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3 years ago

Solve the inequality and graph the solution, please put it on a number line if you can.

Mathematics

1 answer:

Sergio039 [100]3 years ago

6 0

Answer:

x is greater than or equal to 40

Step-by-step explanation:

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Solve for x in degrees: sinx=cos(48) without a calculator

Licemer1 [7]

We are given with the mathematical expression <span>sinx=cos(48) and is asked in the porblem to determine the value of variable x. In this case, we solve first cos 48 which is equal to -0.64. to determine x, we use inverse sin, that is sin-1 (-0.64) = x; x= 42 degrees. x is equal also to 90-48 according to complementary postulate.</span>

5 0

3 years ago

Cameron has $200. He wants to buy a diploma frame for $44. He also wants to buy kente graduation stoles for himself and his frie

miskamm [114]

Answer:

Step-by-step explanation:

200-44=156

156/2=6.5

Round 6.5 to 6.

8 0

3 years ago

Choose the letter of the equation for<br> the graph.

andreev551 [17]

The graphed trigonometric function is the one in option a.

<h3>Which is the equation of the graph?</h3>

The key parts that we can see on the graph are:

The midline is y = 1.

From this we know that the correct option is either a or b.

at x = 0, f(x) = 0.

Now we can evaluate options a and b in x = 0 and see which one is equal to zero.

for a:

y = sin(0 - pi/2) + 1 = sin(-pi/2) + 1 = -1 + 1 = 0

for b:

y = cos(0 + pi/2) + 1 = 0 + 1 = 1

Then we can see that option a is the correct option.

If you want to learn more about trigonometric functions:

brainly.com/question/8120556

#SPJ1

4 0

2 years ago

Geometry please help

timurjin [86]

What do you need help with? Please include description or, add a photo of the problem so others can see whether they can help out or not.

6 0

3 years ago

What much expression represents a rational number?

Pie

Answer:

$\displaystyle \frac{2}{7}+\sqrt{121}$

Step-by-step explanation:

<u>Rational Numbers</u>

A rational number is any number that can be expressed as a fraction

$\displaystyle \frac{a}{b}, \ b\neq 0$

for a and b any integer and b different from 0.

As a consequence, any number that cannot be expressed as a fraction or rational number is defined as an Irrational number.

Let's analyze each one of the given options

$\displaystyle \frac{5}{9}+\sqrt{18}$

The first part of the number is indeed a rational number, but the second part is a square root whose result cannot be expressed as a rational, thus the number is not rational

$\pi + \sqrt{16}$

The second part is an exact square root (resulting 4) but the first part is a known irrational number called pi. It's not possible to express pi as a fraction, thus the number is irrational

$\displaystyle \frac{2}{7}+\sqrt{121}$

The square root of 121 is 11. It makes the whole number a sum of a rational number plus an integer, thus the given number is rational

$\displaystyle \frac{3}{10}+\sqrt{11}$

As with the first number, the square root is not exact. The sum of a rational number plus an irrational number gives an irrational number.

Correct option:

$\boxed{\displaystyle \frac{2}{7}+\sqrt{121}}$

6 0

3 years ago