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2 years ago

The sum of a number and 5 is squared. The result is 81.

Mathematics

1 answer:

lianna [129]2 years ago

5 0

Answer:

x=4, x=-14

Step-by-step explanation:

With a radical

$(x+5)^2=81$

$\sqrt{(x+5)^2} =\sqrt{81}$

$x+5=9$

$x=4$

$x+5=-9$

$x=-14$

Hope it helped :)

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What is the solution to log (9x)-log 3 = 3?

xeze [42]

Answer:

The solution x = $\frac{e^{3} }{3}$

Step-by-step explanation:

Step 1:-

Given $log(9 x) -log 3 =3$

we have to use formula $log a-log b=log\frac{a}{b}$

$log(9 x)- log 3 = log(\frac{9 x}{3} )$ = $3$

Again by using formula $log a =b$

$a = e^{b}$

so $\frac{9 x}{3} =e^{3}$

step 2:-

$3 x = e^{3}$

$x = \frac{e^{3} }{3}$

The solution of given problem is $x=\frac{e^3}{3}$

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Step-by-step explanation:

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2 years ago

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leonid [27]

Answer:

Option D.

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2 years ago

The dot plots show the heights of boys and girls at a summer camp. Heights of Boys and Girls at Camp 2 dot plots with number lin

allochka39001 [22]

Answer:

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Step-by-step explanation:

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2 years ago

A certain television is advertised as a 50-inch TV (the diagonal length). If the width of

Anvisha [2.4K]

Hello there i hope you are having a great day :) Your question: A certain television is advertised as a 50-inch TV (the diagonal length). If the width of the TV is 14 inches, how many inches tall is the TV?

So you would need to used the Pythagorean theorem that would be

c^2 = a^2 + b^2

So this would equal letter C as The hypotenuse of the right angle and also letter A and B are the stands on the triangle so C would equal 50 inches and A and B would equal 14 inches.

Then the Hard bit so you would be,

1) a^2 = c^2 - b^2

2) a = √c^2 - b^2

3) a = 50^2 - 14^2

4) a = √ 2,500 - 196

5) a = √2,304

6) A = 26

So the answer would be 26 Hopefully ❤

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2 years ago