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Zinaida [17]
3 years ago
15

Find a value of 21 + 4(3^2 -5)

Mathematics
1 answer:
Svetllana [295]3 years ago
7 0

the following answer to this question is 37.

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Help please anyone:)
Anna007 [38]
The answer is -0.75.
7 0
3 years ago
Read 2 more answers
I’ll give brainly <br> Solve for x.<br> 27<br> 36<br> x<br> 28<br> X= <br> ?
alexandr402 [8]

Answer:

i dont understan the method you gave me can youbplease ask again showing a different method

6 0
3 years ago
PLEASE HELP. WILL GIVE BRAINLIEST
KengaRu [80]

Answer:

x-intercepts = 1,2, and 4, y-intercept = -8

Step-by-step explanation:

x^3 - 7x^2 - 14x - 8 in factored form is equal to (x-1)(x-2)(x-4).

Solving for x-intercepts:

  • We are actually able to solve for all x-intercepts without the given factor. But since we are given one of the factors, our job becomes much easier.
  • Using synthetic division, or long division, we factor out the x-intercept 4. Which leaves us with the polynomial x^2 - 3x + 2.
  • From here we can separate the polynomial into two binomials.
  • x^2 - 3x + 2 = (x-1)(x-2). Giving us all 3 x-intercepts.
  • Using Descartes' rules we can identify before even starting the problem how many real x-intercepts there are (Not needed for this problem).

Solving for y-intercept:

  • The y-intercept is always the coefficient that does not have any assigned x-variables.
  • The coefficient is -8, thus the y-intercept.
  • If unsure of the y-intercept, you can always plug in x = 0. Solving for the y-intercept will give you the value of f(0).
  • If there is no coefficient, the y-intercept is equal to zero.
4 0
3 years ago
Twenty boxes of paper weights 460 pounds. What is the ratio of boxes to pounds?​
Marta_Voda [28]

Answer:

1:23

Step-by-step explanation:

20 / 460

= 1 / 23

= 1:23

6 0
2 years ago
Explain how to write 3*3/8 as the product of a whole number and a unit fraction
Lady_Fox [76]
9/8 because you multiply 3 × 3 and leave the denominator the same
4 0
3 years ago
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