All categories

3 years ago

PLEASE HELP IVE ASKED THIS QUESTION 3 TIMES PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

worty [1.4K]3 years ago

4 0

THEOREM:

h² = p² + b² where h is hypotenuse, b is base and p is perpendicular.

ANSWER:

[3] By pythagorean theorem,

x² = 14² + 9²
x² = 196 + 81
x² = 277
x = √277
x = 16.64 rounded.

[4] By pythagorean theorem,

x² = 32² + 24²
x² = 1024 + 576
x² = 1600
x = √1600
x = 40.

[5] By pythagorean theorem,

(2x)² = 21² – 12.6²
4x² = 441 – 158.76
4x² = 284.24
x² = 284.24/4 = 70.56
x = √70.56
x = 8.4

[6] By tangent property,

7x – 29 = 2x + 16
7x – 2x = 16 + 29
5x = 45
x = 9.

So, WX = 7(9) – 29 = 63 – 29

WX = 34

You might be interested in

PLEASE HELP!! ITS URGENT!!

Iteru [2.4K]

All solutions to the equation 3 cos (5t) + 3 = 2 in the interval from 0 to π will be 0.3821, 0.2462, and 0.8745. Then the correct option is A.

<h3>What is trigonometry?</h3>

The connection between the lengths and angles of a triangular shape is the subject of trigonometry.

The equation is given below.

3 cos (5t) + 3 = 2

By simplifying the equation, then we have

3 cos 5t = -1

cos 5t = -1/3

Then the value of t will be

5t = 1.91063, 1.12096, 4.3725

t = 0.3821, 0.2462, 0.8745

Then the correct option is A.

More about the trigonometry link is given below.

brainly.com/question/22698523

#SPJ1

3 0

2 years ago

How is this solved?

Licemer1 [7]

Count the number of cubes in the first layer.

There is 16 cubes in the first layer.

Now divide the total number of cubes by the cubes per layer:

48 cubes / 16 cubes per layer = 3 layers.

4 0

3 years ago

Plzzzzzzzzzzzzz I am in quiz please

melamori03 [73]

Answer:

X-axis is the black line that goes from right to left

Y-axis is the black line that goes from up to down

the origin is the (0,0)

(-5,7) is move 5 left from the Y axis, 7 up from the X axis.

Step-by-step explanation:

4 0

3 years ago

Write the given expression as an algebraic expression in x. tan(2 cos^-1(x))

miv72 [106K]

$\bf tan\left[ 2cos^{-1}(x) \right]\implies tan\left[ 2cos^{-1}\left( \frac{x}{1} \right) \right]
\\\\\\
\textit{if we say }cos^{-1}\left( \frac{x}{1} \right)=\theta\textit{ that means }tan\left[ 2cos^{-1}\left( \frac{x}{1} \right) \right]\iff tan(2\theta)\\\\
-----------------------------\\\\
cos^{-1}\left( \frac{x}{1} \right)=\theta\implies cos(\theta)=\cfrac{x}{1}\cfrac{\leftarrow adjacent=a}{\leftarrow hypotenuse=c}\\\\
-----------------------------\\\\
$

$\bf \textit{again, using the pythagorean theorem to get the opposite side}
\\\\\\
c^2=a^2+b^2\implies \pm\sqrt{c^2-a^2}=b\implies \pm\sqrt{1^2-x^2}=b
\\\\\\
\pm\sqrt{1-x^2}=b\\\\
-----------------------------\\\\
tan(2\theta)=\cfrac{2tan(\theta)}{1-tan^2(\theta)}\implies tan(2\theta)=\cfrac{2\cdot \frac{\pm\sqrt{1-x^2}}{x}}{1-\left( \frac{\pm\sqrt{1-x^2}}{x} \right)^2}
\\\\\\$

$\bf tan(2\theta)=\cfrac{\frac{\pm2\sqrt{1-x^2}}{x}}{1-\frac{1-x}{x}}\implies 
tan(2\theta)=\cfrac{\frac{\pm2\sqrt{1-x^2}}{x}}{\frac{x-1+x}{x}}
\\\\\\
tan(2\theta)=\cfrac{\pm2\sqrt{1-x^2}}{x}\cdot \cfrac{x}{2x-1}
\implies 
tan(2\theta)=\cfrac{\pm 2\sqrt{1-x^2}}{2x-1}$

6 0

3 years ago

I need to know the answers of 10, 12, and 14

k0ka [10]

Answer:

10: 2

12: 0

14: 24

4 0

3 years ago

PLEASE HELP IVE ASKED THIS QUESTION 3 TIMES PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!​

PLEASE HELP IVE ASKED THIS QUESTION 3 TIMES PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!