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2 years ago

A reel of electrical cable holds 80 metres when full.

Mathematics

1 answer:

kaheart [24]2 years ago

6 0

I3/I6(8O)= 65m of electrical cable left

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Help pleaseeeeeee!!!!!!

Archy [21]

Answer:

5x + 100

Step-by-step explanation:

(2x + 6) x 2 = 4x + 12

14x + 8 - 4x + 12 =

10x + 20 / 2 =

5x + 100

Hope that helps!

3 0

2 years ago

Solve pls!!!!!! Asap

zloy xaker [14]

Answer:

Step-by-step explanation:

7^2=a^2+4^2

49-16=a^2

√23=a

6 0

2 years ago

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Identify two tables which represent quadratic relationships

lord [1]

Answer:

Tables 3 and 5

Step-by-step explanation:

if you know that quadratic equations from curves, then, check out the number patterns on 3 and 5, then, compare them with the others, you'll see

3 0

2 years ago

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Will give brainliest

Alborosie

5 0

2 years ago

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Farmer Jones, and his wife, Dr. Jones, decide to build a fence in their field, to keep the sheep safe. Since Dr. Jones is a math

NISA [10]

Answer: $A=\frac{14}{9}\cdot \sqrt{2}\ unit^2$

Step-by-step explanation:

Given

Two curves are given

$y=10 x^2$

and $y=x^2+2$

the two curves intersect at

$10x^2=x^2+2$

$x=\pm \frac{\sqrt{2}}{3}$

to get the we need to integrate the curves over x axis

$A=\int_{-\frac{\sqrt{2}}{3}}^{\frac{\sqrt{2}}{3}}\left ( x^2+3-10x^2\right )dx$

$A=2\int_{0}^{\frac{\sqrt{2}}{3}}\left ( 3-9x^2\right )dx$

$A=2\left [ 3\left ( \frac{\sqrt{2}}{3}\right )-\frac{9}{3}\left ( \frac{\sqrt{2}}{3}\right )^3\right ]$

$A=2\sqrt{2}\left [ 1-\frac{2}{9}\right ]$

$A=\frac{14}{9}\cdot \sqrt{2}\ unit^2$

3 0

2 years ago