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Answer:

2401

Step-by-step explanation:

7*7*7*7=2401

Answer:

28

Step-by-step explanation:

Answer and explanation:

Null hypothesis: p is not 54%

Alternative hypothesis : p is equal 54%

First find standard deviation

Standard deviation is:

σ = √[ P ( 1 - P ) / n ] = √[ 0.54×0.46/220 ] =0.033

The z score is calculated p-P/σ = (0.54-0.50)/0.033 = 1.2121

Therefore we can conclude that proportions are not same and fail to reject the null hypothesis

Answer:

Step-by-step explanation:

11y-36=63

11y=99

y=9

Answer:

i think that looks right

Step-by-step explanation:

what do you have to do??

Answer:

-21

Step-by-step explanation:

Answer:

Option b-21

As coefficient is the number before variables

and here the number before is -21

Answer:

2/3 is in simplest form, the other three fractions can be reduced

Answer:

5, -20

Step-by-step explanation:

Given the equation (3m+2n−6) and (−4−6m+7n).

Also, given that we're told that

n = -2 and

m = 5, if we take a rather direct approach by substituting like for like, we have

(3m+2n−6) = (3 * 5 + 2 * -2 - 6)

(3m+2n−6) = 15 - 4 - 6

(3m+2n−6) = 15 - 10

(3m+2n−6) = 5

(−4−6m+7n) = (-4 - 6 * 5 + 7 * 2)

(−4−6m+7n) = -4 - 30 + 14

(−4−6m+7n) = -34 + 14

(−4−6m+7n) = -20

Therefore, we proceed to conclude that the answers are 5 and -20 respectively

Answer:

62 x 30 is 1860

Step-by-step explanation:

Answer:

(14)3 is just 14 x 3. The answer is 42

Answer:

24 teaspoons

Step-by-step explanation:

2 times 12 = 24

48 - 24 = 24

Answer:

B

Step-by-step explanation:

Answer:

.c

Step-by-step explanation:

Answer:

y= 3(x-2)^2-1

Step-by-step explanation:

Answer:

The second one (3x, 9x)

Step-by-step explanation:

Like terms are the terms that either have the same variable or have no variable.

3x and 9x are the like terms in the given expression.

The given expression is 3x+7+9x+24y+2x².

Like terms are those terms whose variables and their exponent power are the same. The coefficient of these variables can be different. Algebraic-like terms are terms that are similar to each other

In the expression 3x+7+9x+24y+2x²

Terms 3x and 9x have the same variables and their exponents also same.

So, 3x and 9x are like terms

Therefore, 3x and 9x are the like terms in the given expression.

To learn more about the like terms visit:

https://brainly.com/question/14557679.

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Answer:

0.175 is a decimal and 17.5/100 or 17.5% is the percentage for 7/40.

Answer: 0.175

Step-by-step explanation:

Answer:

23.3

Step-by-step explanation: 5x4 = 20    and 5x 2/3 = 3.3    i hoped i helped

Answer:

Decimal::::::: 23.3333333333

Fraction :)__---------- 23.3333333/10000000000

Step-by-step explanation:

As we have 1 digit after the decimal point, we multiply both numerator and denominator by 10, or, simply shift 1 decimal place to the right. So, 23.3/100 = (23.3 x 10)/(100 x 10) = 233/1000. (This fraction is alread reduced, We can't reduce it any further).

Answer:

$75

Step-by-step explanation:

The average smoker pay 15% life insurance than the non-smoker

The monthly cost of a non-smoker is $500 per month

Therefore the amount that would be paid by the average smoker in a month can be calculated as follows

= 500 × 15/100

= 500 × 0.15

= 75

Hence the amount to be paid is $75

Answer:

The percentage of that vehicles whose speeds are between 62 miles per hour and 70 miles per hour

P(62≤X≤70) = 68.76

Step-by-step explanation:

Step(i):-

Given that the mean of the Population = 66miles per hour

Given that the standard deviation of the Population = 4 miles per hour

Let 'X' be the random variable in normal distribution

Let x= 62

[tex]Z = \frac{x^{-}-mean }{S.D} = \frac{62-66}{4} =-1[/tex]

let x=70

[tex]Z = \frac{70-66 }{4} = \frac{70-66}{4} =1[/tex]

Step(ii):-

The probability that vehicles whose speeds are between 62 miles per hour and 70 miles per hour

P(62≤X≤70) = P(-1≤Z≤1)

                  = P(z≤1) -P(Z≤-1)

                 = P(Z≤1)+P(Z≤1)

                 = 2×P(Z≤1)

                 = 2×0.3438

                 = 0.6876

The percentage of that vehicles whose speeds are between 62 miles per hour and 70 miles per hour

P(62≤X≤70) = 68.76

Answer:

E(x)  = -$0.05263

E(y) = -$0.05263

V(x) = 0.9972

V(y) = 32.23

the expectations are the same, both will lose the same amount of money if they play for 38 times.

