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sdas [7]
3 years ago
6

HELP imdjhehdhshshssksjish​

Mathematics
2 answers:
puteri [66]3 years ago
7 0

Answer:

40

Step-by-step explanation:

\dfrac{ab^2 - 5}{10}

a = 5; b = 9

First, substitute 5 for a and 9 for b.

\dfrac{ab^2 - 5}{10} =

= \dfrac{(5)(9)^2 - 5}{10}

= \dfrac{(5)(81) - 5}{10}

= \dfrac{405 - 5}{10}

= \dfrac{400}{10}

= 40

tensa zangetsu [6.8K]3 years ago
5 0
The answer to this question is 40
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Difference between real numbers and intergers​
Greeley [361]

Answer:

REAL NUMBER - real number is union of rational and irrational numbers .... whole numbers, natural numbers, integers, rational and irrational numbers are included in real numbers.

INTEGER -. integer means

means whole - valued positive or negative number or 0......

suppose 1, 2, 3, -6, -2....

whole numbers, such as 3, 4, but not 3.6 or √4 .

I hope you understand the difference between real numbers and integers.......

4 0
3 years ago
7.5 rounded to the nearest tenth
DIA [1.3K]

Answer: 7.5

Step-by-step explanation: It has no 100th so its 7.5

6 0
3 years ago
Read 2 more answers
A plane travels 2,000 kilometers at a speed of 900 kilometers per hour (kph) with no wind. when a tailwind is present, the plane
Nina [5.8K]

The meaning of the y-intercept exists in the time required for the plane to cover 2,000 kilometers at a speed of 900 kilometers per hour (kph) with no wind.  $2 \frac{2}{9}$ hours required for the plane to cover 2,000 kilometers at a speed of 900 kilometers per hour with no wind.

<h3>What is the meaning of the y-intercept for the function$t(x)=\frac{2,000}{900}+x $$?</h3>

The time it takes the plane to travel 2,000 kilometers with the tailwind, t(x), exists determined by the function

$t(x)=\frac{2,000}{900}+x $$

where x exists the increase in speed when the plane travels with the wind (tailwind).

The y-intercept exists at x=0, then

$&t(0)=\frac{2,000}{900}+x \\

$&t(0)=\frac{20}{9}=2 \frac{2}{9} hours

$2 \frac{2}{9}$ hours required for the plane to cover 2,000 kilometers at a speed of 900 kilometers per hour with no wind.

To learn more about y-intercept for the function refer to:

brainly.com/question/19552756

#SPJ4

3 0
2 years ago
A contractor is planning the acquisition of bulldozers needed for a new project in a remote area. From prior experience with thi
sleet_krkn [62]

Answer:

0.0256 ; 0.1536 ; 0.3456 ; 0.3456 ; 0.1296

Step-by-step explanation:

P, that each bulldozer will be operational for atleast 6 months = 0.6

p = 0.6 ; q = 1 - p = 1 - 0.6 = 0.4

Number of bulldozers purchased, n = 4

Probability that :

Exactly 0 bulldozer will be operational at the end of 6 months :

P(x = x) = nCx * p^x * q^(n-x)

P(x = 0) = 4C0 * 0.6^0 * 0.4^4

P(x = 0) = 1 * 1 * 0.0256

P(x = 0) = 0.0256

Probability that :

Exactly 1 bulldozer will be operational at the end of 6 months :

P(x = x) = nCx * p^x * q^(n-x)

P(x = 1) = 4C1 * 0.6^1 * 0.4^3

P(x = 1) = 4 * 0.6 * 0.064

P(x = 1) = 0.1536

Probability that :

Exactly 2 bulldozer will be operational at the end of 6 months :

P(x = x) = nCx * p^x * q^(n-x)

P(x = 2) = 4C2 * 0.6^2 * 0.4^2

P(x = 2) = 6 * 0.36 * 0.16

P(x = 2) = 0.3456

Probability that :

Exactly 3 bulldozer will be operational at the end of 6 months :

P(x = x) = nCx * p^x * q^(n-x)

P(x = 3) = 4C3 * 0.6^3 * 0.4^1

P(x = 3) = 4 * 0.216 * 0.4

P(x = 3) = 0.3456

Probability that :

Exactly 4 bulldozer will be operational at the end of 6 months :

P(x = x) = nCx * p^x * q^(n-x)

P(x = 4) = 4C4 * 0.6^4 * 0.4^0

P(x = 1) = 1 * 0.1296 * 1

P(x = 1) = 0.1296

8 0
3 years ago
Help me with this problem plz?
swat32
<h3>Solution:</h3>

71 = 4u - 9 \\  =  > 4u = 71 + 9 \\  =  > 4u = 80 \\  =  > u = 80 \div 4 \\  =  > u = 20

<h3>Answer:</h3>

u = 20

Hope it helps.

Do comment if you have any query.

5 0
2 years ago
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