2 years ago

Based on this picture, if ∠3 = 50˚then what is m∠8? SHOW WORK PLEASE

Mathematics

1 answer:

zheka24 [161]2 years ago

6 0

The answer is that measure of angle eight is 130°

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Find the surface area of the hemisphere 6cm

lina2011 [118]

Answer:

452.4 cm^2

Step-by-step explanation:

$a = 4\pi {r}^{2} \\ a = 4 \pi \times (6)^{2} \\ a = 452.4 \: cm^{2}$

I hope that is useful for you :)

7 0

2 years ago

How many three letter permutations are possible from the letters in the word ACTION? ("ACT" is not the same as "CAT" so order is

Alinara [238K]

Answer:

120

Step-by-step explanation:

formula:

$\frac{n!}{(n-h)!}=\frac{6!}{(6-3)!}=120$

7 0

2 years ago

Gretchen rode her snowmobile 1 1/4 miles to a snowmobile trail. She rode on the trail for 5 5/6 miles and then rode back home. W

allsm [11]

Answer:

6 18/12 OR simplified 1 6/12

Step-by-step explanation:

1 1/4 + 5 5/6=

1 + 5 = 6

5/6 + 1/4

Mulitipy fraction by 3 and 2

15/12 + 3/12 = 18/12

18/12 = 1 6/12

5 0

2 years ago

Read 2 more answers

Which of the following values of x is a solution to the equation negative 2 x plus 8 equals 14?

andreev551 [17]

Answer:

x= -3

Step-by-step explanation:

-2 x 3 =6 so 6+8=14

5 0

2 years ago

1/4(1/3k+9)=6 step 1- 1/3k=15 step 2- 1/3k=15 step 3- k=5 find Olgas mistake step 1 step 2 steps 3 Olga did not make a mistake

shtirl [24]

Answer:

Step 3 contains error.

Step-by-step explanation:

The given equation is :

$\dfrac{1}{4}(\dfrac{1}{3}k+9)=6$

Step 1.

Cross multiplying,

$(\dfrac{1}{3}k+9)=24$

Step 2.

Subtract 9 from both sides

$\dfrac{1}{3}k+9-9=24-9\\\\\dfrac{1}{3}k=15$

Step 3.

Cross multiplying

$k=15\times 3\\\\k=45$

So, there is an error in step 3. The correct answer should be 45.

3 0

2 years ago