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3 years ago

Which group of 3 cards would allow Carlos to win with 21 points?

Mathematics

1 answer:

shepuryov [24]3 years ago

8 0

A and C equal 21
☺☺☺☺

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1. Add or Subtract. Show your work

Sav [38]

QUESTION 1a.

We want to add

$( - 2 {x}^{2} - 4x + 13) + (12 {x}^{2} + 2x - 25)$

We group similar terms to get

$- 2 {x}^{2} + 12 {x}^{2}- 4x + 2x - 25 + 13$

Simplify:

$- 10{x}^{2} - 2x -12$

QUESTION 1b.

The given function is:

$(7x^2+4x-26)-(-7x^2-3x+15)$

Expand the parenthesis to obtain,

$7x^2+4x-26 + 7x^2 + 3x - 15$

Group similar terms,

$7x^2+7 {x}^{2} + 4x + 3x-26 - 15$

Simplify:

$14{x}^{2} + 7x-41$

QUESTION 2

The given function is

$f(n)=n^2-6n-16$

The zeros of this function is given by;

$n^2-6n-16 = 0$

Split the middle term.

$n^2-8n + 2n-16 = 0$

Factor;

$n(n - 8) + 2(n - 8) = 0$

$(n - 8)(n + 2) = 0$

$n - 8 = 0 \: or \: n + 2 = 0$

$n = 8 \: or \: n = - 2$

4 0

2 years ago

What is the value of the expression 25 ÷ 5 + (6 x 2) − 4? 7 9 12 13

andrew11 [14]

Answer: =12x+1

Step-by-step explanation: Hope this help :D

Let's simplify step-by-step.

25/5+6x(2)−4

=5+12x+−4

Combine Like Terms:

=5+12x+−4

=(12x)+(5+−4)

=12x+1

4 0

2 years ago

PLEase Help ME In This Work!!

tigry1 [53]

Answer:

y=2x

Step-by-step explanation:

it is a proportional relationship and the slope is 2

8 0

2 years ago

Johney bought 3 pounds of hamburger. He wants to divide it evenly into 5 hamburger patties. How much pound(s) is each hamburger

Helga [31]

0.6 pounds because you would divide 3 by 5 and get 0.6

5 0

2 years ago

Read 2 more answers

Will mark brainliest geometry proof ............................

photoshop1234 [79]

The order is
CPCTC
SAS
SAS

7 0

2 years ago