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maw [93]
2 years ago
10

Pls pls pls helppp ------------------

Mathematics
2 answers:
aliina [53]2 years ago
7 0

Answer:

\fbox {x-intercepts : (1, 0) and (-3, 0)}

\fbox {Roots : x = 1, x = -3}

Step-by-step explanation:

<u>Given</u> :

  • y = 4x² + 8x - 12

4 cancels throughout.

  • <u>y = x² + 2x - 4</u>

<u>Solving by quadratic formula</u> :

  • x =  -8 ± √(8)² - 4(4)(-12) / 8
  • x = -8 ± √64 + 192 / 8
  • x = -8 ± √256 / 8
  • x = -8 ± 16 / 8
  • x = -1 ± 2
  • x = 1 and x = -3

∴ Hence, the x-intercepts are (1, 0) and (-3, 0). The roots of the equation are 1 and -3.

horrorfan [7]2 years ago
7 0

Answer:

y = 4x^2 + 8x - 12

4(x^2 + 2x - 3) = 0

4(x - 1)(x + 3) = 0

x = 1, -3

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seraphim [82]

Answer:

2,4,8,16,32,64

Step-by-step explanation:

There are a couple of ways one could approach this. The goal is to find out the factor by which the numbers are increasing. Looking at going from 8 -> 16, we have either added 8, or doubled 8. So the factor is either +8 or x2. Going from 16 -> 32, adding 8 no longer holds true, while multiplying by 2 (doubling 16) does. To confirm what we have found, we can further check our math by using the final two numbers, 32 -> 64, to confirm that the sequence pattern is to double the current number to achieve the next number.

Working backwards, we can half each number to find out the first two numbers in the sequence. 64/2 = 32, 32/2 = 16, 16/2 = 8, 8/2 = 4, 4/2 = 2

8 0
3 years ago
Add. 7/4+9/-5 wrote your answer as a fraction in simplest form
IgorLugansk [536]

Answer:

7/4 + 9/-5 =

Since the denominator of the second fraction is negative the sign will change from negative to positive

We will get

7/4 - 9/5

First find the LCM

LCM of 4 and 5 is 20

7/4 - 9/5 = 5(7) - 4(9)/ 20

Simplify

We get

35 - 36/20

= -1/20

Hope this helps

5 0
2 years ago
Read 2 more answers
5 1/4* (-4 2/3)<br> Solve
leonid [27]

Answer:

-10/3, -3  1/3, or -3.33333333...........

Step-by-step explanation:

First, just multiply the whole numbers by the fractions and then multiply those tow numbers by each other. Hope this helped!!

6 0
2 years ago
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(3/8)(6/8)=p/a

3/6=p/a

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for every 1 pear there are 2 apples

if there are 4 pears there are 8 apples

there are 8 apples

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15 pieces of fruit and 3 are oranges

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4/5/2015 | Arthur D.

3 0
3 years ago
I have 4 congruent sides, and opposite sides are parallel what am I?
Elodia [21]
The answer is a square
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