select all equations where b=11 is a soultion

Answer:

the answer of this question is C. f(30) = f(20)

Answer:

Q1: 28 : 3

Q2: 36 : 3

Step-by-step explanation:

Q1 EXPLANATION:

theirs 7 days in a week and theirs four weeks

4 x 7 = 28, theirs 3 days

            28 : 3

Q2 EXPLANATION:

Theirs 12 in a dozen and theirs 3 dozens

3 x 12 = 36, theirs 3 eggs

           36 : 3

Q3 EXPLANATION:

8 litres is 144 km

divide both by 4

2 litres is 36 km

then times both by 3

6 litres is 108 km

Answer:

X=2

Step-by-step explanation:

3x-12=-4x+2

7x-12=2

7x=14

x=2

Answer:

89

Step-by-step explanation:

Answer:

2.5% , $8608

Step-by-step explanation:

Given data

From the given the expression V = 8000×(1.025)^n

The rate is given as

2.5%

For n= 3

The total amount is

V = 8000 × (1.025)^3

V= 8000*1.076

V= $8608

Hence the final amount is $8608

Answer:

c

Step-by-step explanation:

7^5 means that there are 5 7s eg 2^4 would be 2×2×2×2

Answer:

121

Step-by-step explanation:

If you add them all up, 87+105+135+92= 419

the pentagon is equal to 540 degrees so minus 540 by 419

then you get 121

Answer:

The answer to this equation should be 59.06 I hope I helped:)

Answer:

Yes, she should.

Step-by-step explanation:

5% may not seem like a lot. Lets say she deposits $20 per month. That's $240 a year. Lets also say you keep this for 6 years, you'll have $72 from interest. The more amount she puts in the more she'll gain.

First, converting R percent to r a decimal

r = R/100 = 5%/100 = 0.05 per year,

then, solving our equation

I = 240 × 0.05 × 6 = 72

I = $ 72.00

The simple interest accumulated

on a principal of $ 240.00

at a rate of 5% per year

for 6 years is $ 72.00.

Yes, she should keep  her account open even though she can deposit only a small amount each month.

Since Chenelle has a savings account that earns 5% simple interest each year.

So here we assume that she deposit $20 per month

So for year it should be 240

And the number of years should be 6 so the interest be like 72

Now

I = 240 × 0.05 × 6

I = 72

Hence, Yes, she should keep  her account open even though she can deposit only a small amount each month.

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The x = 3 the quadratic equation D) y = 2x² -3x +7 will have maximum value.

The maximum and minimum values of a function:

The maximum and minimum values are the highest and lowest values that a function can reach over a particular domain.

For example, in a quadratic function, the maximum or minimum value is the highest or lowest point on the graph, respectively.

If a function has a maximum value, it means that the function reaches its highest point at a certain value of x.

On the other hand, if a function has a minimum value, it means that the function reaches its lowest point at a certain value of x.

Here we have

(A) y = x²-6x +19  

At x = 3

y = (3)² - 6(3) + 19  

= 9 - 18 + 19 = 10

(B) y = -4x²+24x -21

At x = 3

y = -4 (3)² + 24(3) - 21

= - 4(9) + 72 - 21

= 15

(C) y= -2x² +20x -49

At x = 3

y = - 2 (3)² + 20(3) - 49

= - 18 + 60 - 49

= - 7

(D) y = 2x² -3x +7    

At x = 3

y = 2(3)³ - 3(3) + 7

= 18 - 9 + 7

= 16

Therefore,

The x = 3 the quadratic equation D) y = 2x² -3x +7 will have maximum value.

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Answer:

X=11

b. 30

c. 30

Step-by-step explanation:

Answer:

The answer is B

Step-by-step explanation:

Step-by-step explanation:

well..this is the answer..using..time formula

The solution set of the given inequality is  {b| b > 20}.

Here we have the inequality (3/4)b > 15 and we want to solve it. To do so, we just need to isolate the variable b.

And to do it, we can work with this like we would do with any equation, we can just multipy both sides by (4/3) so we get:

(4/3)*(3/4)*b > 15*(4/3)

b > 20

Then the solution set can be written as {b| b > 20}

That is the set of all values larger than 20.

Learn more about inequalities at:

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Answer:

sine D = 0.9459

sine E = 0.3243

Step-by-step explanation:

Mathematically, sine is the ratio of the opposite to the hypotenuse

The hypotenuse is the longest side and we have it as 37 in the diagram given

the opposite to angle E is 12

So the sine of E = 12/37 = 0.3243

For D , its opposite is 35

The sine of D = 35/37

sine of D = 0.9459

Answer:

25 (with assumptions)

Step-by-step explanation:

ASSUMING ES=SD and FT=TG, then the difference between EF and ST is the same as the difference between ST and DG.  Since ST - EF = 19 - 13 = 6, then DG - ST = 6 or DG - 19 = 6, add 19 to both sides and DG = 25

Answer:

B

Step-by-step explanation:

A rational function range or possible answer cant be zero since on a rational function we dont want what we call vertical and horizontal asymptote are when y=0 or when x=0 so it can be any real number except 0.

Answer:

0.000725 i think :)

Step-by-step explanation:

   Divide the number by 100 (move the decimal place two places to the left).

   Multiply this new number by the percentage you want to take off.

Answer:tan c

Step-by-step explanation:

Answer:

x+1 SQUARE units

Step-by-step explanation:

Area of a rectangle is height times width or you could just say the length on one side times the length of a side right next to it.

If the rectangle is x+1 units long and 1 unit high, then the answer is (x+1)  x 1  = x +1 because anything times 1 is always just what you started with.

Answer:

x= 2

Step-by-step explanation:

7x = 13x -12

0= 13x-12-7x

12= 13x-7x

12= 6x

2= x

you need to bring all the X's to one side then solve from there

Answer:

x=2

Step-by-step explanation:

7x=13x-12

Subtract 13x from both sides

7x-13x=13x-12-13

-6x=12

Divide both sides by -6

-6x/-6=-12/-6

simplify

x=2

Answer:

Im pretty sure it's 2, but Im not sure

Step-by-step explanation:

Answer:

Step-by-step explanation:

82 - 17 + 53

= 188

Answer:

118

Step-by-step explanation:

Step-by-step explanation:

3x-4y=13

y=-3x-7

3x-4(-3x-7)=13

3x+12x+28=13

15x=-15

x= -1

y= -3x-7 = 3-7= -4

( -1, -4)

They are not the same

The reason why they arent that same is bc they both are in different orders i hope this helps u and may i get brainliest? <3

Step-by-step explanation:

This is well within the mass uncertainty of 0.01% (6×1020 kg), so the estimated value of Earth's mass is unaffected by this factor. Mass loss is due to atmospheric escape of gases. About 95,000 tons of hydrogen per year (3 kg/s) and 1,600 tons of helium per year are lost through atmospheric escape.