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2 years ago

Please fast brainly I give brainliest only to correct answers.

Mathematics

1 answer:

Alla [95]2 years ago

6 0

Answer:

The first and the second ones

Step-by-step explanation:

If you have to multiply both sides of the equation by a negative number in order to solve the inequality....this is what reverses the inequality sign ====> you will have to do this for the first and second ones

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Evaluate 8 • 3^x for (a) x = -2 and (b) x = 3. Write your answers in simplest form.

Levart [38]

Answer: 216

Step-by-step explanation:

6 0

3 years ago

Draw two different shapes with a perimeter of 16 units. What is the area of each shape?

Nadusha1986 [10]

Shape #1: A square.
Every side is 4 units long.
The perimeter is 16 units.
The area is 16 square units.

Shape #2: A rectangle.
The length is 7.9 units.
The width is 0.1 unit.
The perimeter is 16 units.
The area is 0.79 of a square unit.

Shape #3: A circle.
The diameter is (16/π) units. (about 5.093 units)
The perimeter (circumference) is 16 units.
The area is (64/π) square units. (about 20.37 square units)

8 0

3 years ago

Read 2 more answers

Transform the literal equation to solve for f. fg + c = d

wolverine [178]

Answer:

f=(d-c)/g

Step-by-step explanation:

fg+c=d

fg=d-c

f=(d-c)/g

4 0

3 years ago

A, b and c are the sides of a right triangle, where side a is across from angle a, side b is across from angle b, and side c is

Vera_Pavlovna [14]

Find missing length :

a² + b² = c²
c² = 19² + 34²
c² = 1517
c = √1517
c = 38.95 units.

Find missing angle A:

$\dfrac{a}{\sin(a)} = \dfrac{c}{\sin(c)}$

$\dfrac{19}{\sin(a)} = \dfrac{38.95}{\sin(90)}$

$\sin(a) = 0.488$

$a = sin^{-1} (0.488)$

$a = 29.2 \textdegree$

Find Missing B:

$\dfrac{b}{\sin(b)} = \dfrac{c}{\sin(c)}$

$\dfrac{34}{\sin(b)} = \dfrac{38.95}{\sin(90)}$

$\sin(b) = 0.873$

$b = sin^{-1}(0.873)$

$b = 60.8 \textdegree$

Answer: Missing length = 38.95 units ; Missing angles = 29.2° and 60.8°

8 0

4 years ago

Find an expression (where you have to multiply polynomials) to represent the shaded region of #33 and if you could also include

Brrunno [24]

First, find the area of the circle using the formula A=pi r^2.
A=pi (2x+3)^2 = pi(4x^2 + 12x + 9)
Second, find the area of the rectangle inside by multiplying the polynomials.
(X+1)*(3x+2) = 3x^2 + 5x +2
Third, subtract the area of the rectangle from the area of the circle to find the area of the shaded region.
pi(4x^2 + 12x + 9) - 3x^2 + 5x +2 =area of shaded region
Or
(pi (2x+3)^2) - ((X+1)(3x+2)) = area of shaded region

4 0

4 years ago