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2 years ago

NEED HELP NOW. WILL GIVE BRAINLIEST

Mathematics

2 answers:

Maurinko [17]2 years ago

8 0

Answer:

yea listen to the other person

Step-by-step explanation:

goldenfox [79]2 years ago

3 0

Answer: y = -2x² + 920x - 84168

suppose: the equation of the parabola is y = ax² + bx + c

because the parabola passes through (126,0); (134,3200); (334,0)

=> we have the equations:

126².a + 126b + c = 0

134².a + 134b + c = 3200

334². a + 334b + c = 0

⇒ a = -2

b = 920

c = -84168

=> the equation of the parabola is y = -2x² + 920x - 84168

Step-by-step explanation:

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What is the reciprocal? -2 8/9

scoray [572]

Answer:

Step-by-step explanation:

-8/9 is the reciprocal i believe

3 0

2 years ago

Is the given value a solution to the equation? 4(n) - 3 = -2(n) + 9 n=2

nlexa [21]

Answer:

Yes!

The solution to the equation is n = 2

Step-by-step explanation:

Given the equation

$4\left(n\right)-3=-2\left(n\right)+9$

remove the parentheses

$4n-3=-2n+9$

Add 3 to both sides

$4n-3+3=-2n+9+3$

Simplify

$4n=-2n+12$

Add 2n to both sides

$4n+2n=-2n+12+2n$

Simplify

$6n=12$

Divide both sides by 6

$\frac{6n}{6}=\frac{12}{6}$

Simplify

$n=2$

Therefore, the value of n = 2.

Hence,

Yes!

The solution to the equation is n = 2

5 0

2 years ago

Need the help thanks guys

Diano4ka-milaya [45]

Answer:

x=−5+√29 or x=−5−√29

Step

Let's solve your equation step-by-step.

x2+10x+10=14

Step 1: Subtract 14 from both sides.

x2+10x+10−14=14−14

x2+10x−4=0

For this equation: a=1, b=10, c=-4

1x2+10x+−4=0

Step 2: Use quadratic formula with a=1, b=10, c=-4.

−b±√b2−4ac

−(10)±√(10)2−4(1)(−4)

2(1)

−10±√116

x=−5+√29 or x=−5−√29

7 0

2 years ago

A movie fanatic has amassed a giant collection of home movies, some on DVD and others in the older VHS cassette mode. If the fan

frosja888 [35]

Answer:

984

Step-by-step explanation:

DVDs comprises 31.3% of total. And we also know that there are 308 DVD. Thus, we can say:

308 is 31.3% of total

We can let total be x, thus we can write an equation as:

308 = 0.313x

Solving for x:

$308 = 0.313x\\x=\frac{308}{0.313}\\x=984.02$

We can round and say there are 984 total movies

4 0

2 years ago

What is the value of x in the equation 0.7x – 1.4 = -3.5? O -7 Ο Ο Ο Ο 3 7

Butoxors [25]

0.7x-1.4=-3.5
Add 1.4 to both sides:
0.7x=-2.1
Divide 0.7 to both sides:
x=-3

5 0

2 years ago

Read 2 more answers