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Lina20 [59]
3 years ago
13

UNIT TEST HELP PLS

Mathematics
1 answer:
Lelechka [254]3 years ago
6 0
The correct answer is D

ay=x

Hope this helps you :D
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Celina says that each of the following expressions is actually a binomial in disguise:(Expressions in picture) For example, she
Juliette [100K]

Yes , she is right. All the remaining can be expressed in binomial.

II) 5x^3 * 2x^2 - 10x^4 + 3x^5 + 3x * (-2)x^4

10x^5 - 10x^4 + 3x^5 + -6x^5= 7x^5 - 10x^4 is a binomial

iii) (t+2)^2 - 4t = t^2 + 4t + 4 -4t = t^2 + 4 is a binomial

iv) 5(a-1) - 10(a-1) + 100 ( a-1) = 5a - 5 - 10a + 10 + 100a -100 = 95a -95 is a binomial

v) ( 2\pi  r -\pi  r^2)r - ( 2\pi  r -\pi  r^2)2r = 2\pi  r^2 -\pi  r^3 - 4\pi  r^2 + 2\pi  r^3 = -2\pi  r^2  + \pi  r^3 is also a binomial



4 0
3 years ago
A pyramid has cross-sectional shapes, taken parallel to its base, that are ______ to one another.
Wewaii [24]

Answer:

D. similar

Step-by-step explanation:

similar but not congruent to one another.

3 0
3 years ago
A tailor used 2 meters of string to make 10 Halloween masks. He used ___ of a meter for each mask.
Lostsunrise [7]
2 meters were used in 10 masks

2meters/10masks= 0.2meters per mask
5 0
3 years ago
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An adult elephant that is 10 ft tall casts a shadow that is 15 ft long. Find the length of the shadow that is a 8 ft telephone b
Fittoniya [83]

Answer:

12 feet long bc of cross multiplying then dividing the product by 10 which gives you 12!

5 0
3 years ago
Sin(-x)=-sinx for all values x​
Allushta [10]

Answer:

True

Step-by-step explanation:

This is just a general property to know, I don't want to prove it LOL

5 0
3 years ago
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