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g100num [7]
3 years ago
9

Help FAST

Mathematics
1 answer:
zalisa [80]3 years ago
5 0

Answer:

9a^2-4b^2 is the correct answer.

Step-by-step explanation:

Difference of squares can be written as a^2 - b^2. This is equal to (a - b)(a + b)

In your answers, we see, 9a^2 - 4b^2. They are subtracting which is correct. 9 and 4 can also be rooted. 9 to 3 and 4 to 2 so

9a^2-4b^2 can be written as (3a-2b)(3a+2b)

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Add −1 3/10 + 2/5 using the number line.
DerKrebs [107]

Answer:

-9/10 (in between -1 and -4/5)

Step-by-step explanation:

-1 3/10+2/5

-1 3/10 + 4/10

-13/10+4/10

13/10-4/10=9/10

then put the negative sign in front of the 9/10.

(please give brainliest)

8 0
3 years ago
Can some one help me plz I really need help
Sonbull [250]
1. 2x + 50 = 100
subtract 50 on both sides and then divide by 2.

x = 25

180 - 100 = 80

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2. 7x - 4 = 87
add 4 on both sides and divide by 7.

x = 13

180 - 87 = 93

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3. 5x - 2 = 38
add both sides by 2 and divide by 5.

x = 8

180 - 38 = 142

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4. 14 + 6x = 134
subtract both sides by 14 and divide by 6.

x = 20

180 - 134 = 46

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5. x = 53

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6. x = 14

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6 0
3 years ago
What is the value of the next term of the sequence?
user100 [1]
Would it be (-3)^7? (-2187)
4 0
3 years ago
Davion wants to buy 4 tickets to a basketball game. He sees that there is a discount for $25 o his
Jlenok [28]

Answer:

$60 per ticket

Step-by-step explanation:

$215 is what it costs after the discount, so add the amount taken off, back on.

215+25

240

Then, divide by 4 to find the cost of each individual ticket.

240/4

60

6 0
2 years ago
How can I use models to help me divide??
Ivan
You can use models to help you divide by making the number of models as your divisor. For example let's say I am dividing 8 ÷ 2. So you would make 8 circles (doesn't have to be circle it can be whatever like squares) and then make groups of 2 until you run out of circles. Then how many groups there are is your answer. 8÷2=4. Hope I helped!
4 0
3 years ago
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