Answers
Answer:
Step-by-step explanation:
2) ∠A + ∠B = 146 {Exterior angle theorem}
5y + 3 + 4y + 8 = 146
5y + 4y + 3 + 8 = 146 {combine like terms}
9y + 11 = 146
9y = 146 -11
9y = 135
y = 135/9
y = 15
3) m∠A = 5y + 3
= 5*15 + 3
= 75 + 3
∠A = 78
4) m∠B = 4y + 8
= 4*15 + 8
= 60 + 8
m∠B = 68
5) m∠ACB + m∠A + m∠B = 180 {Angle sum property of triangle}
m∠ACB + 78 + 68 = 180
m∠ACB + 146 = 180
m∠ACB = 180 - 146
m∠ACB = 34
Related Questions
help asap! Identify the function shown in this graph.
Answers
Answer:
A
Step-by-step explanation:
Using the formula y=mx+b we see the b (the y intercept) is at -1. Only answer choice A and B have a y intercept at -1. Now we check which one of those will correspond with the negative slope. A is negative and B is positive --> A is the correct answer choice.
What is the relationship between two similar quadrilaterals and their areas?
Answers
Quadrilaterals with same length and breadth or height have same areas.
Step-by-step explanation:
You can prove this by drawing two quadrilaterals individually and then by calculating there areas.
100PTS PLEASE GIVE EXPLANATION
(I really need help please)
2x + 6y= 12
X + 3y= 6
In solving the system of equations shown above, Sean showed the following steps:
Step 1: x = 6 – 3y
Step 2: 2(6-3y) + 6y = 12
Step 3: 12 – 6y + 6y = 12
Step 4: 12 = 12
Sean’s work is correct. However, there are no variables in Sean’s final step. What can he state as the solution of the system?
Answers
Answer:
The system has infinitely many solutions
Step-by-step explanation:
There are no variables left. And the final equation is correct.
It means the system is going to be correct for any value of variables. So there are infinitely many solutions
Answer:
Step-by-step explanation:
There are two equations in the question
[tex]2x+6y=12\ -->Equation\ 1\\\\x+3y=6\ -->Equation\ 2\\\\[/tex]
If we take 2 common from the first Equation it becomes,
[tex]2(x+3y)=12\\\\x+3y=12/6\\\\x+3y=6\\[/tex]
Now we can see that both the Equations are similar which means they would have the same graph.
Since both the equations have the same equation of line they have infinitely many solutions which means both the lines intersect at each and every point on the line, since both the lines are on top of each other.
We can also see that in Step 4 where 12 = 12 there are no variables in the equation which also means that the work is correct and Sean can say that the system of equations is consistent and dependent which means they have infinite number of solutions
Write a compound inequality that represents the following phrase.
all real numbers that are between -4 and 8
A. -4< n<8 B.-4< n< 8
........._................._.. _
C.-4<n< 8 D.-4<n<8
............_
Answers
Answer:
A. -4< n<8 B.-4< n< 8
Step-by-step explanation:
Answer:
D.-4<n<8
Step-by-step explanation:
Junior's brother is 1\dfrac121 2 1 1, start fraction, 1, divided by, 2, end fraction meters tall. Junior is 1\dfrac151 5 1 1, start fraction, 1, divided by, 5, end fraction of his brother's height.
Answers
Answer:
1 4/5 meters
Step-by-step explanation:
Juniors brother = 1 1/2 meters tall
Junior is 1 1/5 of his brother height
Junior = 1 1/5 of 1 1/2
= 6/5 × 3/2
= 6 * 3 / 5 * 2
= 18/10
= 1 8/10
= 1 4/5 meters
Junior is 1 4/5 meters tall
Answer:
1 4/5
Step-by-step explanation:
its on khan (: trust me
f(x)=x^2-4x-12 on (0,6)
Answers
the answer is
(x,345)
find the slope of the given line
Answers
Answer:
6/5
Step-by-step explanation:
Answer:
the slope is -6/5
Step-by-step explanation:
If f(x) = 7(x - 1) + 8, find the value of f(1)
answer fast.
Answers
Answer:
7x+1
Step-by-step explanation:
Use the distributive property to multiply 7 by x−1.
7x−7+8
Add −7 and 8 to get 1.
