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Juli2301 [7.4K]
3 years ago
13

Help me pls pls plshdhdvdvd

Mathematics
1 answer:
Ivan3 years ago
8 0
The answer is 5 and 7!
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PLZ HELP ASAP BEFORE I GET IT WRONG!!!
lord [1]

A. $960.

B. $940?

c. Neither.

I hope thiss helped! I could be wrong, but I do believe A. and C. are correct.

5 0
3 years ago
Which is a prime number<br>a.67<br>b.65<br>c.63<br>d.60
juin [17]
The answer is 67 :)))
4 0
3 years ago
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Six identical squares are cut from the corners and edges of an 80 cm by 50 cm cardboard rectangle. the remaining piece is folded
Anna11 [10]
Check the picture.

let the length of a side of each of the squares removed be x.

The box formed will have dimensions: 80-2x, 50-2x, x(the height)

So the volume can be expressed as a function of x as follows:

f(x)=(80-2x)(50-2x)x=[4000-160x-100x+4 x^{2} ]x=(4 x^{2}-260x+4000)x

so f(x)=4 x^{3}-260x^{2}+4000x

the solutions of f'(x)=0 gives the inflection points, so the candidates for maxima points,

f'(x)=12x^{2}-520 x +4000=0

solving the quadratic equation, either by a calculator, graphing software, or by other algebraic methods as the discriminant formula, we find the solutions

x=10 and x=33.333

plug in f(x) these values to see which greater:

f(10)=(80-20)(50-20)10=60*30*10=18000 cm cubed

f(33.333)=(80-66.666)(50-66.666)33.333= which is negative because (50-66.666)<0



Answer: 18000 cm cubed

5 0
3 years ago
Read 2 more answers
Two cards are drawn from a standard deck of cards without replacement. Find the probability of drawing a heart and a club in tha
Katyanochek1 [597]

Answer:

4/663

Step-by-step explanation:

Probability is the likelihood or chance that an event will occur.

Probability = Expected outcome/Total outcome

Since we are to draw from a pack of card, the total outcome will be 52

Since there are 4 hearts;

Pr(selecting heart) = 4/52 = 1/13

If a club is then selected without replacement, the total number of card remaining will be 51;

Pr(selecting a heart) = 4/51

probability of drawing a heart and a club in that order = 4/52 * 4/51

probability of drawing a heart and a club in that order = 16/2652

probability of drawing a heart and a club in that order = 4/663

8 0
3 years ago
Could you anwser this for me​
IgorLugansk [536]

Answer:

last answer

Step-by-step explanation:

I factored it, but I might have done it wrong.

3 0
3 years ago
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