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Allisa [31]
3 years ago
12

Ill give brianliest if right pls help

Mathematics
1 answer:
iris [78.8K]3 years ago
5 0

Answer:

The Angry Southerns joined groups like the Red Shirts because,they blamed the North for ending slavery.

Step-by-step explanation:

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Subtract these polynomials.
Elina [12.6K]

Answer:

D) x^2+2

Step-by-step explanation:

(2x^2+2x+3)-(x^2+2x+1)

2x^2-x^2+2x-2x+3-1

x^2+3-1

x^2+2

5 0
3 years ago
A drunk person is walking on the road. With probability 0.6 he takes a step forward and with probability 0.4 he takes a step bac
Molodets [167]

If a person after 10 steps is at his starting position, then this person takes 5 steps forward and 5 steps backward.

This is a binomial distribution with

  • probability to take step forward p=0.6;
  • probability to take step backward q=0.4;
  • n=10.

Then

Pr(\text{5 steps forward and 5 steps backward})=C_{10}^5p^5q^5=\\ \\=\dfrac{10!}{5!(10-5)!}\cdot (0.6)^5\cdot (0.4)^5=\dfrac{10!}{5!\cdot 5!}\cdot (0.6\cdot 0.4)^5=\\ \\=\dfrac{5!\cdot 6\cdot 7\cdot 8\cdot 9\cdot 10}{5!\cdot 2\cdot 3\cdot 4\cdot 5}\cdot (0.24)^5=7\cdot2\cdot 9\cdot 2\cdot (0.24)^5=252\cdot (0.24)^5=0.2006581248.

Answer: 252\cdot (0.24)^5=0.2006581248.

6 0
3 years ago
When 7 is subtracted from five times a number, the result is greater than twice the sum of the number and 4. Find all the number
hichkok12 [17]

Given :

When 7 is subtracted from five times a number, the result is greater than twice the sum of the number and 4.

To Find :

All the numbers that satisfy the inequality.

Solution :

Let , the number is x .

Mathematical expression for first term is :

5x - 7

Mathematical expression for second term is :

2(x + 4)

Now , comparing both the expression by given constrain.

5x - 7 > 2(x + 4)\\\\5x-7>2x+8\\\\3x>15\\\\x>5

So, all the numbers that satisfy the inequality are greater than 5.

Hence , this is the required solution.

3 0
4 years ago
X + (-1.2x) = 27<br><br> Please help me ASAP!! I really need somebody to figure this out.
DedPeter [7]

Answer:

i got x=-135

Step-by-step explanation:

lets solve!

first remove the parentheses=        x-1.2x=27

second you collect like terms=       -0.2x=27

last divide both sides by -.02 =      x=-135

hope this helps you!! :)

6 0
4 years ago
100 POINTS!!! can someone please explain how to do this?
ivolga24 [154]

Answer:

x =pi/2,3pi/2

Step-by-step explanation:

sin²(x) - cos²(x) - sin²(x) = 0

Simplify

sin²(x)  - sin²(x) = 0

Leaving us with

- cos²(x)  = 0

Divide each side by -1

- cos²(x/-1  = 0/-1

 cos²(x)  = 0

Take the square root of each side

sqrt( cos²(x))  = sqrt(0)

 cos(x)  = 0

Taking the inverse cos of each side

cos^-1(cos(x))  = cos^-1(0)

x = pi/2     x = 3pi/2

7 0
3 years ago
Read 2 more answers
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