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3 years ago

What value of x makes the equation true?

Mathematics

1 answer:

iVinArrow [24]3 years ago

5 0

Answer:

The answer is 5

Step-by-step explanation:

I had the test, and what you meant was probably: 1/2(4x-5)+5/2=10

but yes, the answer is 5

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Si f(x) = 1/2x^2-(1/4x+3),¿cuál es el valor de f(8)? (3) 27 (2) 17 (4) 33 (1) 11

gavmur [86]

Answer:

Step-by-step explanation:

To evaluate f(8) substitute x = 8 into f(x)

f(8) = $\frac{1}{2}$ × 8² - ( $\frac{1}{4}$ × 8 + 3)

= $\frac{1}{2}$ × 64 - (2 + 3)

= 32 - 5

= 27

5 0

3 years ago

A circle is to be cut from a 12 ft square board. What will be the area, in square feet, of the inscribed circle? Leave your answ

Kazeer [188]

Answer:

3π sq.feet

Step-by-step explanation:

Area of the square = L²

L is the length of the square

Given

Area of the square = 12 ft square

12 = L²

L = √12

L = 2√3 feet

Since the circle is inscribed in the square, the length of the square will be the diameter of the circle;

Area of the circle = πd²/4

Area of the circle = π(2√3)²/4

Area of the circle = 12π/4

Area of the circle = 3π sq.feet

5 0

3 years ago

Use the symbol > to compare -3.5 and -1.5

dybincka [34]

-1.5 is the answer because it is 75

3 0

3 years ago

Find the 53rd term of the arithmetic sequence 27,11, -5

vivado [14]

Answer:

The 53rd term of this arithmetic sequence is -805.

Step-by-step explanation:

The general rule of an arithmetic sequence is the following:

$a_{n+1} = a_{n} + d$

In which d is the common diference between each term, that is, $d = a_{3} - a_{2} = a_{2} - a_{1}$ .

To find the nth term of the sequence, this equation can be written as:

$a_{n} = a_{1} + (n-1)d$

27,11, -5

So $a_{1} = 27, a_{2} - a_{1} = 11 - 27 = -16[/tex[tex]a_{n} = a_{1} + (n-1)d$

$a_{53} = a_{1} + (52)d = 27 + 52*(-16) = -805$

The 53rd term of this arithmetic sequence is -805.

3 0

3 years ago

Erin wants to carpet the floor of her closet. a floor plan of the closet is 4ft x 10ft x 3ft x 6ft. how much carpet does Erin ne

sammy [17]

You have to muliply it all togeather to get the exact answer. 4 times 10 equals 40 40 times 3 equals 120 then 120 times 6 equals 720 and thats the right answer

4 0

3 years ago