MATHEMATICS MIDDLE SCHOOL

Find PR. PLSSS HELP BRAINLIEST Pls..
Find PR. PLSSS HELP BRAINLIEST Pls.. - 1

Answers

Answer 1
Answer:

Answer:

PR = 6.9

Step-by-step explanation:

From the diagram, the following were obtained:

Hypo = 10

Opp = PR

Sin0 = 44°

Sin0 = opp /Hypo

Sin44° = PR/10

Cross multiply

PR = 10 x Sin44°

PR = 6.9
Answer 2
Answer:

Answer:

sin44 = PR÷PQ = 0.694÷1 × X÷10 = X = 6.94

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Isabella solved the following equation: 4x − 2x + 8 = 6(x + 4) Step Work Justification 1 4x − 2x + 8 = 6x + 24 Distributive Property 2 2x + 8 = 6x + 24 Combine like terms 3 −4x + 8 = 24 Addition Property of Equality 4 −4x = 16 Subtraction Property of Equality 5 x = −4 Division Property of Equality Which step has an incorrect justification?

Answers

Answer:

step 3 has incorrect justification.

Step-by-step explanation:

because it was combine like terms but 8 is still in left hand side. So,combine like terms 3 has incorrect justification.

Answer:

Step 3

Step-by-step explanation: Combine like terms but 8 is still in the left side, so combine like terms 3 has incorrect justification.

What does z stand for in 118/13 = 59/z

Answers

Basically they are subbing x with the letter z

Solve for y:-

10 + y = 28

Thanks!

Answers

To solve for y we have to use the INVERSE OPERATION of addition which is subtraction. Lets do it:-

10 + y = 28
y = ?
28 - 10 = y
28 - 10 = 18
y = 18

CHECK OUR WORK:-

10 + y = 28
y = 18
10 + 18 = ?
10 + 18 = 28
We were RIGHT!!!!

So, y = 18.

Hope I helped ya!! xD
Use the inverse operation to solve for x. 

10 + y = 28

10 + y = 28

y = 28 - 10

Answer:  y = 18

Tanisha's potato salad recipe calls for 3pounds of potatoes.She decides to make 3.5 times her regular recipe. How manpounds of potatoes should Tanisha buy? Show your work.

Answers

if tanisha decides to make 3.5 times her regular recipe, she would need 3.5 more for each ingredient. to find out how many pounds of potato she needs just multiply 3.5 and 3 to find out the amount of pounds. 3.5 times 3 equals 10.5 pounds. tanisha should buy 10.5 pounds of potatos      
What i did was multiply 3.5 and 3 and got 10.5
so your answer will be 10.5

I have 1/3 of a brownie. If 5/6 of a brownie fills one plate, how many plates can I fill?

Answers


1/3 of a brownie is only 2/6.  If it takes 5/6 to fill one plate,
then your 2/6 can fill only 2/5 = 40% of one plate.
You can fill two playes because 1/3=2/6 and 2/6 goes into 5/6 twice with 1/6 left over.

Someone rolls a six sided fair die 5 times. They consider it a success if they have a two or three on a die. Whats the probability of 2 successes? no successes? and at least 3 successes?

Answers

Answer:

2 successes =  80/243

0 successes = 32/243

at least 3 successes = 51/243

Step-by-step explanation:

Lets suppose we had the following sequence of 5 throws:-

2 or 3,  2 or 3 ,  then NOT 2 or 3 on last 3 throws

Probability of this is

1/3 * 1/3 * 2/3 * 2/3 * 2/3 = 8/243

There are  (5*4) / 2 = 10 ways of having this result  ( that is the number of combinations of 2 from  5   =  5C2 ).

So Prob(2 successes) = (8/243) * 10  = 80/243

Prob ( No successes) =  (2/3)^5 = 32/243

Probability of 3 successes = 1/3 * 1/3 * 1/3 * 2/3 * 2/3 *   5C3  

4/243 * 10 = 40 / 243

Probability of 4 successes =  (1/3)^4 * 2/3 * 5C4

= 10/243

Probability of 5 success = (1/3)^5 = 1 / 243

Prob(at least 3 successes) = 51/243

Answer:

2 successes =  80/243

0 successes = 32/243

at least 3 successes = 51/243

Step-by-step explanation:

Lets suppose we had the following sequence of 5 throws:-

2 or 3,  2 or 3 ,  then NOT 2 or 3 on last 3 throws

Probability of this is

1/3 * 1/3 * 2/3 * 2/3 * 2/3 = 8/243

There are  (5*4) / 2 = 10 ways of having this result  ( that is the number of combinations of 2 from  5   =  5C2 ).

So Prob(2 successes) = (8/243) * 10  = 80/243

Prob ( No successes) =  (2/3)^5 = 32/243

Probability of 3 successes = 1/3 * 1/3 * 1/3 * 2/3 * 2/3 *   5C3  

4/243 * 10 = 40 / 243

Probability of 4 successes =  (1/3)^4 * 2/3 * 5C4

= 10/243

Probability of 5 success = (1/3)^5 = 1 / 243

Prob(at least 3 successes) = 51/243
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