What is the value of 17 plus 8 minus 6 times 2?

Answers

Answer 1

Answer: $17+8-6*2\n 17+8+(-12)\n 25-12\n 13$

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How do you factor 3x^2-7x-2

Answers

3x^2-7x-2

doesn't factor

You can not factor this

I hope that's help !

Evaluate the log without a calculator ( Show your work )

$log_(25) (1)/(5)$

Answers

Answer:

$\log_(25)((1)/(5))=-(1)/(2)$

Step-by-step explanation:

Let

$\log_(25)((1)/(5))=x$

We rewrite as an exponential equation to obtain;

$(1)/(5)=25^x$

We rewrite both sides of the equation as an index number to base 5.

$5^(-1)=5^(2x)$

Since the bases are the same, we equate the exponents to obtain;

$-1=2x$

Divide both sides by 2;

$x=-(1)/(2)$

log 1/5 base 25
25^x=1/5
thinking of number that satisfy it
it is =-1/2

A painter leans a 20-ft ladder against a building. The base of the ladder is 12 ft from the building. To the nearest foot, how high on the building does the ladder reach?

Answers

Answer:

The height of the building is 16 ft.

Step-by-step explanation:

It is given that a painter leans a 20-ft ladder against a building. The base of the ladder is 12 ft from the building.

It means the base of the right angled triangle is 12 ft and the hypotenuse is 20 ft.

Let the height of the building be x.

Using Pythagoras theorem,

$hypotenuse^2=base^2+perpendicular^2$

$(200)^2=(12)^2+x^2$

$x^2=400-144$

$x^2=256$

Taking square root both sides.

$x=√(256)$

$x=16$

Therefore the height of the building is 16 ft.

the ladder would reach 16 feet on the building.
Pythagorean theorem helps find this answer.

Does the word each mean multiply

Answers

no, each does not mean to multiply, but it also depends on the question

If two angles are supplementary and one of them is 30 , what is the measurement of the second angle? A. 180
B. 90
C. 60
D. 150

Answers

You just need to know the definition of suplementary angles. Two angles are suplementary if the sum 180°. So, you now can easily deduct that the unkonwn angle is such that when sumed to 30° the result is 180° => x + 30 = 180=> x = 180 - 30 => x = 150°. And the answer is the option D) 150.

Answer: Hello there!

If you have a line (with a plane angle of 180°) and a segment that cuts the line, the two angles generated by the line and the segment are supplementary, and the sum of them should be equal to 180°

if one of the angles is 30°, then the other angle should be:

180° - 30° = 150°

then the right answer is option D.

Plzz help! Can you also explain. ps. It’s not 4