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Pachacha [2.7K]
3 years ago
5

PPPPPLLLLLZZZZZZZ HHHHEEEELLLLPPPP will give brainley to first to answer (anyone after will get deleted) thxxxxxxx

Mathematics
1 answer:
Lilit [14]3 years ago
8 0

Answer:

The answer for this is the thrid one 1/4

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Mary's Mum said she would pay 2/5 of the cost of
Alexus [3.1K]

Answer:

66 dollars im pretty sure

Step-by-step explanation:

5 0
3 years ago
Simplify: 16z3 + (-21z3)
anzhelika [568]
16 z3 + ( - 21 z3 ) :

Remove parentheses :

= 3 * 16 z - 3 * 21 z
  
=  48 z -  63 z

= - 15 z

hope this helps!.

8 0
4 years ago
-2=-2/3x <br> write in standard form pls answer quick
IrinaVladis [17]

Answer:

2x=6

Step-by-step explanation:

7 0
3 years ago
Ex 2.8<br> 3. find the maximum value of y for the curve y=x^5 -3 for -2≤x≤1
harkovskaia [24]
y=x^5-3\\ y'=5x^4\\\\ 5x^4=0\\ x=0\\ 0\in [-2,1]\\\\ y''=20x^3\\\\&#10;y''(0)=20\cdot0^3=0

The value of the second derivative for x=0 is neither positive nor negative, so you can't tell whether this point is a minimum or a maximum. You need to check the values of the first derivative around the point.
But the value of 5x^4 is always positive for x\in\mathbb{R}\setminus \{0\}. That means at x=0 there's neither minimum nor maximum.
The maximum must be then at either of the endpoints of the interval [-2,1].
The function y is increasing in its entire domain, so the maximum value is at the right endpoint of the interval.

y_{max}=y(1)=1^5-3=-2
4 0
3 years ago
Casey is trying to run a certain number of miles by the end of the month if Casey is 60% of the way to achieving our goals and s
astra-53 [7]

Answer:

40 miles is her goal.

Step-by-step explanation:

The problem says that 24 miles is 60% of her goal for that month.

You cab make a proportion with x being the goal for the whole month.

24/x = 6/10

You cross multiply and get:

6x = 24 x 10

6x = 240

x = 40

40 miles is the answer.

7 0
3 years ago
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