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pychu [463]
3 years ago
7

The temperature at 9 a.m. is 2 degrees. The temperature rises 3 more degrees by noon. Which expression describes the temperature

at noon?\
Mathematics
1 answer:
Archy [21]3 years ago
5 0

Answer:5

Step-by-step explanation:

2+3

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Inga is solving 2x2 + 12x – 3 = 0. Which steps could she use to solve the quadratic equation? Select three options. 2(x2 + 6x +
Ede4ka [16]

The required steps are

<em>2x^2 + 12x – 3 = 0. </em>

<em>2x2 + 12x  = 3</em>

<em>2(x^2+6x) = 3</em>

<em>2[(x+3)^2 - 9] = 3</em>

<h3>Completing the square method</h3>

Quadratic equations are equations that has a leading degree of 2

Given the equation below;

2x^2 + 12x – 3 = 0.

Add 3 to both sides

2x2 + 12x  = 3

Factor out 2

2(x^2+6x) = 3

Complete the square

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

2[(x+3)^2 - 9] = 3

This gives the required steps to solve the equation

Learn more on completing the square here: brainly.com/question/13981588

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5 0
1 year ago
Hallar la ecuación de la hipérbola que tiene focos en (-5,-11) y (-5,3) y vertice (-5,-8) y (-5,0) ayuda porfa
horsena [70]

Answer:

SPANISH TALK THE ENGLSH

Step-by-step explanation:OKKK

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6 0
2 years ago
The cost for a certain music plan is 9.99 per year plus $.025 per song you download if you paid $113.74 one year find the number
garri49 [273]
Y=amount of money paid.  (in $)
x=number of songs download.

We have this function:
y=0.25x+9.99

Then:
if y=113.74

113.74=0.25x+9.99
0.25x=113.74-9.99
0.25x=103.75
x=103.75 / 0.25
x=415

Answer: the number of songs downloaded would be 415.
6 0
3 years ago
Read 2 more answers
The square of a positive number increased by twice the number equals three. Find the number
koban [17]

Answer:

1

Step-by-step explanation:

Let the number be x

x² + 2x = 3

x² + 2x - 3 = 0

Product  = -3

Sum =2

Factors = 3 * (-1)

x² + 3x - x - 3 = 0

x*(x+3) - (x + 3) = 0

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

Ignore x + 3 because the number is a positive number

x - 1 = 0

x = 1

The number is 1

8 0
3 years ago
ANSWER ASAP PLEASE FOR BRAINLIEST
Lelechka [254]

Answer:

<h2><em><u>11.2 - B to C</u></em></h2><h2><em><u>12 - B to A</u></em></h2><h2><em><u>8.8 - A to C</u></em></h2>

You have to multiply all the sides by 4.

B to C = 2.8*4

2.8 * 4 = 11.2

B to A = 3*4

3*4 = 12

A to C = 2.2*4

2.2*4 = 8.8

Hope this helped!

3 0
3 years ago
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