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3 years ago

Write 3 1/8 as a decimal.

Mathematics

2 answers:

Alenkinab [10]3 years ago

5 0

No it is not. It is a fraction

VladimirAG [237]3 years ago

3 0

The answer is 3.125
That's correct...

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Solve using perfect square factoring patterns. x2 – 12x + 36 = 4 A. {–8, –4} B. {–2, 10} C. {4, 8} D. {10, –2}

Nataliya [291]

x2 – 12x + 36 = 4
(x - 6)^2 = 2^2

x - 6 = 2
x = 8

-(x - 6) = 2
-x + 6 = 2
-x = -4
x = 4

answer
C. {4, 8}

3 0

3 years ago

How do I calculate this? Is there a formula?

alex41 [277]

Answer:

Height of cables = 23.75 meters

Step-by-step explanation:

We are given that the road is suspended from twin towers whose cables are parabolic in shape.

For this situation, imagine a graph where the x-axis represent the road surface and the point (0,0) represents the point that is on the road surface midway between the two towers.

Then draw a parabola having vertex at (0,0) and curving upwards on either side of the vertex at a distance of $x = 600$ or $x = -600$ , and y at 95.

We know that the equation of a parabola is in the form $y=ax^2$ and here it passes through the point $(600, 95)$ .

$y=ax^2$

$95=a \times 600^2$

$a=\frac{95}{360000}$

$a=\frac{19}{72000}$

So new equation for parabola would be $y=\frac{19x^2}{72000}$ .

Now we have to find the height $(y)$ of the cable when $x= 300$ .

$y=\frac{19 (300)^2}{72000}$

y = 23.75 meters

8 0

3 years ago

Read 2 more answers

Solve for x: 5/8=x-1/9 A. 37/8 B. 23/4 C. 11/2 D. 53/8

Vesna [10]

Answer:

53/72

Step-by-step explanation:

5/8 = x - 1/9

+1/9 +1/9

5/8 + 1/9 = x

9(5/8) + 8(1/9)

45/72 + 8/72

x= 53/72

8 0

2 years ago

If Rupert does all his math quizzes, and if he scores 4 correct for every 5 questions, what will his percentage correct be?

Sauron [17]

Answer:

LOL IT'S GONNA BE 80%

Step-by-step explanation:

HOPE THIS HELPS, SORRY FOR ALL THE CAPS

5 0

2 years ago

6) Sally wrote the number 30, 048 in expanded form.

vichka [17]

Answer:

the answer is G) Change 30 to 3,000

6 0

3 years ago