3 years ago

Which interval notation represents the set of all numbers greater than or equal to -8

Mathematics

1 answer:

OleMash [197]3 years ago

3 0

A is the right answer

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Which of the following shows the factors of 5x2 + 17x + 6? A. (5x + 1)(x + 6) B. (5x + 2)(x + 3) C. (5x + 3)(x + 2) D. (5x + 6)(

zysi [14]

Answer:

B. $(x+3)(5x+2)$

Step-by-step explanation:

The given quadratic trinomial is;

$5x^2+17x+6$

Comparing this to $ax^2+bx+c$ , we have a=5,b=17,c=6.

$ac=5\times6=30$

Two factors of 30 that add up to 17 is 15 and 2.

We split the middle term to obtain;

$5x^2+15x+2x+6$

We factor by grouping;

$5x(x+3)+2(x+3)$

Factor further

$(x+3)(5x+2)$

The correct answer is B.

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3 years ago

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60% of what number is equal to 30?<br> A) 0.5 B) 2 C) 18 D) 50

Arada [10]

Answer:

D. 50

Step-by-step explanation:

50/1 (60/100) =

3000/100 =

30/1 =

7 0

3 years ago

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I need help, sleps plzz , i dont understand plzzz dont ignoree!!!!!!!!!!!!

denpristay [2]

Answer:

x = $\frac{3+\sqrt{105} }{8} , \frac{3-\sqrt{105} }{8} x=1.655,-0.905$

Step-by-step explanation:

3x+6 = 4x^2

4x^2 -3x -6 = 0

x = $\frac{3+\sqrt{105} }{8} , \frac{3-\sqrt{105} }{8} x=1.655,-0.905$

7 0

3 years ago

find the distance of CD if the coordinates of C are (-4,11) and D are ( -3,4) Express your answer in simplest radical form.

Aloiza [94]

Step-by-step explanation:

it's not clear but I tried

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2 years ago

Get 14 points, Plz help me with this question, and give the right answer cause it's important

Nitella [24]

All angles are of triangle and thus give sum of 180⁰

x + 5 + 7x - 5 + x = 180⁰

9x = 180⁰

x = 20⁰

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2 years ago

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