Mathematics College

evaluate the expression 81-8^2

Evaluate The Expression 81-8^2

Answers

Answer 1

Answer:

17

Step-by-step explanation:

Do the exponent first, then subratct it to 81

Answer 2

Answer:

thats easy 17

Step-by-step explanation:

Related Questions

Label following study as either an observational study, an experiment, or neither.

Many parents have expressed concerns that pertussis vaccinations will cause wheezing disorders or asthma in later life. In 2009 the Journal of the American Academy of Pediatrics published research by the Institute of Social and Preventive Medicine in Bern, Switzerland. The researchers wanted to determine if routine childhood vaccination against pertussis (whooping cough) was associated with subsequent development of childhood wheezing disorders and asthma. The researchers studied 6811 children from the general population born between 1993 and 1997 in Leicestershire, UK. From birth through 2003, they conducted repeated questionnaire surveys about wheeze and asthma and then linked the respiratory symptom data to independently collected vaccination data from the National Health Service database. Then the researchers compared wheeze and asthma incidents for children of three different levels of vaccination (complete, partial, and no vaccination). The analyses were based on 6,048 children with available vaccination records.

a. observational study
b. an experiment
c. neither

Answers

Answer:

a. observational study

Step-by-step explanation:

An observational study is one in which the researcher seeks to discover the effect of a disease or treatment without interference on those who are affected or not affected by it. Observational studies could be of two types namely; the case-control, and the cohort study. The research given above is a cohort study because it compares a group of people born in the same time period and checks for the presence of a disease that could be linked to the vaccinations administered at birth.

A case-control study compares those affected by the disease to those not affected by it. An experimental study assigns the participants to groups and there is a control or placebo group. After this, the results from the groups are compared.  

Kadyn rode his bicycle in a marathon for
176 miles. He took a rest stop every 22
miles. How many rest stops did Kadyn
take?

Answers

Answer:

8

Step-by-step explanation:

Please help me! 5:34 est answer as soon as you can!!

Answers

B because it is the only one were the 'y-coordinate' is not the same for 2 different 'x-coordinates'

hope this helps!!


Identify next three numbers in this sequence: 2, 6, 3, 9, 6, 18, 15…

Answers

Answer:

10000000000000000000000,

the next number: 1-934028049747284

that's all

pls report

thanks!))))

Step-by-step explanation:

The answer would be 15x5=75

If the length is 4 and the width is 6, what’s the height?

Answers

Answer:

The answer to this is: 24

Step-by-step explanation:

The graph of h(x) = x2 – 3 is a translation of the
graph of f(x)
by
units.

Answers

Answer: down, by 3 units

Step-by-step explanation: -3 is negative so you go down on the graph 3 times

Answer:

down by 3 units

Step-by-step explanation:

i just did this assignment on edg

4. What is the slope of the line that contains the points (-3,-9) and (4,-2)?​

Answers

Answer:

The slope is 1

Step-by-step explanation:

Answer:

y = x – 6

Step-by-step explanation:

What are the opposites of 5, −2.4, 2.25, and 8 12 ? Enter the answers in respective order, each separated by comma.

Answers

Answer:

-5, 2.4, -2.25, -8, -12

Answer:

-5, 2.4, -2.25, -8, -12

Step-by-step explanation:

To make an number the opposite of itself you either make it a positive or negative. For example the opposite of 3 is -3 and the opposite of -3 is 3.

help with question 8 please

Answers

Answer:

the answer is G I believe

I think also the answer is G.

28. Simplity
a) 4x + 2x

Answers

The answer is 6x !!!!!!

6x +3 = 7x-3
Solve this eqation plss

Answers

Answer:

6

Step-by-step explanation:

Step 1:

6x + 3 = 7x - 3     Equation

Step 2:

3 = x - 3    Subtract 6x on both sides

Step 3:

x = 3 + 3    Add

Answer:

x = 6

Hope This Helps :)

In an office building, 42 offices are currently being rented. This represents 40% of the total units. How many offices are in the building?

Answers

Answer:As per problem, 60% units constitute 72 offices. Let total number of units be x.

