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eduard
2 years ago
7

-7a - 6a simplifyed?

Mathematics
1 answer:
Jobisdone [24]2 years ago
8 0

Answer:

-13a

Step-by-step explanation:

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In a recent survey, three out of every five students said they would prefer going to a water park for the class trip.
zhuklara [117]

Answer:

the answer is d

Step-by-step explanation:

Just multiply and divide

8 0
3 years ago
Find the inverse of the function.<br> f(x) = -3x + 7
LUCKY_DIMON [66]
F(x) = -3x + 7
y = -3x + 7
x = -3y + 7
-3y + 7 = x
-3y = x - 7
y = -1/3x + 7/3
f^-1(x) = -1/3x + 7/3
8 0
2 years ago
Can someone help me out?
stira [4]

Answer:

  40 degrees

Step-by-step explanation:

A triangle solver tool can find the angle easily. It is 39.8°, which rounds to 40°. Apps are available on some calculators, on the Internet, and for iOS and Android phones and tablets.

___

You may be expected to solve this using the Law of Cosines. If we name the sides ...

  • a = 1.75
  • b = 3.00
  • c = 2.00

the law of cosines tells us the relationship is ...

  c² = a² + b² -2ab·cos(θ)

Then the angle is ...

  θ = arccos((a² +b² -c²)/(2ab)) = arccos((3.0625 +9 -4)/(2·1.75·3))

  = arccos(8.0625/10.5) ≈ 39.838° ≈ 40°

4 0
3 years ago
What<br> Is the volume of this object
ad-work [718]

Answer:

100

Step-by-step explanation:

5x4=20

20x5=100

8 0
3 years ago
Read 2 more answers
-6 3/5 - (-7 4/15) + 2 1/5
Ilya [14]

Answer:2.87

Step-by-step explanation:

3 0
3 years ago
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