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2 years ago

Four more than a number, n, is no more of thirteen.

Mathematics

2 answers:

Dimas [21]2 years ago

8 0

Answer:

n+4=<13

replace =< with less than or equal to (the < with an extra line under)

White raven [17]2 years ago

5 0

Answer:

lol

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To determine whether or not they have a certain disease, 150 people are to have their blood tested. However, rather than testing

Sophie [7]

Answer:

The answer is 75 tests for 150 people.

Step-by-step explanation:

Firstly, with 150 people, we can divide into 15 groups; and the probability of disease is 0.04, there are 6 persons who possibly get disease.

Therefor, the maximum number of groups with an individual getting disease is 6. Then, 6 * 11 tests = 66 tests required.

15 groups - 6 groups with disease = 9 groups of negative with 9 tests.

In conclusion, there are 75 tests required.

7 0

3 years ago

Does anyone know the answer to this?

Klio2033 [76]

Try photo math
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3 years ago

Solve the inequality |2h-3| >1

mel-nik [20]

Answer:

$\large\boxed{h>2\ \vee\ h$

Step-by-step explanation:

$|2h-3|>1\iff2h-3>1\ \vee\ 2h-34\ \vee\ 2h2\ \vee\ h$

5 0

3 years ago

Factor the polynomial function over the complex numbers. f(x)=x^4-x^3-2x−4 Enter your answer in the box. f(x) = The answer is: (

Vladimir79 [104]

Answer:

Factors: $(x+i\sqrt2)(x-i\sqrt2)(x+1)(x-2)=0$

Step-by-step explanation:

We are given a polynomial:

$f(x)=x^4-x^3-2x-4$

We have to factor the given polynomial into its complex factors.

The factorization can be done as follows:

$f(x)=x^4-x^3-2x-4 = 0\\x^4-x^3-2x-4 = 0\\x^4-4-x^3-2x=0\\\text{Identity: }a^2-b^2 = (a+b)(a-b)\\(x^4-4)-(x^3+2x) = 0\\(x^2+2)(x^2-2)-x(x^2+2) = 0\\(x^2+2)(x^2-2-x) = 0\\(x^2+2)(x^2-x-2) = 0\\(x^2+2)(x^2-2x-+x-2) = 0\\(x^2+2)((x(x-2)+1(x-2))=0\\(x^2+2)(x+1)(x-2)=0\\\text{Identity: }a^2-b^2 = (a+b)(a-b)\\(x^2-(\sqrt{-2})^2)(x+1)(x-2)=0\\(x+i\sqrt2)(x-i\sqrt2)(x+1)(x-2)=0$

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3 years ago

Help!!!!! Please!!!

miss Akunina [59]

The equation for line E is x = 8.
This is because the line intersects the x-axis at the point (8,0)

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3 years ago