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3 years ago

X/-9 = 3 solve for x

Mathematics

1 answer:

Anni [7]3 years ago

7 0

Answer:

x = -28

Step-by-step explanation:

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A kayak races 100 meters in 50 seconds. what is the speed of the kayak

Leviafan [203]

100 m / 50 s = 2 m/s = 2 *3600 / 1000 = 7.2 k/h

hope it helps :)

7 0

3 years ago

The third term in an arithmetic sequence is 14 and the fifth term is 20. If the first term is a1, which is an equation for the n

Kruka [31]

Answer:

The equation for nth term is 3n + 5.

Step-by-step explanation:

Let a1 be a,

a3 = a + (n - 1)d

or, 14 = a + (3 - 1)d

so, 14 = a + 2d

Now,

a5 = a + (n - 1)d

or, 20 = a + (5 - 1)d

or, 20 = a + 4d

now,

a + 4d = 20

a + 2d = 14

now,

a + 4d - ( a + 2d) = 20 - 14

or, a + 4d - a - 2d = 6

or, 2d = 6

so, d = 3

Now,

a + 2d = 14

or, a + 2(3) = 14

or, a = 14 - 6

so, a = 8

Now,

an = a + (n - 1)d

or, an = 8 + (n - 1)3

or, an = 8 + 3n - 3

so, an = 3n + 5

5 0

3 years ago

In AABC the measure of angle A is 2x + 3, the measure of angle B is4x + 2. and the measure of angle C is 2x - 1. What are the me

hram777 [196]

Answer:

............................

7 0

3 years ago

an 8lb cat has an IV flow rate of 2mL/kg/hr, how many mL's of fluids does the cat receive in 24 hours

Blababa [14]

Answer:

175 mL

Step-by-step explanation:

(a) Convert the mass of the cat to kilograms

1 kg = 2.20 lb

Mass = 8 lb × (1 kg/2.20 lb)

= 3.64 kg

(b) Calculate the hourly volume

V = 3.64 kg × (2 mL/1 kg)

= 7.27 mL

(c) Calculate the daily volume

V = 24 h × (7.27 mL/1 h)

= 175 mL

3 0

3 years ago

In testing a certain kind of missile, target accuracy is measured by the average distance X at which the missile explodes. The d

3241004551 [841]

Answer:

The answer is c) 761.0

Step-by-step explanation:

Mathematical hope (also known as hope, expected value, population means or simply means) expresses the average value of a random phenomenon and is denoted as E (x). Hope is the sum of the product of the probability of each event by the value of that event. It is then defined as shown in the image, Where x is the value of the event, P the probability of its occurrence, "i" the period in which said event occurs and N the total number of periods or observations.

The variance of a random variable provides an idea of the dispersion of the random variable with respect to its hope. It is then defined as shown in the image.

Then you first calculate E [x] and E [ $x^{2}$ ], and then be able to calculate the variance.