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1 year ago

7

Mathematics

2 answers:

Fantom [35]1 year ago

8 0

Answer:

1 sick chick FIL a have to be there by the time

inna [77]1 year ago

6 0

Answer:

B is the correct choice.

Explanation:

r = 4sin∅, a = 4, R = 2

$\begin{tabular}{c | l}\theta & r \\ \cline{1-2}\pi /6 & 2\\\pi /3 & 2\sqrt{3}\\\pi /2 & 4\\2\pi /3 & 2\sqrt{3} \\5\pi /6 & 2\\\pi & 0\end{tabular}$

Plot these points.

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Which statement is true? A. .8>.79 B. .4>.40 C. .76>1.2 D. .80>.9

Hitman42 [59]

It is A. Because .8 is the same has saying .80, it is .80>.79, and 80 is greater than 79

7 0

2 years ago

Read 2 more answers

En un triángulo rectángulo A es un ángulo agudo y Sen A = 4/5 ¿Cuál será el valor de Tan A?

Nonamiya [84]

Answer:

$\displaystyle \tan A=\frac{4}{3}$

Step-by-step explanation:

Funciones Trigonométricas

La identidad principal en trigonometría es:

$sen^2A+cos^2A=1$

Si sabemos que A es un ángulo agudo (que mide menos de 90°), su seno y coseno son positivos.

Dado que Sen A = 4/5, calculamos el coseno:

$cos^2A=1-sen^2A$

Sustituyendo:

$\displaystyle cos^2A=1-\left(\frac{4}{5}\right)^2$

$\displaystyle cos^2A=1-\frac{16}{25}$

$\displaystyle cos^2A=\frac{25-16}{25}$

$\displaystyle cos^2A=\frac{9}{25}$

Tomando raíz cuadrada:

$\displaystyle cos\ A=\sqrt{\frac{9}{25}}=\frac{3}{5}$

La tangente se define como:

$\displaystyle \tan A=\frac{sen\ A}{cos\ A}$

Substituyendo:

$\displaystyle \tan A=\frac{\frac{4}{5}}{\frac{3}{5}}$

$\displaystyle \tan A=\frac{4}{3}$

6 0

2 years ago

Solve for X! Please help

WARRIOR [948]

The two given angles are vertical angles which mean they are the same:

9x + 72 = 4x + 112

Subtract 72 from bot sides:

9x = 4x + 40

Subtract 4x from both sides:

5x = 40

Divide both sides by 5:

X = 8

4 0

2 years ago

72 is what percent of 160?

Alchen [17]

72/160=?

Divide 72 by 160 to find the percent.

72/160=0.45

72 is 45% of 160.

I hope this helps :)

5 0

2 years ago

Read 2 more answers

2 x 1’- 2 3/8” = ? Please help

Nat2105 [25]

Answer:

$=-\frac{3}{8}$ is the answer.

Step-by-step explanation:

We have to solve the given expression 2 × 1 - 2 3/8

$2\times 1-2\frac{3}{8}$

$=\frac{2}{1}-\frac{19}{8}$ [Now we take LCF of denominators of both the fractions]

$=\frac{(16-19)}{8}$

$=-\frac{3}{8}$

So the final answer is $=-\frac{3}{8}$

8 0

3 years ago