.50 / 9.50 = 5
5 tickets were purchased.
5th grade math. correct answer will be marked brainliest
Answers
Answer:
7/15 + 3/15 = 10/15 = 2/3
Step-by-step explanation:
Answer:
2/3
Step-by-step explanation:
[tex]\frac{7}{15} +\frac{1}{5}[/tex]
To solve this, you should have a common denominator, which is 15.
So, 7/15 can stay the same since it already has a denominator of 15.
Change 1/5 into a fraction with a denominator of 15. 15/5=3, so it would be 3/15
Solve: [tex]\frac{7}{15} +\frac{3}{15} =\frac{10}{15} =\frac{2}{3}[/tex]
if you borrow $400 for 3 years at an annual interest rate of 4% how much will you pay altogether?
Answers
Answer:
$448
Step-by-step explanation:
Can someone please help me ?
Answers
Answer:
Um, I feel like I don't have enough info to solve this
Step-by-step explanation:
According to the graph, how much money is spent on education?
8 million
16 million
12 million
4 million
Answers
Answer:
16
Step-by-step explanation:
My floor rug is 1/3 yard wide and 8/3 yards long. How many square yards of floor does the rug cover?
Answers
Answer:
the answer us 8/9
1/3 times 8/3= 8/9
Answer:
Step-by-step explanation:
we have 2 area rugs, and each has a length of 4 yards
Rug 1 has a area of 16 square yards, meaning that the width is also 4 yard(L*w=16, where Length=4)
Rug 2 has a Length of L=4 but the area is just 12 square yards, so here we have the width of 3 yards (12/4=3)
the rug number 2 will fit in tucker's bedroom
You buy a $90 item and it is discounted by $18. What is the discount's percentage?
Answers
Answer:
Hey the answer is 20%.
Step-by-step explanation:
You multiply the $90 with 20%,
but in order to figure that out you need to:
Calculate the savings: 20% of $90 = $18.
Subtract the savings from the original price to get the sale price: $90 - $18 = $72. You're all set!
A 29 foot rope is cut into two parts. the longer part is 2 feet longer than twice the shorter part. How long is each part
Answers
Answer:
longer:20 shorter:9
Step-by-step explanation:
what is half of 18 !!!
Answers
Answer:
9
Step-by-step explanation:
y= 2x - 1 , y - x = 4
Answers
Answer:
x=5 and y=9
Step-by-step explanation:
Sub 1 into 2
2x-1 - x = 4
x= 4+1
x= 5
y= 2(5)-1
y= 10-1
y= 9
Story Problem:
Avery purchased 4 tacos and 2 burritos and her total cost was $21. Sasha purchased 4 tacos and 3 burritos
and her total cost was $26.50. What is the price of one burrito?
Answers
Answer:
Step-by-step explanation:
Let tacos be x and burritos be y
So, Avery purchased 4x+2y = 21
Sasha purchased 4x+3y = 26.5
Solving the 2 eqns:
4x+2y=21
-4x-3y=-26.5
-y=-5.5
The cost of one burrito is $5.5
Among the senior class at a high school, 55% of Ms. Keating’s students plan on majoring in a branch of STEM, while 49% of Ms. Lewis’s students plan on majoring in a branch of STEM. Suppose Ms. Keating chooses 25 of her students at random and Ms. Lewis chooses 23 of her students at random. Since nKpK, nK (1 – pK) and nLpL, nL (1 – pL) are all greater than 10, the Normal condition is met. Let K = the proportion of Ms. Keating’s students from the sample who plan on majoring in a branch of STEM, and let L = the proportion of Ms. Lewis’s students from the sample who plan on majoring in a branch of STEM. What is the probability that the proportion of students who plan on majoring in a branch of STEM is greater for Ms. Keating?
Find the z-table here.
Answers
Answer:
0.662
Step-by-step explanation:
Edge
1O POINTS PLS ANSWER ASAP THANKS
Answers
Answer:
Step-by-step explanation:
The angle measuring 152 is split up, per se, into 2 angles. One of them is a 90 degree angle, as demonstrated by the little square that is above the 152. That 90 degree angle is on a straight line with the 28 degree angle and the angle measured as x. A straight line has a measure of 180. Therefore, 180 - 28 - 90 = x, so x = 62
HELP
what do you put in to login to edmentum I’m on a different computer and don’t know what to put in for the user and pass is it your email or is it your lunch number thingy
Answers
Answer:
the user should be your student id and the password should be your birthday
Step-by-step explanation:
Sharmila had 5/6 portion of the cake. She gave 2/6 portion of the whole cake to
her brother, then how much cake will remain with her?.
