-7r2 + 7r + 2 = 2
Find Discriminant

Answers

Answer 1

Answer:

r = 1 , 0

Step-by-step explanation:

-7[tex]r^{2}[/tex] + 7r + 2 = 2

-7r(r-1)=2-2

-7r(r-1)=0

r-1=0

r=1

Answer 2
I think r=0 I think that’s the answer

Related Questions

You apply the
{Select)
operation
[ Select ]
-for multiplication equations and
[ Select ]
for division equations
-to
[ Select ]
of the equation.

Answers

Answer:

ndhduejcijgisjcidjcjzjfjidjicjdici djcojzifcjdjcu

Step-by-step explanation:

no se weydgfds

can anyone help me and explain​

Answers

Answer:

so all you have to do is graph the linear equation of y=3x+0. But, the greater than or equals to sign tells us to make a solid line and shade above

result:

Step-by-step explanation:

Three different accounts are described below. Order the accounts according to their values after 10 years, from greatest to least.

You deposit $950 in an account that earns 9% annual interest compounded daily.
= You deposit $1000 in an account that earns 8% annual interest compounded daily.
= You deposit $1000 in an account that earns 9% annual interest compounded semiannually.
= You deposit $1000 in an account that earns 10% simple interest.

Answers

Answer:

`1. You deposit $950 in an account that earns 9% annual interest compounded daily.

2.You deposit $1000 in an account that earns 8% annual interest compounded daily.

3. You deposit $1000 in an account that earns 9% annual interest compounded semiannually.

Step-by-step explanation:

Trick question, number 3 says semiannually so it is only twice a year, so it is the least. In math papa or any algebra calculator, put in the two equations and compare which is greater, in this case, y = 950(1.09)^10 is greater than y=1000(1.08)^10

Accounts according to their values after 10 years, from greatest to least. are Account 3, Account 1, Account 2 and Account 4.

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

The formula for daily compounding is:

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

where A is the future value,

P is the principal amount,

r is the annual interest rate,

n is the number of times the interest is compounded per year, and t is the time in years.

When we deposit $950 in an account that earns 9% annual interest compounded daily.

A = 950(1 + 0.09/365)³⁶⁵⁰

= $2,436.24

Deposit $1000 in an account that earns 8% annual interest compounded daily.

A = 1000(1 + 0.08/365)³⁶⁵⁰

= $2,223.97

Deposit $1000 in an account that earns 9% annual interest compounded semiannually.

A = 1000(1 + 0.09/2)²⁰

= $2,471.52

Deposit $1000 in an account that earns 10% simple interest.

The formula for simple interest is:

A = P(1 + rt)

where A is the future value, P is the principal amount, r is the annual interest rate, and t is the time in years.

Using this formula, we get:

A = 1000(1 + 0.10(10))

= $2,000

Now we can order the accounts from greatest to least based on their future values after 10 years:

Account 3: $2,471.52

Account 1: $2,436.24

Account 2: $2,223.97

Account 4: $2,000

Hence, accounts according to their values after 10 years, from greatest to least. are Account 3, Account 1, Account 2 and Account 4.

To learn more on Percentage click:

https://brainly.com/question/28269290

#SPJ2

y+8=3(x+1) slope intercept form

Answers

Answer:

Step-by-step explanation:

y + 8 = 3x + 3

y = 3x - 5

The measure of an angle is 39.3°. What is the measure of its complementary angle

Answers

i’m not sure but i think it’s 51 degrees

2. How many terms are there in the expression: 3a + 6

Answers

Answer: 2

Step-by-step explanation: That expression is a binomial in any case the terms in a polynomial are separated by a plus or minus sign (+,-) so you can determine the number of terms by counting how many number or variable are being separated (ex: 3a+a-1 would have 3 terms and be a trinomial)

The length of a rectangular frame is 4 inches longer than twice the width. If the perimeter is 38 inches, find the dimensions of the frame.
WILL GIVE WHOEVER ANSWERS BRAINIEST

Answers

Answer:

The width of the rectangle is 20 inches, and the length is 36 inches.

Step-by-step explanation:

2(2x-4) + 2x = 112

4x - 8 + 2x = 112

6x - 8 = 112

6x = 120

x = 20

I hope this helps️️

A rectangle is 4 times as long as it is wide. The perimeter is 30 feet. Find the dimensions.

