Give the reason for the last statement in the proof.

Answer:

No real solution

Step-by-step explanation:

Given that,

A quadratic equation [tex]50-x^2=0[/tex]

We need to find the value of x.

[tex]50-x^2=0\\\\\text{or}\\\\x^2=50\\\\x=\sqrt{2\times 5\times 5} \\\\=5\sqrt2[/tex]

So, the value of x is [tex]5\sqrt2[/tex]. It has no real solution.

Answer:

if x is the number of miles driven, the equation is 2.25x + 12=30. solved: x = 8 miles

Step-by-step explanation:

First, you make the equation. If x is the number of miles, the price per mile would be 2.25 times x or 2.25x. You also have to add the one time fee of $12, so you have 2.25x + 12. Next, you're trying to find x if it costs $30 total so you would have 2.25x + 12 = 30.

Solving,

2.25x + 12 = 30

subtract 12 from both sides

2.25x = 18

divide both sides by 2.25

x = 8 miles

Answer:

9/12

Step-by-step explanation:

I hope this helps with your question :)

Answer:

9:12 hope this helped may you mark me brainlyiest please and thank you in advanced

Step-by-step explanation:

Answer: y=2x-2=x=1/2y+1   y=2x+9=x=1/2y+-9/2

Step-by-step explanation:

Answer:836

Step-by-step explanation:

&&.$:

Answer:

32

(32 x 3 ) 96

(96 divided by 3) 96

Step-by-step explanation:

tell me if this isnt right and report it, i want u to get it right. :)

Answer:

Jiri is 24 years old.  

Step-by-step explanation:

Let "J" represent Jiri's age.

We could use "P" to represent Pamela's age, but that wouldn't help us in solving this problem.

However, we do know that Pamela's age is 3 times Jiri's age, so we can write Pamela's age to be 3J (3 times Jiri's age.)

We also know that the sum of their ages is 96.

Thus, we have: Jiri's Age + Pamela's Age = 96 years of age.

And: J + 3J = 96

Simplifying, we obtain: 4J = 96

Divide by 4 on both sides: J = 24

Answer:

I think its $0.01?

Step-by-step explanation:

Penny/Cent= €1 = $0.01

I think

Answer:

21:28

Step-by-step explanation:

21/7:28/7=3:4 not 3:5

Answer:

4x^2+12xy+9y^2

Step-by-step explanation:

brainliest

Answer:

No!

Because it doesn’t justify Pythagorean theorem.

D1= sqrtof( (3-2)^2+ (6-3)^2) = sqrtof 13

D2= sqrtof((6-3)^2+(5-6)^2)= sqrtof 10

D3= sqrtof((6-2)^2+(5-3)^2= sqrtof 20

Since D3 is longest, hypotenuse h= D3

Let’s p= D1 and b= D2

Pythagorean theorem is

p^2+b^2=h^2

If you place the value for p,b,h it doesn’t satisfy Pythagorean theorem. Thus, it is not right angle triangle.

Answer:

I don't know how to do

Step-by-step explanation:

i don't know how to do sorry because I very busy

Answer:

one centimeter is 0.393701 inches

Step-by-step explanation:

Answer:

Omg this so ez, 35

Step-by-step explanation:

105 divided by 3 duh, -_-

Answer:

Well 0.5 is the same as 1/2 but I'll try to help.

Step-by-step explanation:

1/9+1/8 is 0.2361. That would honestly be closer to zero but the way that it is worded, it is closer to 1/2 because you are using fractions in the problem. If you were using decimals, I would use 0.5

Answer:

6 3/4

Step-by-step explanation:

to write 54/8 into the mixed number and in the simplest form

we first simpify 54/8 which is 27/4

to convert 27/4 into a mixed number we first see how many times does 4 goes into 27 with the remainder. 4 goes into 27 6 times with the remainder of 3.  4 goes into 27 6 times so, 6 will be the whole part 3 remainder will be the numerator and 4 will be the denominator. like 6[tex]\frac{3}{4}[/tex]

Answer:

by adding or subtracting other angle from sum of angle

Answer:

11 halfs

Step-by-step explanation:

Answer:

A. Right triangle

B. Scalene triangle

C. Equilateral triangle

D. Scalene

Step-by-step explanation:

Step-by-step explanation:

Answer:

The original price of the item is $250.

Step-by-step explanation:

Given that:

Amount of tax added to price of item = $23.50

Percent of sales tax = 9.4% = [tex]\frac{9.4}{100} = 0.094[/tex]

Let,

x be the original price of the item.

