Mathematics High School

person 6-9 MathXL 8th grade question 2​

Person 6-9 MathXL 8th Grade Question 2

Answers

Answer 1

Answer:

<1 = 112degrees

<2 = 33degrees

Step-by-step explanation:

From the figure, the sum of interior angles of the larger triangle is equal to the exterior, hence;

<1 + 15 = 127

<1 = 127 - 15

<1 = 112degrees

For the smaller triangle;

<1 = <2 + 79

112 = <2 + 79

<2 = 112-79

<2 = 33

Hence the measure of <2 is 33degrees

Related Questions

Please help I have 15!!!!!!!

Answers

Answer:

True

Step-by-step explanation:

x^a = b

x^( a / a ) = b^( 1 / a )

x^1 = b^( 1 / a )

x = b^( 1 / a )

What is the first step in solving k in the equation k + 2 = 15 ?

Answers

Answer:

13

Step-by-step explanation:

subtract 2 by 15 to get 13

k = 13

Subtracting by -2 on both sides to get k=13

Dana is creating a video. Her computer shows that the video is 265.038 seconds long. She writes the length of the video in expanded form. Which expression represents the value of one of the digits in the length of Dana's video?

Answers

Options aren't supplied. However, a list of possible answers have been worked out.

Answer:

Kindly check explanation

Step-by-step explanation:

In expanded format :

256.038 can be broken down as :

2 represents 200 ; 2 hundred = 2 * 100

5 represents 5 tens = 50 = 5 * 10

6 represents 6 unit = 6 * 1

0 represents 0 tenths

3 represents 3 hundredths = 3 * 1/100

8 represents 8 thousandths = 8 * 1/1000

The options aren't given, but the answer would be among the values listed above

Samantha saw two bottles of ketchup at the store for the same price. One bottle contained 4 pints of ketchup, and the other contained 1.25 quarts of ketchup.

Which bottle was the better bargain?

Answers

Answer:

The 4 pint ketchup bottle was the better bargain.

Step-by-step explanation:

To find which bottle was the better bargain, find which one had the most amount of ketchup in it.

In one quart, there are 2 pints.

Convert the 1.25 quart bottle to pints by multiplying 1.25 by 2:

1.25(2)

= 2.5

Since 4 is larger than 2.5, the 4 pint bottle of ketchup has more.

So, the 4 pint ketchup bottle was the better bargain.

Using the Pythagorean theorem what is the distance between (5,-3) and (9,1)

Answers

Step-by-step explanation:

Distance between (5,-3) and (9,1)=√(9-5)^2+(1-(-3))^2

=√4^2+4^2

=√16+16

=√32 units

It's not possible to calculate the distance between these points by pythagoras theorem .We can easily calculate it by distance formula I.e.√(x2-x1)^2+(y2-y2)^2

Suppose A and B are independent events. If P(A) = 0.6 and P(B) = 0.85, what is P(A and B)? A. .34 B. .51 C. .17 D. .68

Answers

Answer:

0.51

Step-by-step explanation:

Mathematically, for two individual events;

P(AnB) = P(A) * P(B)

P(A n B) = 0.6 * 0.85 = 0.51

Answer:

.51 (B)

Step-by-step explanation:

Select the letter of the correct answer. A museum in South Africa uses paintings of right-angled triangles to teach children about the Pythagorean Theorem: A squared + B squared = C squared Let's say that A = 4 and B = 3. Based on the theorem, what is the value of C squared? Choose the correct expression. A 42+
32 B (4 x 3)2 C (4 + 3)2 D 4 + 3 ​

Answers

The answer is C I think

What type of triangle is this triangle?
acute isosceles
obtuse isosceles
Right isosceles
acute scalene

Answers

Obtuse isosceles
it has 2 congruent sizes, no right angles and seems two big to be acute

Answer:

obtuse isosceles

Step-by-step explanation:

An obtuse triangle has one angle measuring more than 90º but less than 180º (an obtuse angle). It is not possible to draw a triangle with more than one obtuse angle. Note: It is possible for an obtuse triangle to also be scalene or isosceles. An equiangular triangle has three congruent angles.

