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2 years ago

5. Solve log2x+ log12= 3. Round to the nearest hundredth if necessary. (1 point)

Mathematics

2 answers:

Serggg [28]2 years ago

5 0

Log 2x + log 12 = 3log 2x = 3 - log 12log 2x = 3 - 1.08log 2x = 1.922x = 10^1.922x = 83.33x = 83.33/2x = 41.67

nikitadnepr [17]2 years ago

4 0

1) log_8a-log_82

2) 2.089

3) 3.57 decibels

4) 0.82

5) 41.67

6) In x^2/c^5

7) 21,405 mowers

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Solution :

Let :

X = number of overtime hours

S = total weekly salary

S = $12 \times 40 + 18 \times X$

S = 480 + 18X

E(S) = $480 + 18 \times E(X)$

$E(S) = 480 + 18 \times 15$

= 750

Mean of S = 750

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Var(S) = $18^2 \times 4^2$

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2 years ago

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andriy [413]

Answer:

$\large\boxed{S.A.=96\ cm^2}$

Step-by-step explanation:

We have:

(1) two trapezoids with bases b₁ = 7cm and b₂ = 5cm and the height h = 4cm

(2) three rectangles 3 cm × 7 cm, 3 cm × 4 cm and 3 cm × 5 cm.

The formula of an area of a trapezoid:

$A=\dfrac{b_1+b_2}{2}\cdot h$

Substitute:

$A=\dfrac{7+5}{2}\cdot4=24\ cm^2$

Calculate the areas of the rectangles:

$A_1=(3)(7)=21\ cm^2\\\\A_2=(3)(4)=12\ cm^2\\\\A_3=(3)(5)=15\ cm^2$

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2 years ago

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Zina [86]

F(x) is 25-x^
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3 years ago

If ex + e*-1= 2, then x =..

lianna [129]

<em>Note: Your equation seems a little unclear. But, I am assuming that your equation is:</em>

$e^x\:+\:e^{-1}=\:2$

<em>Because my solution would still clear your concept about this topic, no matter what the question is.</em>

Answer:

Please check the explanation.

Step-by-step explanation:

Given the equation

$e^x\:+\:e^{-1}=\:2$

subtract $e^{-1}$ from both sides

$e^x+e^{-1}-e^{-1}=2-e^{-1}$

$e^x=2-\frac{1}{e}$

$\ln \left(e^x\right)\:=\ln \:\left(2-\frac{1}{e}\right)$

$\:x\cdot ln\left(e\right)=\ln \:\:\left(2-\frac{1}{e}\right)$

$\:x\cdot 1=\ln \:\left(2-\frac{1}{e}\right)$ ∵ $\:\:\ln \left(e\right)=1$

$x=\ln \:\left(2-\frac{1}{e}\right)$

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2 years ago

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Lapatulllka [165]

Answer:

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Step-by-step explanation:

It has gone from:

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|_____| |____| |_____|

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So the continued pattern would be:

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If you wanted to go to the negatives:

0, -3, -6, -9, -12, and so on.

I hope this helps!

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

<u></u>

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3 years ago