7x+1
Juanita constructed a number line to test her brother's understanding of opposites. She tested him on all points that were labeled with letters. Her brother had trouble representing the opposite of point A. A number line going from negative 20 to positive 20 in increments of 5. The points are: negative 20, blank, A, B, 0, 5, C, blank, D. Which represents the opposite of Point A? Negative (negative 10) Negative (negative 5) 0 Negative (10)
Answers
Answer: Negative (negative 10)
Step-by-step explanation:
Given that:
- 20, blank, A, B, 0, 5, C, blank, D in Increment of 5
-20, - 15, - 10, - 5, 0, 5, 10, 15, 20
The point A on the number line is - 10 ;
The opposite of point A : will be
- (point A) = - (-10)
The opposite of point A should be (10) which is the equivalent point to the right of the number line and can be represented as - (-10)
Answer:
-(-10)
Step-by-step explanation:
the other person is correct
edge 2020/2021
Pls I NED HELP ASAP I ONLY HAVE 10 MINUTES
Answers
Answer:
20
Step-by-step explanation:
when a letter and a number are next to each other u have to multiply, so x is 5 so 3 x 5 is 15. 15 plus 5 is 20 so 20 is ur answwer
Answer:
20
Step-by-step explanation:
x= 20
3x+5 replace x with 5 than do 3x5=15+5=20
Ian has 3/4 of an hour to work on math problems before he leaves for track practice each problem takes 1/12 of an hour how many problems will ian be able to finish before leaving
Answers
Answer:
9
Step-by-step explanation:
Since Ian has 3/4 of an hour that is 45 minutes left till practice and it takes 5 minutes per question so he will have 9 questions finished
9514 1404 393
Answer:
9 problems
Step-by-step explanation:
The number can be found by dividing the time by the rate.
(3/4 h)/(1/12 problems/h) = (9/12)/(1/12) problems = 9/1 problems
= 9 problems
Ian can finish 9 problems before leaving.
Please help..
Solve for x and y rounded to the nearest hundredth.
x = 5.33 and y = 4.67
x = 4.67 and y = 5.33
x = 10.5 and y = 12
x = 3.42 and y = 3
Answers
Step-by-step explanation:
A is answer
Equation
y = 3 + 2x
What is the slope? Please help!!! Thank you!
Answers
I posted this and dont how to remove
In the past, the mean running time for a certain type of flashlight battery has been 9.7 hours. The manufacturer has introduced a change in the production method and wants to perform a hypothesis test to determine whether the mean running time has increased as a result. The hypotheses are: H 0: μ = 9.7 hours H a: μ > 9.7 hours where μ is the mean running time of the new batteries . Explain the meaning of a Type I error.
Answers
Answer:
Step-by-step explanation:
From the information given:
[tex]\mathbf{H_o: \mu = 9.7 \ hours}[/tex]
[tex]\mathbf{H_1: \mu > 9.7 \ hours}[/tex]
The type 1 error is rejecting [tex]\mathbf{H_o}[/tex] when
The meaning of Type 1 error is rejecting the claim that the mean running time is 9.7 hours when actually the mean running time is greater than 9. 7 hour.
what is 11÷132?? anwser please
Answers
Answer:
11÷132= 0.0833333333
but i think u wanted this answer
132÷11= 12
A certain brand of tea costs $7.99 for 16.2 ounces.
What is the unit rate?
Enter your answer, rounded to the nearest cent, in the box.
$
per ounce
Answers
Answer:
49 cents per ounce
Step-by-step explanation:
6. What is the value of x in the following system of equations?
x + y = -10
y = x - 2
Answers
x + x - 2 = -10
2x = 12, x = 6
The value of x is 6
Answer:
X= -4
Step-by-step explanation:
Hello. For to solve that, you need to use the sustitution method:
1. You need clear X in the first equation and put in the second
X+Y = -10
X = -10-Y
2. Y = X-2, then you replaced the X in this equation:
Y = (-10-Y) - 2
Y+2=-10-Y
2Y=-10-2
2Y= -12
Y= -12/2
Y=-6
3. Now you use the Y value for to solve X:
X=-10-Y, then
X =- 10-(-6)
X = -4
Figure B is a scaled copy of Figure A. What is the scale factor from Figure A to Figure B.
Answers
Answer:
The scale factor is 1/2
Step-by-step explanation:
I have a different one but it was supposed to be 1/4
In triangle ABC, m angle A = 30° and m angle B = 60°. Matches these in the order from smallest to largest. AB, BC, AC
Answers
Answer:
ab, ac, bc
Step-by-step explanation:
a=30, b=60, c=180-(30+60) = 180-90=90
please help meeeeeeeeeee
Answers
So what do u think about the answer and will help u get got better
Answers
Answer:
what
Step-by-step explanation:
what are you asking
A migrating bird flies 42 miles in 3 hours. How many miles does it fly in 5 hours?
