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Svetlanka [38]
2 years ago
14

500!!!!! please help ME I WILL GIVE BRANILEST AND ANYTHING ELSE U WANT AND I MEAN ANYTHING PLEASE PLEASE HELP ASAP

Mathematics
1 answer:
navik [9.2K]2 years ago
8 0

Answer:

first one is not. parallel second one is not and the third one is

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What is the factored form of this expression?<br> 9x^2-65y^2
Lesechka [4]

Answer:

Step-by-step explanation:

I suspect it is 64 not 65,

9x^2-64y^2

= (3x - 8y)(3x + 8y).

(If it is 65 there are no factors)

6 0
2 years ago
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The ratio of two numbers is 7 to 5. The sum of the numbers is 24. What are the numbers?
Kipish [7]

Answer:

14 and 10

Step-by-step explanation:

The ratio of the 2 numbers = 7x : 5x

The sum of the 2 numbers is 24, hence

7x + 5x = 24

12x = 24 ( divide both sides by 12 )

x = 2

7x = 7 × 2 = 14

5x = 5 × 2 = 10

Thus the numbers are 14 and 10

5 0
3 years ago
D)) The ratio of the monthly income and expenditure of Sunayana is 5 : 3. If she
Gnom [1K]

Answer:

Sunayana's income is ₹25000 and expenditures are ₹15000.

Step-by-step explanation:

Let i denote the monthly income and e denote the expenditures.

We know that the ratio of the monthly income to expenditure is 5:3. So, we can write the following proportion:  

\frac{i}{e}=\frac{5}{3}

Let's multiply both sides by e. This yields:

i=\frac{5}{3}e

We know that when the income is <em>increased</em> by 5000 and the expenditures are <em>decreased </em>by 3000, the new ratio is 5:2. So, we can write the following proportion:

\frac{i+5000}{e-3000}=\frac{5}{2}

Let's multiply both sides by (e-3000):

i+5000=\frac{5}{2}(e-3000)

Since we know that i=\frac{5}{3}e, substitute:

\frac{5}{3}e+5000=\frac{5}{2}(e-3000)

So, let's solve for the expenditures. Distribute the right:

\frac{5}{3}e+5000=\frac{5}{2}e-7500

Subtract \frac{5}{2}e from both sides:

-\frac{5}{6}e+5000=-7500

Subtract 5000 from both sides:

-\frac{5}{6}e=-12500

Multiply both sides by -6/5. So, the expenditures are:

e=\text{Rs }15000

We can use the original ratio to find Sunayana's income:

i=\frac{5}{3}e

Substitute 15000 for e. Evaluate:

i=\frac{5}{3}(15000)=\text{Rs }25000

So, Sunayana's income is ₹25000 and expenditures are ₹15000.

And we're done!

Edit: Wrong currency, sorry about that!

3 0
3 years ago
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4x^4+1+3x^3+2x by x^2+x+2​
Norma-Jean [14]

8 + -3x-15/2x^2+×+2 should be the correct answer.

7 0
2 years ago
Complete the equation so that it has infinitely many solutions.<br><br> 1/2(4−z)
Semenov [28]

Answer:

2−0.5z

Step-by-step explanation:

boom shacka laka so I've had this question before and i was just like whatever so i got it wrong and then i got the answer in the answer key :)

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3 years ago
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