Though Variance is different. The girl betting on colors has little chance to gain  and lose but the boy betting on number has huge deviation

Step-by-step explanation:

Given that; you place a 1-dollar bet on the number 17 at Las Vegas and your friend places a 1-dollar bet on black.

Let x represent your winnings and y represent your friends winnings

we know that, There are 18 black slots, 18 red slots and two green slots (0 and 00) on a US roulette wheel.

so, the chances of getting black(red) = 18/38

now, E(y) = (18/38)$1 + (20/38)(-$1)

E(y) = -$0.05263

Now, bets made on the chart of the various numbers 1 to 36 and zero, Just put a chip down in the middle of the square with the number you select. If it comes up, it pays 35-to-1. It is called a straight up bet.

hence, the chance of getting selected number will be 1/38

so E(x) will be;

E(x) = (1/38)$35 + (37/38)(-$1)

E(x)  = -$0.05263

So, V(x) will be;

V(x) = [ 1 - (1/19)² ]

= 1 - 0.00277

V(x) = 0.9972

V(y) = { [ (35)² × (1/38) ] - (1/19)² }

= 32.2368 - 0.00277

V(y) = 32.23

Therefore, the expectations are the same, both will lose the same amount of money if they play for 38 times.

Though Variance is different. The girl betting on colors has little chance to gain  and lose but the boy betting on number has huge deviation.

Answer:

$290

Step-by-step explanation:

Because 7.25×40=290

Answer:

The answer is y = 6x + 9.

-

Step-by-step explanation:

☆Remember: [tex]m =  \frac{y_2 - y_1}{x_2 - x_1} [/tex]

☆Slope-intercept: [tex]y = mx + b[/tex]

---

☆We need to find the slope first. So just plug in according to the slope formula!

[tex]m =  \frac{ - 3 - 3}{ - 2 - ( - 1)} = \frac{ - 6}{ - 1} = 6[/tex]

---

☆Now we need to find the y-intercept. We are going to plug in the slope and a set of coordinates to find the y-intercept.

[tex]y = mx + b \\ 3 = 6( -1 ) + b \\ 3 = - 6 + b \\ \frac{ + 6 = + 6 \: \: \: \: \: \: \: \: \: \: }{9 = b \: \: \: \: \: \: \: \: \: \: \: } [/tex]

---

☆Now all we need to do is plug in and we are done!

[tex]y = 6x + 9[/tex]

▪Happy To Help <3

Answer:

Step-by-step explanation:

12y + 40 ≥ 148

12y ≥ 108

y ≥ 9

Rupesh must mow at least 9 more yards to have

the $148 he needs.

Answer:

id.k  im sorry

Step-by-step explanation:

Answer: Rachel's payment will be $2,588.78

Step-by-step explanation:

Given that;

Loan amount L = $485,000

number of months n = 30 × 12 = 360

Interest rate per month C = 4.95 / (100 × 12) = 4.95/1200 = 0.004125

Now, using the formula

P = L[ c ( 1 + c )ⁿ / ( 1 + c )ⁿ - 1 )

we substitute

P = 485,000 × [ 0.004125 ( 1 + 0.004125 )³⁶⁰ / ( 1 + 0.004125 )³⁶⁰ - 1 )]

P = 485,000 × [ 0.01815619 / 3.4015 ]

P = 485,000 × 0.0053377

p = 2,588.78

Therefore, Rachel's payment will be $2,588.78

Answer:

$2845.65

Step-by-step explanation:

yurr

Answer:

x=2

Step-by-step explanation:

Answer:

Save the password and username of brainly, and the next time it happens you just have to login from the information (password and username) you saved. You won't lose your account then.

Hope this helps you!

Step-by-step explanation: