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3 years ago

Math question (working too, if possible)

Mathematics

2 answers:

inessss [21]3 years ago

4 0

4/15 of the Primary School chose chicken nuggets.

TiliK225 [7]3 years ago

3 0

Add the fractions that chose fish fingers and burgers, then subtract that sum from 1.

Fish fingers: 2/5

Burgers: 1/3

Sum of fish fingers and burgers fractions:

2/5 + 1/3

Common denominator = 15

2/5 * 3/3 + 1/3 * 5/5 = 6/15 + 5/15 = 11/15

Now we subtract 11/15 from 1.

1 - 11/15 = 1/1 * 15/15 - 11/15 = 4/15

The fraction that chose chicken nuggets is 4/15.

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LORAN is a long range hyperbolic navigation system. Suppose two LORAN transmitters are located at the coordinates (−60,0) and (6

USPshnik [31]

LORAN follows an hyperbolic path.

The equation of the hyperbola is: $\mathbf{\frac{x^2}{2500} + \frac{y^2}{1100} = 1}$

The coordinates are given as:

$\mathbf{(x,y) = (-60,0)\ (60,0)}$

The center of the hyperbola is

$\mathbf{(h,k) = (0,0)}$

The distance from the center to the focal points is given as:

$\mathbf{c = 60}$

Square both sides

$\mathbf{c^2 = 3600}$

The distance from the receiver to the transmitters is given as:

$\mathbf{2a = 100}$

Divide both sides by 2

$\mathbf{a = 50}$

Square both sides

$\mathbf{a^2 = 2500}$

We have:

$\mathbf{b^2 = c^2 - a^2}$

This gives

$\mathbf{b^2 = 3600 - 2500}$

$\mathbf{b^2 = 1100}$

The equation of an hyperbola is:

$\mathbf{\frac{(x - h)^2}{a^2} + \frac{(y - k)^2}{b^2} = 1}$

So, we have:

$\mathbf{\frac{(x - 0)^2}{2500} + \frac{(y - 0)^2}{1100} = 1}$

$\mathbf{\frac{x^2}{2500} + \frac{y^2}{1100} = 1}$

Hence, the equation of the hyperbola is: $\mathbf{\frac{x^2}{2500} + \frac{y^2}{1100} = 1}$

Read more about hyperbolas at:

brainly.com/question/15697124

7 0

2 years ago

Read 2 more answers

Can someone help me in this please???

MArishka [77]

The first one is 15 mornings

3 0

2 years ago

Read 2 more answers

ILL GIVE BRAINLIEST PLS HELP

yan [13]

Answer:

1/5

Step-by-step explanation:

The stick has a length of 5 units

The stick is broken at two points chosen at random

First break: the probability that you get a piece that is 1 unit or longer than 1 units= 1/5.

Second break, the probability that you get a piece that is 1 unit or longer than 1 units is 1/5.

Therefore,

The total probability =probability of first break * probability of second break * original stick unit

=1/5 * 1/5 * 5

= 1/25 *5

=5/25

=1/5

4 0

3 years ago

On one day a rickshaw puller earned 80.out of his earning he spent 68÷5 on tea and snacks,51÷2 on food and 22÷5 on repair of the

Alexeev081 [22]

Answer: $56.50
==================================
(instead of dividing each of them individually and them subtracting them one by one, combine them together as a fraction first and then subtract)

80 - (68/5 + 51/2 + 22/5)
= 80 - (136/10 + 255/10 + 44/10)
= 80 - (435/10)
= 80 - 43.5
= 56.5

He saved $56.50 on that

7 0

2 years ago

WILL MARK BRAINLY Ralph Craig ran the 100m for the US in 1912; when did he next compete in the Olympics?

IrinaK [193]

Answer: The 1948 yachting team.

4 0

3 years ago