Hi, can anyone please help with this? I'm having a very hard time with this specific problem plus math is my least strong subject and it would mean so much if someone could help. Thank you!!

Hi, Can Anyone Please Help With This? I'm Having A Very Hard Time With This Specific Problem Plus Math
Hi, Can Anyone Please Help With This? I'm Having A Very Hard Time With This Specific Problem Plus Math

Answers

Answer 1

Answer:

Step-by-step explanation:

For reference the quadratic equations looks like this

(-b±[tex]\sqrt{b^2-(4*a*c)}\\[/tex])/2a

Amy's mistake (and solution)

We can see that when amy mulitplied c she wrote 20 instead of -20 (in step 1). She can fix this by writing (4*1*-20) instead

Richard's mistake (and solution)

When richard messed up on step 5 when he wrote (6-2i)/2. You only would write the i if the negative was in the radical (but in this case it's outside). You would fix this by just getting rid of the i entirely (and keeping the 2)

I'm not really too sure how you would do three but I'll give it a shot anyways

our equation will look like this: x²+2x

which means our quadratic equation would look like this

[tex]\frac{-2+/-\sqrt{2^2-4*1*0}}{2}\\=\\\\\frac{-2+/-(2)}{2}\\\\\\= -1+/-(1)\\\\-1+1=0\\-1-1=-2[/tex]

When I write +/- I mean plus or minus giving us -2 and 0 as our solutions


Related Questions

Which is greater 2/11 or 3/12

Answers

Answer:

3/12

Step-by-step explanation:

Answer:

3/12

Step-by-step explanation:

All you have to do is make your 2 fractions into decimals. To do that divide the numerator into the denominator. (Top number into the bottom number)

3/12--> 0.25

2/11--> 0.18 (rounded)

I hope this helps, and have a great day!

Warm-Up
82
80
1. The value of y
varies directly with
X. When y = 6.5, X
= 4. What is the
value of y when x
is 12?
78
Temperature (°F)
76
g
74
72
2. W
inter

Answers

Answer:

[tex]y=2\frac{1}{6}[/tex] or [tex]\frac{13}{6}[/tex]

Step-by-step explanation:

We know that [tex]x[/tex] and [tex]y[/tex] are directly proportional. Therefore, using the given information, we can set up the following proportion:

[tex]\frac{6.5}{12}=\frac{y}{4}[/tex]

Solving for [tex]y[/tex], we get:

[tex]\frac{6.5}{12}=\frac{y}{4}[/tex]

[tex]12*y=6.5*4[/tex] (Cross-Products Property)

[tex]12y=26[/tex] (Simplify)

[tex]\frac{12y}{12} =\frac{26}{12}[/tex] (Divide both sides of the equation by [tex]12[/tex] to get rid of [tex]y[/tex]'s coefficient)

[tex]y=2\frac{1}{6}[/tex] or [tex]\frac{13}{6}[/tex] (Simplify)

Hope this helps!

-24 1/2 as a decimal number

Answers

Answer and Explanation

__________________________________________________________

-24.5

__________________________________________________________

The answer is -24.5 because...

[tex]\frac{1}{2}[/tex] = [tex]0.5[/tex]

and

[tex]-24[/tex] = [tex]-24[/tex]

__________________________________________________________

[tex]-24[/tex] [tex]+[/tex] [tex]0.5[/tex] = -24.5

__________________________________________________________

Hope this helps! :)

__________________________________________________________

Daniel is 12
3
4
years old. Carl is 1
3
8
years younger than Daniel and Jane is 1
1
5
years younger than Carl. How old is Jane?

Answers

tiene 981 años

Step-by-step explanation:

a cake recipe calls for 525 grams of flour. about how many pounds of flour do you need?

Answers

Answer:

1

Step-by-step explanation:

1g -> 0.00220462 pounds

525g ->1.15743 pounds

           ≈ 1 pounds

HELP PLEASE! i need an answer by the end of the night

Answers

Answer:

Step-by-step explanation:

The going up is potential energy, the going down is kinetic energy. Not sure the two different energy conversions is asking.

what is 1/2+p=-3 i need help

Answers

Answr:

p=−7/2

Step-by-step explanation:

Simplify both sides of the equation.

p+

1

2

=−3

Step 2: Subtract 1/2 from both sides.

p+

1

2

1

2

=−3−

1

2

p=

−7

2

So
1/2+p=-3
1/2+3/1=-p
1/2+6/2=-p
7/2 = -p
P= 7/2

Mary wants to do a cheesecake. She needs 4 1/2 cups of sweet cream. She knows that 1
cup = 8 ounces How many ounces does she need?
Plsss 50 points!?

