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kenny6666 [7]
3 years ago
11

="absmiddle" class="latex-formula">
Mathematics
1 answer:
vodka [1.7K]3 years ago
7 0
Isolate the radical, then raise each side of the equation to the power of its index.
Exact Form:
x
=
3
+
√
5
2
,
3
−
√
5
2
x
=
3
+
5
2
,
3
-
5
2

Decimal Form:
x
=
2.61803398
…
,
0.38196601
…
You might be interested in
120% of a number is 45 find the number
Bezzdna [24]
Hello,

Here is your answer:

The proper answer to this question is "37.5".

Your answer is 37.5!

If you need anymore help feel free to ask me!

Hope this helps!
3 0
3 years ago
URGENT
Ivan

This is a question of proportions:

First we can work out how many feet it goes up for each feet he steps back:

5.5/6 ft per each feet he steps back.

Now we can multiply this by the amount of ft back the cliff is:

(5.5/6)*30 = 27.5 ft

Thus the cliff is 27.5 ft tall,

Hope this helps :)

3 0
3 years ago
Find the point-slope equation for
mars1129 [50]

Answer:

y-24=m(x--4)

Step-by-step explanation:

point slope form:

y-y₁=m(x-x₁)

1) find the slope or "m" first:

slope formula: (y2-y1)/(x2-x1)

(-53-24)/7+4

-77/11=-7

slope=-7

so

y-y₁=-7(x-x₁)

y1=24

x1=-4

y-24=m(x--4)

hope this helps!

8 0
3 years ago
Solve the pair of simultaneous equation<br> 2-4(3x-y)=8(4-y)-39x and 8(4-y)-39x=6(y-x)
andre [41]

Answer:

X = -(146/123) , Y = 21/41

Step-by-step explanation:

  • 2-4(3x-y) = 8(4-y)-39x

2-12x-4y = 32-8y-39x

39x-12x+8y-4y = 32-2

27x+4y = 30

27x+4y-30 = 0

  • 8(4-y) -39x = 6(y-x)

32-8y-39x = 6y-6x

32-8y-6y-39x+6x = 0

-33x-14y+32 = 0

8 0
3 years ago
Julian is using a biking app that compares his position to a simulated biker traveling Julian's target speed. When Julian is beh
Gwar [14]

Answer:

11 km/hr.

Step-by-step explanation:

Given information:

Simulated speed = 20/km/h

Time = 15 mins = 1/4 hr = 0.25 hr

Distance Covered as per simulated speed = 20\times \frac{1}{4}=5km

Position of Julian according to the app = -2\frac{1}{4}=-2.25.

Actual distance covered by the bike is

Distance= 5 - 2.25 = 2.75km

Formula for speed:

\text{Average Speed}=\frac{Distance}{Time}

\text{Average Speed}=\frac{2.75}{0.25}

\text{Average Speed}=11

Therefore, the average speed of Julian is 11 km/hr.

5 0
3 years ago
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