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3 years ago

True or false: In naming arcs, ABC is equivalent to AC

Mathematics

1 answer:

tester [92]3 years ago

3 0

Answer:

True

Step-by-step explanation:

I have a picture of my notes right here

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- GO DEEPER Marco received a gift card. He used it to

ANEK [815]

Answer:30$

Step-by-step explanation:$10.50 times two is 21 plus the handlebar would make it $29.25

8 0

3 years ago

Pls helppppppppppppp

Galina-37 [17]

Answer:

Determining the height of a cylinder given volume and radius

Step-by-step explanation:

For a right circular cylinder:

$v = \pi {r}^{2} h$

6 0

1 year ago

△klm, lm=20 sqrt 3 m∠k=105°, m∠m=30° find: kl and km

Anarel [89]

Answer:

KL = $\frac{20\sqrt{6}}{1+\sqrt{3}}$ = 17.93

MK = $\frac{40\sqrt{3}}{1+\sqrt{3}}$ = 25.36

Explanation:

According to the Law of Sines:

$\frac{a}{sinA}=\frac{b}{sinB}= \frac{c}{sinC}$

where:

A, B, and C are angles

a, b, and c are the sides opposite to the angles

First of all, let's find m∠L: the sum of the angles of a triangle is 180°, therefore

m∠K + m∠L + m∠M = 180°

m∠L = 180° - m∠K - m∠M

m∠L = 180° - 105° - 30°

m∠L = 45°

Now, we can apply the Law of Sines to our case (see picture attached):

$\frac{LM}{sinK}=\frac{MK}{sinL}=\frac{KL}{sinM}$

Let's solve one side at the time:

$\frac{LM}{sinK}=\frac{MK}{sinL}$

$\frac{20\sqrt{3}}{sin(105)}=\frac{MK}{sin(45)}$

$MK = \frac{20\sqrt{3} }{sin(105)} \cdot sin(45)$

MK = $\frac{40\sqrt{3} }{1+\sqrt{3} }$ = 25.36

Similarily:

$\frac{LM}{sinK}=\frac{KL}{sinM}$

$\frac{20\sqrt{3}}{sin(105)}=\frac{KL}{sin(30)}$

$KL = \frac{20\sqrt{3} }{sin(105)} \cdot sin(30)$

KL = $\frac{20\sqrt{6}}{1+\sqrt{3}}$ = 17.93

8 0

3 years ago

Chang used a coordinate plane to show where his posters are displayed on his bedroom wall. Three posters are located at E(5, 3),

arlik [135]

Answer:

EF = 9

GF = 2

Step-by-step explanation:

For EF, we want to find the distance between their c coordinates, since their y coordinates are the same. We want the distance between -4 and 5, which when you add their distance from 0, is 9.

For GF, they share the same x coordinate, so you're finding the distance between their y coordinates, which are 3 and 5. The distance between the two is 2, so the length of GF is 2.

5 0

3 years ago

Which equation describes this graph?

Slav-nsk [51]

Answer:

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-1-9)/(-3-2)

m=10/-5

m=-2

y=-2x+b

9=-2*-3+b

9=b+6

b=3

y=-2x+3

3 0

3 years ago