Answers
Answer:
4/6=2/3
Step-by-step explanation:
2/3 she will still have 2/3 of the cake
what are zeros of this function?
Answers
Answer:
Step-by-step explanation:
The zeros are the values of x for which y = 0. Those are the points where the graph crosses the x-axis.
The graph passes through (0,0), so x=0 is one of the zeros.
The graph passes through the third tick to the right—note it is x=6, not x=3!
x=6 is the other zero.
Which line segment is a chord of o C in the diagram below?
O A. AB
O B. DE
O C. BD
O D. AC
Answers
Answer:
A. AB
Step-by-step explanation:
line segment AB is a chord.
Which function is shown in the graph below?
On a coordinate plane, an exponential function shows decay. It rapidly decreases into quadrant 1 and approaches y = 1 in quadrant 1.
y = (one-half) Superscript x + 3 Baseline minus 1
y = (one-half) Superscript x minus 3 Baseline + 1
y = (one-half) Superscript x minus 1 Baseline + 3
y = (one-half) Superscript x + 1 Baseline minus 3
Answers
Answer:
Option B, y = 2 Superscript x + 2 Baseline + 3
Step-by-step explanation:
I could be wrong tbh. I graphed it on a graphing website and the graph from B matched up with the graph shown in the question.
Hope this helps Bye =)
The exponential function is given by [tex]y=(\frac{1}{2})^{x-3} +1[/tex]
Exponential functionAn exponential function is in the form:
y = abˣ
Where y,x are variables, a is the initial value of y and b is the multiplication factor.
The exponential function is given by [tex]y=(\frac{1}{2})^{x-3} +1[/tex]
From the point (0, 9):
[tex]y=(\frac{1}{2})^{0-3} +1=9[/tex]
Also at point (3, 2):
[tex]y=(\frac{1}{2})^{3-3} +1=2[/tex]
Find out more on Exponential function at: https://brainly.com/question/12940982
5 books cost $15. How much do 7 books cost?
Answers
So 3 x 7 = 21
$21
STEP BY STEP:
Each book is 3 dollars, so we multiply 7 by 3, and you get 21.
hope this helps
In the Special Right Triangle below, solve for the value of x. X = _____ (keep your answer in simplest radical form)
Options
6
6√3
6√6
12
12√2
18
12√3
Answers
Answer:
Step-by-step explanation:
It's a 30-60-90 triangle. The sides of a 30-60-90 triangle are in the ratio 1:√3:2
The side opposite the 90° angle is 12√3, so the side opposite the 30° is (12√3)/2 = 6√3.
The side opposite the 60° angle is (6√3)√3 = 18
x = 18
y = 6√3
Answer:
x = 18
y = 6√3
Step-by-step explanation:
<3
Nancy bought 2 packs of basketball cards for 3.78 each and 4 decks of basketballs cards for 7.38 each with 2 20 bills. How much change did Nancy get?
Answers
Answer:
3.78*2=7.56
7.38*4=29.52
29.52+7.56=37.08
220-37.08=182.92
For what value of y does 125=(1/25)^(y-1)?
Answers
Answer:
y = -1/2 is the answer to 125=(1/25)^(y-1)
Can someone help me? I’ll reward points + brainalist
Answers
Answer:
Option A is your answer ☺️☺️☺️
The square pool was turned into a rectangular one and it's area was enlarged by a factor of 5 by enlarging one side of the pool by 3 meters and the other side by 14. What are the new dimensions of the pool?
Answers
[tex] \boxed{ \tt{the \: dimensions \: are : }}\\ \boxed{ \tt{b = 9 \: meters} }\\ \boxed{ \tt{l = 20 \: meters}}[/tex]
[tex]5 {s}^{2} = (3 + s) \times (14 + s) \\ 5 {s}^{2} = {s}^{2} + 17s + 42 \\ {4s}^{2} - 17s - 42 = 0 \\ s = \frac{ - ( - 17) + \sqrt{ {( - 17)}^{2} - 4(4)(42)} }{2(4)} \\ s = \frac{17 + 31}{8} \\ s = 6 \\ hence \to \:the \: dimensions \: are : \\ b = s + 3 = 6 + 3 = 9 \: meters \\ l = s + 14 = 6 + 14 = 20 \: meters[/tex]
The new dimensions of the pool are; Width = 9 and Length = 20.
