Scientists conducting a study on global climate change want to determine if there has been an increase in the number of days per year that the temperature in El Paso rises above 100 degrees. In 1981, there were 21 days (5.75%) where the temperature was in the triple digits. The scientists want to know whether this percentage has increased. Which pairs of hypotheses is the most appropriate for addressing this question?

Answers

Answer 1

Answer:

The percentage maybe went up because of air pollution, and global warming

Step-by-step explanation:


Related Questions

Whats the value c
Pleaseee help

Answers

Step-by-step explanation:

the value of x is 20 that's it good luck

Step-by-step explanation:

6c + c + 10 + c + 10 = 180

8c = 160

c = 20

Larry bought 24 marbles little lost half of his marbles how many did he lose​

Answers

Answer:

12

Step-by-step explanation:

his he had lost 12 of his marbles then he would only have 12 left to begin with.

to do this we can do the equation:

24/0.5 (the 0.5 is the represent that the 24 marbles had been split into two, a half for each party)

this would then give use our quotient of 12 marble he had lost

An item is regularly priced at $35. It is now priced at a discount of 65% off the regular price. ​

Answers

Answer:

the final price of the item wud be 15.75

Step-by-step explanation:

Suppose someone takes out a home improvement loan for $30000. The annual interest on the loan is 6% and is compounded monthly. The monthly payment is $600. Let a denote the amount owed at the end of the nth month. The payments start in the first month and are due the last day of every month - this means in a given month interest is added first, and then the payment is applied to the resulting loan Balance.

a. Give a recursive definition for a,. including the recurrence relation and the base case.
b. Suppose that the borrower would like a lower monthly payment. How large does the monthly payment need to be to ensure that the amount owed decreases every month?

Answers

Answer:

a) Initial (Base) a[tex]_0[/tex] = 30000

b) the monthly payment needs to $150

Step-by-step explanation:

Given the data in the question;

a. Give a recursive definition for a,. including the recurrence relation and the base case.

the annual interest on the loan is 6% compounded monthly;

⇒ i = 6% / 12

i = 0.5%

so, the recurrence relation is a[tex]_n[/tex] = a[tex]_{n-1}[/tex]( 1 + i/100) - 600

Here Initial (Base) a[tex]_0[/tex] = 30000

b) Suppose that the borrower would like a lower monthly payment. How large does the monthly payment need to be to ensure that the amount owed decreases every month

Let p be the required monthly payment,

then the condition will be;  a[tex]_n[/tex] ≤ a[tex]_{n-1}[/tex]

a[tex]_{n-1}[/tex]( 1 + i/100) - p ≤ a[tex]_{n-1}[/tex]

a[tex]_{n-1}[/tex]( 1 + i/100) - a[tex]_{n-1}[/tex] ≤ p

a[tex]_{n-1}[/tex]( 1 + i/100 - 1) ≤ p

a[tex]_{n-1}[/tex](  i/100 ) ≤ p

a[tex]_{n-1}[/tex] ≤ p ( 100/i )

a[tex]_{1-1}[/tex] ≤ p ( 100/0.5 )

a[tex]_0[/tex] ≤ p (200)

we know that; a[tex]_0[/tex] = 30000

so

30000 ≤ p (200)

p  ≤  30000 / 200

p  ≤  150

Therefore, the monthly payment needs to $150

If cotton candy sells for $4 per bag and the booth is
open for 12 hours, how many bags does the owner
have to sell to break even?

Answers

Answer:

Here ya go ! :)

Step-by-step explanation:

137 because that’s what it would be like why not

Jordyn is weighing the ingredients on a kitchen scale to make bread. The bowl weighs 1 12 pounds. He adds several scoops of flour. the total weight of the bowl and the flour is 2 34 pounds. If each cup weighs 516 pound, how many cups of flour does he add?

Answers

Answer:

4 POUNDS OF FLOUR

Step-by-step explanation:

The number of cups of flour he added is 4.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Bowl weight = 1(1/2) pounds

Number of cups of flour weight = x pounds

Now,

Total weight = 2(3/4) pounds

1(1/2) + x = 2(3/4)

x = 11/4 - 3/2

x = (11 - 6)/4

x = 5/4

Now,

Weight of each cup of flour = 5/16 pounds

Now,

The number of cups of flour.

