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raketka [301]
3 years ago
10

Please help me i really need help please

Mathematics
2 answers:
Vanyuwa [196]3 years ago
8 0

Answer:

7: 100

8: 40

9: 74

Step-by-step explanation:

Serga [27]3 years ago
6 0

Answer:

7. x= 100 8. x= 40 and 9. x= 74

Step-by-step explanation:

x + 45 +35=180(sum of angle of triangle )

or, x+ 80=180

or, x=180-80

or, x=100

same process as above for all

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Write 9− 16x⁴ as the product of two factors.
Marysya12 [62]

Answer:

The two factors will be =(3+4x^2)\ and\ (3-4x^2)        

Step-by-step explanation:

We have given the equation 9-16x^4

We know the algebraic equation a^2-b^2=(a+b)(a-b)

As  9-16x^4 can be written as 3^2-(4x^2)^2, as square of 3 is 9 and square of 4x^2 is 16x^4

So 9-16x^4=3^2-(4x^2)^=(3+4x^2)(3-4x^2)

So the two factors will be =(3+4x^2)\ and\ (3-4x^2)

6 0
3 years ago
The Bill for dinner at Dave and Busters last night was $62.20. The waiter received an 18% tip. How much of a tip did the waiter
notsponge [240]
11.196 or 11.20 is the answer
3 0
3 years ago
I need help with #11 MULTIPLE CHOICE
wel

Answer:

d

Step-by-step explanation:

8 0
3 years ago
a classroom has a length of 20 feet and a width of 30 feet. The headmaster decided that tiles will look good in that class. if e
iogann1982 [59]
The area of the room must equal the sum of the areas of the tiles...

20*30=n(2*3)

600=6n

n=100

So 100 tiles are needed.
8 0
3 years ago
Read 2 more answers
Zack flips a coin a rolls a number cube with sides labeled 1 to 6. What is the probability that he gets heads and a number great
Nitella [24]
To get heads: 1/2 because there are two sides to a coin.

There are 6 sides on a cube and 2 numbers are greater than 4 (5 and 6) so 2/6

Now multiply: 1/2 * 2/6 = 2/12 = 1/6

1/6 is the final answer.
7 0
3 years ago
Read 2 more answers
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