Which equation has exactly one solution?

7
x
=
7
7 x is equal to 7

7
x
=
7
x
7 x is equal to 7 x

x
+
1
=
x
+
1
x plus 1 is equal to x plus 1

x
+
1
=
x
+
2

Answer:

49c2

Step-by-step explanation:

Answer is [tex]\frac{33}{8}[/tex]

So 30 questions on the test

27 ÷ 90 = 30

Answer:

The answer is 3,000 because the 5 next to the 2 make it go up

Step-by-step explanation:

Answer:

3000

Step-by-step explanation:

5 or bigger round up

4 or smaller round down

Answer:

its the second one can u make me brain list

Step-by-step explanation:

Answer:

R = 0.8815 ;

y = 6.14679X + 2.33028 ;

14.624

Step-by-step explanation:

Using an online correlation Coefficient calculator, the correlation Coefficient, R between the number of lawn fertilizer sold and the number of lawn mowers sold is 0.8815. This R value depicts a strong positive correlation between both variables.

The regression line equation obtained by Plotting the values to generate a linear model is :

y = 6.147X + 2.330

With ;

Slope or gradient being 6.147

Intercept = 2.330

C.)

x = 2

y = 6.147X + 2.330

y = 6.147(2) + 2.330

y = 14.624

Answer:

first one is A second on is C third is B fourth is B HOPE THIS HELPS

Answer:

1. A

2.C

3.B

4.B

Step-by-step explanation:toke test

The statement that could be false on the interval is if x is greater than π/2

Given the function g(x)=√ 1−sin2x

We are to get the value of x that will make the function not exist. For the function not to exist, hence:

sin2x> 1

Solve the expression for x

2x > arcsin(1)

2x > π

x > π/2

This shows that the statement that could be false on the interval is if x is greater than π/2

Learn more here: https://brainly.com/question/18738481

Answer:

4

Step-by-step explanation:

20 x 0.80

16 - 20

Answer:

4 questions

Step-by-step explanation:

4 wrong = 80%

Answer:

x=27

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

5/3x-4/3x-1=8

5 /3 x+  −4 /3 x+−1=8

(5 /3 x+  −4 /3 x)+ (−1) =8 (Combine Like Terms)

1/3x-1 =8

1/3x=9

(1/3 x) x 3 = 3 x 9

x=27

Answer: x=27

Step-by-step explanation: if you want to Solve for X, you have to by simplify both sides of the equation, then isolating the variable.

Answer: 478161

Step-by-step explanation:

Answer

(6,4)

Step-by-step explanation:

I think that is the answer and I am sorry if it is wrong!

Answer:

you earn 25 because 5x5 is 25

Step-by-step explanation:

Answer:

Dependent-y

Independent-x

Step-by-step explanation:

Answer:

It then came down 11 floors and went back up 16. At what floor ... an elevator started at the first floor and went up 18 floors. It then ... up 16. At what floor was it stopped​. 1 ... hassalmughal10 is waiting for your help. Add your

Answer:

9900

Step-by-step explanation:

Answer:

0.01

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given that:

scores = 2, 3, 4, 4, 5, 5, 5, 6, 6, 7

Since the scores are already in ascending order; then the median which is the middle number will be:

median = (5th term + 6 term)/2

median = (5+5)/2

median = 10/2

meian = 5

b)

Use the cumulative percentage table

X     frequency    cumulative frequency     cumulative percentage

2         1                     1                                            10%

3         1                     2                                           20%

4        2                     4                                            40%

5        3                     7                                             70%

6        2                     9                                             90%

7        1                     10                                             100%

fraction = the no. required to reach 50%/ no. in that interval

= 1/3

Since we have a total of 4 boxes when we reach the value of 4.5

The median of the continuous variable = 4.5 + (1/3)

The median of the continuous variable = 4.833

The median of the continuous variable ≅ 5

Answer:

Step-by-step explanation:

Given that:

scores = 2, 3, 4, 4, 5, 5, 5, 6, 6, 7

Since the scores are already in ascending order; then the median which is the middle number will be:

median = (5th term + 6 term)/2

median = (5+5)/2

median = 10/2

median = 5

Answer:

mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

questions

Step-by-step explanation:

mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

Answer:

[tex]A(t)=250-230e^{-\frac{t}{50} }[/tex]

Step-by-step explanation:

A(t) is the amount of salt in the tank at time t.

dA / dt = rate of salt flowing into the tank - rate of salt going out of the tank

dA / dt = (1 g/L)*(5 L/min) - (A(t)/250 g/L) * (5L/min)

dA / dt = 5 g/min - (A(t) / 50) g/min

[tex]\frac{dA}{dt}+\frac{A(t)}{50} = 5\\\\The\ integrating\ factor(IF)= e^{\int\limits \frac{1}{50}dt }=e^{\frac{t}{50} }\\\\Multiplying\ through\ by\ the\ I.F:\\\\\frac{dA}{dt}*e^{\frac{t}{50} }+\frac{A(t)}{50}*e^{\frac{t}{50} } = 5*e^{\frac{t}{50} }\\\\Integrating \ both \ sides:\\\\\int\limits[ \frac{dA}{dt}*e^{\frac{t}{50} }+\frac{A(t)}{50}*e^{\frac{t}{50} }] dt=\int\limits 5e^{\frac{t}{50} } dt\\\\A(t)e^{\frac{t}{50} } =\int\limits 5e^{\frac{t}{50} } dt\\\\[/tex]

[tex]A(t)e^{\frac{t}{50} } =250e^{\frac{t}{50} }+C\\\\A(t)=250+Ce^{-\frac{t}{50} }\\\\But\ A(0) = 20\\\\20=250+Ce^{-\frac{0}{50} }\\\\C+250=20\\\\C=-230\\\\A(t)=250-230e^{-\frac{t}{50} }[/tex]

Answer:

x=25

Step-by-step explanation:

To get this answer you need to simplify everything that you can. So basically, first you would combine 2x and x to get 3x+18. Note that you don't need to use the second part of the equation if you don't want to. Same with the third because they are all equal. Noting this, you subtract 18 from both sides of the equation leaving you with 75= 3x. Proceed to divide both sides by three and end with the answer 25=x.

Answer:

H.

Step-by-step explanation:

Look closely, and eliminate the ones that don't work.

Answer:

14 + 28 = 42

Step-by-step explanation:

2 x 3 x 7

Answer:

2 slices

Step-by-step explanation:

As given, Stephen buys a melon and divides it into 6 servings. And he eats 1/3 melon over the weekend. Hence, Stephen eats 2 slices over the weekend.

Answer:

2.359296x10^27

Step-by-step explanation:

Answer:

sorry going to the 18th power is a bit too much. however 9,000 x 20 = 18,000

Step-by-step explanation:

Answer:

y=3/4x+1/2

Step-by-step explanation:

slope intercept form: y=mx+b

find the slope with y2-y1/x2-x1: (-4-5)/(-6-6)= 3/4

substitute one of the coordinates in the equation with the slope: 5=3/4(6)+b

solve to find b:

b=1/2

substitute in the equation:

y=3/4x+1/2