I really need help its pre calc pls help me!!

Answer:

When a line is parallel to another line, they have the same slope. So far the equation would be, y=4x+b. To find the value of b, substitute the given point into the equation.

8=4(-1)+b

8=-4+b

b=12

So, the equation of the line is y=4x+12.

:)

y=4x-2

Equation of line in point slope form

[tex]\ \ \sf\longmapsto y-y_1=m(x-x_1)[/tex]

[tex]\ \ \sf\longmapsto y-8=4(x+1)[/tex]

[tex]\ \ \sf\longmapsto y-8=4x+4[/tex]

[tex]\ \ \sf\longmapsto 4x-y+12=0[/tex]

Answer:

x>-50

Step-by-step explanation:

x(-1)/-5>10(-1)

x/5>-10

×5 both sides

5x/5>5(-10)

x>-50

Answer:

A

Step-by-step explanation:

Answer:no not in amillion years

Step-by-step explanation:hehe nahhhhhhhhhh lll

Answer:

y=x/4

Step-by-step explanation:

slope =y2-y1/x2-x1

=1-0/4-0=1/4

Answer: slope intecept form: y = 1/4x

Step-by-step explanation: first we need to find the slope:

Since we have the coordinates (0,0) and (4,1), we can find the slope, which we find 1/4. We can double check this by seeing if the next point is found +4 to the right and up 1.

We have y = 1/4x + b right now, so we need to find the y intercept, in which case is zero because it goes through the origin.

So your final answer is y = 1/4x + 0, or y = 1/4x for short.

Hope this helps!

Answer:

Than it's a good measure must be a good thing

Answer:

25 minutes

Step-by-step explanation:

1950/78=25

Answer:

25 minutes

Step-by-step explanation:

Just divide 1,950 by 78.

Answer:

the ecuation is 4+2x=16, and x is the number of years the tree needs to grow to a height of 16 ft

Answer:y=2/5x+5

Step-by-step explanation:

Answer:

23.32

Step-by-step explanation:

264.7-241.38=23.32

Answer:

23.32

Step-by-step explanation:

264.7-241.38=23.32

Hello studentUnion!

[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]

Solve the equation-

[tex] \frac{5}{x - 3} - \frac{4}{x + 4} = \frac{1}{x} \\ [/tex]

[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]

[tex] \frac{5}{x - 3} - \frac{4}{x + 4} = \frac{1}{x} \\ [/tex]

Let's multiply both the sides of the equation by x (x - 3) & (x + 4) which is the LCM of (x - 3), (x + 4) & x. We can't solve it directly without taking the LCM first as the denominators are not equal to each other. Then do cross multiplication. After all these steps, you'll get an equation as..

[tex]x\left(x+4\right)\times 5-x\left(x-3\right)\times 4=\left(x-3\right)\left(x+4\right) \\ [/tex]

Now, use the distributive property & simplify it.

[tex]x\left(x+4\right)\times 5-x\left(x-3\right)\times 4=\left(x-3\right)\left(x+4\right) \\ \left(x^{2}+4x\right)\times 5-x\left(x-3\right)\times 4=\left(x-3\right)\left(x+4\right) \\ 5x^{2}+20x-x\left(x-3\right)\times 4=\left(x-3\right)\left(x+4\right) \\ 5x^{2}+20x-\left(x^{2}-3x\right)\times 4=\left(x-3\right)\left(x+4\right) \\ 5x^{2}+20x-\left(4x^{2}-12x\right)=\left(x-3\right)\left(x+4\right) \\ 5x^{2}+20x-4x^{2}+12x=\left(x-3\right)\left(x+4\right) \\ x^{2}+20x+12x=\left(x-3\right)\left(x+4\right) \\ x^{2}+32x=\left(x-3\right)\left(x+4\right) \\ x^{2}+32x=x^{2}+x-12 \\ x^{2}+32x-x^{2}=x-12 \\ 32x=x-12 \\ 32x-x=-12 \\ 31x=-12 \\ \boxed{ \boxed{ \bf \: x=-\frac{12}{31} }}[/tex]

__________________

Hope it'll help you!

ℓu¢αzz ッ

Answer:

[tex]\frac{5}{x-3} -\frac{4}{x+4} =\frac{1}{x}[/tex]

[tex]\frac{5(x+4)-4(x-3)}{(x-3)(x+4)} =\frac{1}{x} \\[/tex]

[tex]\frac{5x+20-4x+12}{(x-3)(x+4)} =\frac{1}{x}[/tex]

[tex]\frac{x+32}{(x-3)(x+4)} =\frac{1}{x}[/tex]

Use Cross multiplication

[tex]x(x+32)=(x-3)(x+4)[/tex]

[tex]x^{2} +32x = x^{2} +4x-3x-12[/tex]

[tex]x^{2} +32x=x^{2} +x-12[/tex]

[tex]x^{2} +32x-x^{2} -x=-12[/tex]

[tex]31x = -12[/tex]

[tex]\frac{31x}{31} =\frac{-12}{31} \\x = \frac{-12}{31}[/tex]

Hope this helps you.

