Suppose that in one week in November in St. Louis, the temperature dropped by an average of 4 degrees every day. The temperature at the beginning of the week was 65 degrees. Write an equation that relates the temperature (t) to the number of days that have passed (d). helpppp

Answers

Answer 1

Answer:

t = 65 - 4d

Step-by-step explanation:

Linear Modeling

The temperature in St. Louis dropped by 4 degrees every day in one week.

When d days have passed, the temperature will have dropped by 4d degrees.

We know the temperature t at the beginning of the week was 65 degrees.

Thus, when d days pass, the linear model for the temperature t is:

t = 65 - 4d


Related Questions

Many ancient tombs were cut from limestone rock that contained uranium. Since most such tombs are not​ well-ventilated, they may contain radon gas. In one​ study, the radon levels in a sample of 12 tombs in a particular region were measured in becquerels per cubic meter (Bq/m3). For this​ data, assume that x(over-bar)= 3,469 Bq/m3 and s= 1,135 Bq/m3. Use this information to​ estimate, with 95% confidence, the mean level of radon exposure in tombs in the region. Interpret the resulting interval.

Answers

Answer:

95% confidence interval of the mean level of random exposure in tombs in the region.

(2746.868 , 4191.132)

Step-by-step explanation:

Step(i):-

Given sample size 'n'= 12

Mean of the sample  x⁻ = 3,469

and standard deviation of the sample 's' = 1,135

95% confidence intervals are determined by

[tex](x^{-} - t_{0.05} \frac{S}{\sqrt{n} } , x^{-} +t_{0.05} \frac{S}{\sqrt{n} } )[/tex]

Degrees of freedom = n-1 = 12-1= 11

Step(ii):-

95% confidence intervals are determined by

[tex](3469- 2.201 \frac{1135}{\sqrt{12} } , 3469+2.201\frac{1135}{\sqrt{12} } )[/tex]

(  3469-722.132 , 3469 +722.132)

(2746.868 , 4191.132)

Which property justifies rewriting 3x-5x as (3-5)x?

Answers

Answer:

distributive property of multiplication over subtraction

f (x) = x 3 + 3x 2 - 3x + 35

Answers

Answer:

6x+35

Step-by-step explanation:

Lipids provide much of the dietary energy in the bodies of infants and young children. There is a growing interest in the quality of the dietary lipid supply during infancy as a major determinant of growth, visual and neural development, and long-term health. An article reported the following data on total polyunsaturated fats (%) for infants who were randomized to four different feeding regimens: breast milk, corn-oil-based formula, soy-oil-based formula, or soy-and-marine-oil-based formula. (Use i = 1, 2, 3, and 4 respectively.)


Sample Regimen Sample Size Sample Mean Sample SD

Breast milk 15 42.9 1.3
CO 17 43.1 1.5
SO 8 43.7 1.2
SMO 14 43.9 1.2

Required:
a. What assumptions must be made about the four total polyunsaturated fat distributions before carrying out a single-factor ANOVA to decide whether there are any differences in true average fat content?
b. Carry out the test suggested in part (a). State the appropriate hypotheses.
c. Find the value of the test statistic in this test.

Answers

Answer:

A.

This assumption is that the distribution of polyunsaturated fat % of each if these four regimes must be with equal variances as well as uniform.

B.

The null hypothesis

H0: μ1 = μ2 = μ3 = μ4

The alternate hypothesis:

H1: at least 2 means are unequal

C.

First we calculate the grand mean

= 1/54[15(42.9)+17(43.1)+8(43.7)+14(43.9)]

= (643.5 +732.7 + 349.6 + 614.6)/54

= 2340.4/54

= 43.341

Sum of squared treatment

= [15(42.9-43.341)²+17(43.1-43.341)²+8(43.7-43.341)²+14(43.9-43.341)²]

