# Which of the following equation have only one solutions? Select all correct answers. 4x^2+4x=0 X^2+6x+9=0 9x^2-25=0 5x^2+20x+20=0 X^2-x-6=0

QUESTION POSTED AT 03/12/2019 - 04:20 AM

QUESTION POSTED AT 03/12/2019 - 04:20 AM

The equations which have only one solution are: x²+6x+9=0 and 5x²+20x+20=0,

Curtis wants to build a model building.

The building height is 180 meter tall.

Now, the model building she wants to build is equals to 1.5cm on each 3.5 meters

Let’s find how tall Curtis’ building model is:

=> 180 meter / 3.5 meter

=> 51.429 meter

Now, let’s multiply this 1 by 1.5 cm

=> 51.429 x 1.5 cm

=> 77.143 centimeters

Round to the nearest tenths

=> 77.1 centimeter tall => the height of Curtis’ Model Building

The building height is 180 meter tall.

Now, the model building she wants to build is equals to 1.5cm on each 3.5 meters

Let’s find how tall Curtis’ building model is:

=> 180 meter / 3.5 meter

=> 51.429 meter

Now, let’s multiply this 1 by 1.5 cm

=> 51.429 x 1.5 cm

=> 77.143 centimeters

Round to the nearest tenths

=> 77.1 centimeter tall => the height of Curtis’ Model Building

ANSWERED AT 09/12/2019 - 05:12 AM

QUESTION POSTED AT 09/12/2019 - 05:12 AM

On a certain survey it says:

12 out 15 people in the United States prefer eating at the restaurant rather than home.

To know how many percent is this.

=> 12 / 15

=> 0.8 which is also 80%

Now, the 80% of the those people in the survey is 400.

Find the total number of people who took the survey.

Since we already have the 80%, we need to find the number of 20%

=> 400 x 20%

=> 400 x .20

=> 80

=> 400 + 80

=> 480 => the total number of people who took the survey

12 out 15 people in the United States prefer eating at the restaurant rather than home.

To know how many percent is this.

=> 12 / 15

=> 0.8 which is also 80%

Now, the 80% of the those people in the survey is 400.

Find the total number of people who took the survey.

Since we already have the 80%, we need to find the number of 20%

=> 400 x 20%

=> 400 x .20

=> 80

=> 400 + 80

=> 480 => the total number of people who took the survey

ANSWERED AT 09/12/2019 - 05:12 AM

QUESTION POSTED AT 09/12/2019 - 05:12 AM

A division problem is -64 divided by -4 which equals 16 since 16 points was deducted from 100 points

ANSWERED AT 09/12/2019 - 05:06 AM

QUESTION POSTED AT 09/12/2019 - 05:06 AM

We need to solve the system of equations.

If we solve by graphing, we get the answer:

ANSWERED AT 09/12/2019 - 05:05 AM

QUESTION POSTED AT 09/12/2019 - 05:05 AM

If you multiply 5.06 by 47.058 you will get 238.11348

ANSWERED AT 09/12/2019 - 05:04 AM

QUESTION POSTED AT 09/12/2019 - 05:04 AM

The answer to your problem is a+6x+5.

ANSWERED AT 09/12/2019 - 05:01 AM

QUESTION POSTED AT 09/12/2019 - 05:01 AM

(x+6)/2=5

=> x+6=10

=> x=4

=> x+6=10

=> x=4

ANSWERED AT 09/12/2019 - 04:54 AM

QUESTION POSTED AT 09/12/2019 - 04:54 AM

You know how the grid is right? Well shade in 40 (0.4) boxes across. Then shade 80 (0.8) boxes down.
Hope this helped

ANSWERED AT 09/12/2019 - 04:51 AM

QUESTION POSTED AT 09/12/2019 - 04:51 AM

To find out how much they earned, we need to find the GCF of 184 and 207.

The greatest common factor (GCF) of 184 and 207 is**23**.

