If AB = 2x – 5, BC = x – 2, and AC = 20,
find AB.
please help me out yall
Answers
Answer:
as the picture shown
Step-by-step explanation:
Related Questions
When evaluting an expression, is it easier to combine terms first or substitute values first? PLSSSS ANSWERRR ILL GIVE BRAINLIEST
Answers
Answer:
What do you mean by combining terms?
If you have an equation like y=3(2+x), then you would need to substitute for x before you combined the terms "2" and "x"
According to a Pew Research Center analysis of census data, in 2012, 15% of American adults ages 25 and older had never been married. If we repeatedly obtain random samples of 100 adults, what will be the mean and standard error of the sampling distribution of sample proportions?
Answers
Answer:
........................
Which equation represents the line that passes through
the point (10, 1) and is perpendicular to the graph of
2x - y = 7?
Answers
Answer:
x+2y=12
Step-by-step explanation:
I used DESMOS graphing calculator. I highly recommend it for problems like this.
6 is the ______ root of 36
Answers
6(6) = 36
Answer:
6 is the square root of 36
-7*3^0.25x=-10 what is the solution of the equation
Answers
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
x = 1.08547955
Write the fractional equivalent (in reduced form) to each number
10
0.125 =
0.16
Answers
0.125 —> 1/8
0.16 —> 4/25
josie walks 3/4 miles in 1/5 hour. what is josie’s speed in miles per hour
Answers
Answer:
Speed = 3.75 miles per hour.
Step-by-step explanation:
Speed can be defined as distance covered per unit time. Speed is a scalar quantity and as such it has magnitude but no direction.
Mathematically, speed is given by the equation;
[tex]Speed = \frac{distance}{time}[/tex]
[tex]S = \frac{d}{t}[/tex]
Given the following data;
Distance, d = 3/4 miles
Time, t = 1/5 hour
Substituting into the equation, we have;
[tex]Speed, S= \frac{3/4}{1/5}[/tex]
[tex]Speed, S = \frac{3}{4}*5[/tex]
[tex]Speed, S = \frac{15}{4}[/tex]
Speed, S = 3.75mph.
Therefore, Josie's speed is 3.75 miles per hour.
What is the answer to
5 + 3 x 3x -2 X=2
Answers
Answer:
x = 1/6
Step-by-step explanation:
Mr. Johnson listed each class’s average on a quiz in fraction form. Based on the chart, Which shows the classes ordered from the highest average to the lowest average?
A. C,D,A,B
B. C,A,D,B
C. B,D,A,C
D. B.A,D,C
Answers
Answer:
C
Step-by-step explanation:
I'm not sure if my picture made since because I'm not the best at drawing but that's how I'd explain it
Find the critical value ze necessary to form a confidence interval at the level of confidence shown below
C=0.81
Zc
Answers
Answer:
1.31
Step-by-step explanation:
Helppppppp pleaseee okkkk
BRAINLEST POINTS 100
Answers
Answer:
7/10
Step-by-step explanation:
At a bake sale, students sold 145 chocolate chip cookies, 95 oatmeal cookies, and 87 sugar cookies. What percent of the cookies sold were oatmeal? Round to the nearest tenth
Answers
Answer:
29.05% of cookies sold were oatmeal cookies.
Step-by-step explanation:
Students sold chocolate chip cookies = 145
Students sold oatmeal cookies = 95
Students sold sugar cookies = 87
Total cookies sold = 145+ 95 + 87
Total cookies sold= 327
The formula used to find percentage is : [tex]Percentage = \frac{part}{whole}*100[/tex]
Now, finding percent of the cookies sold that were oatmeal
Percentage of oatmeal cookies sold = [tex]\frac{95}{327}*100[/tex]
Percentage of oatmeal cookies sold = 29.05 %
So, 29.05% of cookies sold were oatmeal cookies.
A jogger is running home. His distance from home, as a function of time, is modeled by y=-7x +8.
Which statement best describes the function?
A. The function is nonlinear.
B. Not enough information is given.
C. The function is linear at some points and nonlinear at other points.
D. The function is linear.
Answers
Answer: the function is a liner
Step-by-step explanation: trust
What number represents the same amount as 8 hundreds + 10 + 0 ones?
Answers
Answer:
810
Step-by-step explanation:
hope it help you ☺☺....
WILL MARK AS BRAINLIEST!!!!!
Answers
explanation: -1-4=-5 0-4=-4 1-4=-3 2-4=-2
write the equation in slope-intercept form. y - 2 = 6 (x + 1)
Answers
Answer:
y=6x+8
Step-by-step explanation:
Write in slope-intercept form, y=mx+b.
Evaluate the expression 16!/12!4!