= 9.3104

Mean square of treatment

= SST/I-1

= 9.3104/4-1

= 9.3104/3

= 3.1035

Error sum of squared

= (15-1)*(1.3)² + (17-1)*(1.5)² + (8-1)*(1.2)² + (14-1)*(1.2)²

= 88.46

Error mean square

MSE = 88.46/54-4

= 1.7692

Test statistic

= 3.1035/1.7692

= 1.75

The three linear equations have y intercept of -3.8 and 7 respectively. Yet, a function can have only one y intercept. which of these is the y intercept of this function? explain how you made your choice.​

Answers

Answer:

agagasg

Step-by-step explanation:

Write a function formula for f using the function g.
f(x)=

Answers

The answer is f(x) = g(x+2) + 1.

which number is an integers
-3/4
1/5
2
42/3

Answers

integers are whole numbers so 2

Convert the following equation into
standard form.
y = -5x + 2
5x + [?]y = [ ]

Answers

Answer:

standard form is Ax + by + c = 0

Step-by-step explanation:

add 5x to each side to get 5x + y - 2 = 0

Please help me I’m desperate

Answers

Answer:

7/10:3/5=7/10×5/3=35/30=7/6

Answer:

5. 7/10 × 5/3

6. 3/5 ÷ 7/10

Step-by-step explanation:

5. 7/10 ÷ 3/5 = 7/10 × 5/3

6. 3/5 ÷ 7/10

What is the missing length for this one???

Answers

Answer:

45√2

i am pretty sure this is it

look at the picture ​

Answers

Answer:

c

Step-by-step explanation:

Solve the problem.
A dress regularly sells for $135. The sale price is $93. Find the percent decrease of the sale price from the regular
price.
31.1%
221.4%
45.2%
68.9%

Answers

Answer:

32% Decrease

Step-by-step explanation:

93 = x * 135 (divide both sides by 135 to get X alone.)

x=0.68 - Repeated (This tells us that it was paid 68% of the OG price.)

1 - 0.68 = 0.32 (We need to subtract the percent  paid from the OG price to find the percent discount.)

The percent decrease was 32% off.

None of your answer choices are right!

In a large city, 82% of residents own a cell phone. Suppose that we randomly select three city residents. What is the probability that at least one of the three residents does not own a cell phone

Answers

Answer:

P(X≥1) = 0.45 (approximately)

Step-by-step explanation:

Let X be a random variable, then X follows a binomial distribution with probability of success, p and number trials, n.

The probability distribution is given as:

P(X) = nCx * p^x * (1 – p)^(n – x)

Where p is Probability of success, n is number of trials and x is total number of successes.

Probability of having phone is 82% = 0.82

Probability of not having phone is 100% – 82% = 0.18.

Since the trials are interested in those that are not having phone, then probability of success, p = 0.18.

Number of trials, n = 3.

P(X ≥ 1) = 1 – P(X < 1) = 1 – P(X = 0)

P(X = 0) = 3C0 * (0.18)^0 * (0.82)^(3) = 1 * 1 * 0.551368 = 0.551368

P(X ≥ 1) = 1 – 0.551368 = 0.448632 ≈ 0.45

Answer:

.45

Step-by-step explanation:

copied

What is the area of the trapezoid?

Answers

Answer:

a+b/2×h=56

Step-by-step explanation:

thanks needed.......

I believe it would be 56

Order of Operations make it true

5 23 18 8 4 = 100

Answers

Answer:

Step-by-step explanation:

5 x (23-18) x (8-4)=100

5 x (23-18) x (8-4)=100 is the Order of Operations which make it true

What is Number system?

A number system is defined as a system of writing to express numbers.

We have to find the operations which make the value to be true.

The given numbers are 5, 23, 18, 8, and 4.

Let us use the operation addition, subtraction and addition.

Use the subtraction between twenty three and eight.

Use subtraction between eight and four.

5 x (23-18) x (8-4)=100

Hence, 5 x (23-18) x (8-4)=100 is the Order of Operations which make it true

To learn more on Number system click:

https://brainly.com/question/22046046

#SPJ3

I don’t know how to do this

Answers

Answer:

Step-by-step explanation:

The first box should be 20.

The second box should be 40

The third box should be .2

The fourth box should be .6

Which linear inequality is represented by the graph?

