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stepan [7]
2 years ago
7

Hi I did 1st 2 but need help with rest simplifying these and I need them explained step by step plz and thank you

Mathematics
1 answer:
Anna007 [38]2 years ago
4 0

Hey there ! Heres your answer :)

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What is the value of x in f(x)= (x-3)(x+2)?
trapecia [35]

Answer:

your answer is 2 hope help you

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2 years ago
five more than three times the number is one-third more than the sum of the number and itself. 5(3n)=1/3n n 5(3n)=1/3 n 3n 5=(n
sineoko [7]
The answer is 3n+5=(n+n)+1/3

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2 years ago
Find the measures of the numbered angles of the parallelogram.
frosja888 [35]

Answer:

1=40

2=140

3=40

Step-by-step explanation:

We know on side

140 and side 2 are equal

1 and 3 are equal

So since 140 and 2 are equal

140*2=280

360 degrees total in any 4 sided shape

360-280=80

80/2=40

6 0
3 years ago
I need help with my math homework
AleksandrR [38]
Download Photomath it helps and it gives you step by step or
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3 years ago
Read 2 more answers
From a box containing 10 cards numbered 1 to 10, four cards are drawn together. The probability that their sum is even is 21 21
ankoles [38]

Answer:

Step-by-step explanation:

We know that between 1 to 10 there are 5 even and 5 odd numbers.

We could get 4 even cards , 4 odd cards or 2 odd and 2 even cards

Let´s check all this combinations

Case 1: When all 4 numbers are even:  

We are going to take 4 of the 5 even numbers in the box so we have

5C4=5

Case 2: When all 4 numbers are odd:  

We are going to take 4 of the 5 odd numbers in the box, so we have

5C4=5

Case 3: When 2 are even and 2 are odd:

We are giong to take 2 from 5 even and odd cards in the box so we have

 

5C2 * 5C2

Remember that we obtain the probability from

\frac{Number-of-favourable-Outcome}{Total-number-of-outcomes}

So we have the number of favourable outcomes but we need the Total cases for drawing four cards, so we have that:  

We are taking 4 of the 10 cards:

10C_4=210

Hence we have that the probability that their sum is even

\frac{5+5+100}{210}=\frac{11}{21}

8 0
2 years ago
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