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3 years ago

10

PLEASE HELP QUICK AND EXPLAIN. I'M OFFERING 25PTS (It's only worth 10pts) AND BRAINLIEST ANSWER. I'VE POSTED LIKE 5 TIMES PLEASE

HELP ME

1 answer:

snow_lady [41]3 years ago

7 0

so what is the question that u are asking. I'll help you out

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Match each expression to its equivalent standard form.

Aleksandr [31]

Let's expand the products they are all in the form

$(a+b)(a-b)=a^2-b^2$

For the first one we have a=x and b=2i:

$(x+2i)(x-2i)=x^2-(2i)^2=x^2+4$

For the second one we have a=x-2 and b=2i:

$(x-2+2i)(x-2-2i)=(x-2)^2-(2i)^2 = x^2-4x+4+4=x^2-4x+8$

For the third one we have a=x+1 and b=i:

$(x+1+i)(x+1-i)=(x+1)^2-i^2=x^2+2x+1+1=x^2+2x+2$

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4 years ago

Mrs. Cervantes wants to paint her windmill. It has six sides, each of which is 3.5 feet wide by 11 feet tall. How many square fe

wolverine [178]

Answer:

231 ft²

Step-by-step explanation:

Given that :

Dimension of each side = 3.5 feets by 11 feets

Area of each side :

Length * width = (3.5 * 11) feets = 38.5 ft²

Number of sides = 6

Hence, number of square feets to paint :

Number of sides * area of each side :

6 * 38.5 ft²

= 231 ft²

7 0

3 years ago

Giving Brainliest to whoever answers well & first.

Ne4ueva [31]

Hopefully this helped :D

7 0

3 years ago

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write a linear equation that models the cost y of one person going on X rides at the fair graph the equation

Sveta_85 [38]

constant cost of 12

$1 for rides.

the number of rides you take is unknown, x

so its f(x) = 1x +12 or x+12

so if you rode 20 rides its

f(20) = 20+ 12 =32

4 0

4 years ago

Please answer the question attached, marking brainliest (serious answers only)

Mandarinka [93]

Step-by-step explanation:

By Exterior Angle Theorem,

81° + b = 117°.

=> b = 117° - 81° = 36°.

8 0

3 years ago

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