Mathematics Middle School

The measures of two angles in a triangle are 32o and 78o. Which of the following equations could be used to find the measure of the third angle, x?
(the ¨o¨ is a degree symbol)


180−32+78=x


180−32=x−78


180−(32+782÷2)=x


32+78+x=180

Answers

Answer 1

Answer:

32+78+x=180

Step-by-step explanation:

All triangle angles add up to 180, so add 78 and 32 then subtract it from 180 to get x, which in another form is 32+78+x=180.

Answer 2

Answer:

32 + 78 + x = 180

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 given angles and equate to 180, that is

32 + 78 + x = 180

Related Questions

Lorenzo’s test scores are shown below.

Lorenzo’s Test Scores
A dot plot titled Lorenzo's Test Scores. A number line going from 80 to 90. 0 dots are above 80, 81, and 82, there is 1 dot above 83, 2 above 84, 2 above 85, 2 above 86, 2 above 87, 0 above 88 and 89, and 1 above 90.

Anika’s test scores are shown below.

Anika’s Test Scores
A dot plot titled Anika's Test Scores. A number line going from 80 to 90. There are 0 dots above 80, 81, 82, and 83, 3 dots above 84, 2 above 85, 2 above 86, 3 above 87, and 0 dots above 88, 89, and 90.

Which statement compares the shape of the two dot plots?
There is a gap in both plots.
There is a gap in Anika’s scores, but not in Lorenzo’s scores.
The data is widely spread across both plots.
The data is more widely spread for Lorenzo’s scores than for Anika’s.

Answers

Answer:

The data is more widely spread for Lorenzo’s scores than for Anika’s.

Step-by-step explanation:

Answer:

The data is more widely spread for Lorenzo’s scores than for Anika’s.

Step-by-step explanation:

In other words "D" trust me

what is the equation y=mx-4

Answers

This is the slope-intercept form, with -4 the y-intercept and m the slope
This is slope intercept form. M represents your slope, also known as rate of change, y2-y1 / x2- x1, and triangle (delta) y / triangle (delta) x.

B is your y-int. It's the initial amount you start off with.

Hope this helps!

Evaluate the expression shown below and write your answer as a fraction in simplest form.

Answers

Answer:

9/40

Step-by-step explanation:

[tex]17/20 - 5/8\\[/tex]

-> [tex](34-25)/40[/tex]

-> [tex]9/40[/tex]

Least common factor is 40

34/40 - 25/40 = 9/40

9/40 is the answer

A quadrilateral that has its opposite sides equal and its angles, not a 90 is called:
a. deltoid
b. parallelogram
c. rectangle
d. square
e. trapezoid

Answers

Yes. They are correct it’s C
ANSWER: Parallelogram
EXPLANATION: It is saying that the angles are not 90 degrees, while all the options angles would be 90 except the parallelogram because it is a slanted rectangle/square.

A container is in the shape of a triangular pyramid and has a height of 10 inches. The area of the base of the container is 12 square inches.

What is the volume of the figure in cubic inches?

40 cubic inches
120 cubic inches
60 cubic inches
360 cubic inches

Answers

40 cubic inches is the
60- (10x12)/3 this should be right

Pls help on 1 and 2. I have no idea what I'm supposed to do.

Answers

What he said because. And so yea
Im lost dude someone help

what is six-sevenths divided by three-fourteenths?

Answers

Answer:

4

Step-by-step explanation:

6/7 ÷ 3/14

Copy dot flip

6/7 * 14/3

Rewriting

6/3 * 14/7

2*2

4

Answer:

84/21

Step-by-step explanation:

to divide a fraction by another fraction, you must take the reciprocal of the second fraction (3/14 to 14/3) and then multiply the two fractions.

Identify the initial value and rate of change for the graph shown

A coordinate plane graph is shown. A line passes through the y-intercept at 1 and through the point 5 comma 4.

Initial value: 1, rate of change 3 over 5.
Initial value: 3 over 5., rate of change: 0
Initial value: 1, rate of change 5 over 3.
Initial value: 5 over 3., rate of change: 0

Answers

initial value: 1. rate of change: 3 over 5.
Initial value:1,rate of change 3 over 5

D = ______
R = ______

Answers

Answer:

picture unclear

Step-by-step explanation:

Answer:

. a real coordinate space of dimension n, written Rn or R n {\​displaystyle ... C 1 > 0 , ∃ C 2 > 0 , ∀ x , y ∈ R n : C 1 d ( x , y ) ≤ q ( x − y ) ≤ C 2 d ( x , y ) . {\displaystyle \exists C_{1}>0,\ \exists C_{2}>0,\ \forall \mathbf {x} ,\​mathbf ...

Step-by-step explanation:

Eight hundred tickets are sold for a play. Thirty-five percent of those tickets were sold in advance. Which equation can be used to find the number of tickets sold in advance? StartFraction 800 divided by 8 Over 35 divided by 8 EndFraction = StartFraction 100 Over 4.375 EndFraction StartFraction 100 divided by 8 Over 800 divided by 8 EndFraction = StartFraction 12.5 Over 100 EndFraction StartFraction 35 times 8 Over 800 times 8 EndFraction = StartFraction 280 Over 6400 EndFraction StartFraction 35 times 8 Over 100 times 8 EndFraction = StartFraction 280 Over 800 EndFraction

Answers

Answer:

0.35(800)=x

x=number of tickets sold in advance

Step-by-step explanation:

Answer:

Divide 35÷100 which equals 0.35 then multiply 0.35×800 which equals 280 so the answer is 280 so the equation is 0.35×800=280.

Step-by-step explanation:

lets evaluate 81^-3/4.

Answers

Answer:

1/ 27

Step-by-step explanation:

[tex] = 81^{ \frac{-3}{4} } [/tex]

[tex] = (\frac{1}{81}) ^{ \frac{3}{4} } [/tex]

[tex] = (\frac{1}{3}) ^3 [/tex]

[tex] = \frac{1}{27} [/tex]

1/27 because that the answer

Drag each label to the correct location on the table. Each label can be used more than once, but not all labels will be used.

Simplify the given polynomials. Then, classify each polynomial by its degree and number of terms.

Answers

Have attached the picture which has the answers plus explains the solution...

Hope that helps

The simplification, its degree and number of terms of the given polynomials is given below.

What is polynomial?

Polynomials are sums of terms of the form k⋅xⁿ, where k is any number and n is a positive integer

Given:

1. (x-1/2)(6x+2)

Simplified form: 6x²-x-1

Name by degree : Quadratic

Number of terms: Polynomial.

2. (7x²+3x)-1/3(21x²-12)

   Simplified form: 3x+4

Name by degree : Linear

Number of terms: Binomial.

3. 4(5x²-9x+7)+2(-10x²-18x-13)

  Simplified form: 2

Name by degree : constant

Number of terms: monomial.

Learn more about polynomial here:

https://brainly.com/question/11536910

#SPJ2

Juan runs in place for 2 5/6 minutes on Monday. He runs in place for 1 1/2 times as long on Tuesday.

Juan draws this model to represent the number of minutes he runs in place on Tuesday.

How many minutes does Juan run in place on Tuesday?

Enter your answer as a mixed number in simplest form by filling in the boxes.

Answers

Answer:

12miles

Step-by-step explanation:

wink :)

Grace adopted a kitten, Fluff, from the animal shelter. Fluff weighed 3.5 lbs. when she was adopted and has gained weight at a rate of 1.5 lbs. per week. Which equation could be used to determine after how many weeks, x, Fluff would weigh 12.5 lbs.?



3.5x+12.5=1.5

3.5x+1=12.5

3.5+1.5x=12.5

3.5−1.5x=12.5

Answers

Answer:

C: 3.5+1.5x=12.5

Step-by-step explanation:

i think this is correct because in the question they use the word Gain which means you would add. But also this answer is correct because the kitten had gain 1.5 pounds PER WEEK which make 1.5x

so your answer is 3.5+1.5x=12.5

Hope this helps have a good day

and if correct pls mark me brainliest

thank you bye

Answer:

3.5 +1.5x = 12.5 (third option top- down)

Step-by-step explanation:

given : weighted 3.5 lbs. then gained 1.5 lbs. per week ended up 12.5 lbs.

translate:             3.5                   +      1.5         *        x         =           12.5

Marly gets 5 gems every 5 minutes. If Marely has 180 gems, how many minutes have passed?

Answers

Find out how many gems Marly can get in a minute.

5 gems = 5 minutes

1 gems = 5 divided by 5 = 1 minute

180 gems = 1 x 180 = 180 minutes

180 minutes have passed.



Answer:

180

Step-by-step explanation:

It is one gem per minute.

Question 5(Multiple Choice
HELP QUICKKKKKKJJ
Worth 1 points)
(04.02 LC)
Solve the following system of equations:
x + 3y = -4
X + 5y = -6
(1, 1)
(-1, 1)
(1, -1)
(-1,-1)

Answers

Y=(-4-x)/3
Y=(-6-x)/5
(-4-x)/3=(-6-x)/5
-20-5x=-18-3x
-5x+(3x)=-18+20
-2x=2
X=2/-2=-1

-1+5Y=-6
5Y=-6+1
5Y=-5
Y=-1
(-1,-1)
-x+-3y=4
x+5y=-6
2y=-2
y=-1
x+3(-1)=-4
x-3=-4
+3=+3
x=-1

Evaluate the expression shown below and write your answer as a fraction in simplest form.

Answers

Answer:

[tex]43/100[/tex]

Step-by-step explanation:

First, make both of the denominators into 100.

Then, 3/10 would be 30/100.

Finally, you can add them to get 43/100.

43/100
Make both denominators into 100 so that means 3/10 would be 30/100 then you add both so 30/100+ 13/100 only adding the numerators so it will equal 43/100

Choose all the factors of 12. (Check all that apply.)

10
9
2
6
3
8
5
12
7
11
4
1

Answers

ANSWER: 1,2,3,4,6,12
EXPLANATION: When a question asks you the factors of a number it is basically just asking you what number are in the multiplication of 12. The numbers all tie in with the number 12 when they are multiplied
EX:
-1 * 12 = 12
-2*6=12
-3*4=12
-6*2=12

Answer: 1, 2, 3, 4, 6, 12

Step-by-step explanation:

Factors is what makes the number by multiplication

so 1 x 12 is 12,

2 times 6 is 12

3times 4 is 12

What are some transformations that would map DFE to ABC on this coordinate plane? Other than a unit movement

Answers

Answer: You could use a translation since the shape is maintaining its orientation and size. All it’s doing is moving to the right.

a translation would move points while keeping the size and shape

Which of the equations is graphed below?

Answers

Answer:

D

Step-by-step explanation:

Slope of -2 that's going through y=1

so y=-2x+1

d is the correct answer bc if you plug in 0 you get 1 which is a point on the graph

A) what is the simplified product of seven-fourths divided by eight-fifths as an improper fraction

B) what is this number as a mixed number

Answers

Answer:

A) 

First were going to put our numbers in perspective.

[tex]\frac{7}{4}[/tex] ÷ [tex]\frac{8}{5}[/tex]

But to find the improper fraction, we have to cross multiply these numbers.

[tex]\frac{7}{4}[/tex] × [tex]\frac{8}{5}[/tex]

7 x 5 = 35.  

4 x 8 = 32.

Now we have our improper fraction is  [tex]\frac{35}{32}[/tex]

B)  

To turn our improper fraction into a mixed number, we will use division.

We know that the 32 can only go into 35 one time.  We also know that the bottom number always stays the same.  So our equation will look somewhat like this.

[tex]1\frac{?}{32}[/tex]

Now to fine the top number we will have to subtract 35 from 32 because we already know that 32 can go into 35 one time, so 35 - 32 = 3.  So are mixed number will look like this.

[tex]1\frac{3}{32}[/tex]

This is our answer!