What does Solving a system by Substitution mean?

Answers

I think the answer is c

I need to know what is the factor is the ball height changing after each bounce

Answers

Answer:

After each bounce it reaches a height which is 75% of its maximum height after the previous bounce.

Step-by-step explanation:

I don’t know what to do please help

Answers

Answer:

haha um make conversation

Step-by-step explanation:

Ok from experience texting back multiple times when the person is just leaving you on scene is a little weird. There could be multiple things happening and constantly trying to get a answer is kinda pressuring the person to text back even if they don’t know what to say.

f(x) = 3x - 1

Consider the function below. Find f(x) = 32 *find x value*

Answers

Answer:

f(32) = 95

Step-by-step explanation:

f(32) = 3(32)-1

f(32) = 96 - 1

f(32) = 95

Hope this helps have a great day

If m
A.140

B.60

C.50

D.40

Answers

Answer:

140

Step-by-step explanation:

Angle C = 180-A-B

C=180-80-60=40

DCA = 180-Angle C

DCA = 180-40

Kevin needs to buy some cardboard to build a box 11 inches long, 7 inches wide, and 10 inches high. How much cardboard is needed to build the box?

Answers

Answer:

770 inches of cardboard is needed to build this box

Step-by-step explanation:

Use the formula for cubes B x W x H

The base of the cube will be 7 inches the length is 11 inches, and the height is 10 inches. Then, we multiply.

7 x 11 x 10 = 770

Question #5: You decided to paint one of the walls in the dining room the color blue. The shape of the wall is shown below. One gallon of paint covers 50 square feet. The wall will need two coats of paint. How many gallons of paint will you need to buy?



Total area of the wall:

Gallons of paint needed:

Answers

Answer:

Step-by-step explanation:

Draw a horizontal line from the top corner of the left wall to the right wall. Now you have a rectangle on the bottom 8’x10’ (80 square feet) and a triangle on the top with a height of 5’ and a base of 8’. 1/2 base times height =20. You need to paint 100 sq feet so you need 2 gallons.

Work out the size of an exterior and an interior angle of a regular 18-sided polygon.

Answers

Answer:

160 and 20 degrees

Step-by-step explanation:

Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.
I don't want links.
I don't want links.
I don't want links.

Answers

Answer: the answer is b

Step-by-step explanation:

B) 14x^2+37x+5
hope this helps!


HELP PLEASE
LIAM SAYS -(5/12) is equal to 5/-12 is he correct or wrong ?

Answers

Answer:

He's incorrect

Step-by-step explanation:

lf you put -(5/12) you get -2 1/2 and 5/-12 is -0.4166 and so forth. You can tell these number's aren't the same, so always check with a culculator to make sure. In this case he is wrong.

Easy math please help!!

James is making orange juice from concentrated frozen orange juice that he must mix with water. The concentrated juice is in 12 fluid ounce cartons. The ratio of orange juice concentrate to water is 12 fluid ounces to 36 fluid ounces. If James needs 4.5 gallons of orange juice, which is 576 fluid ounces, how many cartons of concentrated orange juice does he need? (Your answer should just be a number.)

Answers

Answer:

48

Step-by-step explanation:

What is the value of the expression -9 x 2.2?

Answers

The answer is -19.8 because a negative times a positive is negative

Martika surfs with her friends at Virginia Beach. Her friend, Mark caught 8 waves out of 20 possible waves to ride in the shore. They plan to stay out in the water for 50 more waves. How many of the 50 waves do you predict Mark will catch?

