All categories

3 years ago

What is the value of x

Mathematics

2 answers:

natali 33 [55]3 years ago

7 0

The answer to your question is

x=31

Tanzania [10]3 years ago

6 0

Answer:

x=31

Step-by-step explanation:

You might be interested in

Perform the subtraction and use the fundamental identities to simplify.<br> cotx-(csc^2x)/(cotx)

Brilliant_brown [7]

$\bf cot(x)-\cfrac{csc^2(x)}{cot(x)}\\\\
-----------------------------\\\\
recall\qquad 
\begin{array}{llll}
\textit{Pythagorean Identities}
\\ \quad \\
sin^2(\theta)+cos^2(\theta)=1
\\ \quad \\
\boxed{1+cot^2(\theta)=csc^2(\theta)}
\\ \quad \\
1+tan^2(\theta)=sec^2(\theta)
\end{array}\\\\
-----------------------------\\\\
cot(x)-\left[ \cfrac{1+cot^2(x)}{cot(x)} \right]\impliedby \textit{distributing the denominator}
\\\\\\
$

$\bf cot(x)-\left[ \cfrac{1}{cot(x)}+\cfrac{cot^2(x)}{cot(x)} \right]\implies cot(x)-\left[ tan(x)+cot(x) \right]
\\\\\\
cot(x)-tan(x)-cot(x)\implies -tan(x)$

3 0

4 years ago

Two ride-sharing companies are competing for business in a large city. To help customers compare the companies, a data scientist

Solnce55 [7]

Solution :

Given :

$n_1 = n_2 = 40$

$\overline X_1 = 18$

$S_1 = 4$

$\overline X_2 = 12$

$S_2 =10$

So we want to test :

$H_0 : \mu_1=\mu_2$ vs $H_1 : \mu_1 \neq \mu_2$

a). For 98% confidence interval :

$=\left((\overline X_1 - \overline X_2) \pm Tn_1+n_2-2, \alpha / 2 \sqrt{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}}\right)$

$=\left((18-12) \pm 2.375 \sqrt{\frac{4^2}{40}+\frac{10^2}{40}}\right)$

$=(6 \pm 4.0445)$

= (1.956, 10.045)

7 0

3 years ago

a closed umbrella casts a shadow when the sun shines at a 16.3° angle to the ground. how tall is the top of the umbrella to the

riadik2000 [5.3K]

ANSWER: Approximately 7 FEET
WORK-
This is a simple trigonometric equation. We have the distance from the shadow and the angle measure. All you need to do is find the height. Using the acronym SOH CAH TOA
we can see we need to use the tangent
tan 16.3°= x/24
You find the tangent of 16.3° and then multiply by 24 and you find the height of the umbrella is around 7 feet.

5 0

3 years ago

Ondi believes that you must get a a0 answer when multiplying numbers.

chubhunter [2.5K]

Answer:

You only get 0 if you multiply by 0

Step-by-step explanation:

1 x 5 = 5

4 x 0=0

1234 x 0 = 0

6 0

4 years ago