William wants to hang a mirror in his room. The mirror and frame must have an area of 50 square feet. The mirror is 5 feet wide and 8 feet long. Which quadratic equation can be used to determine the thickness of the frame, x?3x2 + 13x − 20 = 0
4x2 + 14x − 7 = 0
4x2 + 26x − 10 = 0
2x2 + 2x − 10 = 0

Answers

Answer 1

Answer: The last one. 2x2+2x-10=0

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The height (in feet) of punted football is a function of the time the ball is in the air. The function is defined by h(t) = - 7t ^ 2 + 48t . What is the height of the football after 4 seconds?

Answers

The height of the football after 4 seconds is 80 feet

The height in feet of the punted football is a function of time the ball is in the air.

The function is represented as follows:

h(t) = -7t² + 48t

The height of the football after 4 seconds can be calculated as follows:

h(t) = -7t² + 48t

where

t = 4 seconds

Therefore,

h(4) = 7(4)² + 48(4)

h(4) = -7(16) + 192

h(4) = -112 + 192

h(4) = 80 feet

learn more about function: brainly.com/question/23136370?referrer=searchResults

Answer:

The height of the football after 4 seconds is 80 feet.

Step-by-step explanation:

You know that the height (in feet) of punted football is a function of the time the ball is in the air and it is defined by:

h(t) = -7*t²+48*t

To calculate the height of the ball after 4 seconds, you must replace the time t by the time of 4 seconds:

h(4) = -7*4²+48*4

Solving, you get:

h(4) = -7*16+48*4

h(4) = -112+192

h(4)= 80

The height of the football after 4 seconds is 80 feet.

What is the perimeter, to the nearest hundredth of a unit, of polygon
ABCDE ?

Answers

Step-by-step explanation:

answer is 20.31

I'm positive

How to find length of a triangle given one side and angle

Answers

Answer:

Use trigonometric ratio

Step-by-step explanation:

Since it is one side and angle of the triangle that is given, it is assumed that the triangle is a right-angled triangle

To solve for one of the two unknown lengths, use trigonometric ratio

There are 3 basic trigonometric ratio namely Sine (sin), Cosine (cos) and Tangent (tan)

Sine of the angle given = opposite side ÷ hypotenuse side

Cosine of the angle given = adjacent side ÷ hypotenuse side

Tangent of the angle given = opposite side ÷ adjacent side

Assuming the length given is the hypotenuse side and the angle is inclined to the horizontal

To find the opposite side of the triangle, multiply the hypotenuse side by the sine of the angle given

Brainliest if correct - What is the circumference of this circle? View image for full question.

Answers

Answer:

308 mm

Step-by-step explanation:

The formula for circumference of a circle is $C=2\pi r$

Where C is the circumference

$\pi$ is $(22)/(7)$ , and

r is the radius (given as 49)

Putting them into the formula, we get:

$C=2\pi r\nC=2((22)/(7))(49)\nC=308$

Thus, circumference = 308 mm

Answer:308

Step-by-step explanation:

C=2(22/7)(49)

C=308

What is the vertex of the quadratic function f(x) = (x-2)(x-2)

Answers

Answer:

Hi,

Step-by-step explanation:

$f(x)=(x-8)(x-2)=x^2-4x+16=x^2-4x+4+12=(x-2)^2+12\nVertex\ is \ (2,12)\n$

$f(x)=(x-2)(x-2)=(x-2)^2\nVertex\ is\ (2,0)\n$

Paint is red : blue in a ratio of 2 : 4. If 5 litres of red is used how much blue is used

Answers

so since the ratio of red paint to blue paint is 2:4 and you can simplify 2:4 into 1:2 and because 5 liters of paint is used you would have to multiply the 2 from the simplified ratio by 5 so you could get the answer 2*5 and that equals 10

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