Find the circumference and the area of a circle with diameter 9cm. Use the value 3.14 for pie and do not round your answer. Be sure to include the correct units in your answer

Answer:

Step-by-step explanation:

Given quadratic equation is,

y = -2x² + 4x + 5

y = -2(x² - 2x) + 5

y = -2(x² - 2x + 1 - 1) + 5

y = -2(x² - 2x + 1) + 2 + 5

y = -2(x - 1)² + 7

This equation is in the vertex form of the quadratic equation,

y = a(x - h)² + k

where, (h, k) is the vertex of the parabola.

Therefore, vertex of the given quadratic equation is (1, 7)

The equation can be rewritten as y = -2(x - 1)² + 7.

Therefore, the vertex of the graph of the function y = -2x² + 4x + 5 in the xy-coordinate plane is located at the point (1, 7).

Answer:

19 h

Step-by-step explanation:

The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.

The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115

Answer:

It actually depends on what city you picked. Pls tell me what the city and boat is and the problems you need help with

Step-by-step explanation:

So what i said on top, please comment to this post

Answer:

youve got the answers?

Step-by-step explanation:

Answer:

1/5 decimal: 0.2

3/20 decimal: 0.15

8/25 decimal:0.32

3/50 decimal:0.06

9/20 decimal: 0.45

Answer:

0.2

0.15

0.32

0.06

0.45

Step-by-step explanation:

Turn the fractions into decimals by changing the place value

Answer:

42.1

Step-by-step explanation:

tan 39 = 52 / x

x = 52 tan39

x = 42.1

Answer

Step-by-step explanation:

The odds of picking a good one are 5/200 or 0.025.

If there are 800, then the odds are 20/800 or, 0.025

So, most likely there would be  780/800 good ones.

Answer:

97.5%; 780 apples

Step-by-step explanation:

See attached photo

Answer:

Step-by-step explanation:

Let the 2 consecutive integers be x and x+1.

x²+(x+1)²=1684

x²+(x+1)(x+1)=1684

x²+x²+x+x+1=1684

2x²+2x-1683=0

Using quadratic formular

Answer:

Dont say your doing a test, brainly is strict and will delete your question because its timed

Step-by-step explanation:

Answer:

I'm pretty sure it's 10.905

Answer:

4,0

Step-by-step explanation:

Find where the two lines intercept at.

They both intercept at 4,0

Answer and Step-by-step explanation:

The solution is (4, 0)

This is because the graphs intersect at this point, which would be their solution.

#teamtrees #WAP (Water And Plant)

Answer:

need more information there should be a X and y axis to answer the questions.

The number of people that bought T-shirt is 2070 people

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%"

To find the percentage of those that bought the T-shirt

We find 45% of 4,500

45/100 * 4500

2070

Hence, 2070 people out of the 4,500 people who attend the rock concert bought the T-shirt

Learn more about percentage at:https://brainly.com/question/24304697

#SPJ1

Answer:

100.44

Step-by-step explanation:

8%= 0.08

0.08*93 = 7.44

93+7.44 = 100.44

Answer:

100.44

Step-by-step explanation:

0.08 x 93 = 7.44

93 + 7.44 = 100.44

Answer:

multiply both sides of the equation by 3

Step-by-step explanation:

When your trying to solve for a variable, do steps where you are isolating that variable.

In the equation given, to isolate b, get rid of the division first and we can do that through multiplication.

Answer:

11

Step-by-step explanation:

9+2 = 11

9514 1404 393

Answer:

  1/(3x) =(x -2)/(4x^2 +9)

Step-by-step explanation:

The denominator cannot be factored further, so the final form will be ...

  A/(3x) + (Bx +C)/(4x^2 +9)

The value of this is ...

  (A(4x^2 +9) +(3x)(Bx +C))/(3x(4x^2 +9))

  = ((3B+4A)x^2 +3Cx +9A)/(3x(4x^2 +9))

Equating coefficients gives ...

  3B+4A = 7

  3C = -6   ⇒   C = -2

  9A = 9   ⇒   A = 1

Using the found value of A, we find ...

  3B +4 = 7   ⇒   B = 1

Then the decomposition is ...

  [tex]\dfrac{7x^2-6x+9}{3x(4x^2+9)}=\boxed{\dfrac{1}{3x}+\dfrac{x-2}{4x^2+9}}[/tex]

Answer:

a

Step-by-step explanation:

took test

Answer:

The answer is 16+18d

Answer:

2x - 1

Step-by-step explanation:

Simplify. Note that you cannot combine a term with a variable with a constant term. Divide 5 from both terms in the parenthesis:

1/5(10x - 5) = (10x - 5)/5

Divide 5 from both terms in the parenthesis:

10x/5 = 2x

-5/5 = -1

2x - 1 is your answer.

~

Answer:

1/5 (10x - 5)

[tex]taking common \: 5 \: from (10x - 5) \\ 1 \div 5 \times 5(2x - 1)[/tex]

2x-1 is your answer

Answer:

45 ounces

Step-by-step explanation:

Answer:

45 ounces

Step-by-step explanation:

Each pound is 16 ounces so

2 pounds = 32 ounces

32 + 13 = 45

Answer:

is that math?

Step-by-step explanation:

Look at the photos below

(These were photos from my math class two years ago)

Answer:

y= \frac{15}{7}x + 7

not sure if that will work so

y = 15x/7x + 7

Step-by-step explanation:

Answer:

$44.44444444

Step-by-step explanation:

So as per question employees get 10% discount of the discounted price. So our equation would be considering discounted price = x

=> x- 10x/100 = 40 => 100x-10x/100 = 40 => 90x = 4000 => x= $44.4444

Answer:

Step-by-step explanation:

A system of linear equations usually has a single solution, but sometimes it can have no solution (parallel lines) or infinite solutions (same line).

Exact Form:

−10/3

Decimal Form:

−3.3...

Mixed Number Form:

−3 1/3

Answer:

-10/3

Step-by-step explanation:

Answer:

it is Isoscales triangle

Step-by-step explanation:

it is Isoscales triangle because Isoscales triangle is the triangle having atheist two sides or angle equal and in that question there is two 75

[tex] \huge\sf \pink{A} \sf \red{n} \sf \orange{s} \sf \blue{w} \sf \green{e} \sf \purple{r}[/tex]

It is an isosceles triangle.

[tex] \huge\sf \pink{R} \sf \red{e} \sf \orange{a} \sf \blue{s} \sf \green{o} \sf \purple{n}[/tex]

Because it's 2 of sides are equal and one is different.

[tex] \huge\sf \pink{V} \sf \red{e} \sf \orange{r} \sf \blue{i} \sf \green{f} \sf \purple{i} \sf \red{c} \sf \pink{a} \sf \blue{t} \sf \green{i} \sf \purple{o} \sf \orange{n}[/tex]

A triangle with two sides equal is known as isosceles triangle.

This triangle have two sides with equal length.