Answers

Answer:

Express your length and width as algebraic expressions:

 

width = x

length = 4x

 

Use the formula for the perimeter of a rectangle to solve for x:

 

perimeter = 2(length) + 2(width)

50 = 2(4x) + 2(x)

50 = 8x + 2x

50 = 10x

5 = x

 

The width (x) is 5 feet and the length (4x) is 20 feet.

Step-by-step explanation:

Answer: 3 by 3 by 12 by 12

Step-by-step explanation: Two sides are x feet long. The two other sides are 4 times x feet long. 4x+4x+x+x =10x

Set that equal to 30 and solve. x=3

Plug back into the original 4x's and x's to get the lengths

Dean is comparing prices on ground beef. Store A is selling 5 pounds of ground beef for $23.49. Store B is selling 8 pounds of ground beef for $36.96. Which store is offering the better deal on ground beef?

Answers

Answer:

ground beef? pounds  42!

Step-by-step explanation:

5 pounds !  

Subtract -b + 3 from -11b -4 a. 10b+7 b. -12 - 1 c. 10b - 7 d. -10b - 7

Answers

Answer:

d. -10b-7

Step-by-step explanation:

Which expression has the same value as -4(5 - x)?
A. -4.5 + 4.x
B. -4.5 - 4.x
C. (-4 + 5).(-4 + ( - x))
D. (4 - 5)(-4 - x)

Answers

None of these is correct.
-4(5-x)
= (-4•5) + (-4•-x)
= -20 + 4x
= 4x-20
None of them have the same value

Mrs. Hartill drove 3.1 miles to the grocery store, then 4.25 miles to the salon, and 10.8 miles to her sons house. How many miles did she drive altogether?

Answers

Answer: 18.15 miles

Step-by-step explanation:

The answer is 18.15 miles

10. 13(m - 2) = -4(11 + m) - 1

Answers

Answer:

if you're solving for M then your answer is

m = -19/17

A ball shaped like a sphere has a radius of 1.5 feet. What is the measurement of the volume of the ball in cubic feet?​

Answers

Answer:

9.42

Step-by-step explanation:

1.5 is the radius so you plug it into [tex]\pi r^{2}[/tex] to get about 7.07 than do get the volume of a sphere you multipy by (4/3). I used my phone so you may want to use a ti84 so you can reuse the answers to get it more exact. It is a rounded answer with rounds at each step.

Minxia counted 40 green cars and 20 silver cars in the parking lot. If the number of green cars stays the same, how many more silver cars would need to be added so the ratio of green cars to silver cars is 1 to 3?

Answers

Answer:

100 more  silver.

Step-by-step explanation:

What the mean daily snowfall

Answers

Answer:

Daily Snowfall means the amount of snow that fell on a single day.

Hope this helps!!!

Please help im confused

Answers

Answer:

The third one

Step-by-step explanation:

Since this is looking down on the cubes from above, I feel it is safe to assume that it is the third one.

From left to right, top to bottom:

3, 2, 2

2, 2, 1

2, 2, 1

We can see that all but 3 layers are 2 blocks high. The 3 block area is the top left corner, since it is 1 block higher than the 2 block areas, and the 1 block areas are the middle right and the bottom right areas.

Find the length of the third side. If necessary, write in simplest radical form.
3
6

Answers

Answer: 5.2 units

Step-by-step explanation:

This is a right-angled triangle which means that the missing length can be solved using the Pythagorean theorem:

c² = a² + b²

Where c is the hypotenuse

a and b are the other sides.

c =  6

a = 3

b = ?

6² = 3² + b²

36 = 9 + b²

b² = 27

b = √27

b = 5.2 units

Answer:

its 3√3

Step-by-step explanation:

Solve the following equations for the given variable.
3x + 2y = 6 for y
Answer:

Answers

Answer:

y=3

Step-by-step explanation:

you just need to do 2 divided by 6

Answer:   y = -3/2x + 3

Step-by-step explanation:

3x + 2y = 6        First Isolate y by subtracting 3x from both sides  

-3x          -3x

   2y = -3x + 6       Now divide both sides by 2

  y = -3/2x + 3

Two sides of a triangle measure
8 centimeters and 13 centimeters. Which
of the following could not be the length of
the third side?
A 4 cm
4
C 14 cm
B 8 cm
D 18 cm

Answers

Answer:

4

Step-by-step explanation:

Answer:

A:4cm

Step-by-step explanation:

help me, please!!!!!

