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4 years ago

Multiply `(9 sqrt(y)+4)(8 sqrt(y)-6 )y > 0

Mathematics

1 answer:

brilliants [131]4 years ago

7 0

Answer:

y>9/16

Step-by-step explanation:

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There are 2 busses. Bus A can travel 125 miles in 3 hours and bus B can travel 85 miles or than bus A within the same time. What

Oksi-84 [34.3K]

The bus b can travel 85 miles make calculation the 3 hours - 85

6 0

3 years ago

How do I answer this Question? It’s phythagoras theorem!

zhuklara [117]

Answer:

C = 11.18 D= 20

Step-by-step explanation:

Let's start with C

Square root both areas of the squares

$\sqrt{25} =5$

$\sqrt{100}=10$

Then use the Pythagoras Theorem: $a^{2} +b^{2} =c^{2}$

$10^{2} +5^{2} =125$

$\sqrt{125} =11.18033989$ = C

Moving on to D

Square root both areas of the squares

$\sqrt{841} =29$

$\sqrt{441} =21$

29 is the hypotenuse, we are trying to find the other leg, so:

$29^{2} -21^{2} =400$

$\sqrt{400} =20$ = D

8 0

3 years ago

A smaller number is 3 less than half a larger number. The larger number is 10 times 1 less than the smaller number. Let x repres

Dvinal [7]

X=1/2y-3 would be for the smaller number and
Y=10(x-1) would be for the larger number.

6 0

3 years ago

Find m-1(x) if m(x) = x+3.

lawyer [7]

Step-by-step explanation:

m(x) = x+3

y = x+3

=> x = y-3

m`¹(x) = x-3

5 0

3 years ago

A test of hypothesis is conducted to determine whether annual income and education level are independent. It is determined that

kramer

Answer: We concluded that annual income and education level are not independent.

Step-by-step explanation:

For the given situation, the null and alternate hypothesis can be formulated as:

$H_0:$ annual income and education level are independent.

$H_a:$ annual income and education level are not independent.

Given, the value of test statistic is 24.32 and the critical value of test statistics is 13.32.

i.e. the test statistic value is greater than the critical value, thus we have enough evidence to reject the null hypothesis.

Therefore, we reject null hypothesis .

So , we concluded that annual income and education level are not independent.

5 0

4 years ago