Answers
14 * 5 = 70
Solution: 70 miles
Answer:
70 miles.
Step-by-step explanation:
In this question we are given the speed of the migrating bird. If we remember the definition of speed we will remember that speed is distance the object/body traveled, divided by the time it took the object/body to travel this distance.
Solution:
Firstly we need to find out what distance will the bird travel in 1 hour. We can easily do that science we know the distance it travels in 3 hours. So we just use the property of a fraction that states that if we multiply or divide the denominator and the numerator by the same number we will get a fraction of the same value but written a bit differently. So we divide the numerator and the denominator by 3 and get
[tex]\frac{42 miles}{3 hours}[/tex] = [tex]\frac{14 miles}{1hour}[/tex]
Now we know what distance the bird travels in one hour so we can easily figure how much the bird will travel in 5 hours by multiplying the numerator and the denominator by 5. So we do...
[tex]\frac{14 miles}{1 hour}[/tex] = [tex]\frac{70 miles}{5 hours}[/tex]
And we get that the bird will travel 70 miles in 5 hours.
What is the slope of the line?
Answers
Can some one tell me where they go? Please and thank you!!
Answers
A. 4 inches = pencil
B. 6 feet = tablecloth
C. 1 meter = person’s leg
D. 5 yards = ladder
E. 6 centimeters = insect
F. 2 millimeters = grain of rice
G. 3 kilometers = foot race
hope this is right :)
can you give brainliest plz
Answer:
The same as the top also thanks for the points and did you get a warning for your last post
Step-by-step explanation:
the table below shoes the rates for two duplicating companies. quick copy copy place initial fee of $5.00 initial fee of $10.00 $0.06 per page $0.04 per page the total cost, c, is dependent on the number of pages, p, that are duplicated. which of these systems of equations represents this situation? p = 5 + 6c p = 10 + 4c ⊝ c = 5 + 6p c = 10 + 4p ⊝ p = 5 + 0.06c p = 10 + 0.04c ⊝ c = 5 + 0.06p c = 10 + 0.04p
Answers
Answer:
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The system of equations representing the rates for two duplicating companies are -
C[1] = 5 + 0.06x
C[2] = 10 + 0.04x
What is Equation Modelling?Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.
We have the rates for two duplicating companies. There are two different rates as-
[1] > initial fee of $5 and $0.06 per page.
[2] > initial fee of $10.00 and $0.04 per page.
For the [1] company, we can write the equation as -
C[1] = 5 + 0.06x
For the [2] company, we can write the equation as -
C[2] = 10 + 0.04x
So, the system of equations will be -
C[1] = 5 + 0.06x
C[2] = 10 + 0.04x
Therefore, the system of equations representing the rates for two duplicating companies are -
C[1] = 5 + 0.06x
C[2] = 10 + 0.04x
To solve more questions on equation modelling, visit the link below-
brainly.com/question/9144182
#SPJ2
Fill in the missing angles (GIVING BRAINLIEST, THANKS, and 15 Points)
Answers
Answer:
theres no picture availible
Step-by-step explanation:
Tom reads 42 chapters of a book in 6 hours.
What is his rate in chapters per hour?
Answers
Help me please, I’ll give brainliest, pls say how u got the answer but quickly
Answers
Answer:
A) y = -1/2x + 2
Step-by-step explanation:
The line is negative, so you will have a negative slope
The line is crossing the y- axis at 2 so the y- intercept is 2.
Now do rise over run or rise/run
The lines rise is 2 and the run is 4
2/4 = 1/2 and since the line is negative the slope is negative -1/2
y = -1/2x + 2
Hope this helps ya!!
Can someone please answer this i don't understand anything
Answers
Answer:
3.6 cm²
Step-by-step explanation:
It's a trapezium
So area
=(2.4+1.6)/2 ×1.8 cm²
4/2×1.8 cm²
2×1.8 cm²
3.6 cm²
Identify the slope and y-intercept: y = ¼x - ⅓
if you could please help me right not I would really appreciate it.
Answers
Answer:
Slope: ¼, y-intercept: -⅓
Step-by-step explanation:
We know that slope-intercept is y=mx+b. We also know that m is the slope, b is the y intercept, y is y, and x is x. As we can see, the equation is y = ¼x - ⅓. Since it is minus ⅓, not plus ⅓, that means the y-intercept is negative. Now we know that the y-intercept is -⅓. Now, let's identify the slope. The slope is ¼, because it is the number next to x (y=mx+b). Now that we know this, we have our answer! The slope is ¼, and the y-intercept is -⅓! I hope this helps!