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liberstina [14]
2 years ago
13

Please Help!!!

Mathematics
1 answer:
Mkey [24]2 years ago
3 0
The equation looks like this:

26=x*3.5+8.50

where x is the number of pen you bought.

We solve it like this:
first, we subtract 8.50 from both sides:

17.50 =3.5*x

now we divide both sides by 3.5:
5=x

so you purchased 5 pens.

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Given below is the even-number function. Which of the following are equal to E(12)? Check all that apply. E(n) = 2n A. 24 B. E(6
Ray Of Light [21]
Ummmm i believe your answer is A. just divide next time :)
4 0
2 years ago
an anchor line for a tower needs to be replaced. the tower is 96ft tall. the anchor line is 105ft long. how far from the tower c
Fynjy0 [20]

Answer:

Let x be how far from the tower can it be placed

by Pythagorus theorem

x^2  + 96^2   = 105^2

x=√(105^2  -96^2 )=√1809 = 42.532340 = 42.5 ft


3 0
3 years ago
Which expressions are equivalent to 0.75(4h - 6)
Natasha2012 [34]
I have no idea but good luck man
8 0
2 years ago
Probability.
swat32

Answer: 0.0386

Step-by-step explanation:

Given: The probability hat the frozen chickens contain enough salmonella bacteria to cause illness if improperly cooked : p= 0.30

Sample size : n = 12

Let x = Number of contaminated chickens

Here , two outcomes for any chicken (either contaminated or not) , so it follows binomial distribution.

Binomial probability formula:

P(X=x)  = \ ^nC_x p^x(1-p)^{n-x}

The probability that the consumer will have more than 6 contaminated chickens :-

P(X>6)=P(X=7)+P(X=8)+P(X=9)+P(X=10)+P(X=11)+P(X=12)\\\\=^{12}C_6(0.3)^6(0.7)^6+^{12}C_7(0.3)^7(0.7)^5+^{12}C_8(0.3)^8(0.7)^4+^{12}C_9(0.3)^9(0.7)^3+^{12}C_{10}(0.3)^{10}(0.7)^2+^{12}C_{11}(0.3)^{11}(0.7)^1+^{12}C_0(0.3)^{12}(0.7)^0

=0.03860084306\approx0.0386<em>  (simplified)</em>

<em />

Hence, the required probability = 0.0386

5 0
3 years ago
Are the expressions equivalent 7y + 21 and 3(2y+7)+y
DochEvi [55]

Answer:

Yes

Step-by-step explanation:

3(2y + 7) + y

6y + 21 + y

7y + 21

4 0
2 years ago
Read 2 more answers
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