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2 years ago

Factor de expression:2x2 − 5x − 3

Mathematics

2 answers:

kramer2 years ago

5 0

The answer is (2x + 1)(x - 3)

Angelina_Jolie [31]2 years ago

5 0

Factor de expression:2x2-5x-3=19

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Solve the following inequality.

Anika [276]

Solving the inequality given algebraically, the solution of the inequality for the value of m is:

m < -4 OR m > 3

Given the following inequality,

$\frac{m - 2}{3} < -2 \\$

4m + 3 > 15

Let's solve algebraically for the value of m in both inequality statements given.

$\frac{m - 2}{3} < -2 \\$

Multiply both sides by 3

$\frac{m - 2}{3} \times 3 < -2 \times 3\\\\m - 2 < -6$

Add 2 to both sides

$m - 2 + 2 < -6 + 2\\\\m < -4$

4m + 3 > 15

Subtract 3 from each side

4m + 3 - 3 > 15 - 3

4m > 12

Divide both sides by 4

$\frac{4m}{4} > \frac{12}{4} \\\\$

m > 3

Therefore, solving the inequality given algebraically, the solution of the inequality for the value of m is:

m < -4 OR m > 3

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8 0

2 years ago

The scatter plot shows how the cooking time for a beef roast is related to its weight. Which statement is NOT supported by the t

bija089 [108]

Answer:

the statement that is not supported by the trend in this scatter plot is that each additional pound adds about 1 hour of cooking time. (last option)

3 0

3 years ago

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Using quadratic formula to find the solution for y=3x^3+8x-1

andre [41]

Y=-1

that’s the answer

3 0

2 years ago

Trapezoid ABCD has the following coordinates-A (2, 8), B (6, 8), C (8, 3), and D (1, 3). What are the coordinates of trapezoid A

Novay_Z [31]

Answer: A' ( -1,4) , B' (-4,4), C'( -5 ,-1), D'( -1,-5)

Im not 100% sure its correct, its hard without an image or a picture of the problem

Step-by-step explanation:

5 0

2 years ago

Sorry about the bad quality :(

dmitriy555 [2]

Answer:

Yes, y varies directly with x, and the equation is $y=1.6x$ .

Step-by-step explanation:

To check where there is a direct relationship between x and y, we need to check whether all the x,y pairs we have fit some rule:

$y=k\times x$ .

For the first pair (x=4, y=6.4),

$6.4=k\times 4$

Therefore $k = 1.6$ .

For the second pair (x=7, y=11.2),

$11.2=k\times 7$

Therefore $k = 1.6$ .

For the third pair (x=10, y=16),

$16=k\times 10$

Therefore $k = 1.6$ .

For the second pair (x=13, y=20.8),

$20.8=k\times 13$

Therefore $k = 1.6$ .

So x does directly vary with y, and we have found out that $k=1.6$ .

4 0

3 years ago

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