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NNADVOKAT [17]
3 years ago
8

Solve this quadratic equation using the quadratic formula. (3- y)(y + 4) =3y -5

Mathematics
2 answers:
iogann1982 [59]3 years ago
6 0

Answer:

y=-(2±√21)

Step-by-step explanation:

Basile [38]3 years ago
6 0

Answer:

y=-6.5

Step-by-step explanation:

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This is what I've done so far but does anyone know what I do next or did I make a mistake
grigory [225]
Remmeber, you can do anything to an equation as long as you do it to both sides

for inequalities, if you multiply or divide both sides by a negive, flip the direction of the inequality sign

pemdas always applies
but also the commutative property and assiociative property

so
2(5y+13)-6<20
add 6 both sides
2(5y+13)<26
divide both sides by 2 (easier that distributing)
5y+13<13
minus 13 both sides
5y<0
y<0 is the solution
7 0
3 years ago
PLEASE HELP ME! BRAINLEST IF CORRECT
Whitepunk [10]

Answer:

x = 147

Step-by-step explanation:

33 and x form a straight line which means they add to 180

x+33 =180

x = 180-33

x = 147

4 0
2 years ago
Read 2 more answers
The points at which the curve changes from curving upward to curving downward are called what
marshall27 [118]

Answer:

Inflection points. It's where the second derivative of the function is equal to zero

Step-by-step explanation:

7 0
3 years ago
1. The most massive planet in the solar system, Jupiter, has a mass of about 1,898,000,000,000,000,000,000,000,000 kg. Estimate
UNO [17]

Answer:

D. 2*10^{27} kg

Step-by-step explanation:

Mass of Jupiter is given as 1,898,000,000,000,000,000,000,000,000 kg

Estimating this to the nearest whole number would be = 2,000,000,000,000,000,000,000,000,000 kg (rounding up the the "1,898")

To express this in scientific notation form, simply count how many zeros we have to the nearest whole number, 2.

We have 27 zeros there.

Therefore, we would multiply the whole number, 2, by 10 raise to the power of 27.

An estimate of the mass of Jupiter = 2*10^{27} kg

6 0
3 years ago
The distance from a to B is 42 feet. The slope of the roof is 24 feet. What is the height of the attic
Hoochie [10]

well... 42+24=66 so the height of the attic is 66 feet

8 0
3 years ago
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