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3 years ago

URGENT HELP MATH HOMEWORK DUE IN LIKE 2 MINUTES!!!1

Mathematics

1 answer:

TiliK225 [7]3 years ago

3 0

Answer:

Dantes mistake is that he mutiplied the exponents which has the same base so you can add it. The answer should be $5^{7}$ .

Alex mistake is that he didnt subtract so it should be $8^{3} - (-8^{-2})$ and then you subtract the exponents and get $8^{5}$

Step-by-step explanation:

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Which set of angle measures could form a triangle

puteri [66]

Although this triangle is obtuse, it does not have two sides of equal length. Its three sides are all different lengths, so it is scalene. The correct answer is obtuse scalene. The corresponding sides are opposite the corresponding angles.

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4 years ago

Andy promises opie that he will give him 5000 upon his graduation from college at mayberry u. How much must andy invest today to

san4es73 [151]

Answer: Andy should invest RS. 2784.19 for 12 years .

Step-by-step explanation:

Since we have given that

Amount = Rs. 5000

Time = 12 years

Rate of interest = 5%

So, We need to find the sum:

Using "Compound interest" , we get :

$A=P(1+r)^t\\\\5000=P(1+0.05)^{12}\\\\5000=P(1.05)^{12}\\\\\dfrac{5000}{1.05^{12}}=P\\\\2784.19=P$

Hence, Andy should invest RS. 2784.19 for 12 years .

6 0

3 years ago

Tessa bought stock in a restaurant for $278.00. Her stock is now worth $339.16. What is the percentage increase of the value of

Natasha2012 [34]

The percentage increase of the value of Tessa's stock is 22%

Step-by-step explanation:

The percentage of increase = $\frac{New-old}{old}$ × 100%, where:

New: is the value after increasing
Old: is the value before increasing

Tessa bought stock in a restaurant for $278.00.

Her stock is now worth $339.16

We need to find the percentage of increase of the value of

Tessa's stock

∵ The initial value of the stock = $278.00

∴ The value of the stock after increasing = $339.16

- Substitute these values in the rule above

∴ The percentage of increasing = $\frac{339.16-278}{278}$ × 100%

∴ The percentage of increasing = 0.22 × 100%

∴ The percentage of increasing = 22%

The percentage increase of the value of Tessa's stock is 22%

Learn more:

You can learn more about percentage in brainly.com/question/12284722

#LearnwithBrainly

8 0

3 years ago

A function has the function rule y = -7 x - 2. If the input is -4, what is the output? 26 -30 -26 14

GaryK [48]

Answer:

Step-by-step explanation:

Since the input is -4, x = -4. The equation then is y = -7(-4) -2

A negative times a negative is a positive, so -7 times -4 is 28.

Now the equation reads y = 28 - 2

Then obviously you just subtract the two and then you get 26.

5 0

3 years ago

Read 2 more answers

Find the solution of the system of equations. -9x - 5y = -18 4x + 5y = 33

Rus_ich [418]

Answer:

x=-3, y=9. (-3, 9).

Step-by-step explanation:

-9x-5y=-18

4x+5y=33

---------------

-5x=15

x=15/-5

x=-3

4(-3)+5y=33

-12+5y=33

5y=33-(-12)

5y=33+12

5y=45

y=45/5

y=9

6 0

3 years ago

Read 2 more answers