2 years ago

PLSSSS HELP ME!! Which of the following graphs represents a function?

Mathematics

1 answer:

ella [17]2 years ago

4 0

Answer:

Step-by-step explanation:

In graph A no two points have the same x-coordinate. That makes it a function.

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Triangle A B C is shown. Angle A B C is 95 degrees and angle B C A is 45 degrees. The length of A B is c and the length of B C i

NARA [144]

Answer:

(B)c = StartFraction (3) sine (45 degrees) Over sine (40 degrees) EndFraction

$c=\dfrac{3 * \sin 45}{sin 40}$

Step-by-step explanation:

In Triangle ABC is shown.

$\angle A B C=$ 95 degrees

$\angle B C A =$ 45 degrees.

|AB|=c

|BC|=3.0 cm

$\angle A+\angle B+\angle C=180^\circ\\\angle A+95+45=180\\\angle A=180-140=40^\circ$

Using the Law of Sines

$\dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}$

$\dfrac{3}{\sin 40}=\dfrac{c}{\sin 45}\\\\$Cross multiply\\c*\sin 40 =3 * \sin 45\\\\c=\dfrac{3 * \sin 45}{sin 40}$

The correct option is B.

6 0

2 years ago

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A school has 840 pupils, if the school hall has seats 85% of the pupils, how many pupils will have no seats?

ioda

Answer:

126

Step-by-step explanation:

So theres 840 people and 85% got a seat

We just do 840 * 85% = 714

then to find the people without the seat

840 - 714 = 126

3 0

2 years ago

It costs $1.08 to buy 3 green marbles. If the marbles all have the same price, how much

Naily [24]

Answer:

0.36$

Step-by-step explanation:

1.03/ 3 marbles = 0.36$ per marble.

6 0

2 years ago

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Share 4000 in a ratio 3:4:1

muminat

Answer:

3/8 x 4000 = 1500

4/8 x 4000 = 2000

1/8 x 4000 =500

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2 years ago

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The sum of the angle measures of a polygon with n sides is 18001800. find n.

Contact [7]

Using
(n-2)180 = 18001800
(n-2) = 18001800÷180
n-2 = 100010
n = 100010+2
n= 100012 sides

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2 years ago