3 years ago

PLEASE I NEED HELP :((((;((((

Mathematics

1 answer:

ser-zykov [4K]3 years ago

6 0

Answer:

Complete explanation is in the picture.

Step-by-step explanation:

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How much of the circle is shaded? Write your answer as a fraction in simplest form. 1/3 and 1/7

Ludmilka [50]

Answer:

11/21

Step-by-step explanation:

1/3=7/21

1/7=3/21

(7+3)/21=10/21

21/21-10/21=11/21

Thus 11/21 of the circle is shaded.

6 0

3 years ago

H = {z∣z ∈ N and 82 ≤ z ≤ 106}<br><br><br> H has ___ subsets.<br> H has ___ proper subsets.

IRINA_888 [86]

Answer:

Step-by-step explanation:

Notice that H is a set with 106 - 81 = 25 elements.

Hence H has $2^{25}$ subsets.

In order to get the proper subsets of H we just need to deduct one from $2^{25}$

So there are $2^{25}-1$ proper subsets.

4 0

3 years ago

Um terreno retangular possui o comprimento cinco vezes maior que a largura. Sabendo que o perímetro desse terreno é igual a 180

icang [17]

Responder:

15 m e 75 m

Explicação passo a passo:

Deixar :

Largura = x

Comprimento = 5x

Perímetro = 180

Já o terreno tem uma forma retangular; usamos a relação;

Perímetro = 2 (comprimento + largura)

180 = 2 (5x + x)

180 = 2 (6x)

180 = 12x

180/12 = x

15 = x

Largura = x = 15 metros

Comprimento = 5x = 15 * 5 = 75 metros

Medida de largura e comprimento, respectivamente:

15 m e 75 m

6 0

3 years ago

What are the subsets of set B =(a. b. c. d)?

noname [10]

Answer:

{},{a},{b},{c},{d},{a,b},{a,c},{a,d},{b,c},{b,d},{c,d},{a,b,c},{a,b,d},{a,c,d},{b,c,d},{a,b,c,d}

Step-by-step explanation:

5 0

3 years ago

You lose 2 points every time you forget to write your name on a test. You have forgotten to write your name 4 times. What intege

Gelneren [198K]

Answer:

-8

Step-by-step explanation: since it says Times, (for me times is multiplication) you would multiply -2 and 4. negative 2 would be from that person losing 2 points. and 4 since it is your total amount of times you have forgotten to write your name. so, -2 x 4 = -8.

how i got -8. both signs from -2 and 4 are different, and when they are different the answer will always be negative.

7 0

3 years ago