All categories

3 years ago

I need help with my math problems

Mathematics

1 answer:

nekit [7.7K]3 years ago

3 0

Answer:

Step-by-step explanation:

X Y X Y

0 3 0 5

1 7 1 8

2 11 2 11

3 15 3 14

4 19 4 17

You might be interested in

When the sum of 5 and three times a positive number is subtracted from the square of the number, 0 results. Find the number.

Juliette [100K]

$x-the\ number\\\\x^2-(5+3x)=0\\\\x^2-5-3x=0\\\\x^2-3x-5=0$

$Use\ the\ quadratic\ formula:\\a^2x+bx+c=0\\\\\Delta=b^2-4ac\\\\if\ \Delta > 0\ then\ x_1=\dfrac{-b-\sqrt\Delta}{2a}\ and\ x_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\if\ \Delta=0\ then\ x_0=\dfrac{-b}{2a}\\\\if\ \Delta < 0\ then\ no\ solution$

$x^2-3x-5=0\\\\a=1;\ b=-3;\ c=-5\\\\\Delta=(-3)^2-4\cdot1\cdot(-5)+3+20=29 \ \textgreater \ 0\\\\\sqrt\Delta=\sqrt{29}\\\\x_1=\dfrac{3-\sqrt{29}}{2\cdot1}=\dfrac{3-\sqrt{29}}{2} \ \textless \ 0\\\\x_2=\dfrac{3+\sqrt{29}}{2\cdot1}=\dfrac{3+\sqrt{29}}{2} \ \textgreater \ 0$

$Answer:\ \boxed{x=\dfrac{3+\sqrt{29}}{2}}$

6 0

3 years ago

(9,-1); m=4/3 write an equation in point slope form for the line through the given point with the given slope

madreJ [45]

For this problem you are going to need to know the point-slope equation which is:
y-y₁=m(x-x₁)

Now, m=slope and the x and y values are given to us already, so now we just plug our variables into the formula.

It should look like this: $y+1= \frac{4}{3}(x-9)$
Since all they are asking for is for you to put it into a formula this will be your answer.

8 0

3 years ago

Which ordered pair would form a proportional relationship with the point graphed below?

nevsk [136]

Answer:

(90,60)

Step-by-step explanation:

if you look closely through the linear graph, the line crosses through (90,60) and not the other given pairs.

proportional relationships are plots that also match in the same graphing format (keep in mind when you have trouble next time)

5 0

3 years ago

Read 2 more answers

If y varies directly as x, and y is 18 when x is 5, which expression can be used to find the value of y when x is 11?

Rzqust [24]

The answer would be choice B y=18/5(11)

5 0

3 years ago

Fractions and mixed numbers I need help!!!

zimovet [89]

Answer:

The answer would be D, or $3^{3} *3^{2}* 5$

Step-by-step explanation:

A is 540

B is 30

C is 720

D is 360

7 0

3 years ago