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3 years ago

THE CORRECT ANSWER WILL GET BRANLIEST

Mathematics

1 answer:

Masteriza [31]3 years ago

5 0

Answer:

Step-by-step explanation:

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Which expression is equivalent to -3x + 9?

Olenka [21]

Answer:

Step-by-step explanation:

You use the distributive Property

-3(x-3)

-3x+9

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3 years ago

Read 2 more answers

What is 1,000 to the power of 4?

quester [9]

The answer to what is 1,000 to the power of 4 is 1,000,000

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3 years ago

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:

<u>Funciones Trigonométricas</u>

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

3 years ago

Help pls!! .................................

tekilochka [14]

Answer:

Step-by-step explanation:

B no b/c 7 miles is 12,320 yds and 40 times around route is only 9600 yds... keep running cyrus.. :P

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3 years ago

A number plus three and seven-tenths<br> Write as an algebraic expression

jasenka [17]

Answer:

x+6.3

Step-by-step explanation:

x+6.3

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

4 0

3 years ago