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Arlecino [84]
4 years ago
9

What is 55+50. what will be the answer

Mathematics
2 answers:
Svetlanka [38]4 years ago
8 0

Answer:

105

Step-by-step explanation:

Masja [62]4 years ago
4 0

Answer:

55 + 50 is 105

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Which ratio will help to find the value of the missing side of the triangle?
kari74 [83]

Answer:

Correct ratio is:

2/3 = x/4

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Write a polynomial of degree 5 with zero x=0,i square root 7, -2i
professor190 [17]

Answer:

P(x)=x^5+11x^3+28x

Step-by-step explanation:

<u>Roots of a polynomial</u>

If we know the roots of a polynomial, say x1,x2,x3,...,xn, we can construct the polynomial using the formula

P(x)=a(x-x_1)(x-x_2)(x-x_3)...(x-x_n)

Where a is an arbitrary constant.

We know three of the roots of the degree-5 polynomial are:

x_1=0;\ x_2=\sqrt{7}\boldsymbol{i}:\ x_3=-2\boldsymbol{i}

We can complete the two remaining roots by knowing the complex roots in a polynomial with real coefficients, always come paired with their conjugates. This means that the fourth and fifth roots are:

x_4=-\sqrt{7}\boldsymbol{i}:\ x_3=+2\boldsymbol{i}

Let's build up the polynomial, assuming a=1:

P(x)=(x-0)(x-\sqrt{7}\boldsymbol{i})(x+\sqrt{7}\boldsymbol{i})(x-2\boldsymbol{i})(x+2\boldsymbol{i})

Since:

(a+b\boldsymbol{i})\cdot (a-b\boldsymbol{i})=a^2+b^2

P(x)=(x)(x^2+7)(x^2+4)

Operating the last two factors:

P(x)=(x)(x^4+11x^2+28)

Operating, we have the required polynomial:

\boxed{P(x)=x^5+11x^3+28x}

7 0
3 years ago
The three angles of a quadrilaterals are 540, 970,860.Find the fourth angle?
m_a_m_a [10]

Answer:123 degrees

Step-by-step explanation:

360-54-97-86=123

4 0
3 years ago
Farrah is 4 years older than 5 times her brother Emil's age. Farrah is 19 years old. Let e represent Emil’s age. During the Stra
Pepsi [2]
The answer is B.
If Farrah is 5 times older than Emil plus 4 years, the equation would be 5e+4.
8 0
3 years ago
The variables x, y, and z vary jointly.
serious [3.7K]

Answer:

k = 18

when x = 4, y = 3, z = -24

Step-by-step explanation:

x = k * y * z

Find k when x = 4, y = 3, and z = 24

4 = k * 3 * 24

4 = k * 72

4 = 72k

k = 72/4

k = 18

find z when x = -3 and y = 4

x = k * y * z

-3 = 18 * 4 * z

-3 = 72 * z

-3 = 72z

z = 72/-3

z = -24

4 0
3 years ago
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