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3 years ago

Is perpendicular to OS. is a_____line.

Mathematics

1 answer:

Step2247 [10]3 years ago

6 0

I would answer the problem but first upload the diagram

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What is the missing number in the series?<br><br> 1, 16, 81, __, 625, 1296

Alinara [238K]

Answer:

256

Step-by-step explanation:

We are given the series

1, 16, 81, __, 625, 1296

The missing number in the sequence is the fourth term

From the above sequence, we know that

1, 4², 9² , __, 25² , 36²

Difference between first term = 4 - 1 = 3

9 - 4 = 5

x - 9 = 7

x = 9 + 7 = 16

Hence, the fourth term = 16²

= 256

6 0

2 years ago

I need help I will list you as brainliest

SCORPION-xisa [38]

D is the answer Because I ik it’s the answer

3 0

2 years ago

Read 2 more answers

Three times the square of a non-zero number is equal to fifteen times the number.what is the number?

Alona [7]

5 because you subtract 15x and bring it to 3x^2 and get 3x^2-15x=0. Then take out the gcf and you get 3x(x-5)=0. Since it can't be 0, x-5=0 , the answer is 5.

8 0

3 years ago

I really need help!!!!ASAP!!!Will mark as brainest!!!(Feel free to explain how you got your answer! :)

faltersainse [42]

Answer:

A) Quincy should buy 22 rolls

B) 43 rolls

C) she needs to buy 19 rolls of ribbon.

Step-by-step explanation:

yards of ribbon = 322

ribbon comes in rolls= 15

Quincy should buy = 322/15 = 21.46

Quincy should buy 22 rolls

Twice the length of 322 yards is 644 yards. If I divide 644 by 15, the answer is 42 r 14. Because there is a remainder, we need to round the quotient up to 43.

Alice needs to buy 43 rolls of ribbon.

If we divide the total amount of ribbon, 285, by the amount of ribbon in each roll, 15, we get:

285 ÷ 15 = 19

So, she needs to buy 19 rolls of ribbon.

One possible combination could be:

10 rolls of yellow ribbon = 150 yards

5 rolls of red ribbon = 75 yards

4 rolls of blue ribbon = 60 yards

total of: 10+5+4=19 rolls

Since there are 15 yards of ribbon in each roll, the total amount of ribbon will be:

15×19=285

So answer is correct

Thanks!

3 0

3 years ago

Determine the factors of x^2 − 12x − 20. (5 points)

Vikki [24]

For this case we must factor the following expression: $x ^ 2-12x-20$

We have that the expression cannot be factored with rational numbers.

On the other hand, we can find the zeros, applying the quadratic formula we have: $x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2 (a)}$

Where:

$a = 1\\b = -12\\c = -20$

$x = \frac {- (- 12) \pm \sqrt {(- 12) ^ 2-4 (1) (- 20)}} {2 (1)}\\x = \frac {12 \pm \sqrt {144-4 (1) (- 20)}} {2 (1)}\\x = \frac {12 \pm \sqrt {144 + 80}} {2}\\x = \frac {12 \pm \sqrt {224}} {2}\\x = \frac {12 \pm \sqrt {16 * 14}} {2}\\x = \frac {12 \pm4 \sqrt {14}} {2}$

Thus, the roots would be:

$x_ {1} = 6 + 2 \sqrt {14}\\x_ {2} = 6-2 \sqrt {14}$

Answer:

the expression cannot be factored with rational numbers.

3 0

3 years ago