Answers

Answer:

36 ounces

Step-by-step explanation:

If 1 cup equals 8 ounces, you would multiply 4 1/2 by 8. 8 x 4 is 32 (ounces), and half of 8 is 4, so 4 ounces. You would then add 32 and 4 together to get your answer. Hope this helps!!

Answer:

She needs 36 ounces.

Step-by-step explanation:

4 1/2=9/2

1/8=(9/2)/x

cross product

8(9/2)=1*x

72/2=x

x=36

Write all the names of the quadrilateral shown.
???

Answers

Answer:

Rhombus

Step-by-step explanation:

What are the values that make h > -8 true?
(Multiple Choice)
-16, -9, -8.001, -7.99, -5, -13, -8.1, -8, -7.9, -3, -11, -8.01, -7.999, -7, 0​

Answers

Answer:

0

Step-by-step explanation:

Horatio has 230 dollars to be used only on his car. He wishes to save 160 of this money and spend $24.95 on an oil change. Horatio knows that gas costs $3.81 per gallon. Which of the following shows how many gallons of gas (g) he could buy? 3 needed.

A. g ≤ 11.82

B. g ≤ 60.37

C. 3.81 ≤ 45.05

D. 3.81 ≤ 230 + 160 + 24.95

E. 160 + 24.95 + 3.81 ≤ 230

F. 184.95 + 3.81g ≤ 45.05

I'd be greatly thankful if you told me the answers!

Answers

Answer:

g<_11.82

3.81<_230

160+24.95

so, ade

Step-by-step explanation:

Ron made 3 pitchers of lemonade to sell at a lemonade stand. The cost of making the lemonade is 50 cents per pitcher of lemonade.

He sold each cup of lemonade for 15 cents, and he sold a total of 36 cups of lemonade.

How much money did Ron make selling lemonade after paying out the cost of making the lemonade?

Answers

Answer:

3.90 I think.

Step-by-step explanation:

first, 15×36. then subtract 50 three times.

Answer:

$3.90

Step-by-step explanation:

The cost of making them all is 1.50 subtracted from the profit he made

Help with this it’s due today.!!!!

Answers

Answer:

Right answer is 10 I hope it's helps you

if f(x)=x^2-3x-4 and g(x)=x^2+x, what is (f+g)(x)?

Answers

Answer:

Step-by-step explanation:

Set up the composite result function.

f

(

g

(

x

)

)

Evaluate  

f

(

g

(

x

)

)

by substituting in the value of  

g

into  

f

.

f

(

x

+

2

)

=

3

(

x

+

2

)

4

Simplify each term.

Tap for more steps...

f

(

x

+

2

)

=

3

x

+

6

4

Subtract  

4

from  

6

.

f

(

x

+

2

)

=

3

x

+

2

Function 1
{(2, -4), (4, -3), (6, -1), (8,3)}
Linear
Not linear ?

Answers

Answer:

It should be Linear?

Step-by-step explanation:

Find the slope of the line containing the pair of points (-1,-18) and (-13,-19)

Answers

Answer:

Slope: 3.083333333

Step-by-step explanation:

please help and explain how to solve

Answers

Answer:

45

Step-by-step explanation:

25 ÷ 45 = 0.555 x 81 = 45

Answer:

A 45-foot tree will cast a 81-foot shadow.

Step-by-step explanation:

Set up a proportion.

I'll set mine up like this:

[tex]\frac{Height of Tree}{Shadow}=\frac{Height of Tree}{Shadow}[/tex]

Insert the values given then solve for the unknown (t).

[tex]\frac{25}{45}=\frac{t}{81}[/tex]

[tex](81)\frac{25}{45}=\frac{t}{81}(81)[/tex]

[tex]45=t[/tex]

The local movie theater wants to increase ticket prices by 37% to keep up
with rising costs. The current price of a ticket is $8. What will the new ticket price
pe after the 37% increase (to the nearest cent)? Show your work.

Answers

Answer:

$10.96

Step-by-step explanation:

8 * 1.37 = $10.96

Double check the work

8x .37 = 2.96

8+2.96 = 10.96

Unit rate 5 breaks in 8 hours

Answers

.625 I think but sorry if not

You are finding the SLOPE!! Please answer all of these! I will mark brainliest^^

Answers

m = 1/2

m = -1/5

m=9

m= 1

m = 4/5

m= -5/4

Hope I helped ~~Laurel

Jackson's mom prepares 3/4 of a pound of fudge for his class Valentine's Day party. Only 1/3 of the fudge is eaten. How much of a pound of fudge is eaten?​

Answers

5/12 of the pound of fudge is eaten.

You buy two shirts online that cost x dollars each. The total which includes a $10 shipping fee is $39.98. Which equation can you use to find the price of the shirt?
A. 2x = 39.98
B. X + 10 = 39.88
C. 2x +10 = 39.88
D. 2x+10x=39.88

Answers

Answer:

C. 2x + 10 = 39.88

Step-by-step explanation:

2x will give you the price of the 2 shirts and you have to add the fee of $10 to get the total of $39.88

what is the area of a rectangle with a length of 21 feet and a width of 12 feet?

Answers

area = length x width
21 x 12 = 252
area = 252

Х
3х+8
Find the value of x

Answers

the answer is -8/3. first you set it equal to zero, subtract 8 from both sides you get 3x=-8, divide both sides by 3 and you get -8/3

Answer:

x=2[tex]\frac{2}{3}[/tex]

Step-by-step explanation:

divide both size by 3

⇒[tex]\frac{3x}{3}[/tex]=[tex]\frac{8}{3}[/tex]

3 will cancel 3x then x will stand on it own

x=[tex]\frac{8}{3}[/tex]

3 will divide 8

x=2[tex]\frac{2}{3}[/tex]

Alisha buys 6 boxes of peanut butter granola bars and 6 boxes of cinnamon granola bars. Let p represent the number of peanut butter granola bars and c represent the number of cinnamon granola bars. Jaira and Emma each write an expression that represents the total number of granola bars Alisha bought.

Jaira
6p + 6c

Emma
6(p + c)
Are the expressions equivalent?

Answers

Answer:

Yes.

Step-by-step explanation:

Eric is purchasing Valentine's gifts for all his friends he buys each of his friends either candy bar for 1.50 or stuffed animal for $7 how much money does Eric spend if he purchased 13 candy bars and 4 stuffed animals

Answers

Answer: Will spend $47.50
28$ for the stuffed animals and 19.5$ for the chocolate, you put those two together and you get 47.5$

WILL GIVE BRAINLIEST!
Consider the following.
twelve times the difference between a number and fifty-five
Translate into a variable expression. (Use x for your variable. Do not simplify.)

Answers

Oh wyeah wowowiwo wowowiwo

You invest $4000 into an account that compounds interest on a quarterly basis at 3%. how much money will you have after 5 years? Compound interest formula: A = P(1+r/n)^(nt)

Answers

Answer:

26666.6

Step-by-step explanation:

So sorry if this is wrong i tried

The amount after 5 years is $4,644.74.

What is compound interest?

It is the interest we earned on the interest.

The formula for the amount earned with compound interest after n years is given as:

A = P[tex](1 + r/n)^{nt}[/tex]

P = principal

R = rate

t = time in years

n = number of times compounded in a year.

We have,

P = $4000

n = 4

r = 3%

t = 5 years

A = 4000 [tex](1 + 0.03/4)^{20}[/tex]

A = 4000 x [tex]1.0075^{20}[/tex]

A = $4,644.74

Thus,

The amount after 5 years is $4,644.74.

Learn more about compound interest here:

https://brainly.com/question/13155407

#SPJ2

Delilah works at RaceTrac for $8 an hour. Which equation best represents this situation?
y = x
y = 8x
y = 4x
y = 16x

Answers

The second option, y= 8x

State the slope and the y-intercept in each equation. Then graph each linear equation. Be sure to fill out the entire graph and connect the points!

Answers

m = -1/2
b = 3
Sorry the photos sloppy
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