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3 years ago

Question 5 and 7 please

Mathematics

1 answer:

mrs_skeptik [129]3 years ago

7 0

Question 5 answers: <1= 62 <2=45 <3=24

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Determine for each number whether it is a rational number or irrational number

erastova [34]

Picture is too blurry man.

5 0

3 years ago

Read 2 more answers

For the following sequence determine the common difference (if it is an arithmetic sequence) or the common ratio (if it is a geo

qwelly [4]

Answer:

The first one is the answer.

Step-by-step explanation:

It's an arithmetic sequence. It has a common difference.

d = an - a_n-1

an = -12x + 12

a_n-1 = - 7x + 8

d = -12x + 12 - (-7x + 8)

d = -12x + 12 + 7x - 8

d = -5x + 4

Try it. Let's try for the third term

-12x + 12 - 5x + 4

- 17x + 15 which is exactly what the third term is.

5 0

3 years ago

Please help with this qn :)

zepelin [54]

Answer:

4 is the length

Step-by-step explanation:

14 and 4

14 x 14 + 4 x 4 = 212

14 + 4 = 18

7 0

2 years ago

4) Which step could be completed in order to prepare the system of equations below for the elimination method?

borishaifa [10]

Answer:

Option C - Multiply the 1st equation by 2

Step-by-step explanation:

To find : Which step could be completed in order to prepare the system of equations below for the elimination method?

Solution :

1st equation: $5x-3y=10$

2nd equation: $8x+6y=15$

For elimination method,

We eliminate the y by multiplying 1st equation by 2 and add by 2nd equation.

i.e. 1st equation became $10x-6y=20$

Add with 2nd equation,

$10x-6y+8x+6y=20+15$

$18x=35$

$x=\frac{35}{18}$

Substitute in (1),

$5(\frac{35}{18})-3y=10$

$\frac{175}{18}-3y=10$

$3y=\frac{175}{18}-10$

$3y=\frac{175-180}{18}$

$3y=\frac{-5}{18}$

$y=\frac{-5}{54}$

Therefore, the step could be completed in order to prepare the system of equations below for the elimination method is option C.

3 0

4 years ago

Can you help me solve this?

Natalka [10]

Answer:

first one is rational, second is also rational, third is rational, fourth is rational, and fifth is irrational.

Step-by-step explanation:

Rational numbers are numbers that can be expressed as a fraction or part of a whole number. (examples: -7, 2/3, 3.75) Irrational numbers are numbers that cannot be expressed as a fraction or ratio of two integers. The reason why $\sqrt{12}$ is an irrational number is bc it's not a perfect square while $\sqrt{49}$ equals to 7 and is a perfect square.

6 0

3 years ago

Read 2 more answers