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2 years ago

(x-3)^(2)-(x+1)^(2) Remove the brackets and simplify

Mathematics

2 answers:

Alex2 years ago

8 0

Answer:

The correct answer to your question is -8

Dominik [7]2 years ago

7 0

Answer:

- 8x + 8

Step-by-step explanation:

(x - 3)² - (x + 1)² ← expand factors using FOIL

= x² - 6x + 9 - (x² + 2x + 1) ← distribute parenthesis by - 1

= x² - 6x + 9 - x² - 2x - 1 ← collect like terms

= - 8x + 8

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Help please I don’t understand

Phantasy [73]

The height of the object after 1 sec is 284 feet

<h3>Equation of height of an object</h3>

Given the equation of height of an object expressed as:

h(t) = -16t^2 + 300t

We are to find the height of the object after 1 sec. To do that, we will substitute t = 1 into the following expression

h(t) = -16t^2 + 300t

h(1) = -16(1)^2 + 300(1)

h(1) = -16 + 300

h(1) = 284ft

Hence the height of the object after 1 sec is 284 feet

Learn more on maximum height here: brainly.com/question/12446886

3 0

2 years ago

Travis earned 92 bonus points. Zoe earned b more bonus points than Travis. Write an expression that shows how many bonus points

Serga [27]

92 + b= the amount of points Zoe earned

7 0

4 years ago

Read 2 more answers

M-(10)=-20

Zina [86]

The answer is -10. I think about negative numbers on a number line with numbers being behind and in front of the zero. To check the answer you can imagine being on -10 and when it says to minus a number you always know that it’s going to go further into the negative. So -10-10 is -20.

6 0

3 years ago

6. The value of (tan 1° tan2º tan 3º ... tan 89°) is

Thepotemich [5.8K]

Answer:

Step-by-step explanation:

Using the trigonometric identities

tan(90 - x) = cotx , cotx = $\frac{1}{tanx}$

Given

tan1tan2tan3....................... tan87tan88tan89

= tan1tan2tan3............... tan(90-3)tan(90-2)(tan90 - 1)

= tan1tan2tan3.............. cot3cot2cot1

= tan1cot1tan2cot2tan3cot3 ........................

= 1 × 1 × 1 ×....................... × 1

= 1

4 0

3 years ago

You have 5 Red Marbles, 4 Green Marbles, and 3 Blue Marbles in a Bowl. You randomly pick 4 marbles from the bowl (without replac

makvit [3.9K]

Answer:

Step-by-step explanation:

In this case each one is an independent event, therefore, the multiplication of each one would be the final probability

We have 5 Red Marbles, 4 Green Marbles, and 3 Blue Marbles, that is, there are 5 + 4 + 3 12 Marbles in total.

Now if I draw a red one, the probability would be: 5/12

When drawing another red, the probability would be: 4/11

When taking the green: 4/10

When removing the blue: 3/9

Finally, the final probability is:

P = (5/12) * (4/11) * (4/10) * (3/9)

P = 0.020

In other words, the probability of this happening is 2%

7 0

3 years ago