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2 years ago

If log, 7 -3 what is the value of x? A. 21 B. 3V7 C. 37 D. 343

Mathematics

1 answer:

gregori [183]2 years ago

4 0

Answer:

Step-by-step explanation:

logₓ 7 = 3

x³ = 7

Take cube root both sides

$x= \sqrt[3]{7}$

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Pls help me in this i really need help :( :)

Andrews [41]

Hello and Good Morning/Afternoon:

Let's take this problem step-by-step:

First off, let's write the line in point-slope form:

$\rm \hookrightarrow (y-y_0)=m(x-x_0)$

(x₀, y₀) any random point on the line
'm' is the value of the slope

Let's calculate the slope:

$\rm \hookrightarrow Slope = \frac{y_2-y_1}{x_2-x_1}$

(x₁, y₁): any random point on the line ⇒ (-2, -6)
(x₂,y₂): any random point on the line that is not (x₁, y₁) ⇒ (2, -3)

$\rm \hookrightarrow slope = \frac{-3--6}{2--2} =\frac{3}{4}$

Now that we found the slope, let's put it into the point-slope form

⇒ we need (x₀, y₀) ⇒ let's use (2,-3)

$(y-(-3))=\frac{3}{4} (x-2)\\y+3=\frac{3}{4} (x-2)$

The equation, however, could also be put into 'slope-intercept form'

⇒ gotten by isolating the 'y' variable to the left

$y = \frac{3}{4}x-\frac{9}{2}$

Answer: $y = \frac{3}{4}x-\frac{9}{2}$ or $y+3=\frac{3}{4} (x-2)$

*Either equations work, put the one that you are the most familiar with

Hope that helps!

#LearnwithBrainly

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1 year ago

Eight more than the product of two and a number x.

olchik [2.2K]

8+2x is the answer. The rest of these characters is for the >20 rule

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2 years ago

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If the fraction 396\x-10 is equivalent to -22. find the value of x.

Vsevolod [243]

396/x - 10 = -22 396/x = -22 + 10 396/x = -12 X = -396/12 X = -33

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2 years ago

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Ok, I have a weird but easy assignment for school. Just tell me your age and about how many hours per day u are online. Thank yo

lesya [120]

My age is 14 and I spend about 4 hours online per day.

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2 years ago

The diagram above shows a circle with centre O and radius 25 cm.

Salsk061 [2.6K]

Answer:

Step-by-step explanation:

Notice that KL = LM and PQ = QR since OL and OQ are perpendicular to both KM and PR.

It follows that QR = (1/2) PR = 20 cm. We also know that MR = 21.

Now in order to solve the problem we just need OQ=OL

$OQ^2=OR^2-QR^2= 25^2-20^2 =225\\OQ=15$

Therefore the perimeter of the pentagon is

$OL+LM+MR+RQ+Q)\\= 15+20+21+20+15= 91$

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3 years ago