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3 years ago

4 ∈ {4, 14, 17} is this true or false

1 answer:

5 0

The symbol "∈" means "belongs to".
This means that a certain element belongs to or is found in the set.

The set given contains three numbers which are 4, 14 and 17.
As you can see, 4 is found in this set, therefore, 4 belongs to this set.

Based on this, the given statement is true.

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Dave surveyed 80 7th-graders and 90 8th-graders. He found that about 75% of the 7th-graders like pop music, while 80% of the 8th

dimaraw [331]

8th Grade: 90 x 0.80 = 72

7th Grade: 80 x 0.75 = 60

Conclusion: 8th Graders like pop music more because 72 out of the 90 in 8th grade Dave surveyed enjoy it, compared to the 60 out of 80 in 7th grade that enjoyed it.

5 0

2 years ago

FIND PR.PLS HELP BRAINLIEST...

slega [8]

Answer:

6.2 units.

Step-by-step explanation:

We are given two angles and an opposite corresponding side. To solve for an unknown side, we can use the law of sines.

$\frac{8}{sin(90)}=\frac{x}{sin(180-39-90)}=\frac{x}{sin(51)}$

Cross multiplying and solving will get you this:

$x=\frac{8(sin(51))}{sin(90}$

Which can simplify to:

$x=8(sin(51))$

Which putting into a calculator gets you:

$x=6.2$

So the line PR is 6.2 units long.

6 0

3 years ago

Adele is 5 years older than Timothy. In three years, Timothy will be of Adele’s age. What is Adele’s current age?

Vera_Pavlovna [14]

8 ... u gotta add 5+3 which is 8 soo ya\ prolly wrong (I kinda stink at math)but whatevs

4 0

3 years ago

What is the sale tax of a sweater for 36$ and a 7% sales tax

Ronch [10]

36 × 0.07 = $2.52 sales tax

5 0

3 years ago

In the given figure, identify which of the line segments is longer than XY. Question 15 options: A) TU B) PQ C) VW D) RS

dalvyx [7]

Answer:

A. T, U

Step-by-step explanation:

T and U are stretched across the paper. the others seem a bit close or smaller to the size of X and Y, but when you look at T and U they seem longer than X an Y

Hope this helps!!! :)

7 0

3 years ago