= 5/4 ÷ 5/16

= (5 x 16) / (4 x 5)

= 4

Thus,

The number of cups of flour is 4.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ2

Help, please. The question is down below. I give brainliest. Please anyone help.

Answers

Answer:

25%

hope this helps

Simplify the complex fraction. 2/3m-1/2m 3m/3+4/5m​

Answers

Answer:

131m/210 I THINKKKKK

Step-by-step explanation:

RNDJDJDJSJD

Find the measure of exterior 1.

Answers

The answer would be 90.

Answer:

90 degrees

Step-by-step explanation:

A.P.E.X

Manny bought 5 pounds of dog food for $8.00. At this rate, how much would 15
pounds cost? *

Answers

Answer:

24 dollars

Step-by-step explanation:

each pound is $1.60 and 15 times $1.60 equals 24

Answer:

$24

Step-by-step explanation:

5/8=15/x

cross product

8*15=5*x

120=5x

x=120/5

x=24

4x + y=7
2x - 7y=1
If (x,y) is the solution to the given system of equations, what is the Value of X?

Answers

Answer:

[tex]x = \frac{5}{3} [/tex]

simply the following expression:
a⁴ = a⁵​

Answers

Answer:

a9

Step-by-step explanation:

-.25z=-1.25 What is Z?

Answers

Answer:

z=5

Step-by-step explanation:

44 and 45 are alternate interior
angles. Find the measure of 25.
{
11565°
43/44
44 = 115°
45 = [?]
45/46
47/48
274

Answers

Answer:

115°

Step-by-step explanation:

angles 4 and 5 are alternate angles which means they would be the same amount

Answer:

Solution given:

<5=115°[corresponding angle]

Brain plants trees. He uses 3 parts fertilizer to plant 5 parts to soil to fill the hole around each tree.If Brain uses a total of 80 gallons of fertilizer and soil how much of the 80 gallons is fertilizer?

Answers

Answer:

Step-by-step explanation:jj

What equation is equivalent to 6x + 13 - (3x - 7)

Answers

Answer:

6x + 12 - (3x - 7)

6x + 12 - 3x + 7

3x + 19

Step-by-step explanation:

Simplifying

6x + 13 + -3x + -7 = 0

Reorder the terms:

13 + -7 + 6x + -3x = 0

Combine like terms: 13 + -7 = 6

6 + 6x + -3x = 0

Combine like terms: 6x + -3x = 3x

6 + 3x = 0

Solving

6 + 3x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-6' to each side of the equation.

6 + -6 + 3x = 0 + -6

Combine like terms: 6 + -6 = 0

0 + 3x = 0 + -6

3x = 0 + -6

Combine like terms: 0 + -6 = -6

3x = -6

Divide each side by '3'.

x = -2

Simplifying

x = -2

Can you help me with this if you’re a smart person

Answers

it would be 7.5 have a good day

A sandwich shop sells 4 veggie subs for every 5 turkey subs. The shop sold 27 subs today. How many of each kind
did they sell?

Answers

Answer:

4+5=9

27÷9=3

they sold 3 types of each because if you do 3×5=15 and 3×4=12 and add 12 and 15 you get 27.

Using the formula for the difference of squares, calculate: (100 - 3)

(100 + 3).​

Answers

Answer:

97

Step-by-step explanation:

Answer:

Step-by-step explanation:

Explanations are below

Step 1

(100-3)  Observe the equation

Step 2

(100-3)  Simplify

100-(+3)

100-3

Answer: 97

Write an equation for the trend line shown. Type answer in y = mx + b format.

Answers

Answer:

y=1/4x+250

Step-by-step explanation:

Answer:

y = 12.5x + 250

Step-by-step explanation:

(4,300) , (8,350)

m = 350 - 300 / 8 - 4 = 25/2 = 12.5

y - 300 = 12.5(x - 4)

y - 300 = 12.5x - 50

y = 12.5x + 250

Im a game with 10 floating ducks,there are 2 ducks with a green dot on the bottom,3with a blue dot and 5 with a red dot.What is the probability of selecting a green duck

Answers

Answer:

2/10 or 1/5

Step-by-step explanation:

There are a total of 10 ducks, and only 2 have green dots.

So the probability would be 2 / 10, which simplifies to 1 / 5.

Greatest common factor of 2 and 10: 2

So: 2 ÷ 2 = 1

10 ÷ 2 = 5

Imagine that you traveled back in time to the Fourth of July, 1999. You are at Stanford Stadium, watching the semifinal of the Women's World Cup soccer match. Mia Hamm, star of the United States team, has just received the ball on a breakaway. She is 60 yards from Brazil's goal. Brazilian star Sissi is the closest opponent to Hamm and is 10 yards behind her. Mia takes off for Brazil's goal and, while dribbling the ball, is able to run at a speed of 6.8 yards per second. Sissi takes off at the same time as Hamm and runs at 8.4 yards per second. (She is able to run faster because she isn't dribbling the soccer ball.) Hamm has decided to shoot at the exact moment that Sissi catches up to her, because at that point it will still be difficult for Sissi to block the shot when she is side by side with Hamm. How far away from the goal will Hamm be when she shoots

Answers

Answer:

17.5 yards

Step-by-step explanation:

Speed is the ratio of distance to time. It is given by the formula:

Speed = distance / time

Mia Hamm is running at a speed of 6.8 yards per second. Let us assume that Mia covers a distance (d) during time (t) when Sissi catches up to her. Hence:

6.8 = d / t

t = d / 6.8

Sissi was 10 yards behind Mia Hamm and running at 8.4 yards per second. Therefore:

8.4 = (d + 10) / t

t = (d + 10)/ 8.4

d / 6.8 = (d + 10)/ 8.4

8.4d = 6.8d + 68

1.6d = 68

d = 42.5 yards

Mia had covered 42.5 yards when Sissi catches up with her. Therefore Mia Hamm distance to goal = 60 yards - 42.5 yards = 17.5 yards

Let U = {1, 2, 3, 4, 5, 6, 7, 8}, A = B = and C = {1, 3, 7}. Find the following. (Enter your answers as a comma-separated list.) A ∪ B

Answers

Answer: C = {1, 3, 7}

Step-by-step explanation:

Can someone help me? I’ll reward points + brainalist

Answers

Answer:

Option A is your answer ☺️☺️☺️

Joe earned $25500 per annum and received a 6.35% raise. How much does he earn now?

Answers

Answer:

1619.25

Step-by-step explanation:

25500 x 6.35 % = 1619.25

PLEASE I NEED HELP QUICK I HAVE A TIME LIMIT

Answers

Answer:

Step-by-step explanation:

AC² + AP² = PC²

AC² + 5² = 13²

AC = 12

radius = AC/2 = 6

Pless help I want to hang my self
A rectangular prism has a length of 1į yards, a width of 25 yards, and a height of 4 yards. Enter the volume of the prism as a mixed number in simplest form in the box. yd3​

Answers

The answer is 27, but I might be wrong

Point P is (1,2)

Point Q is (7,6)



Which of the following best represents the length of segment PQ?

Answers

6 units




the answer needs more characters

In the balcony of an auditorium, there are 20 seats in the first row, 22 seats in the second row and 24 seats in the third row. Assuming this pattern continues, write the explicit form of a sequence describing the number of seats in each row.​

Answers

Answer:

is two more than the row before

Step-by-step explanation:

i hope i help\

Which expression has a lesser value than -10? a. 8+ (-12)
b. – 14 – 2 + 8
c. 4-(-12)
d. - 2 +(- 12) + 2
please show work! ​

Answers

Answer:

D

Step-by-step explanation:

Which expression has a lesser value than -10?

a. 8+ (-12)= -4

b. – 14 – 2 + 8= -16+8= -8

c. 4-(-12)= 16

d. - 2 +(- 12) + 2 = -12

Answer:

Step-by-step explanation:

a.

8 +(-12) = 8-12 = -4

-4 > -10

b.

14-2+8 = 12+8 = 20

20 > -10

c.

4-(-12) = 4+12 = 16

16 > -10

d.

-2+(-12)+2 = -2-12+2 = -14+2 = -12

-12 < -10

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