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2 years ago

I need help Solve the expression when X =5;3(X+2)=

Mathematics

1 answer:

irinina [24]2 years ago

3 0

$\implies {\blue {\boxed {\boxed {\purple {\sf {21}}}}}}$

$\large\mathfrak{{\pmb{\underline{\orange{Step-by-step\:explanation}}{\orange{:}}}}}$

$3 \: ( \: x + 2 \: )$

Plugging in the value $x = 5$ in the above expression, we have

$= 3\:( \: 5 + 2 \: )$

$= 3 \: ( \: 7 \: )$

$= 3 \times 7$

$= 21$

$\sf\pink{PEMDAS\: rule.}$

P = Parentheses

E = Exponents

M = Multiplication

D = Division

A = Addition

S = Subtraction

$\red{\large\qquad \qquad \underline{ \pmb{{ \mathbb{ \maltese \: \: Mystique35☂}}}}}$

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Answer:

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3 years ago

The volume of liquid soap in containers labeled as 7 oz is approximately Normally distributed and has a mean of 7.15 oz and a st

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Answer:

Step-by-step explanation:

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3 years ago

Root 3 cosec140° - sec140°=4<br>prove that<br><br>

Lorico [155]

Answer:

Step-by-step explanation:

We are to show that $\sqrt{3} cosec140^{0} - sec140^{0} = 4\\$

<u>Proof:</u>

From trigonometry identity;

$cosec \theta = \frac{1}{sin\theta} \\sec\theta = \frac{1}{cos\theta}$

$\sqrt{3} cosec140^{0} - sec140^{0} \\= \frac{\sqrt{3} }{sin140} - \frac{1}{cos140} \\= \frac{\sqrt{3}cos140-sin140 }{sin140cos140} \\$

From trigonometry, 2sinAcosA = Sin2A

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