Plsssssssssssssssssssssss help me plsssssssssssssssssssssss please answer both it’s 1234 on both as well

Step-by-step explanation:

1. Null hypothesis:

h0: μ ≥ 9.2

alternative hypothesis

h1: μ < 9.2

2. the type 1 error is an error that occurs when we reject a true null hypothesis. in this question, the type 1 error is commited if we reject the null hypothesis that the population mean is greater than or equal to 9.2, then we have committed this error.

3. the type ll error is an error that o a false occures wehn we do not reject a false null hypothesis. We commit the type ll error in this scenario by saying that the population mean is greater than or less than 9.2 when it is actually false.

4. The type ii eror is actually worse here. we accept a false H0 in the type ii error which says that the mean is greater than or equal to 9.2. This means that these seniors are not going to get discount because they only get discount when their mean calls is less than 9.2 minutes.

I know the 1st one.

Answer:

(x+3)(x-4) = x-12

Step-by-step explanation:

This is called a foil method

1st: We multiply the two first numbers - x*x = 2x

2nd: We multiply the two outside numbers - x*(-4) = -4x

3rd: We multiply the two inside numbers - 3*x = 3x

4th: We multiply the two last numbers - 3*(-4) = -12

Then we combine them - 2x-4x+3x-12

Then we simplify - x-12

Hope this helped!

Answer:

24

Step-by-step explanation:

For this problem, you need to find the greatest common factor because you need to divide all of the materials equally into identical sets.

If you factor out the numbers 48, 72, and 120, (same # of blue, green, and yellow crayons) you'll get the GCF of 24.

48 - 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

72 - 1, 2, 3, 4, 18, 6, 8, 9, 12, 24, 36, 72

120 - 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120

The greatest common factor in all of these lists is 24.

Therefore, the largest number of identical sets is 24.

(2 blue crayons, 2 green crayons, 2 yellow crayons, 3 red crayons, 5 colored pictures)

Answer:

24

Step-by-step explanation:

Answer:

Infinite number of solutions

Step-by-step explanation:

The two expressions are actually equal to each other. When two functions are equal to each other, they will have infinite number of solutions.

Answer:

infinite number of solutions

Step-by-step explanation:

-10m - 3 = -3 - 10m

add 3 to each side

-10m = -10m

any value substituted in for 'm' will make the equation true

Answer:

129 people would say yes if you asked 430 people

Step-by-step explanation:

430 ÷ 20 = 21.5

6 × 21.5 = 129

129/430 = 0.3

6/20 = 0.3

This means they are equivalent and 129 people would say yes

Answer:

-15º F.

Step-by-step explanation:

Given that on Monday in Minneapolis, Minnesota it’s was 0 ° F outside, while on Tuesday it was 15 degrees colder, to determine what was the temperature on Tuesday the following calculation must be performed:

0 - 15 = X

-15 = X

Thus, the temperature on Thursday was -15º Fahrenheit, which is equal to -26.11º Celcius.

Answer:

The measures of spread for Mrs. Hampton’s class data come in a few different ways. One is the IQ range, the IQ Range is the Lower Quartile and Upper Quartile subtracted. The IQR is 8-5 = 3.

Hope this helps! Have a nice day! <3

Feel free to use this information and put it in your own words for your assignment! Best of luck! <3

Edge 2020-2021

The measure of spread for the data in Mrs. Hampton’s class when using the interquartile range is  3.

It should be noted that the measure of spread simply describes how similar or varied the set of observed values are for a variable.

The measures of spread include the quartiles, range, interquartile range, variance, and standard deviation.

In this case, the interquartile range will be the difference between the lower quartile and the upper quartile. This will be:

= 8 - 5 = 3

Learn more about interquartile range on:

https://brainly.com/question/4102829

Answer:

Step-by-step explanation:

12mi(1in/4mi)=3in

Answer:

A) 3

Step-by-step explanation:

4/1=12/x

4/1=4

4=12/x

x=12/4

x=3

Answer:

A triangle

Step-by-step explanation:

The angles of a triangles are straight

therefore the triangle is a straight triangular shape

Answer:

a) A (4 , -2)

Step-by-step explanation:

A (x,y) dilation with the center of Origin and factor 3 -> (3x,3y)

3x = 12      x=4

3y = -6      y=-2

Answer:

parallel is like a road and perpendicular is like an x where the lines cross eachother

Step-by-step explanation:

my knocwlegde lol sorry if wron but im pretty confident its right

Answer:

parallel of lines, planes, surfaces, or objects) side by side and having the same distance continuously between them.

perpendicular of an angle of 90° to a given line, plane, or surface.

Answer:

vertex (-4,-18)

Step-by-step explanation:

f(x)=2(x+1)(x+7)

f(x)=2(x^2+8x+7)

f(x)=2x^2+16x+14

f(x)=2(x^2+8x)+14

f(x)=2(x^2+8x+4^2-4^2)+14

f(x)=2(x^2+8x+4^2)+2(-4^2)+14

f(x)=2(x^2+8x+4^2)+2(-4^2)+14

f(x)=2(x^2+8x+4^2)-18

f(x)=2(x+4)^2-18

vertex form:

f(x)=a(x-h)^2+k

h=-4

k=-18

vertex (-4,-18)

Step-by-step explanation:

Finding products

[tex](5y^{2 + 2y + 7} ) \times (3y^{2 + y + 5}) \\ = 5 \times 3 \times {y}^{2 + 2y + 7 + 2 + y + 5} \\ = 15 {y}^{3y + 14} [/tex]

Hope it helps :)❤

Answer:

its $70

Step-by-step explanation:

sorry

i dont have an explanation

Step-by-step explanation:

neither of the ones shown have an area of 9.

do you have another choice with a base of 6 and height of 3 or vice versa? because that would be an area of 9

Answer:

0.1723 = 17.23% probability that randomly selected region had exactly two hits.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]

In which

x is the number of sucesses

e = 2.71828 is the Euler number

[tex]\mu[/tex] is the mean in the given interval.

535 bombs hit the combined area of 570 regions

This means that the mean number of hits per region is given by:

[tex]\mu = \frac{535}{570} = 0.9386[/tex]

Find the probability that randomly selected region had exactly two hits

This is P(X = 2).

[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]

[tex]P(X = x) = \frac{e^{-\0.9386}*(0.9386)^{2}}{(2)!} = 0.1723[/tex]

0.1723 = 17.23% probability that randomly selected region had exactly two hits.

Answer:

∠4 + ∠1 and ∠4 + ∠5

Step-by-step explanation:

∠4 and ∠1 are vertical angles.

∠4 and ∠5 are alternate exterior angles.

Answer: Answer Is 8

Step-by-step explanation:

Answer:

The slope of y=-3x+2 is B. -3

Jennifer has been saving for college for 57 months. The first month, she saved $11. She was able to save more money each month than the month before. She ended up saving $19,779.00. How much more did she save each month?

(A) $11.00

(B) $11.50

(C) $12.00

(D) $12.50

Step-by-step explanation:

his is an arithmetic sequence with first term (a) = 11, number of terms (n) = 57, sum of nth term (Sn) = 19,779.

Let the amount of money she saved more each month be d, then

Sn = n/2(2a + (n - 1)d)

19,779 = 57/2(2(11) + (57 - 1)d)

19,779 = 28.5(22 + 56d)

19,779 = 627 + 1,596d

19,779 - 627 = 1,596d

d = 19,152/1,596 = 12

Therefore, she saved $12.00 more each month.

Answer:

c 12.00

Step-by-step explanation:

Answer:

You are correct about the graphs and tables, but I am not so sure about the mapping, but don't take my word for it, sorry.

but still,

I hope this helps!

Answer:

#2 is correct.

#3 is correct, mammals are vertebrates, which means cows counts, also frogs, since they have to jump a lot, they have 10 vertebrae. Also, hawks, since they're vertebrates, and all vertebrates have backbones.

$4 is correct.

If you like my answer, please mark me brainliest.

Answer:

Step-by-step explanation:

As per Janayda,

From the figure attached,

In ΔTRQ,

m∠TRQ + m∠RQT + m∠QTR = 180°

25° + m∠RQT + 35° = 180°

m∠RQT = 180° - 60°

m∠RQT = 120°

Since, m∠RQT + m∠PQT = 180° [Linear pair of angles]

m∠PQT = 180° - m∠RQT

             = 180° - 120°

             = 60°

In right angled triangle TPQ,

m∠TPQ + m∠PQT + m∠PTQ = 180°

90° + 60° + m∠PTQ = 180°

m∠PTQ = 180° - 150°

             = 30°

Similarly, other angles can also be evaluated from the given information.

In ΔQTP and ΔNTP,

TP ≅ TP [Reflexive property]

NP ≅ PQ [Given]

ΔQTP ≅ ΔNTP [By LL postulate for congruence]

Therefore, Janayda is correct.

While Sirr is incorrect.

Since, there is not the enough information to prove ΔRTQ and ΔMTN equal, Isabelle is incorrect.

Answer:

3 choices is the answer i think

Answer:

To maximize profits, the farmer should plant 120 acres of wheat, and no acre of corn.

Step-by-step explanation:

Given that a farmer plans to grow wheat and corn, and each acre of wheat requires 4 hours of labor and $ 20 of capital, and each acre of corn requires 16 hours of labor and $ 40 of capital, and the farmer has at most 800 hours of labor and $ 2400 of capital available, if the profit from an acre of wheat is $ 80 and from an acre of corn is $ 100, to determine how many acres of each crop should she plant to maximize her profit the following calculation must be performed:

Knowing that each acre of wheat has a 50% lower capital cost, 75% lower hours and a 20% lower profit, in principle this would be the crop to be planted to obtain better yields.

2400/20 = 120

120 x 4 = 480

120 x 80 = 9,600

Thus, to maximize profits, the farmer should plant 120 acres of wheat, and no acre of corn.