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3 years ago

10

S and T are two-digit positive integers that have the same digits but in reverse order. If the positive difference between S and

T is less than 40, what is the greatest possible value of S minus T

1 answer:

Anvisha [2.4K]3 years ago

5 0

Answer :Answer: Did you get helped on this one?

Step-by-step explanation: okay yup yup have a good day OKAY

Step-by-step explanation: HAVE A GOOD ONE OKAY

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You want to make a necklace with 5 beads on it; you have a bag that contains 5 differently colored beads. You draw a bead from t

Vladimir [108]

There are 120 different combinations.

There are 5 to use for the first bead; then after it is used, 4 for the second; 3 for the third; 2 for the fourth; and 1 for the fifth and last bead:

5*4*3*2*1 = 120.

8 0

3 years ago

In order to estimate the difference between the average hourly wages of employees of two branches of a department store, two ind

liberstina [14]

Answer:

Step-by-step explanation:

Hello!

You have two populations of interest and want to compare them. If you define the study variables as:

X₁: average hourly wages of an employee of the Downtown store.

n₁= 25

X[bar]₁= $9

S₁= $2

X₂: average hourly wages of an employee of the North Mall store.

n₂= 20

X[bar]₂= $8

S₂= $1

Both samples taken are independent, assuming that both populations are normal and that their population variances are equal I'll use the Student's-t statistic with a pooled sample variance to calculate the Confidence interval:

95% CI for μ₁ - μ₂

(X[bar]₁-X[bar]₂) ± $t_{n_1+n_2-2; 1-\alpha /2} * (Sa*\sqrt{\frac{1}{n_1} +\frac{1}{n_2} } )$

$Sa^2= \frac{(n_1-1)S_1^2+(n_2-1)S_2^2}{n_1+n_2-2}$

$Sa^2= \frac{24*4+19*1}{25+20-2}= 2.67$

Sa= 1.64

$t_{n_1-n_2-2;1-\alpha /2} = t_{43; 0.975} = 2.017$

(9-8)±2.017* $(1.64*\sqrt{\frac{1}{25} +\frac{1}{20} } )$

[0.007636;1.9923]

I hope it helps!

6 0

3 years ago

4y + 12 = 7 - 5y thank you :)

riadik2000 [5.3K]

Y= -5 i am pretty sure

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3 years ago

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Graham decided to play football this year instead of getting a part-time job. Last year he made about $1,100 during football sea

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10,091 because it's a 10 season football season and he spends 9 dollars every game

Step-by-step explanation:

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3 years ago

Brainlist! :c y no one helping

katrin [286]

Answer:

C and D are same options

(D) $f(x) = x^2$

Step-by-step explanation:

$f(x) = {x}^{2} \\ plug \: x = - x \\ f( - x) = {( - x)}^{2} = {x}^{2} \\ f( - x) = f(x)$

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3 years ago