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kati45 [8]
3 years ago
15

-8x - 4y = -24 -3x + 7y =25Solve.

Mathematics
2 answers:
andrew-mc [135]3 years ago
8 0
Answer: (1,4) x = 1, y = 4
andre [41]3 years ago
5 0

Answer:

I need the right problem.

Please read the whole thing.

Step-by-step explanation:

Hi. For this problem you are going to combine like terms.

For these problems, if you need any more help, you can search up algebra calculators on google.

I tried the problem and it said that there was too many equal signs. So, I would check to see if you asked this question correctly. I would ask your teacher.

Stay safe during these times,

The guy who tired to answer your question

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Plz help with this I don’t really get it
Greeley [361]

Answer:

D

Step-by-step explanation:

Associative Property of Multiplication is a(bc) = (ab)c

d is the only one that follows the rule

6 0
3 years ago
Find the future value of $50,000 at 6% compounded semiannually for ten years.
Nookie1986 [14]

Answer: $ 90305.56

Step-by-step explanation:

To find the future value of the amount, use the compound interest formula as follows:

A = P( 1 + i/m)^mn

Where; A = Future amount after n years;

P = Principal amount or amount deposited which is equal to $50, 000 in this question.

i = interest rate charge which is 6% in this case

m = number of times compounded per year, thus, m = 2 in this case since it is compounded semi-annually.

n = number of years which is 10 years in this case.

Substituting in the equation:

A = 50 000( 1 + 0.06/2) ^ 2(10)

   = $ 90305.56

6 0
4 years ago
An angle measures 42.6° less than the measure of its complementary angle. What is the measure of each angle?
Setler79 [48]

Answer:

Complementary angle 1st = 66.3°

Complementary angle 2nd = 23.7°

Step-by-step explanation:

Assume;

Complementary angle 1st = a

Complementary angle 2nd = a - 42.6°

Sum of complementary angles = 90°

So,

a + a - 42.6 = 90

a = 66.3

Complementary angle 1st = 66.3°

Complementary angle 2nd = 23.7°

3 0
3 years ago
An SRS of 27 students at UH gave an average height of 5.6 feet and a standard deviation of 1 feet. Construct a 90% confidence in
andriy [413]

Answer: f) None of the above

= ( 5.283, 5.917)

Therefore at 90% confidence interval (a,b) = ( 5.283, 5.917)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 5.6ft

Standard deviation r = 1.0ft

Number of samples n = 27

Confidence interval = 90%

z(at 90% confidence) = 1.645

Substituting the values we have;

5.6+/-1.645(1.0/√27)

5.6+/-1.645(0.192)

5.6+/-0.317 ft

= ( 5.283, 5.917)

Therefore at 90% confidence interval (a,b) = ( 5.283, 5.917)

3 0
4 years ago
What two numbers add to 10 and multiply to -24
Morgarella [4.7K]

Answer:

12 and -2

Step-by-step explanation:

12-2=10

12x-2=-24

I hope this helps!

7 0
4 years ago
Read 2 more answers
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