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3 years ago

In the following math problem, which operation should you fo first? 8+3(7 x 4)- 5 ÷ 2 =

2 answers:

8 0

You would do multiplication first (7*4) because according to PEMDAS or GEMS, parentheses and other grouping symbols are done first.

Rasek [7]3 years ago

3 0

The operation you would do first is 7*4 as according to PEMDAS.

PEMDAS stands for Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction.

In the order of PEMDAS, you would do whatever expression is in the parentheses, and in this case it is 7*4.

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In a box there are n red marbles and three times as many black marbles. There are 36

KATRIN_1 [288]

Answer:

it is 12

Step-by-step explanation:

for n= 36 divided by 3.

7 0

3 years ago

Solve the following equation algebraically: 5x^2=60

aalyn [17]

5x^2=60
(5x^2=60)/5
x^2=12
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x=+/-√12

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3 years ago

Find sinθ if cosθ = <img src="https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B3%7D" id="TexFormula1" title="\frac{2}{3}" alt="\frac{2}{

stepan [7]

Answer:

$sin = \frac{\sqrt{5} }{3}$

Step-by-step explanation:

SOH CAH TOA

Where:

s = sin

c = cos

t = tan

o = opposite

a = adjacent

h = hypotenuse

cos = 2/3 where 2 is adjacent side and 3 is hypotenuse, now find opposite side using a^2 + b^2 = c^2 //c is hypotenuse side

2^2 + b^2 = 3^2

4 + b^2 = 9

b^2 = 9 - 4

b^2 = 5

b = square root (5) = 5^(1/2) //opposite side

sin = O/H

$sin = \frac{\sqrt{5} }{3}$

//Hope it helps.

4 0

4 years ago

What is the true solution to the logarithmic equation below?

Oliga [24]

Answer:

x = 2

Step-by-step explanation:

Given:

log ₄ (2x) = 1

Solving for x:

2x = 4¹
2x = 4
x = 2

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3 years ago

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Answer:

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2 years ago