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3 years ago

Mathhhhhhhhhhhhhhhhhh

Mathematics

2 answers:

Brut [27]3 years ago

7 0

Answer: Question 1 is 3/4

Question 2 is the line intersecting at -9 in the y axis and the slope is 4 so the other point would go at (1,-5)

Step-by-step explanation:

finlep [7]3 years ago

6 0

I can’t help u on this site

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PLS HELP ME WHO EVER GETS ANSWER I WILL GIVE BRAINLIEST AND ALL MY POINTS SO PLEASE ANSWER THIS PLSSS ITS EASY

madreJ [45]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

The average of the first 3 weights was 14 pounds. The average of the next 7 was 4 pounds. What was the overall average of the we

miskamm [114]

Answer:

$Average = 10$

Step-by-step explanation:

Given

$First\ Three = 14$ --- Average

$Next\ Seven= 4$ --- Average

Required

Determine the overall average

Represent the sum of the first three with x.

So:

$\frac{x}{3} = 14$

Solve for x

$x = 14 * 3$

$x = 42$

Represent the sum of the next seven with y.

So:

$\frac{y}{7} = 4$

Solve for y

$y = 4 * 7$

$y = 28$

The overall average is calculated as thus:

$Average = \frac{x + y}{7}$

$Average = \frac{42 + 28}{7}$

$Average = \frac{70}{7}$

$Average = 10$

7 0

3 years ago

Use the quadratic formula to solve the equation -3x2-x-3=0

Novosadov [1.4K]

Answer:

$x=\frac{1+\sqrt{35}i}{-6}\,\, and\,\, x=\frac{1-\sqrt{35}i}{-6}\\$

Step-by-step explanation:

the quadratic formula is:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

a= -2, b = -1 and c =-3

Putting values in the formula

$x=\frac{-(-1)\pm\sqrt{(-1)^2-4(-3)(-3)}}{2(-3)}\\x=\frac{1\pm\sqrt{-35}}{-6}\\x=\frac{1+\sqrt{-35}}{-6}\,\, and\,\, x=\frac{1-\sqrt{-35}}{-6}\\We\,\, know \,\,that \,\,\sqrt{-1} = i \\x=\frac{1+\sqrt{35}i}{-6}\,\, and\,\, x=\frac{1-\sqrt{35}i}{-6}\\$