0.094 of x = 23.50

0.094x = 23.50

Dividing both sides by 0.094

[tex]\frac{0.094x}{0.094}=\frac{23.50}{0.094}\\x=250[/tex]

Hence,

The original price of the item is $250.

Answer:

2/9 or .22 repeating

Step-by-step explanation:

P(red,red) = [tex]\frac{5}{10}[/tex] · [tex]\frac{4}{9}[/tex] = 2/9 reduced form

Answer:

The sales tax is 2.8 and the total cost is 72.8.

Step-by-step explanation:

4% = 0.04

70.00 × 0.04 = 2.8

70 + 2.8 = 72.8

Answer:

Tax is $2.80

Step-by-step explanation:

When you multiply $70 by 0.04 (4% in decimal form), that is the answer you get, which tells you how much the sales tax is.

Step-by-step explanation:

[tex]1 \frac{3}{5} - \frac{3}{4} x = - 3 \frac{2}{5} [/tex]

[tex] \frac{8}{5} - \frac{3}{4} x = - \frac{17}{5} [/tex]

[tex] \frac{8}{5} + \frac{17}{5} = \frac{3}{4} x[/tex]

[tex] \frac{25}{5} = \frac{3}{4} x[/tex]

[tex] \frac{3}{4} x = 5[/tex]

[tex]x = \frac{20}{3} = 6 \frac{2}{3} [/tex]

Answer: they cant be evaluated

n^p=5^(-2)

Step-by-step explanation:

Answer: 1/25

Step-by-step explanation:

n^p=5^(-2)

5^-2=1/(5^2)

1/(5^2)=1/25

D.

I Hope this helps!

Answer:

Yes, it is

Step-by-step explanation:

Given

[tex]Number = 78[/tex]

Required

Determine if it is a multiple of 6 or not

A number is a multiple of 6 if and only if it can be divided by 6 without remainder.

Can 78 be divided by 6?

To check, we have:

[tex]Check = \frac{78}{6}[/tex]

[tex]Check = 13[/tex]

The result of the division has no remainder.

Hence, it is a multiple of 6

Answer:

Angles are the same, So:

C = G = 125

H = D = 75

A = E = 360 - ( 90+75+125) = 70

To know the ratio between the lengths. Divide 6 by 9 so you get 2/3

So every side of small polygon equals 2/3 times side of big polygon. ( THE PARALLEL ONES )

So:

FG = 7* 2/3 = 14/3

GH = 11 * 2/3 = 22/3

EH = 12 * 2/3 = 8

Answer: as x decreases, the graph of f(x) decreases asympotically to x=0

as x increases, the graph of f(x) increases infinitely

Step-by-step explanation:

Answer:

72 bookmarks

Step-by-step explanation:

69.12÷0.69=72.

Answer: 72 bookmarks

Step-by-step explanation:

0.96b = 69.12

b = 69.12/0.96

b = 72

Answer:

3π square units.

Step-by-step explanation:

We can use the disk method.

Since we are revolving around AB, we have a vertical axis of revolution.

So, our representative rectangle will be horizontal.

R₁ is bounded by y = 9x.

So, x = y/9.

Our radius since our axis is AB will be 1 - x or 1 - y/9.

And we are integrating from y = 0 to y = 9.

By the disk method (for a vertical axis of revolution):

[tex]\displaystyle V=\pi \int_a^b [R(y)]^2\, dy[/tex]

So:

[tex]\displaystyle V=\pi\int_0^9\Big(1-\frac{y}{9}\Big)^2\, dy[/tex]

Simplify:

[tex]\displaystyle V=\pi\int_0^9(1-\frac{2y}{9}+\frac{y^2}{81})\, dy[/tex]

Integrate:

[tex]\displaystyle V=\pi\Big[y-\frac{1}{9}y^2+\frac{1}{243}y^3\Big|_0^9\Big][/tex]

Evaluate (I ignored the 0):

[tex]\displaystyle V=\pi[9-\frac{1}{9}(9)^2+\frac{1}{243}(9^3)]=3\pi[/tex]

The volume of the solid is 3π square units.

Note:

You can do this without calculus. Notice that R₁ revolved around AB is simply a right cone with radius 1 and height 9. Then by the volume for a cone formula:

[tex]\displaystyle V=\frac{1}{3}\pi(1)^2(9)=3\pi[/tex]

We acquire the exact same answer.