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Delvig [45]
3 years ago
8

Please help me with this math problem, urgent please

Mathematics
2 answers:
ivann1987 [24]3 years ago
7 0

Answer:

(5z +2) (z+1)

Step-by-step explanation:

5z^2 +7z +2

(5z +2) (z+1)

The first term when multiplied out is 5z^2  The last term is 2

The middle term is 2z+5z = 7z so this is the correct factorization

djverab [1.8K]3 years ago
6 0

problem decoded dude

follow meh

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5 more than the product of 23 and a number n
denis-greek [22]

Answer:

23n +5

Step-by-step explanation:

break down the expression into parts

5 more is +5

product is multiplication of 23 and n so 23n

then put it together

please give thanks :)

3 0
3 years ago
Read 2 more answers
A manager asked her employees how many times they had given blood in the last year. The results of the survey are given below. T
stira [4]

<u>Complete Question</u>

The probability distribution table is given below:

\left|\begin{array}{c|ccccccc}x&0&1&2&3&4&5&6\\P(x) &0.33 &0.24& 0.16& 0.12 &0.08 &0.05& 0.02\end{array}\right|

Answer:

1.61

Step-by-step explanation:

The probability distribution table is given below:

\left|\begin{array}{c|ccccccc}x&0&1&2&3&4&5&6\\P(x) &0.33 &0.24& 0.16& 0.12 &0.08 &0.05& 0.02\end{array}\right|

We want to determine the mean number of times a person gave blood.

Expected Value, E(x)=\sum x_i\cdot P(x_i)

=(0 \times 0.33)+ (1 \times 0.24)+(2\times0.16)+(3\times0.12)+(4\times0.08)+(5\times0.05)+(6\times0.02)\\=0+0.24+0.32+0.36+0.32+0.25+0.12\\=1.61\\

The mean number of times a person gave blood based on this survey is 1.61.

4 0
4 years ago
I need to simplify the equation
Oksanka [162]
Hey hon I don’t see the equation u need help with. Maybe try re uploading.
3 0
3 years ago
North America burned 4.5 x 1016 btu of petroleum in 1998. At this rate, how many BTU's will be burned in 9 year?
nikklg [1K]
Hello. Sonny solving this equation, multiplying 4.5 by 1016 will give us 4,572 BTU's a year. However, we are looking for the amount looking for the amount that will burn in 9 years. When you multiply 4,572 by 9, you get 41,148. 41,148 BTU's will be burned in 9 years.
4 0
3 years ago
Is 35% more than 2/5
eduard
If you convert 2/5 into a decimal which is 0.4 and multiply it by 100
you'll get 40 which means 2/5 is 40%
 so 35% is less than 2/5
6 0
3 years ago
Read 2 more answers
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