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3 years ago

Solve the quadratic equation 2x^2 - 13x+20 by factoring

Mathematics

1 answer:

Gemiola [76]3 years ago

7 0

Answer:

2.5 and 4

Step-by-step explanation:

$2x^2-13x+20=0$

$(2x-5)(x-4)=0$

$x=4, 2.5$

Hope this helps!

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1/8(-8c+16)-1/3(6+3c)

Misha Larkins [42]

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This may look scary, but all you have to do is distribute, first:
$(-c+2)-(2+c)$

Now it's much easier (remember to distribute the negative):
$-c+2-2-c = -2c$

So, the entire thing simplifies to -2c. NEAT!

4 0

3 years ago

Read 2 more answers

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4 years ago

An airplane in flight needed to make an emergency landing so it descended at an angle of depression of 15 degrees for 50,000 ft

JulijaS [17]

Answer:

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Step-by-step explanation:

tan 15 = height/50,000

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3 years ago

Simplify the following expression: (2x^3 y)^4 / 3x^2 (4x^5 y^2)

Paraphin [41]

I believe that 64x^19y^6 over 3 is the correct answer

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4 years ago

Is 1/3, 2/3, 4/3, 8/3, 16/3 arithmetic sequence

11111nata11111 [884]

The given sequence is not arithmetic sequence

Solution:

Given sequence is:

$\frac{1}{3} , \frac{2}{3} , \frac{4}{3} , \frac{8}{3} , \frac{16}{3}$

We have to find if the above sequence is arithmetic sequence or not

An arithmetic sequence is a sequence of numbers such that the difference of any two successive members of the sequence is a constant

Here in the given sequence

$\text{ first term } = a_1 = \frac{1}{3}\\\\\text{ second term } = a_2 = \frac{2}{3}\\\\\text{ third term } = a_3 = \frac{4}{3}\\\\\text{ fourth term } = a_4 = \frac{8}{3}\\\\\text{ fifth term } = a_5 = \frac{16}{3}$