3 years ago

Simplify (1 - sin x)(1 + sin x). 0 1 O cos^2 x O sin^2 x O tan^2 x

Mathematics

1 answer:

V125BC [204]3 years ago

5 0

This would be cos^2x, because when you foil out the equation you get 1-sin^2(x).

1-sin^2(x)=cos^2(x)

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What is the slope of the line through (-1,8) and (3,-4)?

laila [671]

Hey there!!

How do we find slopes ?

Slope = $\frac{y2-y1}{x2-x1}$

We are given with two co-ordinates :

(-1,8) and (3,-4)

Hence, the slope is :

$\frac{-4-8}{3+1}$

... $\frac{-12}{4}$ = -3

The slope is -3.

Hope my answer helps!

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3 years ago

Express 2x^2+8x+3 in the form 2(x+p)^2+q

e-lub [12.9K]

Answer:

2(x + 2)² - 5

Step-by-step explanation:

Given

2x² + 8x + 3

To obtain the required form use the method of completing the square.

The coefficient of the x² term must be 1, thus factor 2 out of 2x² + 8x

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add/subtract ( half the coefficient of the x- term)² to x² + 4x

= 2(x² + 2(2)x + 4 - 4) + 3

= 2(x + 2)² - 8 + 3

= 2(x + 2)² - 5

with p = 2 and q = - 5

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3 years ago

Please help i cant get this

Sveta_85 [38]

Answer:

0.264

Step-by-step explanation:

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3 years ago

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Bob sets the price of the plants according to their height in inches. A plant that is 9.5 inches high costs $2.28 in his store.

wel

Answer: $0.24

Step-by-step explanation:

9.5 inches --> $2.28
1 inch--->X
now cross multiply it and get,

9.5X = 2.28*1
X = 2.28/9.5

so its $0.24 per inch

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2 years ago

there are 68 children in the school there are 19 children on the playground how many more children are in the school than on the

Inga [223]

68 minus 19 is 49
So the answer is there are 49 more children in the school then on the playground.

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3 years ago

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