All categories

3 years ago

If y=5 then what is 7+2y2 . I needed help

Mathematics

2 answers:

Ipatiy [6.2K]3 years ago

4 0

Answer:

Step-by-step explanation:

Remember when an exponent is given and says to solve for any variable, you will plug the number in the variable ( the number given for the variable ) and first solve for exponent. Then solve the rest. Hope this helps, thank you !!

Orlov [11]3 years ago

3 0

2y^2 (squared)?
Plug 5 in for “y”
7+2(5)^2
PEMDAS/GEMDAS
1. exponents first
5^2=25
2. multiply
25 times 2=50
3. add
50+7= 57

If not exponent: 7+2y(2)
1. plug in 5 for y
2 times 5= 10

2. multiply by 2
10 times 2=20

3. add
20+7=27

You might be interested in

PLEASE HELP MEEEEEE<br><br> f(x)=4x + 5<br> f (-3)

Dafna1 [17]

Answer:

evaluate the function with -3 as x value

Step-by-step explanation:

4(-3) + 5

-12 + 5

= -7

7 0

3 years ago

Read 2 more answers

Help please!! I need to figure out the are of the shape pls explain answer

Andrews [41]

Answer:

390 ft²

Step-by-step explanation:

25x10= 250

20x7= 140

250+140= 390

4 0

1 year ago

Read 2 more answers

Write 9x² - 36x = 4y² + 24y + 36 in standard form

Kisachek [45]

Answer:

9·x² - 36·x = 4·y² + 24·y + 36 in standard form is;

(x - 2)²/2² - (y + 3)²/3² = 1

Step-by-step explanation:

The standard form of a hyperbola is given as follows;

(x - h)²/a² - (y - k)²/b² = 1 or (y - k)²/b² - (x - h)²/a² = 1

The given equation is presented as follows;

9·x² - 36·x = 4·y² + 24·y + 36

By completing the square, we get;

(3·x - 6)·(3·x - 6) - 36 = (2·y + 6)·(2·y + 6)

(3·x - 6)² - 36 = (2·y + 6)²

(3·x - 6)² - (2·y + 6)² = 36

(3·x - 6)²/36 - (2·y + 6)²/36 = 36/36 = 1

(3·x - 6)²/6² - (2·y + 6)²/6² = 1

3²·(x - 2)²/6² - 2²·(y + 3)²/6² = 1

(x - 2)²/2² - (y + 3)²/3² = 1

The equation of the hyperbola is (x - 2)²/2² - (y + 3)²/3² = 1.

5 0

2 years ago

What is the solution to this equation 1^6 x =2

Alenkinab [10]

<h2>Greetings!</h2>

Anything to the power of 1 is still 1, because $1^{6}$ is simply 1 x 1 x 1 x 1 x 1 = 1 ect.

<h3>So this changes the equation to 1x = 2, which means that:</h3>

x = 2

<h2>Hope this helps!</h2>

8 0

3 years ago

Read 2 more answers

Surface area of a cylinder. (see attached image please)

Zolol [24]

Answer:

$\large{ \tt{❃ \: EXPLANATION}} :$

Firstly you need to remember the formula to find out surface area of a cylinder - Surface area of a cylinder = 2πr ( r + h ) where r is the radius of a circular face and h is the height of the cylinder.

We're provided : Diameter of cylinder = 12 which means radius ( r ) = 6 cm [ Radius is the half of diameter ] & Height ( h ) = 25 cm & we know pi ( π ) = 22/7.

$\large{ \tt{❁ \: LET'S \: SOLVE}} :$