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3 years ago

7

After eating 25 percent of the pretzels, Sonya had 42 left how many pretzels did Sonya have originally??? How do I get the Answe

r

1 answer:

madreJ [45]3 years ago

7 0

42 + 25% = 52 ( 25% is 1/4)

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Help!! Find missing value for each quadratic function

Svetllana [295]

I'll do the first one to get you started. The answer is -3

=================================================

Explanation:

When x = -1, y = 0 as shown in the first column. The second column says that (x,y) = (0,1) and the third column says (x,y) = (1,0)

We'll use these three points to determine the quadratic function that goes through them all.

The general template we'll use is y = ax^2 + bx + c

------------

Plug in (x,y) = (0,1). Simplify

y = ax^2 + bx + c

1 = a*0^2 + b*0 + c

1 = 0a + 0b + c

1 = c

c = 1

------------

Plug in (x,y) = (-1,0) and c = 1

y = ax^2 + bx + c

0 = a*(-1)^2 + b(-1) + 1

0 = 1a - 1b + 1

a-b+1 = 0

a-b = -1

a = b-1

------------

Plug in (x,y) = (1,0), c = 1, and a = b-1

y = ax^2 + bx + c

0 = a(1)^2 + b(1) + 1 ... replace x with 1, y with 0, c with 1

0 = a + b + 1

0 = b-1 + b + 1 ... replace 'a' with b-1

0 = 2b

2b = 0

b = 0/2

b = 0

------------

If b = 0, then 'a' is...

a = b-1

a = 0-1

a = -1

------------

In summary so far, we found: a = -1, b = 0, c = 1

Therefore, y = ax^2 + bx + c turns into y = -1x^2 + 0x + 1 which simplifies to y = -x^2 + 1

------------

The last thing to do is plug x = 2 into this equation and simplify

y = -x^2 + 1

y = -2^2 + 1

y = -4 + 1

y = -3

3 0

3 years ago

Y’all i need major help with this iready math

zzz [600]

Answer:

3.14

3.14

3.14

3.14

3.14

I just now realized that these are all 3.14 and that I've done this before, I hope this helps you :)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Create a polynomial function in standard form with a leading coefficient of 2 and zeros at 0 1 and 3 brainly

TEA [102]

Answer:

$P(x) = 2x^3 - 8x^2 + 6x$

Step-by-step explanation:

Given

$p =2$ -- Leading coefficient

$Zeros: 0, 1\ and\ 3$

Required

Determine the polynomial

Represent the zeros with a, b and c.

Such that

$a = 0$

$b = 1$

$c = 3$

The polynomial is:

$P(x) = p * (x - a) * (x - b) * (x - c)$

$P(x) = 2 * (x - 0) * (x - 1) * (x - 3)$

$P(x) = 2x * (x - 1) * (x - 3)$

Open bracket

$P(x) = (2x^2 - 2x) * (x - 3)$

$P(x) = 2x^3 - 6x^2 - 2x^2 + 6x$

$P(x) = 2x^3 - 8x^2 + 6x$

5 0

3 years ago

19/76 in lowest form

Triss [41]

The answer is 4. 76 divided by 19 is 4. 19 is the only number that can go into 19. hope this helps :)

8 0

3 years ago

Read 2 more answers

Determine the range of the function g of x is equal to negative square root of the quantity x squared plus 16 end quantity

vova2212 [387]

Option A is correct. The range of the function $g(x)=-\sqrt{x^2+16}$ given above expressed as an interval notation is (–∞, ∞)

Given the function $g(x)=-\sqrt{x^2+16}$

We are to find the range of the function.

First, we can see that the value of x² inside the square root will always be a positive value no matter the domain values of x.

Since the input value exists on all real numbers, hence<em> the output values will also exist on all real numbers since the </em><em>range</em><em> is dependent on the values of the </em><em>domain.</em>

Hence the range of the function given above expressed as an interval notation is (–∞, ∞)

Learn more here: brainly.com/question/16724504

5 0

2 years ago