MATHEMATICS MIDDLE SCHOOL

Alexei wants to hang a mirror in his boat, and put a frame around it. The mirror and frame must have an area of 19.25 square feet. The mirror is 3 feet wide and 5 feet long. Which quadratic equation can be used to determine the thickness of the frame, x?

Answers

Answer 1

Answer:

Answer:

4.25 sq ft.

Step-by-step explanation:

Answer 2

Answer:

Answer:

The answer is: 4x^2 + 16x − 4.25 = 0

Related Questions

Write an equation for the relationship shown on this graph if the price per ticket is doubled.(1,2), (2,4), (5,10), (8,16)
If sally had 2 apples and gave away 1 , how many does she have left ?
The solution set for the inequality x + 4 ≤ 1/2 (x - 3) includes -11 as an element.
What's the answer Will award brainiest
I need HELP!!!!! 40points

Which of the following shows a relationship of 4,000 as ten times greater than 400a. 44,935
b. 24,941
c.94,465
d. 86,442

Answers

I think the ANWSER might be a not because 400 times 10 is 4000 then if multiply it again by 10 it's 40,000 which is closest 44,935 so a

The circumference of a circle is C centimeters. The diameter of the circle is 13 centimeters.Which expression best represents the value of π?
A) C/6.5
B) 6.5/C
C) C/13
D) 13/C

Answers

Answer:

C) C/13

Step-by-step explanation:

The circumference of a circle is given by the formula

C = pi * d where c = circumference and d is the diameter

The diameter is 13

C = pi *13

Divide each side by 13

C/13 = d

The diameter is C/13

Circumference of the circle is the length of the boundary of the circle. The expression best represents the value of pi is C/13.

Given-

The circumference of the given circle is C centimetres.

Diameter of the given circle is 13 centimetres.

Circumference of the circle

Circumference of the circle is the length of the boundary of the circle.

We know that the circumference of the circle is given by,

$P=2\pi r$

Here r is the radius of the circle. Radius is the twice the diameter of the circle of the circle. That is,

$d=2r$

$r=(d)/(2)$

put the value in the parameter of the circle we get.

$P=2\pi *(d)/(2)$

$p=\pi d$

The value of circumference is C cm and diameter is 13 cm. Put these values to solve it further,

$C=\pi * 13$

Rewrite the equation for the pi, we get,

$\pi =(C)/(13)$

Hence, the expression best represents the value of pi is C/13.

For more about the circumference of the circle follow the link below-

brainly.com/question/5688156

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What is the value of n? -10 = n/-0.2

Answers

-10 = n/-0.2

First, we can change the fraction n/-0.2 into a whole negative. Basically, move the negative sign to the front of the fraction.
$-10 = -(n)/(0.2)$

Second, we can now make our goal to get the variable (n) by itself on one side of the problem. This means we have to move everything over on another side. We can start out by multiplying both sides by 0.2.
$-10 * 0.2 = -n$

Third, let's simplify -10 × 0.2. Whatever the solution, it will be negative. You can solve this by using a calculator, set it up the long way, etc. (-10 × 0.2 = 2)
$-2 = -n$

Fourth, our last step is to multiply both sides by -1. Where did we get the -1? -n can be considered -1, since a variable by itself is 1. After this, we can switch sides.
$n = 2$

Answer: $\fbox {n = 2}$

n=2 2/-0.2 equals -10

Help me out with answe

Answers

I'll do better than that ! I'll show you how to do it, because
the answer is no help if you don;t know how to work it out.

Do you see that little square in one corner of the triangle ? That tells you
that the angle there is 90 degrees, and THAT tells you that the triangle is
a RIGHT triangle. This is a very helpful piece of information, because there's
a rule about the sides of a right triangle that isn't true for any other kind of triangle. The rule is:

   (the longest side)² = (one of the other sides)² plus (the third side)²

Also, the longest side is always the one that doesn't touch the 90-degree angle.

In this triangle in the picture,

-- the longest side is 'A' ... it's 13 .
-- one of the other sides is ' b ' ... it's 12 .
-- the third side is ' C ' ... the one you have to find.

Using the formula up above, you know that

   (13)² = (12)² + C²

Before you go to work on it, subtract (12)² from each side of this equation,
just to make it a little easier, and then you have

   C² = (13)² minus (12)²

And right there is how to figure out the length of ' C '.

I'll give you even more information to help you, and then it's up to you
to finish it and get the answer. Here it is:

   (13)² = 169

   (12)² = 144

Now you have everything you need. Go to it !

To get the answer we can use Pythagorean theorem.
$12^2+c^2=13^2 \n 144+c^2=169$ /-144
$c^2=25 \n c=5$ - its the answer

Write the sum of numbers as a product in their GPS and another sum 44+40

Answers

$GCF(44,40)=4\n\n44+40=4(11+10)$

Enter the solution to the equation in the box.

5(x - 8 ) =7 (x - 4)

Answers

5x-40=7x-28
-12=2x
X=-6 is your answer

Final answer:

The solution to the equation 5(x - 8 ) =7 (x - 4) is x = 6.

Explanation:

To solve the equation 5(x - 8 ) =7 (x - 4), you first need to distribute the numbers outside the parentheses to the terms inside. It leads to : 5*x - 40 = 7*x - 28. To find the value of x, first combine like terms and then isolate x on one side of the equation. By doing so, the equation yields 40 - 28 = 7*x - 5*x, simplifies to 12 = 2x, and thus x = 6.

Learn more about Solving Equations here:

brainly.com/question/29050831

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