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kvasek [131]
2 years ago
6

Esme says the two expressions 4x - 5.2y + 6y + 7.9x - 8x and 19.9x + 11.2y are equivalent. Is she correct? Explain how you know.

If she is incorrect, provide the correct response in standard form.
Mathematics
1 answer:
Ipatiy [6.2K]2 years ago
7 0

Answer:

No, she's incorrect. 4x - 5.2y + 6y + 7.9x - 8x = 3.9x + 0.8y

Step-by-step explanation:

To find out if Esme is correct, we have to group the like terms and simplify.

  • (4x+7.9x-8x) + (-5.2y+6y)
  • 3.9x+0.8y

As you can see, 3.9x + 0.8y is the correct simplified expression, thus making Esme incorrect.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

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Given f(2) = 12, which of the following could be an equation of the function?
sergiy2304 [10]
Answer is B. f(x) = 4x + 4 When we use x=2 in this function f(2) = 4(2) + 4 f(2)= 8 + 4 f(2) = 12 So the answer is B.
8 0
3 years ago
Find the magnitude and direction of the vector. Round the length to the nearest tenth and the degree to the nearest unit. Diagra
astra-53 [7]
Refer to the diagram shown below.

The vector has a magnitude of a and a direction of θ degrees south of west. 

Use the Pythagorean Theorem to calculate a.
a² = (-530)² + (-200)² = 320900
a = √(320900) = 566.48 mi ≈ 566.5 mi

By definition,
tan θ = (-200)/(-530) = 0.3774
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7 0
4 years ago
Julia can sell a certain product for $75 per unit. Total cost consists of a fixed overhead of $4000 plus production costs of $50
marusya05 [52]
Answer = 160 units

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6 0
2 years ago
Find the missing side length. if necessary , round you’re answer to the nearest tenth ! pls help
Natalija [7]

Answer:

39

Step-by-step explanation:

1. Use the Pythagorean theorom: a^2+b^2=c^2.

C is the missing side here, which is the hypotenuse of the triangle. The other two sides and be put into the equation either way. Doesn't matter the order.

15^2 + 36^2 =c^2

2. Evaluate 15^2 and 36^2 and add the results.

15^2 = 225

36^2 = 1,296

225+1,296= 1,521

3. Take the square root of the answer.

√1521 = 39

6 0
3 years ago
Albert thought of a number, added 5, multiplied the result by 2, took away 6 and then divided by 2 to give an answer of 8
ValentinkaMS [17]
The answer is 6 ....you just have to do the steps backwards and it will result faster.
6+5=11
11*2=22
22-6=16
16/2=8
4 0
3 years ago
Read 2 more answers
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