please help i don’t understand, thanks! :)

Answer:

Step-by-step explanation:

k=2

t=5

2+6=4   6=2  1=3

2=6

5=15

Now their ages are 6:15

Answer:

[tex]-10x^3y^2+5x^2y^3-2x^3+7y^2[/tex]

Answer: tex.z-dn.net/?f=-10x%5E3y%5E2%2B5x%5E2y%5E3-2x%5E3%2B7y%5E2

Step-by-step explanation: Hope this helps. Have a good night ma´ám/sir. Be safe!

Answer:

The probability that the sample mean would differ from the population mean by greater than 33 millimeters is 0.0174

Step-by-step explanation:

[tex]Mean = \mu = 145 mm[/tex]

Standard deviation =[tex]\sigma = 7[/tex]

We are supposed to find the probability that the sample mean would differ from the population mean by greater than 3 millimeters

[tex]P(|x-\mu|>33)=1-P(|x-\mu|<3)\\P(|x-\mu|>33)=1-P(-3<|x-\mu|<3)\\P(|x-\mu|>33)=1-P(\frac{-3}{\frac{\sigma}{\sqrt{n}}}<\frac{|x-\mu|}{\frac{\sigma}{\sqrt{n}}}<\frac{-3}{\frac{\sigma}{\sqrt{n}}})\\P(|x-\mu|>33)=1-P(\frac{-3}{\frac{7}{\sqrt{31}}}<\frac{|x-\mu|}{\frac{\sigma}{\sqrt{n}}}<\frac{-3}{\frac{7}{\sqrt{31}}})\\P(|x-\mu|>33) =1-P(-2.38<z<2.38)\\P(|x-\mu|>33) =1-(P(z<2.38)-P(z<-2.38))\\[/tex]

Using Z table

                   = 1-(0.9913-0.0087)

                  =0.0174

Hence  the probability that the sample mean would differ from the population mean by greater than 33 millimeters is 0.0174

Answer:

15.6

Step-by-step explanation:

I hope this helps!

Answer:

15 3/5

Step-by-step explanation:

9 3/4 ÷ 5/8

39/4 ÷ 5/8

39/4 x 8/5

39 x 8 / 4 x 5

312 / 20

312 ÷ 4 / 20 ÷ 4

78/5, or 15 3/5

Answer:

0.018=9/500 as a fraction

Step-by-step explanation:

Answer:

A. There are two complex roots

Step-by-step explanation:

Just took the test

If the discriminant of a quadratic equation is equal to Negative 8, there are two complex roots.

The discriminant of a quadratic equation is given as;

[tex]b^2 - 4ac>0 \ \ ( 2 \ solutions; 1 \ positive \ and \ 1 \ negative\ solution)\\\\b^2 -4ac = 0 \ \ (1 \ real \ solution)\\\\b^2 - 4ac \ < 0 \ \ (complex \ root, \ no \ solution)[/tex]

A discriminant of negative 8 falls with last category in the solution above.

[tex]b^2 - 4ac <0 \ \ (eg \ -8),[/tex]

[tex]x = +/-\sqrt{-8} \\\\x = \sqrt{-8 } \ \ or \ \ -\sqrt{-8} \ \ \ \ \ (2 \ complex \ roots)[/tex]

Thus, if the discriminant of a quadratic equation is equal to Negative 8, there are two complex roots.

Learn more about discriminant of quadratic equation here: https://brainly.com/question/4318614

Answer:

75 children.

Step-by-step explanation:

If the amount of children is 5 times as many adults, you just need to multiply 15x5.

15x5=75  The number of children invited to the party is 75.

If you wanted this in an algebraic equation, it would look similar to this...

15(5)=x To solve for x, multiply 15 by 5.

75=x

Hope this helps! Have a great day ^^

Answer:

3:5

Step-by-step explanation:

There were 100 milk cartons there and someone took 100-x=40.  Add 100 on both sides 40-100=-60 so 60 milk cartons were taken.  So the ratio would be 60:100, which can be simplified further 30:50 15:25 3:5.

well,

2/3x is the slope, and b is the y-intercept, y is the y coordinate

it can only be one of the last 2

It is the LAST one

x=6

y=-5

-5 = 2/3(6)-9

-5 = 4-9

-5 = -5

the answer is the last one

Answer:

Step-by-step explanation:

part d

y=2/3x-9

Answer:

you need to provide more information lol

Step-by-step explanation:

e

Answer:

Its AGI

Step-by-step explanation:

Source(s): dude, trust me

i think 1st one is the answer

Answer: Yes wheels affect the force, with wheels it moves longer and faster without wheels it doesn't move as much and doesn't go fast.

