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guajiro [1.7K]
3 years ago
11

Prove: If a^2-a is even then a is even.

Mathematics
1 answer:
Alla [95]3 years ago
6 0

This is not always true. Consider a=3. Then 3^2-3=9-3=6 is even, but a is odd.

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Answer:

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Step-by-step explanation:

The vertex of a parabola lies on the axis of symmetry.

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2 years ago
Is the binomial a factor of the polynomial function f(x)=x^3+2x^2-16x-32
GREYUIT [131]

Step-by-step explanation:

f ( 4 ) = 64 + 32 - 64 - 32 = 0

Thus x - 4 is a factor

Find other factors by synthetic division.

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( x - 4 ) ( x ² + 6x + 8 ) = 0

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3 years ago
Write one and two hundred fifty three thousandths in standard form
aivan3 [116]
1.253
Is the answer to ur question
6 0
3 years ago
Simplify the equation 4x+3y=2x
nikdorinn [45]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
1.1 solve for x, where 0°< x 90°. write your answer to one decimal place. 1.1.1 tanx=sin38° 1.1.2cosec( x+10°)=1.345​
snow_lady [41]

The value of x in tan(x)=sin38° is 31.6 and the value of x in cosec(x+10°)=1.345​ is 38.0

<h3>How to solve the trigonometry ratios?</h3>

The equations are given as:

tan(x)=sin38°

cosec( x+10°)=1.345​

In tan(x)=sin38°, we have:

tan(x)=0.6157

Take the arc tan of both sides

x = 31.6

Also, we have:

cosec(x+10°)=1.345​

Take the inverse of both sides

sin(x+10°) = 0.7434

Take the arc sin of both sides

x+10 = 48.0

Subtract 10 from both sides

x = 38.0

Hence, the value of x in tan(x)=sin38° is 31.6 and the value of x in cosec(x+10°)=1.345​ is 38.0

Read more about trigonometry ratios at:

brainly.com/question/11967894

#SPJ1

5 0
2 years ago
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