Answers
Answer:
72
Step-by-step explanation:
6x+6x+8x=180 (∠ sum of Δ)
20x=180
x=9
∠ABC=8(9)
=72
Related Questions
The graph of a quadratic function is shown on the grid. 2 HE . Which equation best represents the axis of symmetry?
Answers
Answer:
Step-by-step explanation:When a quadratic function is graphed in the coordinate plane, the resulting parabola and corresponding axis of symmetry are vertical. The graph of the parabola represented by the quadratic function y = a( x - p )2 + q has an axis of symmetry represented by the equation of the vertical line x = p.
Answer:
x=2
Step-by-step explanation:
symmetry= the hightest number x value. basically the halo of the quadratic.
Simplify the expression by combining like terms.
n + 4n - 7n - 1
Answers
Answer:
-2n-1
Step-by-step explanation:
n +4n-7n-1
-2n-1
The answers for fall math test 8th grade
Answers
Answer:
ok
Step-by-step explanation:
Okay
Explanation:
(2a-3)(b-a)-3a(3a+b)
Answers
Answer: -ab - 11a^2 - 3b + 3a
Step-by-step explanation:
i think this is what you're wanting? if not just comment what you need and i'll retry it!
find the linear relationships
Answers
Answer:
everytime the x goes up by 3, the y goes down by 3
Step-by-step explanation:
Y goes down by 3
which is the best estimate for the mass of a desktop computer
a 500 g
b 10 l
c 10 kg
d 100 g
Answers
A man drove his car 216 miles on 12 gallons of gas. How many miles did he get to a gallon? ___________ miles/gallon?
Answers
Answer:
18 miles per gallon
Step-by-step explanation:
Answer:
I believe its 18
Step-by-step explanation:
216 divided by 12 is 18
Have a wonderful day! <3
3.(06.01)
What is the value of the expression 5^2 +2^2? (2 points)
Answers
Answer:
29
Step-by-step explanation:
5^2=25
2^2=4
25+4=29
Answer: 29 is the final answer
Step-by-step explanation: Have a nice day - Lily ^_^
Mrs. Merritt, has 75% of her $300 dollar goal, how much money does she have?
Answers
Answer:
She has 225 dollars
Step-by-step explanation:
75% of her $300
Change the percent to decimal form
.75 * 300
225
She has 225 dollars
A mine worker is in a tunnel 25 feet below the ground. He descends another 13 feet. What is his final position? i already know that part of the answer is -25 -
but is it -25 - 13 or -25 - -13
Answers
Answer: -25 - 13
This simplifies to -38
So the worker's final position is 38 feet below the ground.
A diagram is shown below.
==========================================================
Explanation:
Draw a vertical number line. Plot 0 on it to indicate the ground level, or surface level. Then plot -25 on it, which is below 0. This is 25 feet below the ground.
To move 13 further feet downward, we will subtract 13 from -25. Subtracting a positive means we move downward.
For example, start at the 30th of a building. This is marked as +30 or just 30 on the vertical number line. Subtract off 13 to go down 13 floors and we have 30-13 = 17. So after going down 13 floors, we're at the 17th floor now.
Going back to the problem at hand, we start at -25 and subtract off 13 to get the final answer -25 - 13
The answer is not -25 - -13 and it is not -25 - (-13). This is because the two negatives cancel to be a positive. So -25 - (-13) becomes -25+13. Here we're starting at -25 but then going up 13 feet. Instead we want to go down 13 feet.
------------------------------------
After we determine the expression is -25 - 13 we will effectively add the positive versions of those numbers like so
25+13 = 38
But the final answer is negative because we're starting underground and moving further underground.
We can write it like this
-25 - 13 = -(25+13) = -(38) = -38
Therefore, if the worker starts off 25 feet underground, and moves 13 feet downward, then the worker ends up 38 feet underground. Again, use the vertical number line to help see this.
Check out the diagram below.
pls help asap
A circle is subdivided by a central angle of 90 degrees. The length of the subtended arc is 25 mm. What is the radius of the circle?
Answers
Answer:
15 .9
Step-by-step explanation:
Answer:
2250
Step-by-step explanation:
All you do is 90x25 which is 2250
pls mark brainliest
-6(2x+3)=-12x-18
plz help i will give you braneset
Answers
Answer:
-6(2 x + 3) =-12 x-18 = 0 (after you simplify) :)
Step-by-step explanation:
Vinny took some pictures. He printed 28 of them. He has 36 left to print. How many pictures did he take?
Answers
Answer:
64 pictures
Step-by-step explanation:
36 + 28 = 64 pictures
Answer:
36+28=64
Step-by-step explanation:
that should be right
Which is the least amount?
