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2 years ago

I could really use your help , 25 POINTS!!

Mathematics

1 answer:

In-s [12.5K]2 years ago

8 0

since line AB and CD make all right angles (given) angles 6+7+8 will equal 90 degrees.

According to the verticle angles rule:

angle 2 is equal to angle 6

angle 3 is equal to angle 7

angle 4 is equal to angle 8.

which proves that angle 2+4+7=90 degrees

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Mr.Burn's class is taking aa field trip to the planetatium. The trip will $27 for each student. There are 18 students in his cla

mojhsa [17]

$27 x 18 students = 486 actual cost.

$30 x 10 students = 300 estimated total cost using compatible numbers.
$20 x 20 students = 400 estimated total cost using compatible numbers. (better option because it is nearer to the actual cost)

Compatible numbers are numbers that can easily be multiplied or divided using mental computation.

Compatible number for 27 and 18 can be: 30 and 20 OR 20 and 20 OR 30 and 10 OR 20 and 10.

However, there is a rule in multiplying the compatible numbers, when one number is increased the other number must be decreased.

So 27 can be increased to 30; while 18 can be decreased to 10 to get a product of 300.

27 can be decreased to 20; while 18 can be increased to 20 to get a product of 400.

4 0

2 years ago

Read 2 more answers

Which of the following fractions is equivalent to 2:11?

Lostsunrise [7]

Answer:

Step-by-step explanation:

Step 1:

2 : 11 Ratio

Having a ratio is the same thing as dividing so if you divide 2 by 11 you get 2/11.

Step 3

2 ÷ 11

Answer:

C. 2/11

Hope This Helps :)

8 0

2 years ago

You can buy a 60 pack of paper towels for $75.99 or you can buy them individually for $1.65 each. Is it better to buy one bulk p

Ipatiy [6.2K]

Answer:

It's better to buy the bulk pack

Step-by-step explanation:

60 x 1.65 = $99

99 > 76

4 0

2 years ago

Read 2 more answers

Consider the original parallelogram and the enlargement.

n200080 [17]

Answer:

30mm

Step-by-step explanation:

Small Parallelogram= 5×10

Big Parallelogram= 15×?

15÷5=3

?÷10=3

?=30

30÷10=3

8 0

3 years ago

Determine whether the sequence converges or diverges. If it converges, find the limit. (If an answer does not exist, enter DNE.)

xenn [34]

Answer:

if the sequence is:

12, 13, 13, 14, 14 etc, and each term keeps growing up, the sequence obviusly diverges.

Now, if the sequence is

1/2, 1/3, 1/3, 1/4, 1/4, 1/5 , 1/5

so the terms after the first one repeat, we could group the terms with the same denominator and get:

1/2, 2/3, 2/4, 2/5..... etc.

So the terms after the first one are aₙ = 2/n.

Now, a criteria to see if a sequence converges if seing if:

$\lim_{n \to \infty} a_n = 0$

and here we have;

$\lim_{n \to \infty} 2/n$

that obviusly tends to zero, so we can conclude that this sequence converges.

then the limit is:

There exist a n' such that for any n > n' then IL -aₙI < ε

where L is the limit

I2/n - 0I = I2/nI < ε

then this is true if n > 2/ε = n'

3 0

2 years ago