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3 years ago

HELP what is the value of “ c”

Mathematics

1 answer:

Alex3 years ago

6 0

Answer:

Step-by-step explanation:

When you match the form

... ax² + bx + c = 0

to the equation

... 3x² + 5x + 7 = 0

it is reasonable to conclude that ...

... a = 3, b = 5, c = 7.

_____

The question presumes you are familiar with the form

... ax² +bx +c = 0

which is often used as the representation of a general quadratic equation. This lets us use a, b, and c instead of specific numbers, to talk about ways of factoring, graphing, or solving equations like this.

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What is the length of AB?

IceJOKER [234]

Answer:

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Step-by-step explanation:

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4 0

3 years ago

wolverine [178]

Answer:

Ivy is 6 years old and Rose is 12 years old.

Step-by-step explanation:

To solve this problem, two variables are necessary since we have two unknown variables: Ivy's age and Rose's age.

Ivy's age will be $x$

and Rose's age will be $y$

"Ivy is half as old as her sister":

$x=\frac{y}{2}$

this will be our fist equation.

"In six years, Ivy will be two-thirds as old as Rose"

in six years Ivy will have $x+6$ years, and Rose will have $y +6$ years, so for this sentence we have the equation:

$x+6=\frac{2}{3}(y+6)$

this will be our second equation.

Substituting the value of x from the first equation into the second, and solving for y(Rose):

$\frac{y}{2}+6=\frac{2}{3} (y+6)\\\frac{y+12}{2} =\frac{2}{3} (y+6)\\y+12=\frac{4}{3} (y+6)\\3(y+12)=4(y+6)\\3y+36=4y+24\\36-24=4y-3y\\12=y$

Rose is 12 years old.

and Ivy (using the fist equation):

$x=\frac{12}{2}=6$

Ivy is 6 years old.

6 0

3 years ago

evelyn drinks 8 glasses of water a day , which is 56 glasses of water a week.how many glasses of water does she drink in a year?

MissTica

If you would like to know how many glasses of water does Evelyn drink in a year (1 year = 52 weeks), you can calculate this using the following steps:

8 glasses of water per day
56 glasses of water per week
x glasses of water per year = ?

x = 56 * 52 = 2912 glasses of water per year

Result: Evelyn drinks 2912 glasses of water per year.

4 0

3 years ago

Read 2 more answers

Find the equation of lines

bearhunter [10]

Answer:

y = x + 6.

Step-by-step explanation:

y = mx + c where m = the slope of the line and c is the y-intercept.

So here m = 4/4 = 1 and c = 6, so it's:

y = 1x + 6.

3 0