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Mkey [24]
3 years ago
7

Please help me on this :) I will give brainleast

Mathematics
2 answers:
kupik [55]3 years ago
6 0

Answer:

B. 6 cans for 5.16

Step-by-step explanation:

A. 0.89$ for 1 can

B. 0.86$ for 1 can

C. 0.88$ for 1 can

D. 0.90$ for 1 can

luda_lava [24]3 years ago
4 0

Answer:

b

Step-by-step explanation:

store a - 0.89 each can

store b - 0.86 each can

store c - 0.88 each can

store d - 0.90 each can

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Variable a is 4 more than variable b. Variable a is also 1 less than b. Which of the following pairs of equations best models th
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B=a+4 that is what the answer will be.
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3 years ago
The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.3 days and a standard de
inna [77]

Answer:

<em>The probability of spending between 4 and 7 days in recovery</em>

<em>P(4≤x≤7) = 0.5445</em>

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given mean of the Population μ = 5.3 days

Given standard deviation of the population 'σ' = 2 days

Let 'X' be the random variable in normal distribution

Let    x₁ = 4

Z_{1} = \frac{x_{1}-mean }{S.D} = \frac{4-5.3}{2} = -0.65

Let    x₂ = 7

Z_{2} = \frac{x_{2}-mean }{S.D} = \frac{7-5.3}{2} = 0.85

<u><em>Step(ii):-</em></u>

<u><em>The probability of spending between 4 and 7 days in recovery</em></u>

<em>P(4≤x≤7) = P(-0.65≤Z≤0.85)</em>

<em>              =  P(Z≤0.85) - P(Z≤-0.65)</em>

<em>             = 0.5 + A( 0.85) - ( 0.5 - A(-0.65) </em>

<em>             = 0.5 + A( 0.85) -  0.5 +A(0.65)   ( ∵A(-0.65) = A(0.65)</em>

<em>            =   A(0.85) + A(0.65)</em>

<em>           = 0.3023 + 0.2422</em>

<em>          = 0.5445</em>

<u><em>Final answer:</em></u><em>-</em>

<em>The probability of spending between 4 and 7 days in recovery</em>

<em>P(4≤x≤7) = 0.5445</em>

<em>            </em>

6 0
3 years ago
Ucini 12 VEGA LENA Gu 654 WENN WAREN Dita PHP The value of a share of stock decreases in value at a rate of $1.40 per hour durin
bekas [8.4K]

Answer: 1. x/h x h or $1.40/1h x 3.5h

2. $4.90

Step-by-step explanation: $1.40/1h x 3.5h= 1.4 x 3.5= 4.9

3 0
3 years ago
When do we flip an inequality?
tatuchka [14]

Answer:

When multiplying and dividing it by a negative

Step-by-step explanation:

4 0
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Use the grouping method to factor the polynomial below completely.<br> x^3 + 2x^2 + 5x + 10
Neko [114]

Answer:

The factors of x^3+2x^2+5x+10 are (x^2+5)(x+2)

Step-by-step explanation:

x^3+2x^2+5x+10

Group the expression by two:

=(x^3+2x^2)+(5x+10)

Factor out GCF in each group.

=x^2(x+2)+5(x+2)

Note:(The binomials in parentheses should be the same, if not the same... there is an error in the factoring or the expression can not be factored.)

Now factoring out the GCF which basically has you rewrite what is in parentheses and place other terms left together:

=(x^2+5)(x+2)

Thus the factors of x^3+2x^2+5x+10 are (x^2+5)(x+2)....

5 0
3 years ago
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