3 years ago

Find A ∩ B if A = {4, 7, 10, 13, 17} and B = {3, 5, 7, 9}.

Mathematics

1 answer:

Korvikt [17]3 years ago

8 0

Their intersection is 7 because is you look at the coordinates of both A and B they have 7 in common

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Twice a number is 12 more than 5 times the number.

stira [4]

Answer:

-4

Step-by-step explanation:

Let the number be x:

2x = 5x + 12
2x - 5x = 12
-3x = 12
x = -4

It is -4

5 0

3 years ago

A cone is placed inside a cylinder as shown. The radius of the cone is half the radius of the cylinder. The height of the cone i

wolverine [178]

R = radius of cone
2r = radius of cylinder
Then height of cone is 2r.
Volume of Cone is Pi * r^2 * 2r = 2Pi*r^3

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4 years ago

If a =2, find 4a + 18

FinnZ [79.3K]

4×2+18

= 8+18

=26....

answer is 26..

6 0

2 years ago

Read 2 more answers

Solve each of the following quadratic equations 3x=0.5x^2 0=5x^2-2x+6

UNO [17]

Question 1

$3x=0.5x^{2}\\\\6x=x^{2} \\ \\ x^{2}-6x=0 \\ \\ x(x-6)=0 \\ \\ \boxed{x=0, 6}$

Question 2

$0=5x^{2}-2x+6 \\ \\ x=\frac{2 \pm \sqrt{(-2)^{2}-4(5)(6)}}{2} \\ \\ x=\frac{2 \pm \sqrt{-116}}{10} \\ \\ x=\frac{2 \pm 2i\sqrt{29}}{10} \\ \\ \boxed{x=\frac{1 \pm i\sqrt{29}}{5}}$

6 0

2 years ago

What are the intercepts to the line

Roman55 [17]

The x-intercept is 8 because it passes through the horizontal line (x) at point 8.
The y-intercept is -4 because it passes through the vertical line a (y) at point -4.
The correct answer is B.
Hope this helps!

5 0

3 years ago