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alexdok [17]
3 years ago
9

For the points in the table, does pressure vary directly with volume? If so, identify k and write an equation. No, this is not a

direct variation. Yes, this is a direct variation with k = . Yes, this is a direct variation with k = 1. Yes, this is a direct variation with k = 3.
Mathematics
2 answers:
wel3 years ago
7 0
Can't see the table but direct variation is: y = kx
So if the output is some constant multiple which could be positive, negative or fraction then yes it is direct variation. So just divide a couple y/x = k to see what you get.
mestny [16]3 years ago
4 0

Answer:

it is A  "No, this is not a direct variation."

Step-by-step explanation:

i jus took the test

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Equivalent Expressions for 6(4t+5)+2
Radda [10]

Answer:

48t + 60

Step-by-step explanation:

hope this helps!!

8 0
2 years ago
Here is a solid square-based pyramid.
Anna11 [10]

Answer:

Step-by-step explanation:

A. The front elevation of the pyramid in the direction of the arrow is herewith attached to this answer.

B. Base of the pyramid is a square of side 12 cm.

   The height of the pyramid is 8 cm.

   Slant height, XT, is 10 cm.

The total surface area of the pyramid can be determined by adding the surface areas that make up the shape.

Area of the triangular face = \frac{1}{2} × base × slant height

                                            =  \frac{1}{2} × 12 × 10

                                            = 60 cm^{2}

Area of the square base = length × length

                                         = 12 × 12

                                         = 144  cm^{2}

Total surface area of the pyramid = area of the base + 4 (area of the triangular face)

                              = 144 + 4(60)

                              = 144 + 240

                              = 384 cm^{2}

Therefore, total surface area of the pyramid is 384 cm^{2}.

5 0
3 years ago
I need help with answering this answer ASAP. Please help me
taurus [48]

Factors are (y - 7)(5y - 43)

Step-by-step explanation:

  • Step 1: Given, 5x² + 12x + 4 = (x + 2)(5x + 2)

Now, to factor 5(y - 9)² + 12(y - 9) + 4. Here, y - 9 can be equated to x if both equations are compared.

  • Step 2: To factorize, substitute y - 9 for x in the factors (x + 2)(5x + 2)

⇒ Factors = (y - 9 + 2)[5(y - 9) + 2]

                 = (y - 7)(5y - 45 + 2)

                 = (y - 7)(5y - 43)

7 0
2 years ago
If a polynomial function f(x) has roots -8,1, and -6i , what must also be a root of f(x) ?
kap26 [50]
Heya !

In mathematics, the complex conjugate root theorem states that if P is a polynomial in one variable with real coefficients, and a + bi is a root of P with a and b real numbers, then its complex conjugate a − bi is also a root of P.

Here , one complex root is given -6i hence , the other must be 6i.

Hope it helps you ! :)

6 0
3 years ago
A greeting card costs $4 before tax. A customer has a 15% discount. Then the 5% sales tax is added. How much will the customer p
mestny [16]
The customer will pay $3.57 for the greeting card

Explanation:
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4 - 0.6 = 3.4

Then the 5% sales tax is added:
0.05 x 3.4 = 0.17
3.4 + 0.17 = 3.57


4 0
2 years ago
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