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3 years ago

Equations of graph

Mathematics

1 answer:

Harlamova29_29 [7]3 years ago

3 0

Answer:

The Answer is iv. $y= \frac{2}{5} x+1$

Step-by-step explanation:

The 1 in the equation is where it intercepts the y axis. and the 2/5 is where it goes up 2 then over 5 and that is where the next point is.

Hope this helps!

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Which function is equivalent to the inverse of y=sec(x)

Mice21 [21]

Sec^-1 OR arcsec .........

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3 years ago

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You are baking cookies. The recipe calls for 3/4 cup of flour. You want to make 1/2 of a batch. How much flour do you need?

MissTica

3/4<span> / 2</span>
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= 3/8

You need 3/8 cups of flour

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3 years ago

What is the unit rate for $240 for 4 days

torisob [31]

The unit rate for $240 per 4 days is $60 per 1 day.
To get a unit rate you must simplify the rate down to $X per 1 day.
To get 4 days down to 1 day you must divide 4 by 4.
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4 years ago

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How would you do number 12 and 15?

Gnesinka [82]

Answer:

$x_1=x_2=-\dfrac{2}{3}$

Step-by-step explanation:

For the quadratic equation $ax^2+bx+c=0$ the discriminant is defined as

$D=b^2-4ac$

and the quadratic formula for the roots gives us two roots:

$x_1=\dfrac{-b-\sqrt{D}}{2a}$

and

$x_2=\dfrac{-b+\sqrt{D}}{2a}$

For the equation $9x^2 +12x+4=0$ use quadratic formula to find roots:

$D=12^2-4\cdot 9\cdot 4=144-144=0$

So,

$x_1=x_2=\dfrac{-12\pm \sqrt{0}}{2\cdot 9}=-\dfrac{12}{18}=-\dfrac{2}{3}$

7 0

4 years ago

An N-scale model railroad caboose is 3 inches long. N scale is 169 feet to 1 foot.

hammer [34]

9514 1404 393

Answer:

c/3 = 169/12
42 1/4 feet

Step-by-step explanation:

Since we want to know the actual number of feet, we can write the proportion with that in the numerator.

$\dfrac{\text{actual feet}}{\text{scale inches}}=\boxed{\dfrac{c}{3}=\dfrac{169}{12}}\\\\c=\dfrac{3\cdot169}{12}=42\frac{1}{4}\qquad\text{multiply by 3}$

The real caboose is 42 1/4 feet long.

4 0

3 years ago

Equations of graph ​

Equations of graph