Answer:
the length of the ladder is 8.827ft
Step-by-step explanation:
We know that the angle formed between the floor and the stairs is 65 °
the height at which the ladder reaches is 8 feet
between the floor and the house we know that we have a 90 degree angle
so we have a right triangle with its 8 foot wall leg
and an angle of 65 degrees on the floor and the stairs
the length of the stairs in this triangle would represent the hypotenuse
we have the angle and measure of the opposite leg, we want to know the hypotenuse
it is known that the sine of an angle in a rectangular triangle is equal to the opposite leg on the hypotenuse
sin 65° = op / hyp
sin 65° = 8 / hyp
0.9063 = 8 / hyp
hyp = 8 / 0.9063
hyp = 8.827
Seventeen multiply by four minus two equals 66 or 16.5 *4
When we have mixed signs we need to make it a negative. A plus and a minus or a minus and a plus are made into a minus by default.
With that in mind the question would not turn into 1 - 2 =
From here we take the sign of the bigger number. The bigger number would be negative 2 and we put it as the first part of our solution
This next step might be easier with a number line from -5 to 5
We start at positive 1 on the number line. From here we need to go left because when subtracting you go left. We move two spaces to the left. So the one goes to 0 and then it goes to -1
The answer would turn out to be <u>negative one</u><u>(</u><u>-1</u><u>)</u>
<u>1</u><u> </u><u>-</u><u> </u><u>2</u><u> </u><u>=</u><u> </u><u>-</u><u> </u><u>1</u>
HOPE THIS HELPED!!! PLEASE DONT FORGET TO PUT THIS ANSWER AS THE BRAINLIEST. ALSO, LEAVE A HEART AND A 5 STAR TO LET PEOPLE KNOW IN THE FUTURE THAT THIS IS THE CORRECT ANSWER WITH A CORRECT EXPLANATION!! HAVE A GOOD DAY!
Answer:
(-3/4, -7/2)
Step-by-step explanation:
y= −2x − 5
y= 2x − 2
2y = -7
y = -7/2
y= 2x − 2
-7/2 = 2x - 2
2x = -3/2
x = -3/4
(x,y) = (-3/4, -7/2)
