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3 years ago

Assume f(x) = 2x + 8 and g(x) = 5 5. What is the value of (f + g)(3)

Mathematics

1 answer:

Over [174]3 years ago

8 0

Answer:

Step-by-step explanation:

(f + g)(x) = 2x + 8 + 55

= 2x + 63

(f + g)(3) = 2*3 + 63

= 6 + 63

= 69

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Find AB. Round to the nearest tenth.

xz_007 [3.2K]

Answer:

218

Step-by-step explanation:

6 0

3 years ago

The mean age of 5 people in a room is 40 years. A person enters the room. The mean age is now 35. What is the age of the person

crimeas [40]

Answer:

10 years.

Step-by-step explanation:

Let total age of five people be x;

x/5 = 40

x = 40*5

x = 200.

Let age of new person be y;

(200 + y)/ 6 = 35

200 + y = 210

y = 210-200

y= 10.

The age of the new person is 10.

See ya!

Hope it helps!

3 0

3 years ago

Read 2 more answers

The area is ___ square units

12345 [234]

Answer: 358 square units

Steps:
(12 * 20) + (10 * 10) + (6 * 3)
240 + 100 + 18
358

5 0

3 years ago

Introduction to functions which table represents a function

Tanzania [10]

A function table is where each input has actually 1 output

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3 years ago

A square has a diagonal length of 10 ft. Draw a diagram and determine the perimeter of the square.

denpristay [2]

The perimeter of the square is: $20\sqrt2$ ft

Step-by-step explanation:

The picture is attached with the answer.

the diagonal of a square divides it into two right angled-triangles.

We can use one of the triangle to find the length of side as the diagonal will be the hypotenuse of the triangle

Let a be the side of the square, then according to Pythagoras theorem

$d^2=a^2+a^2\\(10)^2 = 2a^2\\2a^2=100$

Dividing both sides by 2

$\frac{2a^2}{2}=\frac{100}{2}\\a^2=50$

Taking Square root on both sides

$\sqrt{a^2}=\sqrt{50}\\a=\sqrt{25*2}\\a=\sqrt{5^2 * 2}\\a=5\sqrt{2}\ ft$

Now,

$P = 4a\\P = 4 * 5\sqrt{2}\\=20\sqrt{2}\ ft$

Hence,

The perimeter of the square is: $20\sqrt2$ ft

Keywords: Perimeter, Pythagoras Theorem

Learn more about Square at:

#learnwithBrainly

5 0

4 years ago