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hoa [83]
3 years ago
5

Please help !!! It’s emergency

Mathematics
2 answers:
netineya [11]3 years ago
7 0

Answer:

in photo

Step-by-step explanation:

siniylev [52]3 years ago
6 0

Answer:

The derivation of this formula can be outlined as follows: Divide both sides of the equation ax2 + bx + c = 0 by a. Transpose the quantity c/a to the right side of the equation. Complete the square by adding b2 / 4a2 to both sides of the equation.

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4) A (3,6) B (7,2) what is the bisector
xxMikexx [17]
The bisector should be (5,4)
4 0
3 years ago
Does anyone know how to solve a system of linear equations using elimination? I am having a hard time on how to do it for differ
Mariana [72]
1. Multiply each equation so they end up with the same coefficient

2. Subtract your second equation from the first

3. Solve for one of the variables (I tend to solve an equation that only contains 2 variables if possible. So it would be if you have one question with x and y, solve for the easier one)

4. Substitute the variable you found in the least step into one of the other equations and find a second variable.

5. Substitute both variables you found into the last equation and there you should be left with x, y, and z :))

I hope this helped sksjsk if it didn’t I could write it out to hopefully help more :)
3 0
3 years ago
A sphere has a radius of 4 in. Which equation finds the volume of the sphere? V = four-thirds pi (4) cubed V = four-thirds (4) c
andrey2020 [161]

Answer:

If the sphere has a radius of 4, you can use the equation: V=4/3(pi)(r)^3

Step-by-step explanation:

V=4/3(pi)(r)^3

V=4/3(pi)(4)^3

3 0
4 years ago
Read 2 more answers
paula has 24 coins in her drawer. 7 of the coins are nickles and the res are pennies. what is the total value in cents of the co
Harlamova29_29 [7]

First of all, we know that a nickel is worth 5 cents, and a penny is worth 1 cent. Let's figure out how many cents in nickels Paula has first.


We know she has 7 nickels, and each of them are worth 5 cents.

7 x 5 = 35.


Now that we know the value of Paula's nickels, let's figure out how many pennies she has left. Let's subtract the 7 nickels from the total 24 coins Paula has.

24 - 7 = 17.


Now that we know she has 17 pennies left, we know that each penny is worth a cent, so she has 17 cents worth of pennies. Let's add the 17 cents of pennies to the 35 cents of nickels.

17 + 35 = 52.


There you have it, Paula has a total of 52 cents in her drawer.


Hope this helped you out. :)

5 0
3 years ago
Read 2 more answers
Suppose that y is inversely proportional to the 4th power of x, and that y=15 when x=5. What is y when x=7? Round your answer to
Galina-37 [17]

Answer:

y = 3.91 when x =7

Step-by-step explanation:

y = k / x⁴

Where,

k = constant of proportionality

y=15 when x=5

y = k / x⁴

15 = k / 5⁴

Cross product

15 × 5⁴ = k

15 × 625 = k

9,375 = k

What is y when x=7?

y = k / x⁴

= 9,375 / 7⁴

= 9,375 / 2401

= 3.9046230737192

Approximately

y = 3.91

7 0
3 years ago
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