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3 years ago

Which equation has the graph shown?

Mathematics

1 answer:

kykrilka [37]3 years ago

7 0

Answer:

2nd answer choice

Step-by-step explanation:

Graph is increasing by 1

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Divide £80 in the ratio 1:4:5

yarga [219]

Answer:

8, 32, and 40

Step-by-step explanation:

1+4+5=10

80/10=8

8*1=8

8*4=32

8*5=40

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4 years ago

Can somebody please help me with this:)

max2010maxim [7]

Answer: 4=-2x -1 and y=-1 2x

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3 years ago

Identify the y-intercept of the following linear equation written in standard form.

Marianna [84]

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2 years ago

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Factor out the coefficient of the variable 2.2x+4.4

OleMash [197]

The coefficients are the numbers in front of x or the 4.4 in the equation. So you can just divide the numbers.

$2.2x + 4.4$ Divide to 2.2
$x + 2$

7 0

3 years ago

After completing the square, what are the solutions to the quadratic equation

Fiesta28 [93]

Answer:

$x_1= \frac{\sqrt{{29}}}{2} +\frac{7}{2}\\\\x_2= -\frac{\sqrt{{29}}}{2} +\frac{7}{2}$

Step-by-step explanation:

1. Subtract 9 from both sides of the equation:

$x^2 - 7x+9-9 = 4-9\\\\x^2 - 7x= -5$

2. Notice that the coefficient of "x" is 7. Then:

$(\frac{7}{2})^2=\frac{49}{4}$

3. Add $\frac{49}{4}$ to both sides of the equation:

$x^2 - 7x+\frac{49}{4}= \frac{49}{4}-5\\\\x^2 - 7x+\frac{49}{4}= \frac{29}{4}$

4. Completing the square, you get:

$(x -\frac{7}{2})^2= \frac{29}{4}$

5. To find the solutions, you must square-root both sides of the equation, simplify, and solve for "x". Then, you get:

$\sqrt{(x -\frac{7}{2})^2}= \±\sqrt{\frac{29}{4}}\\\\x -\frac{7}{2}=\±\frac{\sqrt{{29}}}{2} \\\\x= \±\frac{\sqrt{{29}}}{2} +\frac{7}{2}\\\\\\x_1= \frac{\sqrt{{29}}}{2} +\frac{7}{2}\\\\x_2= -\frac{\sqrt{{29}}}{2} +\frac{7}{2}$

4 0

3 years ago

Read 2 more answers