Corrext classification of 18x

Answers

Answer 1

Answer: from previous quesiotn I am assuming whatnomial

1 term, 18x
monomial

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This question was on the most recent SAT Mathematics Level 2 test. If two spheres with unequal diameters intersect, what could be the intersection?a. a pointb. a circlec. a sphered. a point or a spheree. a circle or a sphere99 points. Please provide a detailed and explanative answer.

From the sum of 3x+ 5y -2 and 2x-3y +1 subtract the sum of 4x -8y +3 and -5x + 6y +7

Answers

Answer:

First, let's simplify both sums by combining like terms:

3x + 5y - 2 + 2x - 3y + 1 = 5x + 2y - 1

4x - 8y + 3 - 5x + 6y + 7 = -x - 2y + 10

Now we can subtract the second sum from the first:

(5x + 2y - 1) - (-x - 2y + 10) = 5x + 2y - 1 + x + 2y - 10

Simplifying this expression, we get: 6x + 4y - 11

The measure of each angle of a triangle is a multiple of 30°. What is the probability that the triangle has at least two congruent angles?

Answers

Well, the triangle could have a few possibilities to get the angles. They are:
30-30-120
30-60-90
30-90-60
30-120-30
60-30-90
60-60-60
60-90-30
90-30-60
90-60-30
Thus, there are 9 possible cases. Out of them 3 are good, so the probability is 1/3, or 33%.

Answer:

33%

Step-by-step explanation:

In basketball, Shaquille makes 40% of his free throw attempts. He goes to the free throw line to shoot one and one ( if he makes the first shot, he gets to shoot one more). He scores 1 point per free throw. What is the expected value of the number of points he will score?

Answers

Situations:
1) he makes 1st shot + he makes 2nd shot
P(A) = 0.4 · 0.4 = 0.16 ( 16 % )
2) he makes 1 st shot + he misses 2nd shot
P(B) = 0.4 · 0.6 = 0.24 ( 24 % )
3) he misses 1st shot and he has no more attempts
P (C) = 0.6 ( 60 %)
0.16 · 2 + 0.24 · 1 + 0.6 · 0 = 0.32 + 0.34 = 0.56
The expected value is 0.56 points.

.56 is the answer....

an environmental group is making signs for an upcoming community recycling day. They want the signs to be equilateral triangles with heights of 35 in. How long in inches is each side of the signs be? Round your answer to the nearest tenth of an inch

Answers

Hello,

If x is the hypotenus,x/2 is the half base of the triangle
so with the Pythagorean theorem, we know that:

x²=(x/2)²+35²
==>x²=x²/4 +35²
==>3x²/4=35²
==>x²=4*35² /3
==>x=2*35/√3
==>x=70/√3
==>x=40,41451884...≈40.4 (in)

This is a question for Pythagoras!

x^2 - 1/2x^2 = 35^2
1/2x^2 = 35^2
x^2 = 2(35^2)
x^2 = 2450
x = 49.49747

To the nearest tenth of an inch, the answer is 49.5

What is 3/5 of 60 students?

Answers

3/5 of 60= 60 divided by 5= 1212 x 3= 36

A school librarian can buy books at a 20% discount from the list price. One month she spent $72 for books. What was the list price value of the books? Is the answer $90?