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Nesterboy [21]
2 years ago
12

Pls help I’ll mark brainiestt!!

Mathematics
2 answers:
marissa [1.9K]2 years ago
7 0
I don’t know if this is right but worked it all out and this is what I got. Checked it with my teacher and they said it was correct. So maybe it will give you a boost!

djyliett [7]2 years ago
3 0

Answer:

multiply numbers ADD exponents

  1. 21^7
  2. 8^6
  3. x^7+2x^6-x^4
  4. 3x^3y^2
  5. 2x^2+4x
  6. 3x^4+7x^3

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Let x and y be two positive numbers whose sum is 175 and (x+3)(y+4) is a maximum
Vaselesa [24]

Answer:

Step-by-step explanation:

x+y = 175

y = 175 - x

f(x) = (x+3)(y+4)

= x(175-x) + 3(175-x) + 4x + 12

= 175x - x² + 525 - 3x + 4x + 12

= -x² +176x + 537

f'(x) = -2x + 176

maximum when x = 88

y = 175-x = 87

4 0
3 years ago
Which statement best describes the association between variable X and variable Y? Question 1 options: perfect negative associati
polet [3.4K]
The statement which best describes the association between the variables X and Y is the <em>moderate positive association</em>. It is observable that the values of X and Y are increasing, however, not in a perfect manner as there are some minor deviations. But nonetheless, the direction is clear and the values are close to each other so they have a moderate positive association.
5 0
3 years ago
Read 2 more answers
Helppp plz I will mark brainliestttt
coldgirl [10]

Answer:

Answer C

Step-by-step explanation:

Give brainliest

8 0
2 years ago
Read 2 more answers
Aneesha travels at 50 mph. Morris is traveling at 3 feet per second less than Aneesha. How fast is Morris traveling
vampirchik [111]

Speed of Morris is 47.95 mph

Step-by-step explanation:

  • Step 1: Convert 3 feet per second to miles per hour.

⇒ 3 ft/s = 3/1.467 mph (∵ 1 mph = 1.467 ft/s)

             = 2.05 mph

  • Step 2: Find the speed of Morris.

Speed of Morris = 50 mph - 2.05 mph = 47.95 mph

6 0
3 years ago
Mario and Luigi are in a race in their new cars. Luigi has a 1000 foot head start and he travels at a speed of 4000
frez [133]

Answer: why do they have so many cars what are you trying to ask and what does Mario have to do with this?

Step-by-step explanation:

please change your question.

8 0
2 years ago
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