Answers

Answer:

40 waves

Step-by-step explanation:

Prob (Mark catches waves) = Times waves caught / Total waves =  8 / 20 =  4 / 5 = 20%

Predicted waves out of 50 , caught = 4 / 5 or 20% of 50  = (4 / 5) x 50 = 40

Alternatively, multiplying numerator & denominator of wave catch probability ie 4 / 5 with 10 each , we get (4 x 10) / (5 x 10) = 40 / 50 . This also signifies 40 out of 50 waves are predicted to be caught.

Which pair of angles must be supplementary?
A. <1 and <5
B. <5 and <3
C. <4 and <5
D. <4 and <1

Answers

Answer:

I think C but I could be wrong

Step-by-step explanation:

The graph of a function is shown below. yeah
Which value is not in the range of the function?

Answers

Answer:

There is no graph included.

Step-by-step explanation:

However, the range is all the y-values (that do not repeat).

So when you look at your graph, find your y-values and write them as set. That is your answer.

Jasmine had an average daily balance of $1,608.24 for the last billing cycle, which had 31 days. If her credit cards charges an APR of 22.99%, what would her finance charges be for the last billing cycle?

Answers

Answer:

Finance per billing cycle = $ 30.91

Step-by-step explanation:

First, we will calculate the APR for 1 day:

APR per day = (22.99%/year)(1 year/12 month)(1 month/31 days)

APR per day = 0.062 % / day

Now, we will calculate the finance per day:

Finance per day = (Daily Balance)(APR per day) = ($ 1608.24)(0.062 %/day)

Finance per day = $0.99/day

Now, we will calculate the finance for one billing cycle:

Finance per billing cycle = (Finance per day)(31 days) = ($ 0.99/ day)(31 days)

Finance per billing cycle = $ 30.91

Factorise: 5x + 25
with the steps ​

Answers

Answer:

5(x + 5)

Step-by-step explanation:

The first step is to divide, so:

5 ÷ 5 = 1

25 ÷ 5

---------------------------------------------------------------------------------------------------------------

So then:

5(x + 5)

---------------------------------------------------------------------------------------------------------------

Have a good day :)

Answer:

5(x+5)

Step-by-step explanation:

5x + 25

5*x + 5*5

Factor out a 5

5(x+5)

Find the value of x.

Answers

Answer:

x = 4

Step-by-step explanation:

The angle next to (adjacent to) 19x + 3 is 180 degrees less (19x + 3):

180 - (19x + 3)

and the three interior angles of the triangle must sum up to 180 degrees:

11x - 2 + 180 - 19x - 3 + 9x + 1 = 180, or

11x - 2 - 19x - 3 + 9x + 1 = 0

Combining like terms, we get:

x = 4

2. Find the missing side length
of the right triangle below.
25 ft.
24 ft.

Answers

Answer:

1 ft

Step-by-step explanation:

A^2+B^2=C^2

We have A and C

So 24+B^2=25

Subtract 24 from both sides

B^2=1

Square root both sides

B=1

Answer:

7 ft

Step-by-step explanation:

eh don't wana explain but I'm 80% sure that's the answer

There is 1/3 of a pizza left to split between 3 of your friends. If you split the pizza equally. What fraction of the pizza will each of your friends get.

Answers

Answer:

Each friend will get 1/9 of the pizza (I think).

Step-by-step explanation:

I believe you would divide 1/3 by 3, or in other words, multiply 1/3 * 1/3:

1/3 * 1/3 = 1/9

Have a nice day!! It would be TOTALLY RAD if I could get brainliest!!!

The answer is 1/9, all you have to do is divide 1/3 by 3!

The graph of a linear system is shown​

Answers

answer:

(2,6)

step-by-step explanation:

when solving by graphing, their interaction point is the solution

Answer:

(2, 6)

Step-by-step explanation:

you can find the solution to a linear system by looking at the plot points they intersect at.

hope this helped!

5/8 + 3/4
—————
-2/3 - 5/6

Help please

Answers

Answer:

-11/12

Step-by-step explanation:

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