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MatroZZZ [7]
3 years ago
5

2a+4(7+5a)I need help

Mathematics
2 answers:
kolezko [41]3 years ago
6 0

2a+4(7+5a)

Distribute 4 into 7 and 5a

2a+28+20a

Combine like terms

Final Answer: 22a+28

Gekata [30.6K]3 years ago
3 0

Hello!

First of all, we undo the parentheses using the distributive propoerty.

2a+28+20a

We combine our like terms.

22a+28

I hope this helps!

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3 years ago
Count the number of 5-digit numbers (in the decimal system; integers from 10000 to 99999) which are not divisible by 11.
Alexxandr [17]

Answer:

So total number which is not divisible by 11 = 89999-8181 = 81819  

Step-by-step explanation:

We have to find the total numbers which are not divisible by 11 from 10000 to 99999

Total number from 10000 to 99999 = 99999-10000+1=90000

Just after 10000 the number which is divisible by 11 is 10010

And just below 99999 the number which is divisible by 11 is 99990

Using AP formula

T_N=a+(n-1)d, here a is first term, d is common difference and n is number of terms

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n= 8181

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4 0
2 years ago
A card is drawn from a well-shuffled deck of 52. Find p(drawing a face or a 4)
Musya8 [376]

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3 years ago
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Liula [17]

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Step-by-step explanation:

7 0
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Read 2 more answers
Find the volumeof eachfigure, round to th nearest hundredth I'd necessary
ad-work [718]

Determine the base of right triangle by using pythagoras theorem.

\begin{gathered} b=\sqrt[]{(15.7)^2-(8.5)^2} \\ =\sqrt[]{174.24} \\ =13.2 \end{gathered}

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\begin{gathered} A=\frac{1}{2}\cdot13.2\cdot8.5 \\ =56.1 \end{gathered}

Determine the volume of the figure.

\begin{gathered} V=A\cdot6.2 \\ =56.1\cdot6.2 \\ =347.82 \end{gathered}

So volume of the figure is 347.82 yards square.

6 0
1 year ago
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