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ELEN [110]
3 years ago
6

Please help as soon as possible I really need the help! Thank you

Mathematics
1 answer:
forsale [732]3 years ago
5 0

Answer:

x = 1, y = 4, or x = -2, y = 1

Step-by-step explanation:

y = -x^2 + 5

-x + y = 3

Use substitution to solve for the equation

-x + (-x^2 + 5) = 3

-x^2 - x + 5 = 3 (simplifying)

-x^2 -x  + 2 = 0 (simplifying)

(-x + 1)(x+2) = 0 (factoring)

-x + 1 = 0 or x + 2 = 0

<em>x = 1, or x = -2 </em>

-x + y = 3

-(1) + y = 3, or -(-2) + y = 3

<em>y = 4, or y =  1</em>

just choose any one...

x = 1, y = 4

or x = -2, y = 1

(they both work)

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h(x) =  \frac{x+7}{3x+2} &#10;\\ \\ h(5z) =  \frac{5z+7}{3(5z)+2} = \frac{5z+7}{15z+2}
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3 years ago
Omar is 14 years old and 6 feet tall. If he has grown .5 feet each year for the past 3 years, how tall was he when he was 12 yea
Verizon [17]
He was 4 foot. With this I just took .5 and multiplyed it by 4, then subtracted it from 6. Hope this can help! Feel free to message me if you have anymore questions!
7 0
3 years ago
Read 2 more answers
2. After the relay race, Larry, Curly, and Moe went to the
jarptica [38.1K]

Using proportions, it is found that each of the 6 people got $0.5.

<h3>Proportions:</h3>
  • This question is solved by <em>proportions</em>, using a rule of three.
  • $3.00 is shared between 6 people, which are Larry, Curly, Moe, Alvin, Simon and Theodore. How much did each people(1 person) get?

The <em>rule of three</em> is:

$3.00 - 6 people

$x - 1 person

Applying cross multiplication:

6x = 3

x = \frac{3}{6}

x = 0.5

Each of the 6 people got $0.5.

To learn more about proportions, you can take a look at brainly.com/question/24372153

7 0
2 years ago
<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B2x-24%3D0" id="TexFormula1" title="x^{2} +2x-24=0" alt="x^{2} +2x-24=0" align
denpristay [2]
I used the quadratic formula and got x= 4, -6
8 0
3 years ago
How many milliliters of olive oil (D=0.92 g/mL) have the same mass as 1.80 L of gasoline (D= .74 g/mL)
True [87]

Answer:

1448 mL

Step-by-step explanation:

The mass is the same.

Formula

m = d*V

Givens

<em><u>Olive Oil</u></em>

d = 0.92 grams / mL

V = ??

<em><u>Gasoline</u></em>

d = 0.74 grams / mL

V = 1.8 L = 1.8 L * (1000 ml / L)

V = 1800 mL

Solution

0.74 * 1800 mL = 0.92 * x                      Divide both sides by 0.92

0.74/0.92 * 1800 mL = 0.92 *x / 0.92   Combine the left

0.8043  * 1800 mL = x

x = 1448 mL

The volume of Olive Oil needed is 1448 mL

   


5 0
3 years ago
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