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3 years ago

13

Express each fraction as a decimal 20 25

1 answer:

aleksandrvk [35]3 years ago

4 0

20/25 as a decimal is 0.8

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Darina [25.2K]

Answer:

Para factorizar trinomios de la forma ax2 + bx + c, existen varias formas, a continuación se describirá una de ellas: EJEMPLO. Se multiplica y se divide el trinomio por el coeficiente del primer término. Se resuelve el producto del primero y tercer término dejando indicado el del segundo término.

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3 years ago

PLEASE HELP 10 POINTS

abruzzese [7]

A) 70 pools in total
B) 5:2

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3 years ago

Use the fundamental identities and appropriate algebraic operations to simplify the following expression. (18 +tan x) (18-tan x)

andrezito [222]

Answer:

a) $\left(18+\tan \left(x\right)\right)\left(18-\tan \left(x\right)\right)+\sec ^2\left(x\right)=325$

b) The lowest point of $y=\cos \left(x\right)$ , $0\leq x\leq 2\pi$ is when x = $\pi$

Step-by-step explanation:

a) To simplify the expression $\left(18+\tan \left(x\right)\right)\left(18-\tan \left(x\right)\right)+\sec ^2\left(x\right)$ you must:

Apply Difference of Two Squares Formula: $\left(a+b\right)\left(a-b\right)=a^2-b^2$

$a=18,\:b=\tan \left(x\right)$

$\left(18+\tan \left(x\right)\right)\left(18-\tan \left(x\right)\right)=18^2-\tan ^2\left(x\right)=324-\tan ^2\left(x\right)$

$324-\tan ^2\left(x\right)+\sec ^2\left(x\right)$

Apply the Pythagorean Identity $1+\tan ^2\left(x\right)=\sec ^2\left(x\right)$

From the Pythagorean Identity, we know that $1=-\tan ^2\left(x\right)+\sec ^2\left(x\right)$

Therefore,

$324[-\tan ^2\left(x\right)+\sec ^2\left(x\right))]\\324[+1]\\325$

b) According with the below graph, the lowest point of $y=\cos \left(x\right)$ , $0\leq x\leq 2\pi$ is when x = $\pi$

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3 years ago

What is g(5) for the sequence g={(6,3), (-4,2), (5,0)}

adelina 88 [10]

G(5) for the sequence g = <span>{(6,3), (-4,2), (5,0)} is 0</span>

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3 years ago

Celery is on sale at both Greg's market in the veggie emporium at Greg's market a 5 pound bag of celery cost $2.85 and a veggie

zhenek [66]

Gregs 285/5=57 Emporium 420/7=60

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3 years ago

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