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just olya [345]
2 years ago
15

HELPPP 20 PNTS---- CHOOSE THE WRITE ANSWER!!!!

Mathematics
1 answer:
Rom4ik [11]2 years ago
5 0

Answer:

B. is correct answer I think so

Step-by-step explanation:

i need help please

plz mark me as brilliant

You might be interested in
Simplify the expression: <br> (8+-9)(9+-8)
Paha777 [63]

Answer:

-1

Step-by-step explanation:

(8 + -9)(9 + -8)

A negative times a positive is a negative.

8 + -9

+- = -

8 - 9

8 - 9 = -1

(-1)(9 + -8)

9 + -8

+- = -

9 - 8

9 - 8 = 1

(-1)(1)

Now, we multiply

Remember, a negative times a positive equals a negative.

-1 * 1 = -1

Our answer is -1

5 0
4 years ago
Read 2 more answers
12 less than the quotient of a number and seven is -2 find the number
kiruha [24]
A quotient is the result of a division.
Let the unknown number be x.

We translate the problem into an equation, piece by piece.

<span>"quotient of a number and seven"  ---->   x/7
</span>
<span>"12 less than the quotient of a number and seven"  ---->    x/7 - 12

The word "is" means "="
x/7 - 12 =

All the above is -2, so it equals -2.

x/7 - 12 = -2

\dfrac{x}{7} - 12 = -2

First, add 12 to both sides and simplify.

</span><span>\dfrac{x}{7} - 12 + 12 = -2 + 12

</span>
<span><span><span>\dfrac{x}{7} = 10</span>
</span>
Next, multiply both sides by 7.

\dfrac{x}{7} \times 7 = 10 \times 7

x = 70
</span>
Answer: The number is 70.
5 0
3 years ago
Read 2 more answers
Vamsi is X years old.his brother is 3 years elder to him. his uncle is 4 times his age and his aunt is 5 years younger than his
liberstina [14]

Step-by-step explanation:

<em>Vamsi is X years old</em>

Vamsi = X

<em>his brother is 3 years elder to him</em>

Brother = X + 3

<em>his uncle is 4 times his age</em>

Uncle = 4X

<em>his aunt is 5 years younger than his uncle</em>

Aunt = Uncle - 5

<em>what will be the age of his uncle 6 years from now</em>

= 4X + 6

<em>what are the ages of vamis brother, uncle and aunt?</em>

Assume Vamis = 15 years

Brother = X + 3 = 15 +  3 = 18

Uncle = 4X = 4 * 15 = 60

Aunt = Uncle - 5 = 60 - 5 = 55

<em>what will be the age of his uncle 6 years from now</em>

Uncle = 4X + 6 = 60 + 6 = 66

8 0
3 years ago
Jeanine Baker makes floral arrangements. She has 11 different cut flowers and plans to use 7 of them. How many different selecti
Alex Ar [27]

Answer:

<h2>330 different possible selections are there.</h2>

Step-by-step explanation:

There is a total of 11 cut flowers.

Jeanine Baker has to choose 7 flowers among the 11 flowers.

The formula for choosing r numbers from n numbers is defined by ^{n}C_{r} = \frac{n!}{r!\times(n - r)!}, n > r.

From 11 flowers 7 flowers can be chosen in ^{11} C {7} = \frac{11!}{7!\times4!} = \frac{8\times9\times10\times11}{2\times3\times4}. = 330 ways.

There are 330 possible ways to choose 7 flowers from 11 flowers.

6 0
3 years ago
What can be used to find information the sine of an angle in a right triangle
ad-work [718]
Use the trigonometry triangles SOH CAH TOA
Sin= opposite/hypotenuse
Opposite= opposite the angle
Hypotenuse is the longest side

6 0
4 years ago
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