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hodyreva [135]
3 years ago
12

Let a = {1, 2, 3, 4, 5} and b = {2, 4}. what is a ∩ b?

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
8 0
That upside down u looking thing is the " intersection " of sets a and b. That means only the numbers that are in both sets.
answer is : 2,4
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Help with the linear equations
IgorC [24]

Answer:

y \: intercept =  - 1 \frac{1}{2}

Step-by-step explanation:

The y intercept form for the equation of a line is

y = mx + c

You should note that <em>c</em> represents the y-intercept of the line (where the line touches the y-axis)

y = mx + c \\ \\ we \:were\: given \:the \:equation \:y = x - \frac{3}{2} \\ \\ therefore \: the\: value \:of \:c \:is\: - \frac{3}{2} \:or -1 \frac {1}{2}

7 0
1 year ago
Please help me please
HACTEHA [7]

Answer:

200.96 ft²

Step-by-step explanation:

The area (A) of a circle is calculated as

A = πr² ( r is the radius ) , then

A = 3.14 × 8² = 3.14 × 64 = 200.96 ft²

4 0
2 years ago
Leon has already run 1 mile on his own, and he expects to run 3 miles during each track practice. Write an equation that shows t
maks197457 [2]

Answer:

d = 1 + 3p  

Step-by-step explanation:

Leon already ran 1 miles on his own and he is expected to cover a distance d of 3 miles during each practice. The number of practices is expressed as p and the distance covered is expressed as d.

For every track practice he is expected to cover a distance of 3 miles. Recall he has already cover 1 mile on his own.

Therefore, the relationship between the practices p and the distance d can be expressed as follows.

number of track practice = p

distance covered = d

The distance covered  d in miles is 1 miles plus the number of track practice p multiply by 3

d = 1 + 3p  

5 0
3 years ago
Can you factorise<br> X=3a-2x10-2a
tamaranim1 [39]

x = 3a - 2·10 - 2a

x = 3a - 2a - 20

x = a - 20

6 0
3 years ago
What is the area of this figure?<br> Use 3.14 for TT.<br><br> Please help
german

Answer:

406.08

Step-by-step explanation:

First FInd the area of the rectangle : which is short side * long side

-> 15*12=180m

Then find the area of the half circle, the formula of the area of a circle is \pi r^2

here it's half a circle so it's \frac{\pi r^2}{2} where r is 12

-> 3.14\cdot \frac{\left(12\right)^2}{2}=226.08 m

Finally just add the area of the rectangle with the area of the half circle

-> 180+226.08=406.08 m

5 0
2 years ago
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