Answers

Answer:

C

Step-by-step explanation:

You are right

when did my mom chop up my glizzy

A:2015
B:2017
C:2018
D:2020

Answers

Answer:

imma go wit B. I mean thats my guess

Millions of students take statistics each year! Researchers hoping to help professors teach better conducted a study in statistics classrooms. They had the same instructor teach three different classes, with randomly assigned students, with three different methods! Method A - traditional lectures, with homework outside of class. Method B - flipped classroom, with students watching videos of lectures and working on homework in class with peers and instructor. Method C - fully online, with students watching videos of lectures, with homework outside of class. They then gave each class the same final exam (out of 20 points). These were the results:

Answers

Answer:

It doesnt show the results

Step-by-step explanation:

What is the answer to 3- a/7=-2 ?

Answers

Step-by-step explanation:

3 - a/7 = -2

a/7 = 5

Therefore a = 35.

find the gretest number which devded by 181 and 236 leave a remainder of 5 in each case​

Answers

Answer:

The greatest number is 11

Step-by-step explanation:

Given

Dividends: 181 and 236

Remainder: 5

Required

Determine a divisor that satisfies the above condition

Let the required divisor be represented with x.

Since a remainder of 5 is expected, then x can divide (181 - 5) and (236 - 5) without remainders.

So, we have:

[tex]181 - 5 = 176[/tex]

[tex]236 - 5 = 231[/tex]

Next, we calculate the GCF of 176 and 231

[tex]176 = 2 * 2 * 2 * 2 * 11[/tex]

[tex]231 = 3 * 7 * 11[/tex]

The greatest common factor, GCT is:

[tex]GCF = 11[/tex]

Hence, the required divisor is 11

Graph the equation by plotting three points. If all three are correct, the line will appear. 2y = 5x + 11​

Answers

Answer: (-1,3) (-2, 0.5) (0,5.5)

Step-by-step explanation:

Sorry if you can’t really see it

Answers

Answer:

i cant see it

Step-by-step explanation:

Calculate the minimum sampling rate necessary to digitize the track with high fidelity (i.e. so that it sounds like it does when you hear the friend play it in person) for storage on a hard drive.

Answers

Step-by-step explanation:

Calculate the minimum sampling rate necessary to digitize the track with high fidelity for storage on a hard drive.

[tex]f_{z} &=1.2 \times 2 \mathrm{~W}[/tex]

[tex]=1.2 \times 2 \times(15 \mathrm{KHz})[/tex]

[tex]=36 \mathrm{kHz}[/tex]

Therefore, the minimum sampling rate necessary to digitize the track with high fidelity for storage on a hard drive [tex]\mathrm{}$ is $36 \mathrm{kHz}[/tex]

PLEASE HELP WILL MARK BRAINLIEST!!!!! +20 POINTS
only answer number 25.

Answers

Answer:

the one up: 21

the one down: 16

Write four thousand twenty four and seventy six thousandths in
number
inta decimall

Answers

Answer:

4,024.076

Step-by-step explanation:

and = Decimal point

0 = tenths 7 = hundredths 6 = thousandths

4,027.076


i could be wrong but

Roger buys a tennis racket for $75. He also buys packs of tennis balls that cost $6 per pack.
Which expression represents the amount Roger spends, in dollars, if he buys n packs of tennis balls and the racket?
6 + 750
6 - 75
75-6
75-6
Plz hurry its a very important test!!!

Answers

Answer:

Step-by-step explanation:

It's 6n+750= $, so it's A.)

Oi anybody who solves this quick get 50 pts​

Answers

Answer:

l like ya g

Step-by-step explanation:

I forgot mostly uHm

i believe the answer is B.

There are 6 2/3 pounds of walnuts in a container, which will be divided equally into containers that hold 1 1/2pounds. This would fill and 4/9 containers. (3 points)

Answers

Step-by-step explanation:

Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.

Which model can be used to subtract 1/2 from 5/6?

Answers

Answer:

2nd one

Step-by-step explanation:

1/2 when multiplied with 3/3 so it has the same denominator is 3/6, the second choice shows 3/6 as a model as well as 5/6 so yea

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