That means they earn 23 dollars per day. That is your answer for part b.

And Thomas worked 184/23 =**8 days**

While Sharlina worked 207/23 =**9 days**

That is your answer for part a.

The greatest common factor (GCF) of 184 and 207 is

That means they earn 23 dollars per day. That is your answer for part b.

And Thomas worked 184/23 =

While Sharlina worked 207/23 =

That is your answer for part a.

ANSWERED AT 09/12/2019 - 04:51 AM

QUESTION POSTED AT 09/12/2019 - 04:51 AM

4693 <----- **I think this is how you solve it.**

x 18

x 18

ANSWERED AT 09/12/2019 - 04:44 AM

QUESTION POSTED AT 09/12/2019 - 04:44 AM

We subtract. We do 87-37 and that would equal 50. Therefore, y=50. Hoped I helped. :)

ANSWERED AT 09/12/2019 - 04:42 AM

QUESTION POSTED AT 09/12/2019 - 04:42 AM

10 exponent 4 is not the same as 40 000. Tia’s
thinking is definitely wrong.

Because exponent is a number that indicates how many times you will going to multiply the base number.

Let’s show how we do it:

=> 10 ^ 4

=> 10 x 10 x 10 x 10 , where 10 is our base number and 4 is our exponent. So we multiply 10 4 times

=> 10 000 = the correct answer to the given equation.

Because exponent is a number that indicates how many times you will going to multiply the base number.

Let’s show how we do it:

=> 10 ^ 4

=> 10 x 10 x 10 x 10 , where 10 is our base number and 4 is our exponent. So we multiply 10 4 times

=> 10 000 = the correct answer to the given equation.

ANSWERED AT 09/12/2019 - 04:38 AM

QUESTION POSTED AT 09/12/2019 - 04:38 AM

The answer to all your problems is 48.

ANSWERED AT 09/12/2019 - 04:31 AM

QUESTION POSTED AT 09/12/2019 - 04:31 AM

2.76g=3$

27/3 is 9 so 9x6=64

27/3 is 9 so 9x6=64

ANSWERED AT 09/12/2019 - 04:25 AM

QUESTION POSTED AT 09/12/2019 - 04:25 AM

4.28 is a decimal and not a mixed number. To write it as a mixed number you keep the 4 and put 28 over 100 then simplify.

4.28= 4 28/100 (simplify)

4 28/100= 4 14/50= 4 7/25

4.28 as a mixed number would be 4 7/25

4.28= 4 28/100 (simplify)

4 28/100= 4 14/50= 4 7/25

4.28 as a mixed number would be 4 7/25

ANSWERED AT 09/12/2019 - 04:22 AM

QUESTION POSTED AT 09/12/2019 - 04:22 AM

Stephens family had a reunion last weekend.

If there were 24 family members and 8 apple pies cut into 6 slices,

what answer choice represents the fraction of one apple pie

that each family member received?

Each family member received 1/4 of an apple pie.

If there were 24 family members and 8 apple pies cut into 6 slices,

what answer choice represents the fraction of one apple pie

that each family member received?

Each family member received 1/4 of an apple pie.

ANSWERED AT 09/12/2019 - 04:00 AM

QUESTION POSTED AT 09/12/2019 - 04:00 AM

The best equation would be A.

with A you get to calculate what is the value of $.

8 + $ = 10 (10 is the total value of your receipt and 8 is the price of pizza)

$ = 10 - 8 (we transfer the price of pizza on the other side to the total amount of your receipt and calculate the remaining amount)

$ = 2

We see that the remaining amount is 2$, which means the salad cost s2$ :)

with A you get to calculate what is the value of $.

