Please help, lots of points offered. No scam answers.

n(AUB)=n(A)+n(B)-n(AnB)

=25+27-10

=52-10

=42

n(AUB)=n(A)+n(B)-n(AnB)

=25+27-10

=52-10

=42

The formula for the number of elements in A union B is n(A U B) = n(A) + n(B) - n(A ∩ B).

What is AUB A ∩ B?

The union of two sets A and B, written A U B, is the combination of the two sets. Intersection The intersection of two sets A and B, written AnB, is the overlap of the two sets.

Learn more about sets here

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Answer:

-92+-120=e)-212

Step-by-step explanation:

Answer:

m=7

Step-by-step explanation:

divide by both sides by 2 then you will remain with m is the equal to 7

Answer:

7

Step-by-step explanation:

2m = 14

=> m = 14/2

=> m=7

7/20 is your answer

0.35=7/20

Answer:

According to my equation it's 20°

Answer:

9.6 square inches.

Step-by-step explanation:

We are given that ΔBAC is similar to ΔEDF, and that the area of ΔBAC is 15 inches. And we want to determine the area of ΔDEF.

First, find the scale factor k from ΔBAC to ΔDEF:

[tex]\displaystyle 5 k = 4[/tex]

Solve for the scale factor k:

[tex]\displaystyle k = \frac{4}{5}[/tex]

Recall that to scale areas, we square the scale factor.

In other words, since the scale factor for sides from ΔBAC to ΔDEF is 4/5, the scale factor for its area will be (4/5)² or 16/25.

Hence, the area of ΔEDF is:

[tex]\displaystyle \Delta EDF = \frac{16}{25}\left(15\right) = 9.6\text{ in}^2[/tex]

In conclusion, the area of ΔEDF is 9.6 square inches.

Answer:

mark me as brainliest ❤️

Answer:

a = -5

Step-by-step explanation:

IF A = -5

6 ( - 5 ) + 9

- 30 + 9

-21

-21 is less than -15 so it works

Step-by-step explanation:

I can help you this much....

Answer:

x = 5, -4

Step-by-step explanation:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

Answer:

x = 5, x = -4

Explanation:

Solve with the quadratic formula

[tex]x_{1,2} =\frac{-(-1)+-\sqrt{(-1)^2-4*1*(-20)} }{2*1}[/tex]  =  [tex]x_{1,2} = \frac{-(-1)+-(9)}{2*1}[/tex]

Separate the solutions

[tex]x_1 = \frac{-(-1)+9}{2*1} , x_2 = \frac{-(-1)-9}{2*1}[/tex]

[tex]x_1 = 5\\x_2 = -4[/tex]

Answer:

x = 7 ,y = 8

Step-by-step explanation:

mark me as brainliest ❤️

Answer:

the answer will be 4x²...last option

Answer:

Answer is 4x² = 36

Step-by-step explanation:

Let that number be x:

[tex]4 \times x {}^{2} = 36 \\ {4x}^{2} = 36[/tex]

further more:

[tex] {x}^{2} = \frac{36}{4} [/tex]

take a square root:

[tex] \sqrt{ {x}^{2} } = \sqrt{ \frac{36}{4} } \\ \\ x = \frac{ \sqrt{36} }{ \sqrt{4} } \\ \\ x = \frac{6}{2} \\ \\ x = 3[/tex]

Answer:

5

Step-by-step explanation:

5×7×2=2×5×7

hope this helps!!

Answer:

5

Step-by-step explanation:

communtative property is just mixing around teh numbers for a different equation. Same numbers, different order

Answer:

Yeah you can mark them brainlist but just saying you can always use math-ways i guess.

Bye have a nice day

Answer:

the play area is a circle with radius = 12

Step-by-step explanation:

Circle area = A= π r²

r = radius

A = 144 π = 452.39

Diameter = 2r

= 24

circumference = C = 2π r

= 24 π = 75.4

Q2)

Area = π r²

r = 15

r²= 225

area = 706.5

Answer:

[tex]\frac{6}{160} = \frac{3}{80} = .0375[/tex]

Step-by-step explanation:

do yo want it as a decimal or a fraction?

Answer:

0.0375

Step-by-step explanation:

6 ÷ 160 =  0.0375 (answer is rounded to 4 places)

Answer:

3 hours and 17 mintues

Step-by-step explanation:

You subtract  834 by 517

Ans4

Step-by-step explanation:

Step-by-step explanation:

25 . f (-6) = 7

26 . f (0) = -2

27 . x = 2

28 . x = -4

Answer:

c = -25

Step-by-step explanation:

1. 23 - 6c = 48 - 5c

(add 5c to both sides)

2. 23 - c = 48

(subtract 23 from both sides)

3. -c = 25

(divide by -1 to both sides)

c = -25

Answer:

[tex]w + \frac{5}{6} t - \frac{2}{3} r[/tex]

Step-by-step explanation:

[tex] \frac{2}{3} w + \frac{5}{6} t + \frac{1}{3} w - \frac{2}{3} r[/tex]

[tex] \frac{2}{3} w + \frac{1}{3} w = \frac{2w}{3} + \frac{1}{3} w[/tex]

[tex] \frac{2w}{3} + \frac{w}{3} = \frac{2w + w}{3} [/tex]

[tex] \frac{3w}{3} = w[/tex]

[tex] = w + \frac{5}{6} t - \frac{2}{3} r[/tex]

Answer:

9x

Step-by-step explanation:

)

Answer:

=13r

Step-by-step explanation:

All you have to do is sum and subtract where the sign applies

8r+9r-11r+7r

=17r-4r

=13r

Answer:

c) 2/15

Step-by-step explanation:

LA= 2/3 = 10/15

S=1/5 = 3/15

15/15 - 13/15 = 2/15

Math books= 2/15

Answer:

36

Step-by-step explanation:

9÷1/4

=9×4

=36

Step-by-step explanation:

megan owes the bank 14 dollars, but she then deposits 6 dollars. she now owes the bank 8 dollars

Answer:

Step-by-step explanation:

Answer:

7.99- no

8.162- no

8.074- yes

8.13- yes

8.012- no

Step-by-step explanation:

7.99 to the nearest tenth = 8.0

8.162 to the nearest tenth= 8.2

8.074 to the nearest tenth=8.1

8.13 to the nearest tenth=8.1

8.012 to the nearest tenth=8.0

When rounding to the nearest tenth look at the place after it. If it is less than five then the number in the tenth will be rounded to 0. However if the following digit is 5 and above, 1 is added to the number you are rounding.