Answers
Answer: Sorry i don't really understand the question
Step-by-step explanation:
16!/12!4!
16x15x14x13/ 4x3x2x1 = 43680/24 = 1820
See the photo for the entire worked problem.
Juan got grades of 68 and 73 on his first two math tests. What grade must he get on the third test if all were weighted equally and he wants to raise his grade to a 75 average?
Answers
Answer: 84
Step-by-step explanation: Multiply 75 by 3. That is 225, and is the value the three numbers must add up to. 73+68=141. 225-141 is 84.
If 1 inch represents 10 miles on a map then how many inches will represent 120 miles ?
Answers
Answer:
12 inches
Step-by-step explanation:
We can write this as a proportion:
inches/miles = inches/miles
1/10 = x/120
Solving for x, we get 12 inches.
simplify (3x+2) (y-2) - (7y+3) (y-3)
Answers
Answer:
3 x y − 7 y 2 − 6 x + 20 y + 5
Step-by-step explanation:
-4x+6y=-7
-13x-2y=-4
Elimination or substitution
Answers
Answer:
substitution
Step-by-step explanation:
Please find measure of angle s. PLEASE HELP FAST!!
Answers
Answer:
27
Step-by-step explanation:
15x-31 = 9x+11
6x-31 = 11
6x = 42
x = 7
15x -31 + 9x + 11 + s = 180
15(7) -31 + 9(7) + 11 + s = 180
105 - 31 + 63 + 11 + s = 180
153 + s = 180
s = 27
please help with this question
Answers
Answer:
Rotation
Step-by-step explanation:
Rotation around the origin I believe
help help help help help help help help help help
Answers
Answer:
27
Step-by-step explanation:
Answer:
the answer its 31
Step-by-step explanation:
and first 21 : (2+1) x 5- 2^2
21 : 3 x 5 -2^2
7x5- 2^2
35-4
31
I hope you understand
Does anyone know the solution to this question
Answers
Answer:
Graph A
Step-by-step explanation:
3x+y=5
y=-3x+5
4x-y=2
-y=-4x+2
4=2x-2
Bill manages a restaurant. He schedules most of his employees to work on saturdays and fridays at night. If 24 of the 40 employees work at night, what percent of the employees work during the day? Pls answer asap! Will mark as brainlist!
Answers
Answer:
40%
Step-by-step explanation:
40-24=16
16/40 ×100 =40%
Suppose the graph of a cubic polynomial function
has the same zeroes and passes through the
coordinate (0, -5).
Describe the steps for writing the equation of this
cubic polynomial function.
DONE
Answers
Answer:
Use the zeroes to determine the roots.
Write the polynomial as a product of the leading coefficient, a, and the factors, where each factor is x minus a root.
Use the y-intercept (0, –5) to solve for the leading coefficient.
Substitute the leading coefficient into the polynomial function for a and simplify.
Step-by-step explanation:
What is the slope m in the equation y = -2x + 5
Answers
Answer:
m = -2
General Formulas and Concepts:
Slope-Intercept Form: y = mx + b
m - slope
b - y-intercept
Step-by-step explanation:
Step 1: Define function
y = -2x + 5
Step 2: Break function
Slope m = -2
y-intercept (0, 5)
A auto manufacturer claims that one of its car brands has mean MPG (miles per gallon) rating of 40 on the highway. Identify Type I error for this claim.
a. Fail to reject the claim that mean is 40 MPG when it is actually 40 MPG.
b. Fail to reject the claim that mean is 40 MPG when it is actually not 40 MPG.
c. Reject the claim that mean is 40 MPG when it is actually not 40 MPG.
d. Reject the claim that mean is 40 MPG when it is actually 40 MPG.
Answers
Answer:
d. Reject the claim that mean is 40 MPG when it is actually 40 MPG.
Step-by-step explanation:
The type 1 error could be said to have been made if the null hypothesis is erroneously rejected.
In the scenario above :
The null hypothesis (H0) : mean = 40
Hence, if the Null hypothesis defined above is rejected when in fact the hypothesis that the mean miles per gallon is actually 40.
On the other hand, the type 2 error occurs when a null which is false is not rejected.
Hence, when a true null is rejected, a type 1 error is committed. Similarly, when a false null isn't rejected, then a type 2 error has been committed.
hope this photo helps.enjoy
Liam had a container of oatmeal that contained 5 and one-half cups of oatmeal. Liam ate StartFraction 4 over 9 EndFraction cup of oatmeal every morning before school for a week. Which is the best estimate of the number of cups of oatmeal that Liam had left in the container at the end of the five-day week?
2 and one-half
3
3 and one-half
5
Answers
Answer:
3
Step-by-step explanation: