Mathematics College

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Don’t use for points or will take it back

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Answer 1

Answer:

60°

Step-by-step explanation:

Angles in a triangle add up to 180°

80°+40°=120

180-120=60°

Answer 2

Answer:

Step-by-step explanation:

The angles of the traingle must add up to 180 which means that

40+80+x=180

Solve for x

120+x=180

60=x

Related Questions

A ladder is leaned against a wall with its base 6m from the wall. The ladder makes a 50 degree angle with the ground. How long is the ladder?

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Answer:

Step-by-step explanation:

9. 5(6р -3) -2 = 2(15р – 11) - 5

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you’re answer would be 0=0

Correct answer:

No solution

[tex]2 \sqrt{2} [/tex]

Answers

Answer:

2.828427125

Step-By-Step Explanation:

around 2.83

if they want you to do it in square root form then leave as is because it cannot be simplified more.

Help please asap! Give work for each question and number each of them so I know, ty again!

Answers

Answer:

1. 258 square meters

2. 180 square meters

3. 286 square feet

Step-by-step explanation:

1. Find the surface area of each side:

9 * 5 + 5 * 6 + 9 * 5 + 6 * 5 + 9 * 6 + 9 * 6

45 + 30 + 45 + 30 + 54 + 54

75 + 75 + 108

150 + 108

258

2. Base: 5 * 5 = 25

Top: 5 * 5 = 25

Sides: each 5 * 6.5 = 32.5

Altogether: 32.5 * 4 = 130

130 + 25 + 25 = 180

3. Base and top: both 8 * 10 = 80, together 80 * 2 = 160

Front and back sides: both 8 * 3.5 = 28, together 28 * 2 = 56

Left and right sides: both 10 * 3.5 = 35, together 35 * 2 = 70

Altogether: 160 + 56 + 70 = 286 sq feet

Determine whether line c is a transversal of lines a and b. Explain your reasoning.
I WILL AWARD DA BRILLIANT AWORD THINGY

Answers

Answer:

Yes

Step-by-step explanation:

A transversal line is a line that intersects two or more lines. Since line C is intersecting two lines, it is transversal.

The required line C is a transversal of lines a and b.

What is a line?

A line is a straight curve connecting two points or more showing the shortest distance between the initial and final points.

Here,
The line which intersects two or more lines is said to be a transversal line.
So as of the given figure, line C intersects line a and line b so Line C is a transversal line.

Thus, the required line C is a transversal of lines a and b.

Learn more about lines here:

brainly.com/question/2696693

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Jerry has two same size circles divided into same number of equal parts. One circle has has 3/4 of the parts shaded and the other has 2/3 of the parts shaded. His sister says the least number of pieces could be divided into 7,

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Answer:

Step-by-step explanation:

13. A certain town with a population of 100,000 has 3 newspapers: I, II, and III. The proportions of townspeople who read these papers are as follows: I: 10 percent I and II: 8 percent I and II and III: 1 percent II: 30 percent I and III: 2 percent III: 5 percent II and III: 4 percent (The list tells us, for instance, that 8000 people read newspapers I and II.) Find the number of people who read only one newspaper. How many people read at least two newspapers

Answers

Answer:

a) the number of people who read only one newspaper is 20,000

b) number of people read at least two newspapers is 12,000

Step-by-step explanation:

Given the data in the question;

A certain town with a population of 100,000 has 3 newspapers

a)Find the number of people who read only one newspaper

From the Venn-diagram illustrating the data in the question;

Number of that read only one paper will be;

=[ ([tex]I^{}[/tex]∩ [tex]II^{c}[/tex] ∩ [tex]III^{c}[/tex]) + ( [tex]I^{c}[/tex] ∩ [tex]II^{c}[/tex] ∩ [tex]III^{c}[/tex]) + ( [tex]I^{c}[/tex] ∩ [tex]II^{c}[/tex] ∩ [tex]III^{}[/tex]) ] × 100,000

= [ 1% + 19% + 0% ] × 100,00

= 20% × 100,000

= 20,000

Therefore, the number of people who read only one newspaper is 20,000

b) How many people read at least two newspapers;

Number of people read at least two newspapers will be;

= [ ([tex]I^{}[/tex]∩ [tex]II^{}[/tex] ∩ [tex]III^{c}[/tex]) + ( [tex]I^{}[/tex] ∩ [tex]II^{c}[/tex] ∩ [tex]III^{}[/tex]) + ( [tex]I^{c}[/tex] ∩ [tex]II^{}[/tex] ∩ [tex]III^{}[/tex]) + ( [tex]I^{}[/tex] ∩ [tex]II^{}[/tex] ∩ [tex]III^{}[/tex]) ] × 100,000

= ( 7% + 1 % + 3% + 1% ) 100,000

= 12% × 100,000

= 12,000

Therefore, number of people read at least two newspapers is 12,000

Tyler has 30 marbles 40% of his marbles are blue how many of his marbles are blue

Answers

Answer:

12 marbles are blue.

Step-by-step explanation:

3 x 4 = 12, so 40 % of 30 is 12.

What is the value of X?
100°
60°
X
A.60
B.20
C.100
D.40

Answers

Step-by-step explanation:

X+100+60=180(due to stright angle) =X+160=180 =X=180-160 =X=20

Find the equation of a line perpendicular to x = -4 that contains the point (-3, 4). Write the equation in slope-intercepi
form.

Answers

Ummm ................

write an expression for the phase the difference of twice a number (n) and 3

Answers

Answer:

2n - 3

Step-by-step explanation:

twice a number means to multiply it by 2

difference of a number and 3 is a number being reduced by 3 so the 3 comes after the subtraction sign

Solve each inequality, and then drag the correct solution graph to the inequality.

Answers

Do you have the inequalities and graphs/options?

Answer:

Step-by-step explanation:

Round 1.18769843885 to 5 decimal places

Answers

Answer:

1.18770

Step-by-step explanation:

zzzzzzzzzzzzzzzzz

The rounding up of 1.18769843885 to 5 decimal places is 1.18770.

What is the rounding up of numbers in decimal places?

The rounding up of numbers is an estimate that says if a digit is more than 5, that number can be considered as one and added to the next preceding number.

To round up a number in a decimal place, we need to start counting our decimal place after the decimal point.

Here,

we are to round 1.18769843885 to 5 decimal places

So, 1.18769843885 becomes:

= 1.18770

Learn more about rounding up in decimal places here:

https://brainly.com/question/235613

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What is the scale factor of the dilation shown? Quadrilateral D E F G has side lengths 4, 10, 8, and 4. Quadrilateral D prime E prime F prime G prime has side lengths 6, 15, 12, and 6.
Scale factor= ______:______

PLEASE I NEED HELP

Answers

Answer:

i think the scale factor is 3:2

Step-by-step explanation:

To figure the total difference divide:

6 divided by 4 = 1.5

1.5 = 3/2

pls tell me if wrong

Hope this helps

Select all the fractions that are
equivalent to a whole number.
9/3 -16/8 7/0 -5/3 0/5

Answers

9/3 = 3
-16/8=-2
7/0=7
-5/3=-1.6
0/5= 0
the fractions that are whole numbers are 9/3, 7/0, 0/5

The answer to this question 9/3, 7/0, 0/5

PLS HELP ONLY 1 question

Answers

The answer is C. Here you go.

n-10 +9n -3= ggggggggggggggggggggggggggggggggggg

Answers

Answer:

1.428571428571429

Step-by-step explanation:

Answer:

n-10 +9n -3= ggggggggggggggggggggggggggggggggggg

Step-by-step explanation:

n-10 +9n -3= ggggggggggggggggggggggggggggggggggg

Which expression is equivalent to -5(2x – 10)?
Help ples

Answers

The answer is c.

-5(2x-10)=
Distribute
-10x+50

-10(x-5)= -10x+50

help loll i’m confused

11. Silvaro borrowed $89.40 from his brother. He determines that he can pay him back
in six weeks. What effect will Silvaro's repayment have on his weekly bank account?

Answers

Answer: 14.90$ weekly deduction

Step-by-step explanation:

Answer:

$14.9 deduction

Step-by-step explanation:

Silvaro borrowed $89.40 from hsi brother

Silvaro decided that he will pay him back the money in six months of allowance.

Therefore the effect of the payment in his bank account can be calculated as follows.

= $89.40/6

= $14.9

Hence the payment will have a deduction of $14.9 from his monthly bank account

Hope it helps and if it does mark me brainliest.

You can rent a car for $45 per day plus $0.75 per mile. (This includes taxes.) If you have $120 to spend, find the number of miles you can drive.

Answers

You can drive 100 miles.
.75m+45=120
.75m=75
M=100

If 35% of a number is 98 and 80% of the same number is 224, find 45% of that number.

Answers

9514 1404 393

Answer:

126

Step-by-step explanation:

If n represents the original number, we have

(35%)n = 98

(80%)n = 224

We want to find (45%)n.

(45%)n = (80% -35%)n = (80%)n -(35%)n

(45%)n = 224 -98 = 126

45% of the number is 126.

A 5-pound bag of red onions costs $3.90. What is the unit price?
per pound

Answers

If I did the math correctly the answer should be $0.78 per pound.

I hoped that this helped

Answer:

OK, I love these questions. The way to get the answer is always remember this formula- (PRICE DIVIDED BY QUANTITY). In this case, the price for a 5 pound bag of onions costs 3.99. So, to find the unit price per pound, all you need to do is divide 3.99 by 5. If you do the math (3.99/5), you'll get the answer of 79 cents per pound. If your asked to round, the answer would be 80 cents per pound.

help please! look at question

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615.75cm is the area

HELP! DUE IN 5 MINS TvT

Could the table of (x,y) pairs
Have been generated by a linear function?

O. Yes
O. No

Answers

I believe that answer is No

Yes
Vhfbunn gn Maugham

Paul is 32 years old In ten years time Paul's age will be the sum of his 3 sons What do his sons ages add up to now?

Answers

Answer:

Step-by-step explanation:

Hope it helps!

An aquarium contained an equal number of horseshoe crabs and sea stars. After 15 horseshoe crabs were removed and 27 sea stars were removed, the ratio of horseshoe crabs to sea stars was 5:3. How many horseshoe crabs and sea stars were there at first? Solve this problem and explain your reasoning.

Answers

Answer:

45 horseshoe crabs and 45 sea stars

Step-by-step explanation:

The aquarium initially contained x crabs and x sea stars.

"After 15 horseshoe crabs and 27 sea stars are removed the ratio of horseshoe crabs to sea stars is 5:3"

(x-15):(x-27) = 5:3

(x-15)/(x-27) = 5/3

3(x-15) = 5(x-27)

3x-45 = 5x-135

90 = 2x

x = 45

375 is 60% of what number

Answers

Answer:

625

Step-by-step explanation:

60% x x = 375

you would multiply both sides by 100 and divide both sides by 60 so

×=625

Hope this helps!

Please help me with this 30 points

Answers

Answer:

Step-by-step explanation:

For every 1 unit, it goes vertically 1/2

In the diagram, △RST∼△R′S′T′. Determine the length of RS. Show your work.
100 points!

Answers

Answer: 6 feet

Explanation: Since the triangles are similar, we can use the proportion 9/4=(12x+2)/(5x+1).

Cross multiplying 9*(5x+1) and 4*(12x+2) gives us 45x+9=48x+8.

Solving for x gives us 1/3.

You can check your work by plugging in x for the two equations, which gives us 6 (RS) and 8/3 (R’S’)

The scale factor is 4/9 (k) from 9k=4

6*4/9=8/3 and (8/3)/(4/9)=6

Answer:

RS = 6 feet

Step-by-step explanation:

Use ratios of corresponding sides:

TS/T'S' = RS/R'S'

Substitute and solve for x:

9/4 = (12x + 2)/(5x + 1)9(5x + 1) = 4(12x + 2)45x + 9 = 48x + 848x - 45x = 9 - 83x = 1x = 1/3

Find the length of RS:

RS = 12x + 2 = 12(1/3) + 2 = 4 + 2 = 6 feet

HELP!!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

;)

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Help Don’t use for points or will take it back

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Don’t use for points or will take it back