[A] 1.20 [B] 0.21 [C] 1.02 [D] 1.020
Answers
The Answer Is:
B (0.21)
Elle earned $45 last month babysitting. This
month she earned $35. What is the
approximate percent of decrease?
Answers
Answer:
40%
Step-by-step explanation:
Which of these is the standard form of the following function?
f(x) = -9(x + 5)2 + 4
f(x) = 9x2 − 90x − 221
f(x) = -9x2 − 90x − 221
f(x) = 9x2 − 180x + 221
f(x) = -9x2 − 180x − 221
Answers
Answer:
the answer is B) -9x2 -90x -221
Which of the following expressions represents “5 less than 3 times the number m”?
• 3m- 5
• 5m- 3
• 5-3m
• 3-5m
Answers
Answer:
In my opinion it should be 3m - 5
Step-by-step explanation:
12 34/50 / 11 30/25
no im not giving the first correct person brainliest
only idiots do that
Answers
Answer: 317/305 or 1 12/305
Step-by-step explanation: Reduce the expression, if possible, by cancelling the common factors.
ALGEBRA Evaluate the expression when X-
2 and = is - 1/5
Answers
Answer:
x=9/5
Step-by-step explanation:
x-2=-1/5
x=9/5
(Multiple choice/ brainiest will be given)
Can I please get some help with this answer?
Answers
Answer: d
Step-by-step explanation:
What is the measure of angle x? Show or explain how you know.
Answers
Answer:
65 degrees
Step-by-step explanation:
y is a right angle and a is 30 degrees. this means that the supplementary engle of x is 45 plus 70 which is 115. 180-115 = 65 degrees.
Your doctor told you to eat 25 25 grams of fiber each day. You had 4 4 grams of fiber for breakfast. What percent of the 25 25 grams of fiber have you eaten so far?
Answers
Answer: 16%
Step-by-step explanation:
Grams of fiber recommended by doctor = 25 grams
Grams of fiber had for breakfast = 4
Percentage of gram ate = Grams had for breakfast / Grams recommended by doctor × 100
= 4/25 × 100
= 4 × 4
= 16%
Answer: 16%
Step-by-step explanation:
Haven earned $165 working as a babysitter. When she goes back to school, she needs more than $192 to buy a new coat How
much must she eam before returning to school? Write and solve an inequality to represent this scenario.
Answers
Answer:
$27
Step-by-step explanation:
If the area of a rectangle is x2 – 13x + 40, what are the lengths of
the two sides?
Answers
Answer:
5 and 8
Step-by-step explanation:
quadratic formula.
-(b)+sqrt(b)^2-4(a)(c)
^ans
divide the whole thing by 2(a).
If the formula isn't clear, search quadratic formula up.
Find the quotient of the complex numbers. Express your answer in
trigonometric form.
z = 7(cos15° + i sin15)
zz = 2(cos1 10° + i sin 110)
HELP ASAP!
Answers
Answer:
answer is c
Step-by-step explanation:
Evaluate - 3x + 2y when x = 2 and y = 3
Answers
Answer:
the answer is 0
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
-3x + 2y
-3(2) + 2(3) ## Substitution
-6 + 6 ## Distributive
0 ## Addition
Name the triangle.
please help
Answers
Answer:
c. right =90 that's the as
Mike a local auto mechanic charges a certain amount to diagnose and repair car he bases his price on the amount of time that it takes for the car to be repaired what is the rate of change in the graph.
Answers
Answer:
200
Step-by-step explanation:
The time spent repairing the car is five hours while the total cost is about 200 bucks
How do I find the rule of a linear table ?
Answers
Answer:
start by checking that it's a linear relationship that's occurring by having a look at the difference in our X in each step against the difference in our Y in each step.
Step-by-step explanation:
On the playground, 1/4 of the students are on the jungle gym, and 1/3 f the students are playing kickball. What part of all the students on the playground is on the jungle gym or playing kickball?
Answers
Answer:
7/12 of the students
Step-by-step explanation:
So first you would need to get your fractions to have the same denominator. When your trying to get your fractions to get the same denominato. You must multiply both the numerator and denominator.
The most common denominator from 1/4 and 1/3 is 12. So you multiply both the numerator and denominator of 1/4 by 3. So then your new fraction is 3/12. Now you multiply 1/3, both numerator and your denominator by 4. Then your new fraction is 4/12. So The last step is to add both of your numerators. Never add the denominators together. And at last you have your answer. 7/12.
(Hope this helps! Brainliest?)