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2 years ago

Find the product. (2x+3)(2x-3) A. 4x2 - 9 B. 4x2 +9 C. 4x2 –5x+9 D. 4x2 - 5x-9

Mathematics

1 answer:

Mademuasel [1]2 years ago

6 0

Answer:

A. 4x^2 - 9

Step-by-step explanation:

2x * 2x = 4x^2

2x * -3 = -6x

3 * 2x = 6x

-3 * 3 = -9

-6x + 6x = 0, so we're left with 4x^2 - 9

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Solve asap: 3(2y+10)=54 Within 10 mins pls 8th grade

inna [77]

Answer:

y = 4

Step-by-step explanation:

6y + 30 = 54

subtract 30 from each side

6y = 24

divide each side by 6

y = 4

7 0

3 years ago

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PLEASE PLEASE PLEASE HELP I NEED THIS BY 8:00pm!

Likurg_2 [28]

Answer:

1. $85

2. $90.10

3.$108.12

4.$54.06

Step-by-step explanation:

100-15=85 (15% of 100 is 15)

6 percent of 85 is 5.10. So 85 + 5.10=90.10

20 percent of 90.10 is 18.02. So add that to the total. 90.10+18.02=108.12

Now divide by 2 to get how much they each will pay 108.12/2 = 54.06

6 0

2 years ago

What is 2 times 5 to the power of 3

Vedmedyk [2.9K]

Hello there!

The question in number form is 2 x (5³).
The answer is 250.
Or
If it's like this: (2 x 5)³
Then the answer is 1000

Hope This Helps You!
Good Luck :)

8 0

3 years ago

PLZZZZZZZ HELPPPP

dolphi86 [110]

Answer:

The correct option is 1.

Step-by-step explanation:

It is given than the area of the triangle ABC is 46cm².

Area of a triangle is

$A=\frac{1}{2}\times base\times height$

Base of the triangle is AB and height of the triangle is CD.

$A=\frac{1}{2}\times AB\times CD$

$A=\frac{1}{2}\times AB\times 8$

$A=4\times AB$

The area of the triangle is 46cm².

$46=4\times AB$

$AB=\frac{46}{4}$

$AB=11.5$

Therefore the length of side AB is 11.5 cm. Option 1 is correct.

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3 years ago

The total cost of admission, A, to the circus for a group varies directly with the number of tickets purchased, t. If 3 tickets

Harman [31]

3t=105 and simplified is t=35

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3 years ago

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