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GenaCL600 [577]
3 years ago
9

PLEASE HELP DUE IN 2 HOURS

Mathematics
2 answers:
Mademuasel [1]3 years ago
8 0

Answer:

total surface area =2(13×5+8×5+13×5)=340in²

B

yes,because the surface area is less than 400in²

Semmy [17]3 years ago
5 0

Answer: D

So we want to find out how big all the sides are to find out if its less than 400

do in calc

2(13x5)+2(8x5)+2(13x8)=418

418>400

and its d because its talking about the surface area since we are trying to cover the surface in wrapping paper

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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
Which of the following has a value of 84?<br> a. 83<br> b. 512<br> c. 32<br> d. 4,096
seropon [69]
Based on the choices, I think the 84 in the problem is not really the number 84. Instead, it is 8 raised to the power of 4 or 8⁴

Thus, 8⁴ = 8 x 8 x 8 x 8 = 4,096

    8 x 8 = 66
  64 x 8 = 512
512 x 8 = 4,096

So, my answer is d. 4,096
4 0
3 years ago
Read 2 more answers
A husband and wife have normal vision, although both of the couple's fathers are red–green color-blind, an inherited X-linked re
Mekhanik [1.2K]

Answer:

1/2

Step-by-step explanation:

Since the recessive gene is carried in the x chromosome and a father can only pass it to a daughter, the father doesn't have the disease nor carries it.

The mother carries the recessive gene because her father passed her his conditioned gene (only having one x chromosome), while her mother gave her a normal one so she can have normal vision.  

The chance of having a boy or a girl is 1/2 and the chance of this baby of having both recessive gene is null because in order to have a girl that is color blind both her x chromosomes must have the recessive gene, but the father can't pass it since he doesn't carries it. Therefore the combined probability is 1/2*(1-0) = 1/2.

7 0
3 years ago
find the volume of a trianglular prism that has a triangular base of 14 and and a height of 17 with a prism height of 5 leave yo
Leya [2.2K]

1,190 cubic units I hope I  helped you and plz mark brainliest

3 0
4 years ago
What is 46656 in exponential form?
Eva8 [605]
4 × 104
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+6 × 100<span>
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