Question

In the figure shown, what is the measure of angle x?

Triangle ABC has measure of angle BAC equal to 30 degrees and the measure of angle ABC is equal to 75 degrees. The side BC of the triangle is extended till D. The angle ACD is labeled as x.

150 degrees
110 degrees
105 degrees
100 degrees

Answer 1

@jprose

Answer 2

first of all do you know how many degrees are in a triangle?

Answer 3

ya 90

Answer 4

no there are 180, 90 degrees is a right angle

Answer 5

oh ok

Answer 6

so what is 30+75

Answer 7

105

Answer 8

how did u get those numbers

Answer 9

oh never mind i found them lol

Answer 10

alright good and i got those because they are the two angle measurements that you know inside the triangle so now you subtract 105 from 180 because there are 180 degrees in a triangle

Answer 11

ok thank u so much could u help me with a couple more because i realy need help

Answer 12

do you know the answer it isnt 180-105 which is 75 u subtract 75 from 180 and get 105 so c is the answer and sure ill help u

Answer 13

ya did and thank u ok

Answer 14

A cone shaped hat is shown:

A cone is shown with slant height 14 cm and radius 6.2 cm. The unknown height is labeled with a question mark, and the line joining the tip of the cone to the base is perpendicular to the base.

What is the approximate height of the hat?

2.79 centimeters, because height = Square root of the difference of 14 and 6.2
4.49 centimeters, because height = Square root of the sum of 14 and 6.2
12.55 centimeters, because height = Square root of the difference of squares of 14 and 6.2
15.31 centimeters, because height = Square root of the sum of the squares of 14 and 6.2

Answer 15

i did get that

Answer 16

you use the Pythagorean theorem A^2+B^2=C^2 so you know A and c so you actually do C^2-A^2=B^2 so you just plug in the numbers 14^2-6.2^2=B^2 196-38.44=157.56 \[\sqrt{157.56}=\] 12.55

Answer 17

ok i see

Answer 18

The graph of a function is shown:

A coordinate grid is shown from negative 5 to 5 on both axes at increments of 1. A graph shows three straight lines. The first straight line joins ordered pair negative 3, negative 2 with negative 2, 2. The second straight line joins ordered pair negative 2, 2 with 2, 2. The third straight line joins ordered pair 2, 2 with 4, 0. The ordered pair negative 3, negative 2 is labeled as A, the ordered pair negative 2.5, 0 is labeled as B, the ordered pair negative 2, 2 is labeled as C, the ordered pair 2, 2 is labeled as D, and the ordered pair 4, 0 is labeled as E.

In which interval is the graph constant?

AB
BC
CD
DE

Answer 19

.

Answer 20

which two points do not change over time?

Answer 21

DandE

Answer 22

DE

Answer 23

no those are decreasing CD are constant

Answer 24

how

Answer 25

A cylindrical well is 20 meters deep and has a diameter of 1.5 meters. Approximately how many cubic meters of soil were dug out to make the well? (Use π = 3.14.)

11.78 cubic meters
35.33 cubic meters
121.20 cubic meters
141.30 cubic meters

Answer 26

because they do not change over time they are a constant y=2 and it would be d because you use the equation V=πr^2h

Answer 27

Orio and Ted buy an equal number of comic books every month. The following equation shows the number of comic books, y, that Orio has after x months:

y = 2x + 15

The following graph shows the number of comic books, y, that Ted has after x months:

Graph shows Months on x axis and Number of Comic Books on y axis. The scale on x axis is shown from 0 to 5 at increments of 1. The scale on y axis is shown from 0 to 14 at increments of 2. The title of the graph is Teds Comic Books. A straight line is shown which joins the ordered pair 0, 6 and 4, 14

After 2 months, how many more comic books does Orio have than Ted?

1
2
4
9

Answer 28

.

Answer 29

at 4 months ted has 14 and orio has 23

Answer 30

do i subbtract that

Answer 31

so its 9

Answer 32

Triangle LMN with vertices L(6, −8), M(4, −4), and N(−12, 2) is dilated by a scale factor of 2 to obtain triangle L′M′N′. Which statement best describes triangle L′M′N′?

It is similar to triangle LMN and has coordinates L′(12, −16), M′(8, −8), and N′(−24, 4).
It is congruent to triangle LMN and has coordinates L′(12, −16), M′(8, −8) and N′(−24, 4).
It is similar to triangle LMN and has coordinates L′(3, −4), M′(2, −2), and N′(−6, 1).
It is congruent to triangle LMN and has coordinates L′(3, −4), M′(2, −2), and N′(−6, 1).