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Rainbow [258]
3 years ago
6

Please help me and my daughter.

Mathematics
2 answers:
valina [46]3 years ago
7 0

Step-by-step explanation:

3x2−7x−20=03x2-7x-20=0

Use the quadratic formula to find the solutions.

−b±√b2−4(ac)2a-b±b2-4(ac)2a

Substitute the values a=3a=3, b=−7b=-7, and c=−20c=-20 into the quadratic formula and solve for xx.

7±√(−7)2−4⋅(3⋅−20)2⋅37±(-7)2-4⋅(3⋅-20)2⋅3

Simplify.

Tap for more steps...

x=7±176x=7±176

The final answer is the combination of both solutions.

x=4,−53

garri49 [273]3 years ago
3 0

Answer:

you can either factorise or use tge formula method

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The total income for the Mr. Jones’s apartment building can be represented by the equation 2R minus C minus 2P, where r is the a
son4ous [18]

total income= 2R-C-2P

R= omoun tof rent paid by each tenant = $700

C= cable bill = $100

P = Phone bill = $50

Replace the values:

Total income = 2(700)-100-2(50)

total income= 1,400-100-100 = 1,400-200= $1,200

Total income =$1,200

4 0
1 year ago
Consider the polynomial function g(x)=x³-3x²+6x+8. Divide g by x+1.
irina [24]

Answer:

Quotient ( x² -4x +10)

Reminder -2

Step-by-step explanation:

We have to consider the polynomial function g(x) = x³ - 3x² + 6x + 8

Now, we have to divide g(x) by (x+1)

Let us arrange the terms of g(x) to get (x+1) as common.

x³ - 3x² + 6x + 8

= x³ +x² -4x² -4x +10x +10 -2

= x² (x +1) -4x (x +1) +10 (x +1) -2

= (x +1)( x² -4x +10) -2

Hence, if we divide g(x) by (x +1) then the quotient will be ( x² -4x +10) and the reminder will be -2. (Answer)

3 0
3 years ago
The price of bananas went from $0.20 per lb to $0.60 per lb in four years. Find the rate of change of the price of bananas
MrMuchimi
$0.10 a year
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=.40
.40/4=10
6 0
3 years ago
Read 2 more answers
How many solutions does this equation have?
Greeley [361]

Answer:

No solution

Explanation:

-4+19-7f = -15-7

cancel terms on both sides ( add 7f on both sides)

Calculate the sum

-4+19= -15

-4+19=15

15 = -15

The statement 15 = -15 is false so there is no solution :)

4 0
2 years ago
if light bulbs are 4 for $2.00 , how much will 12 light bulbs cost , round to the nearest cent if necessary?
Rufina [12.5K]
If 4 are $2.00 , then x3 to get 12 light bulbs and 2x3=6 so it's $6.00
8 0
3 years ago
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