Answers

Answer:

25 cm is the perimeter...........

Answer:

25 cm

Step-by-step explanation:

When you are told that any figure is regular it means all the sides have the same value.

A pentagon has 5 sides.

Each side is 5 cm.

The perimeter is the addition of all the sides.

To find it we just multiply

5*5= 25 cm

Hope it was helpful ;)

An elevator started at the third floor, it went up
nine floors, then down six floors and then up
two floors. Where is it now?
O 25th floor
O 12th floor
O 5th floor
O 8th floor

Answers

It would be at the 8th floor

Answer:

It would be at the 8th floor Hope it helped

Step-by-step explanation:

Slope and equation
m = 4\5
(6,-5)

Answers

Answer:

[tex]y = \frac{4}{5} x -9.8[/tex]

Step-by-step explanation:

I hope this is what you were looking for.

Answer:

y=4/5x-9.8

Step-by-step explanation:

For this you would need to use point-slope form which is: y-y1=m(x-x1)

All you have to do is put in -5 for y1, 6 for x1, and 4/5 for m.

So, the equation should then be y+5=4/5(x-6)

Then, start by solving the right side of the equation by distributing 4/5 into (x-6)

This will then leave you with the equation, y+5=4/5x-24/5

Next, you have to subtract both sides by 5.

Once done, your final answer should be y=4/5x-9.8

Convert 1;3/4 into an improper fraction​

Answers

1 3/4 becomes7/41 = 4/44/4 + 3/4 = 7/4
It becomes 7/4 :)) hope I helped

Dora is thinking of a number between 500 and 600
When she divides it by a 1-digit number it has a remainder of 4
What could Dora’s number be?

Answers

9514 1404 393

Answer:

  500 ÷ 8 = 62 r 4, for example

Step-by-step explanation:

In order to have a remainder of 4, the divisor must be greater than 4, so could be any of 5, 6, 7, 8, 9.

The corresponding numbers could be any of ...

  504 +5n . . . 0 ≤ n ≤ 19

  502 +6n . . . 0 ≤ n ≤ 16

  501 +7n . . . 0 ≤ n ≤ 14

  500 +8n . . . 0 ≤ n ≤ 12

  508 +9n . . . 0 ≤ n ≤ 10

__

For example, with the divisor being 6, and n=13, the number could be ...

  580 = 6·96 + 4

132 ounces is what percent of 15 pounds?

Answers

Answer:

25%

Step-by-step explanation:

Answer:

19.8

Step-by-step explanation:

Find the slope of the line that passes through the points (2,5) and (-8,5).
Only give the number of the slope, nothing else.

Answers

y₂-y₁
--------
x₂-x₁

=

5-5
--------
-8-2

0
-----
-10

slope = 0

cómo resolver sopa de números encontrando resultados de divisiones por ejemplo 436/2​

Answers

Answer:

Lo resuelves como de costumbre :)

Step-by-step explanation:

Answer:

218

Step-by-step explanation:

Which equation in point-slope form describes the line that passes through the point (4,-5) and is perpendicular to
the line represented by - 7x + 2y = 14?

Answers

Answer:

18

Step-by-step explanation:

to be 18 7 bitween one is the complet the neme of soit and can be instracttion

Answer:

d

Step-by-step explanation:

y+5=-2/7(x-4)

C=-a/b what does a equal

Answers

Answer:

a = -bc

Step-by-step explanation:

We are given the equation:

c = -a/b

Because multiplication and division are inverse operations, if we move b over to the other side, since it was dividing on the right side, it would be multiplied on the other side (I don't know how to explain that well)

so you can make it look like this:

b*c = -a

Or:

-a = b*c

Then, do isolate a, we will have to divide by -1 on both sides

a = -b*c

To check this, we can plug in numbers

-8 = -16/2

-16 = -8*2

16 = 8 * 2

Let me know if you have any questions

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