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cricket20 [7]
3 years ago
7

What is the value of k

Mathematics
1 answer:
Maslowich3 years ago
8 0

Answer:

k=10

Step-by-step explanation:

The sum of the two equations given is 115. Set both equal to 115 and solve.

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gayaneshka [121]

Answer:

0

Step-by-step explanation:

just put in 5 for x

7 0
3 years ago
3/2+t=1/2 how to slove
Nataly [62]
First, let's isolate t! Make sure to change your signs when you change from one side of the equation to the other. 

3/2 + t = 1/2
          t = 1/2 - 3/2

Now, we can solve for t!
          
          t = 1/2 - 3/2
          t = -2/2
          t = -1

Hope this helps!
Message me if you have any questions :)
8 0
3 years ago
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A shirt purchased for $20. The store owner will sell it for a 40% mark up. What will the new price be?
Kazeer [188]
40%=0.4

0.4(20)
8(markup)

Shirt price=$20+ $8


New price=$28
3 0
2 years ago
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HELP ME MATH ILL GIVE YOU BRAINLIEST
s344n2d4d5 [400]

Answer:

  • zeros: x = -3, -1, +2.
  • end behavior: as x approaches -∞, f(x) approaches -∞.

Step-by-step explanation:

I like to use a graphing calculator for finding the zeros of higher order polynomials. The attachment shows them to be at x = -3, -1, +2.

__

The zeros can also be found by trial and error, trying the choices offered by the rational root theorem: ±1, ±2, ±3, ±6. It is easiest to try ±1. Doing so shows that -1 is a root, and the residual quadratic is ...

  x² +x -6

which factors as (x -2)(x +3), so telling you the remaining roots are -3 and +2.

___

For any odd-degree polynomial with a positive leading coefficient, the sign of the function will match the sign of x when the magnitude of x gets large. Thus as x approaches negative infinity, so does f(x).

8 0
3 years ago
Find the volume of a pyramid with a square base, where the perimeter of the base is
grigory [225]

Answer:

90.3125 cm³

Step-by-step explanation:

Since the perimeter of the bottom square is 17, you can divide by four to find out what the lenght of each side is.

17/4=4.25 cm

We know the height of pyramid is 15 cm

The formula for the volume of a square pyramid is

V=a²(h/3)

V=a2(h/3)=4.252·15/3=90.3125 cm³

8 0
3 years ago
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