So they should; Share their conclusion

Step-by-step explanation: This really ez

Answer:

Step-by-step explanation:

g(2)= 5-9(2)

= -13

f(g(2))= 5+3(-13)

= -34

Answer:

g(2) = -13

f(g(2)) = -34

Explanation:

For g(2), just substitute 2 in for the x, multiply, and simplify.

g(x) = 5-9(x)

g(2) = 5-9(2) = 5-18 = -13

For f(g(2)), substitute this output in for x, multiply, and simplify.

f(x) = 5 + 3(x)

f(g(2)) = 5 + 3(g(2)) = 5 + 3(-13) = 5-39 = -34

Answer:

To multiply mixed numbers:

Step-by-step explanation:

1. convert to improper fractions

2. top * top

3. bottom * bottom

4. convert back into a mixed number

Answer:

Hi!

In these questions you're being asked to multiply mixed numbers. The easiest way to do this is to convert the mixed numbers to improper fractions, and then multiply them in that form.

For the first question:

[tex]1\frac{3}{5} = \frac{8}{5} ; 1\frac{2}{5} =\frac{7}{5} \\[/tex]  To convert the mixed numbers to improper fractions, you just     multiply the denominator by the whole number, and then add it to the current  numerator, forming the new numerator. The denominator stays the same.

[tex]\frac{8}{5} *\frac{7}{5} = \frac{56}{25}[/tex]       Next, multiply together the numerators, and then multiply together the denominators.

[tex]\frac{56}{25} = 2\frac{6}{25}[/tex]

Answer:

Exact Form:

x =1016 /3

Decimal Form:

x = 338. ¯ 6

Mixed Number Form:

x = 338  2/3

Step-by-step explanation:

Answer:

c. Both Tami and Vu performed equally well.

Step-by-step explanation:

To solve this question, we use z score

The formula for calculating a z-score is is z = (x-μ)/σ

where x is the raw score

μ is the population mean

σ is the population standard deviation.

a) For Tami , who took MCAT

We are told:

Scores on the MCAT follow a Normal distribution with a mean of 505.6 points and a standard deviation of 9.3 points.. If Tami earns 524.2 points on the MCAT.

x = 524.2 points

μ = 505.6 points

σ = 9.3 points

z = 524.2 - 505.6/9.3

= 2

The z score for Tami is 2

For Vu, who took LSAT

We were told:

Scores on the LSAT follow a Normal distribution with a mean of 150.7 points and a standard deviation of 10.2 points. Vu earns 171.1 points on the LSAT.

x = 171.1 points

μ = 150.7 points

σ = 10.2 points

z = 171.1 - 150.7/10.2

z = 2

The z score for Vu is also equal to 2

Therefore, we can say the bout Tami and Vu performed equally well.

Option c is the correct answer.

Answer:

positive 3

Step-by-step explanation:

Answer:

3

Step-by-step explanation: The opposite of -3 is positive 3

Answer:

The answer would be 1.

Answer:

They behave similarly in chemical reactions

Step-by-step explanation:

Because their atomic numbers are different, the elements each have a different number of protons and electrons. They belong to the same group, not the same period.

Answer:

3 new tires for $210; 4 new tires for $250

Step-by-step explanation:

Answer:

47.008

Step-by-step explanation:

Answer:

arithmetic

Step-by-step explanation: Hope this helps :)

Answer:

ZYW = 17.

Step-by-step explanation:

ZYW = XYW = 180 - 133 + 30(sum of angles in a triangle) = 17.

The measure of angle ZYW is 17.

Given that,

Based on the above information, the calculation is as follows:

= 180 - 133 - 30

= 17

Also ZYW = XYW

Therefore we can conclude that the measure of angle ZYW is 17.

Learn more: brainly.com/question/17581080

Answer:

11 1/4

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

5  

+   0.6

+   0.02

+   0.009

Step-by-step explanation:

5 × 1  

+ 6 ×   0.1

+ 2 ×   0.01

+ 9 ×   0.001

5 × 100

+ 6 × 10-1

+ 2 × 10-2

+ 9 × 10-3

all of them are correct

By the remainder theorem, the remainder upon dividing p(x) = 2x³ - 7x² + 5x - 1 by x - 3 is p(3),

p(3) = 2(3)³ - 7(3)² + 5(3) - 1 = 5

Answer:

268

Step-by-step explanation:

hope this helps if not im sorry