Let me know if you have any other questions :-)

Answer:

a = 51 , b = - 7

Step-by-step explanation:

Expand and simplify left side , then compare like terms on both sides.

4(9x + 11) + 5(3x + b) ← distribute parenthesis

= 36x + 44 + 15x + 5b ← collect like terms

= 51x + 5b + 44

Compare terms with right side ax + 9

Compare x - terms

51x and ax

For these terms to be equal then

a = 51

Compare constant terms

5b + 44 and 9

For these terms to be equal , then

5b + 44 = 9 ( subtract 44 from both sides )

5b = - 35 ( divide both sides by 5 )

b = - 7

Answer:

The population of a town changed by -17.4% over 4 years. What was the average change per year? - 25400422.

Step-by-step explanation:

Answer:

y= 1/2x-2

Step-by-step explanation:

y+1= 1/2(x-6)

y+1= 1/2x -3

y= 1/2x-2

Answer:

45o

Step-by-step explanation:

Angles 1 and 2 form a linear pair and are supplementary. So to find m∠2, subtract m∠1 from 180o. m∠2 = 180o - 135o = 45o.

Answer: 90

Step-by-step explanation:

You can write "the measure of angle 1" as m ∠1. ∠1 and ∠2 are complementary, and m ∠2 = 32. Find m ∠ 1. m ∠1 + 32 = 90 Substitute 32 for m ∠2.

Answer:

1 . x < − 4 or x > 5

2 . 1 − 2 √ 3 < x < 1 + 2 √ 3

3 .x < − 7 or x > − 2

4. r < 2 or r > 8

Step-by-step explanation:

Answer:

$10

Step-by-step explanation:

100 x 0.10 = 10

Answer:

10 dollars

Step-by-step explanation:

Answer:

p=4x

Step-by-step explanation:

The line is straight

Answer:

i like ur pp

Step-by-step explanation:

Answer: y-int = 2

Step-by-step explanation:

set x=0

so 18(0) + 5y = 10

solve for y by dividing both sides by 5

5y/5 = 10/5

y=2

Answer:

Step-by-step explanation:

1. 8z = 112 _z = (112/8);         z=14

2. d/14 = 7 _  d = 7*(14);       d = 98

3. f/28 = 24 ___f = 28(24);  f= 672

4. 3a = 57 ____  a = 57/3;   a = 19

Answer:

B. 90; 100 is a reasonable estimate

Step-by-step explanation:

15 + 14 = 29 (combined number of stamps Julissa and Ethan have)

Pawel has three times 29 stamps

29 ×3 = 87 (number of stamps Pawel has)

90 is the closest estimate to the amount of stamps Pawel has.

Therfore, 90 is the correct estimate and 100 is a reasonable estimate.

We will see that the path should be 4 feet wide.

For a rectangle of length L and width W, the area is:

A = L*W

In this case, we know that the dimensions of the garden are:

Now if we add a path of width x that surrounds it, the new length and width will be:

And the area of this rectangle must be 4524 ft^2, then we have:

(50 ft + 2x)*(70 ft + 2x) = 4524 ft^2

Now we can solve this for x.

Ignoring the units, so the math is easier to read, we have:

(50 + 2x)*(70  + 2x) = 4524

50*70 + 50*2x + 2x*70 + 2x*2x = 4524

3500 + 240x + 4x^2 = 4524

4x^2 + 240x + 3500 - 4524 = 0

4x^2 + 240x - 1024 = 0

Now to simplify the quadratic equation, we can divide both sides by 4 to get:

x^2 + 60x  + 256 = 0

The solutions of the quadratic equation are given by Bhaskara's formula:

[tex]x = \frac{-60 \pm \sqrt{60^2 - 4*1*(-256)} }{2*1} \\\\x = \frac{-60 \pm 68 }{2}[/tex]

We only care for the positive solution (the negative one does not make physical sense).

x = (-60 + 68)/2 = 4

So the width of the path must be 4 ft.

If you want to learn more about quadratic equations, you can read:

https://brainly.com/question/1214333

Answer:

50% of 3000

Step-by-step explanation:

49% is very close to 50% (half).  3,025 pounds is very close to 3,000 pounds.

Half of 3,000 pounds is 1,500 pounds.

Answer:the correct answer is (c)-Find 50% of 3,000.

Step-by-step explanation:i got right in egde 2023

Answer:

C 10^-3

Step-by-step explanation:

because the other options are the same as 10^ -3/5

Answer:

It would be  10^-3

Step-by-step explanation:

Answer:

whats the question

Step-by-step explanation:

Answer:

African Americans contributed to the war by

combat service elements alongside their white counterparts and were involved in all major combat operations, including the advance of United Nations Forces to the Chinese border. Two African-American Army sergeants, Cornelius H. Charlton and William Thompson, earned the Medal of Honor.

African americans have contributed to the war by. BY. BY. BY. BY.

Step-by-step explanation:

Answer:

1.0·E6 or 1.0·10^6

Step-by-step explanation:

1,000,000:  one million.

Note that there are 6 zeros here.

1,000,000 written in exponential form would be 1.0·E6 or 1.0·10^6

Answer:

10^6

Step-by-step explanation: