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Readme [11.4K]
3 years ago
15

Please help me it’s urgent!

Mathematics
2 answers:
tatyana61 [14]3 years ago
8 0
A and c

Explanation

I got it right on the test
Salsk061 [2.6K]3 years ago
7 0
1.a
2.c

When u plug in what the x variable is in each equation, you figure out what y equals to.
1.y=(2)^3 +1 so y=8+1 so y=9
2.y=(-2)^3 +1 so y=-8+1 so y=-7
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What are the solutions to the system of equations?<br> x2 + y2 = 5<br> y = 2x.
Colt1911 [192]

Answer:

(1, 2) and (- 1, - 2)

Step-by-step explanation:

Given the 2 equations

x² + y² = 5 → (1)

y = 2x → (2)

Substitute y = 2x into (1)

x² + (2x)² = 5, that is

x² + 4x² = 5

5x² = 5 ( divide both sides by 5 )

x² = 1 ( take the square root of both sides )

x = ± \sqrt{1} = ± 1

Substitute these values into (2) for corresponding values of y

x = 1 → y = 2(1) = 2 ⇒ (1, 2)

x = - 1 → y = 2(- 1) = - 2 ⇒ (- 1, - 2)

4 0
3 years ago
Read 2 more answers
Given the following three arithmetic sequences : 1, 3, ... and 1, 4, ... and 1, 5, ... A number is randomly selected from 1 to 1
ladessa [460]

Answer:

  0.333

Step-by-step explanation:

The first sequence starts at 1 and has a common difference of 2. It will include every odd number in the range.

__

The second sequence starts at 1 and has a common difference of 3. It will include odd numbers and the even numbers 4, 10, 16, .... That is, all even numbers of the form 6n -2 will be included. The last one corresponds to the largest value of n such that ...

  6n -2 ≤ 1000

  6n ≤ 1002

  n ≤ 167

That is, 167 even numbers will also be excluded.

__

The third sequence starts at 1 and has a common difference of 4. Every number in this sequence is also a number in the first sequence.

__

So the numbers in these sequences include all 500 odd numbers and 167 even numbers, for a total of 667 numbers. The probability that a randomly chosen number is not in one of these sequences is ...

  (1000 -667)/(1000) = 333/1000 = 0.333 . . . . p(not a sequence term)

8 0
3 years ago
Can someone please help me out? I am noooottt good at these.
Sliva [168]

Answer:

your answer to page one is

3 11/24

the second page is

13 2/3

the third one is

10.7

the forth one is also 10.7

5 0
3 years ago
Read 2 more answers
Solve by factoring.<br><br> x2 + 6x = - 9. Hint: This is a double root.
lutik1710 [3]
Subtract -9 from both sides.

x2+6x−(−9)=−9−(−9)

x2+6x+9=0

Factor left side of equation.

(x+3)(x+3)=0

Set factors equal to 0.

x+3=0 or x+3=0

x=−3

Answer:

x=−3

6 0
3 years ago
Read 2 more answers
Please help asap, need this done tomorrow ​
yanalaym [24]

Answer:

y=2x-2

Step-by-step explanation:

hope that helps

4 0
3 years ago
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