What is rectangular figure?A rectangular prism is a three-dimensional shape that has two at the top and bottom and four are lateral faces.
It is given that the square pool was turned into a rectangular one and it's area was enlarged by a factor of 5 by enlarging one side of the pool by 3 meters and the other side by 14.
[tex]5s^2 = (3+s)(14 +s)\\\\5s^2 =s^2+ 17s + 42\\\\4s^2 - 17s - 42 = 0\\\\[/tex]
The root of the expression;
[tex]s = \dfrac{-(-17) + \sqrt{-17^2 - 4(4)(42)} }{2(4)} \\\\s = 6[/tex]
The dimensions are;
Width = 3 + s = 9
Length = 14 + s = 20
Learn more about the rectangle here;
https://brainly.com/question/15019502
#SPJ2
According to a recent poll, 25% of adults in a certain area have high levels of cholesterol. They report that such elevated levels "could be financially devastating to the regions healthcare system" and are a major concern to health insurance providers. According to recent studies, cholesterol levels in healthy adults from the area average about 260 mg/dL, with a standard deviation of about 35 mg/dL, and are roughly Normally distributed. Assume that the standard deviation of the recent studies is accurate enough to be used as the population standard deviation. If the cholesterol levels of a sample of 49 healthy adults from the region is taken answer parts (a) through (d). A) What is the probability that the mean cholesterol level of the sample will be no more than 210? B) What is the probability that the mean cholesterol level of the sample will be between 205 and 215? C) What is the probability that the mean cholesterol level of the sample will be less than 200?D) What is the probability that the mean cholesterol level of the sample will be greater than 222?
Answers
Answer:
The answer is below
Step-by-step explanation:
The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:
[tex]z=\frac{x-\mu}{\sigma} \\\\for\ a \ sample(n):\\\\z=\frac{x-\mu}{\sigma/\sqrt{n} }\\\\where\ x=raw\ score,\mu=mean, \sigma=standard deviation[/tex]
Given that n = 49, μ = 260 mg/dL, σ = 35 mg/dL
a) For x < 210:
[tex]z=\frac{x-\mu}{\sigma/\sqrt{n} } =\frac{210-260}{35/\sqrt{49} } =-10[/tex]
From the normal distribution table, P(x < 210) = P(z < -10) = 0.0001
b) For x > 205:
[tex]z=\frac{x-\mu}{\sigma/\sqrt{n} } =\frac{205-260}{35/\sqrt{49} } =-11[/tex]
For x < 215:
[tex]z=\frac{x-\mu}{\sigma/\sqrt{n} } =\frac{215-260}{35/\sqrt{49} } =-9[/tex]
P(205 < x < 215) = P(-11 < z < -9) = P(z < -9) - P(z < -11) = 0.0001 - 0.00001 = 0.00009
c) For x < 200:
[tex]z=\frac{x-\mu}{\sigma/\sqrt{n} } =\frac{200-260}{35/\sqrt{49} } =-12[/tex]
From the normal distribution table, P(x < 200) = P(z < -12) = 0.00001
d) For x > 222:
[tex]z=\frac{x-\mu}{\sigma/\sqrt{n} } =\frac{222-260}{35/\sqrt{49} } =-7.6[/tex]
From the normal distribution table, P(x > 200) = 1 - P(z < -12) = 1 - 0.0001 = 0.9999
Sams fruit cellar earns a $0.40 profit for each apple that it sells and a $0.40 profit for each banana that it sells . What expression shows sams total profit from selling Apples(a) and banana (b)? Explain
Answers
Answer:
P = A*0.40 + B*0.40
Step-by-step explanation: Ok so, A is our apples right? THis would be our variable. As we sell more apples, the variable increases which means that our profits must add up for every one of those apples we sell. Repetive addition is multiplication, and it works perfectly for our scaling. Turns out this can also be used for the banana's because it's almost the same for the apples. However, it wants the TOTAL profits, which means we add the profits from the apples and banana's together.