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3 years ago

Let sin ? = 4/5, and cos ? = ?3/5, and find the indicated value

1 answer:

4 0

Let the unknown angle be x.
That is
sin x = 4/5
cos x = 3/5

By drawing a right triangle in the first quadrant,
hypotenuse = 5
Adjacent side = 3
opposite side = 4

That is tan x = 4/3
From the calculator,
x = arctan(4/3) = 53 deg (nearest integer)

Answer: 53 deg. (nearest integer)

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Help!!!! This is geometry, the picture has the question!

skad [1K]

Answer:

LN = 16

Step-by-step explanation:

MO bisects LN into two equal parts (If you see a triangle MNL, the line in the middle 5y - 8 is a median. This means x + 6 = 4x)

x + 6 = 4x

3x = 6

x = 2

Substitute x

LN = 2 + 6 + 8 = 16

LN = 16

Hope this helps :)

Have a nice day!

7 0

3 years ago

so billy has 10 apples if he subtracts it by 6 then times it by 3 then divides it by 2 what does he get?

geniusboy [140]

Answer:

Step-by-step explanation:

3 × (10 - 6) ÷ 2 =?

The strategy that we are using here is PEMDAS:

First, you subtract 6 from 10 which is 4. 10 - 6 =4

Next, you multiply 4 by 3. 4 × 3 = 12

Then, you divide 12 by 2. 12 ÷ 2 = 6

Your answer is 6.

Your welcome. Showed my work below.

5 0

3 years ago

Help Please nothing i get is the right answer

Sonja [21]

9514 1404 393

Answer:

L = 882/121 feet

Step-by-step explanation:

Set the appropriate variables in the equation to the given values and solve for the unknown.

$T=2\pi\sqrt{\dfrac{L}{32}}\\\\3=2\left(\dfrac{22}{7}\right)\sqrt{\dfrac{L}{32}} \qquad\text{fill in given values}\\\\ \dfrac{3\cdot7}{44}=\sqrt{\dfrac{L}{32}} \qquad\text{multiply by $\dfrac{7}{44}$}\\\\ \left(\dfrac{21}{44}\right)^2=\dfrac{L}{32}\qquad\text{square both sides}\\\\ \dfrac{32\cdot441}{1936}=L \qquad\text{multiply by 32}\\\\ \boxed{L=\dfrac{882}{121}}\qquad\text{reduce the fraction}$

_____

Additional comment

That's about 7.3 feet. (You can compare this to what you know about the time it takes for a cycle when swinging on a swing set.)

3 0

3 years ago

In the diagram below, BD is parallel to Y. What is the value of y?

Serjik [45]

The answer is A. 67 , hope this helps

5 0

3 years ago

The model of a trinomial is shown.

galben [10]

The factors of the trinomial based on the information given include:

C. x – 7

E. x + 2

<h3>What is a trinomial?</h3>

It should be noted that a trinomial is an algebraic expression that has three non-zero terms. Here, the examples of a trinomial expression: x + y + z is a trinomial in three variables x, y and z. Also, 2a² + 5a + 7 is a trinomial in one variables.

In this case, the algebra tile configuration has 0 tiles are in the Factor 1 spot and 0 tiles are in the Factor 2 spot. 24 tiles are in the Product spot: 1 is labeled + x squared, 7 are labeled negative x. Here, the trinomial is x² - 5x - 14.

The factors will be:

x² - 5x - 14.

x² + 2x - 7x - 14

x(x + 2) - 7(x + 2)

= (x + 2)(x - 7)

A polynomial with three terms is called a trinomial.

In conclusion, the correct options are C and E.

Learn more about trinomial on:

brainly.com/question/11929575

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6 0

2 years ago