8 + $ = 10 (10 is the total value of your receipt and 8 is the price of pizza)

$ = 10 - 8 (we transfer the price of pizza on the other side to the total amount of your receipt and calculate the remaining amount)

$ = 2

We see that the remaining amount is 2$, which means the salad cost s2$ :)

ANSWERED AT 09/12/2019 - 03:56 AM

QUESTION POSTED AT 09/12/2019 - 03:56 AM

A. 24 + X

B. 24 + X = 36

C. 36 - 24 = X

B. 24 + X = 36

C. 36 - 24 = X

ANSWERED AT 09/12/2019 - 02:41 AM

QUESTION POSTED AT 09/12/2019 - 02:41 AM

The problem here is: Too many words.

If you boil the problem down to the bare facts, the question is:

"$210 is 15% of what number ?"

I'm pretty sure you can take it from there,

but here's the rest of it anyway:

$210 = 15% of (March amount)

$210 = 0.15 x (March amount)

Divide each side by 0.15 :

1400 + 210 = 1610

1.15 x 1400 = 1610 yay!

ANSWERED AT 09/12/2019 - 02:32 AM

QUESTION POSTED AT 09/12/2019 - 02:32 AM

D. because, a straight angle is a angle measuring at 180 degrees and when you look at it, it looks like a straight line.

hope this helps ;)

hope this helps ;)

ANSWERED AT 09/12/2019 - 01:32 AM

QUESTION POSTED AT 09/12/2019 - 01:32 AM

D. y= -0.054(44) 44.54 because the years 1976 and 1996 are 20 years apart, that would be the original X, but it asks for the year 2020 which is 44 years from 1976, so plug 44 in for x and it will be right. ;)

ANSWERED AT 09/12/2019 - 01:27 AM

QUESTION POSTED AT 09/12/2019 - 01:27 AM

I would think that thwe equation used to solve it would be 0.2 - r = s.

ANSWERED AT 09/12/2019 - 01:27 AM

QUESTION POSTED AT 09/12/2019 - 01:27 AM

For this case, the first thing we must do is define a variable.

We have then:

x: unit cost of each pack of soda

We now write the equation that models the problem.

We know that:

3 packs of soda cost $ 10 less than 5 packs of soda.

We have then:

**Answer:
**

**an equation that models this is:
**

ANSWERED AT 09/12/2019 - 12:21 AM

QUESTION POSTED AT 09/12/2019 - 12:21 AM

Cost 1 pack = x

3x + 10 = 5x;

2x = 10;

x = 5.

1 pack cost $5

ANSWERED AT 09/12/2019 - 12:21 AM

QUESTION POSTED AT 09/12/2019 - 12:21 AM

**Step-by-step explanation:**

The product of two numbers is 45. One number is greater than the other by 4 units. The numbers are as follows.

9 × 5 = 45

Again the product of two numbers is 45. One number is greater than the other by 12 units. The numbers are as follows.

15 × 3 = 45

Again the product of two numbers is 45. One number is greater than the other by 44 units. The numbers are as follows.

45 × 1 = 45

ANSWERED AT 08/12/2019 - 10:43 PM

QUESTION POSTED AT 08/12/2019 - 10:43 PM

The answer is **b** because the 3 is in the x value spot. (x,y)

ANSWERED AT 08/12/2019 - 05:02 PM

QUESTION POSTED AT 08/12/2019 - 05:02 PM

There is 60 possible so the fraction will be 51/60 which equals .85

ANSWERED AT 08/12/2019 - 04:58 PM

QUESTION POSTED AT 08/12/2019 - 04:58 PM

So obviously the answer they gave you is wrong. :P

ANSWERED AT 08/12/2019 - 04:58 PM

QUESTION POSTED AT 08/12/2019 - 04:58 PM

14+6 =20 (first)

20 *5 =100(second)

100+4 =104(third)

Your answer is 104

ANSWERED AT 08/12/2019 - 04:58 PM

QUESTION POSTED AT 08/12/2019 - 04:58 PM

Here is your answer click the file

ANSWERED AT 08/12/2019 - 04:56 PM

QUESTION POSTED AT 08/12/2019 - 04:56 PM