Answer:

7/4 ÷ 8/5

A. First, we need to do the reciprocal of 8/5.

7/4 x 5/8 = 35/32

B. Now, we need to convert it into a mixed number. Divide 35 by 32. 32 goes into 35 one time. 35 - 32 = 3, so remainder 3. We use 1 as the whole number since 32 goes into 35 one time. We use the remainder 3 as the numerator, and 32 as the denominator.

1 3/32

Hope this helps u have a great day :)

(25 POINTS) (TIMED) Which statements about this system of equations are true? Check all that apply.

-x + 6 y = 16
8 x - 6 y = -2

O The x-variable will be eliminated when adding the system of equations.
O The y-variable will be eliminated when adding the system of equations.
O The sum of the system of equations is Negative 8 x = 14.
O x = 2
O y = 3
O There is only one solution to the system of equations.

Answers

B,D,F
make me the brainliest:))<3

A rectangular portrait is 2 yards wide and 2 yards high. It costs $7.61 per yard to put a gold frame around the portrait. How much will the frame cost?

Answers

Answer:

$60.88

Step-by-step explanation:

2 yards wide and 2 yards high so thats 2 yards per side x 4 is 8, 8 x $7.61 is $60.88

hope this helps:)

a 2 by 2 portrait would look like this

⬜️⬜️
⬜️⬜️

the frame only goes around the edge of the portrait, so we should count how many yards there are on each edge

1. 2
8 ⬜️⬜️ 3
7 ⬜️⬜️ 4
6. 5

then, we multiply the 8 yards by the $7.61.

the answer is $60.88!

State the domain & range!

Answers

Answer:

Domain=x:x is a natural number less than 6: x≠4

Range= x:x is a natural number, 3>=x<=1

Domain is (1,2,3,5)
Range is (1,2,3)

State the domain & range!

Answers

Hi there!  

»»————-　★　————-««

I believe your answer is:  

Domain: {-4, -3, 0, 2}

Range: {-2, -1, 1, 5}

»»————-　★　————-««  

Here’s why:  

⸻⸻⸻⸻

The domain are all the given x-values in the function. The range are all the given y-values of the function.Usually in a table, the domain values are on the left and the range values are on the right.

⸻⸻⸻⸻

Knowing This:

Domain: {-4, -3, 0, 2}

Range: {-2, -1, 1, 5}

⸻⸻⸻⸻

»»————-　★　————-««  

Hope this helps you. I apologize if it’s incorrect.  

your domain is {x|x=-4,2,-3,0} and your range is {y|y=5,1,-2,-1}

please help i dont know

Answers

Answer:

a/4x-3

Step-by-step explanation:

4 'x' box means: 4x, 3 '-' box means: -3

Answer:

a) 4x-3

I hope this helps have a great day

What is the distance from P to Q if P is (3,-1) and Q is (-1,-4)
A. 1 unit
B. 5 units
C. 25 units
D. 7 units

Answers

Answer:

Using the distance formula the answer is 5

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Please help-!


Which of the following are integers?

- 13/14
0
-16
147
1000000
-3
-0.35

Answers

The person above me is wrong...
An integer is a whole number that can be negative or positive.
The answers are...
0,-16,147, 1000000,and -3

Answer:

0，-16，147，1000000，-3

hope it helps you

Step-by-step explanation:

Evaluate the expression shown below and write your answer as a fraction in simplest form.

Answers

Answer:

17/24

Step-by-step explanation

Answer:

17/24

Step-by-step explanation:

First, find the common denominator.

Common denominator = 24

1/12 * 2 = 2/24

5/8 * 3 = 15/24

Add.

2/24 + 15/24 = 17/24

Can 17/24 be simplified?

17/24 can not be simplified, because 17 is a prime number and 24 is not divisible by 17 without getting a decimal.

Complete a b and c if you do one it would mean alot

Answers

Answer: I don't see what your talking about here, so I can't help you.

Step-by-step explanation:

A. Ez excavation 980 happy hauling 1000
B .50 cents less for each yard with ez excavation
C. She should go with ez excavation it’s cheaper for the buyer and her
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