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3 years ago

5x 8 = 23 what is x in the equation

Mathematics

1 answer:

ivann1987 [24]3 years ago

6 0

Hope this helps x= 23/40

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Factor completely, then place the answer in the proper location on the grid. 6x ^2 - 3x - 30

seraphim [82]

Factor out the GCF first
3(2x² - x - 10)
3(2x - 5)(x + 2)

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4 years ago

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Meiling has 1/ 1 4 liter of orange juice. She drinks 1/3 liter how much orange juice does she have left

olga_2 [115]

Litres left can be solve as shown below

$\begin{gathered} 1\frac{1}{4}\text{ - }\frac{1}{3} \\ using\text{ the LCM, we have} \\ \frac{5}{4}-\frac{1}{3} \\ \frac{15\text{ - 4 }}{12}=\frac{11}{12} \end{gathered}$

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1 year ago

Cos^2(2theta)+ 2cos(2theta)+1=0

Tema [17]

Answer:

θ = π n + π/2 for n element Z

Step-by-step explanation:

Solve for θ:

1 + 2 cos(2 θ) + cos^2(2 θ) = 0

Write the left hand side as a square:

(cos(2 θ) + 1)^2 = 0

Take the square root of both sides:

cos(2 θ) + 1 = 0

Subtract 1 from both sides:

cos(2 θ) = -1

Take the inverse cosine of both sides:

2 θ = 2 π n + π for n element Z

Divide both sides by 2:

Answer: θ = π n + π/2 for n element Z

4 0

3 years ago

2 Points

zhuklara [117]

B is the answer to this

8 0

3 years ago

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Find the indicated limit, if it exists.

jok3333 [9.3K]

For the limit to exist, the limits from either side must also exist and be identical. We have

$\displaystyle\lim_{x\to2^-}f(x)=\lim_{x\to2}(x+3)=2+3=5$

$\displaystyle\lim_{x\to2^+}f(x)=\lim_{x\to2}(3-x)=3-2=1$

Since the limits do not match, the overall limit does not exist.

6 0

3 years ago