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2 years ago

Find the measure of and angle between o degrees and 360 degrees coterminal with an angle of 399 degrees in standard position

Mathematics

1 answer:

horrorfan [7]2 years ago

5 0

Answer:

39 degrees.

Step-by-step explanation:

We want an angle x such that 0 < x < 360 and angle x is coterminal with an angle of measure 399 degrees.

so x = 399 - 360 = 39 degrees

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Answer ,how to do it.

guapka [62]

Answer:

The system has two solutions:

x₁ = 5 ⇒ y₁ = -10

x₂ = -2 ⇒ y₂ = 11

Step-by-step explanation:

Let's solve the system of equations, this way:

y = -3x + 5

y = x ² - 6x - 5

Replacing y in the 2nd equation:

y = x ² - 6x - 5

-3x + 5 = x ² - 6x - 5

x ² - 3x - 10 = 0

Solving for x, using the quadratic formula:

(3 +/- √(9 -4 * 1 * -10))/2 * 1

(3 +/- √9 + 40)/2

(3 +/- √49)/2

(3 +/- 7)/2

x₁ = 10/2 = 5

x₂ = -4/2 = -2

x₁ = 5 ⇒ y₁ = -10

x₂ = -2 ⇒ y₂ = 11

As we can see the system has two different solutions

8 0

3 years ago

Write the sentences as proportion. Twelve hundredths is to three as twenty-four hundredths is to eight

ValentinkaMS [17]

Answer:

see the explanation

Step-by-step explanation:

Remember that

A proportion is the ratio (quotient) between two numbers

Twelve hundredths to three is ----> $\frac{0.12}{3}$

Twenty-four hundredths to eight ----> $\frac{0.24}{8}$

therefore

Twelve hundredths is to three as twenty-four hundredths is to eight

$\frac{0.12}{3}=\frac{0.24}{8}$

Note The proportion is not true

3 0

2 years ago

Frank needs 3.6 meters of ribbon to wrap gifts for friends this year. If each spool contains 90 cm of ribbon,how many spools wil

erastovalidia [21]

Answer:a lot

Step-by-step explanation:

3 0

2 years ago

How do you find a inverse of a equation

zmey [24]

It is opposite of what the equation is saying. Like if you had to add you would subtract or if you multiply you would divide.

3 0

3 years ago

Read 2 more answers

Can someone step by step explain the answer to me please and thank u

True [87]

First

angle in front of c is 30°, so hypotenuse is equal to 2c

it's right triangle, so let's use Pythagorean theorem\

$(2c)^2=c^2+4^2\\4c^2=c^2+16\\3c^2=16\\\\c^2=\dfrac{16}{3} \\\\c=\dfrac{4}{\sqrt{3} } =\dfrac{4\sqrt{3} }{3 }$

Second

b - the base of the triangle, angles at the base are equal ⇒ cathets are equal

it's right triangle, so let's use Pythagorean theorem

$b^2=7^2+7^2\\b^2=49+49\\b=\sqrt{2\times49} =7\sqrt{2}$

3 0

2 years ago