Hence, 0.6x = 72

or, x = 72/0.6 = 720/6 = 120

HTH

Step-by-step explanation:

Marcos sells video games that he purchases from a distributor. He buys
each game for $30. If there is a 60% markup, calculate the markup and
selling price.

Answers

Answer:

the mark up would be $18. so the total sales price would be $48.

Step-by-step explanation:

A vehicle uses 2.3 gallons of gas when driven 48.3 miles. . How many miles can the vehicle go if it uses only 1 gallon of gas?

Answers

The vehicle can go 21 miles on 1 gallon of gas

What is the relationship between the constant propprtionality of 50 and 0.02

Answers

Answer:

Inverse Proportionality

Step-by-step explanation:

Given

Constants 50 and 0.02

Required

Determine the relationship

Let y = 0.02

Convert 0.02 to fraction

y = 2/100

Simplify to lowest form

y = 1/50

Recall that y = 0.02

0.02 = 1/50

From the above expression, we can conclude that the relationship between both is inverse.

In other words, 50 and 0.02 are inversely proportional

If a=3 what is the value of 2a2

Answers

Answer:

12

Step-by-step explanation:

You can break it down like this, 2 x a x 2 or 2 x 3 x 2

2x3=6 6x2=12

Answer: 12

Step-by-step explanation:

12

Calculate the Social Security and Medicare tax that would be applied to an annual salary of $235,430. Use $106,800 for
maximum taxable earnings.
a. Social Security tax: $1,459.67, Medicare tax: $341.37
b. Social Security tax: $14,596.66, Medicare tax: $3,413.70
c. Social Security tax: $662.16, Medicare tax: $341.37
d. Social Security tax: $6,621.60, Medicare tax: $3,413.70

Answers

Answer:

D   Social Security tax: $6,621.60, Medicare tax: $3,413.70

Step-by-step explanation:

Following are the calculation to the Social Security and Medicare tax value:

This Social Security tax is a percent to which both workers and employers must pay [tex]6.2\%[/tex] of employee wages, for a total of [tex]12.4\%[/tex].The state pension, which would be applied to a [tex]\$235,430[/tex] annual wage with a maximum tax liability:

         [tex]\to \$106,800\ is\ 12.4\%\ of\ \$106,800 = 0.124 \times \$106,800 = \$13,243.20[/tex]

Its payroll tax for Medicare is [tex]2.9\%[/tex].This only applies to earned income, which includes salaries and tips from an employer. We are liable for [tex]1.45\%[/tex] of a tax, which would be immediately withheld from your paycheck. The other [tex]1.45\%[/tex] is paid by your company. This Medicare tax would be charged to a [tex]\$235,430[/tex] annual salary with a maximum taxable income:

     [tex]\to \$106,800\ is\ 2.9\%\ of\ \$106,800 = 0.029 \times \$106,800 = \$3,097.20[/tex]

Therefore, the final answer is "$13,243.20 and $3,097.20".

Learn more:

brainly.com/question/1899088

A line has a slope of 3 and a y-intercept of 5. What is its equation in slope-intercept form? Write your answer using integers, proper fractions, and improper fractions in simplest form?
IF U ANSWER SOMETHING JUS TO GET POINTS YOU WILL GET DELETED AND REPORTED !!!!

Answers

Answer:

y=3x+5

Step-by-step explanation:

Slope intercept form is always y=mx+b

'm' represents slope and 'b' represents y-intercept.

Hope it helped.

Set up a equation and solve for X.

Next to each step write the postulate or property used for that step

Answers

Answer:

[tex] x = 4 [/tex]

Step-by-step explanation:

[tex] GH = 3x [/tex] (given)

[tex] HJ = x + 16 [/tex] (given)

[tex] GJ = 32 [/tex] (given)

[tex] GH + HJ = GJ [/tex] (segment addition postulate)

[tex] (3x) + (x + 16) = 32 [/tex] (substitution)

Solve for x

[tex] 3x + x + 16 = 32 [/tex]

[tex] 4x + 16 = 32 [/tex]

[tex] 4x + 16 - 16 = 32 - 16 [/tex] (subtraction property of equality)

[tex] 4x = 16 [/tex]

[tex] \frac{4x}{4} = \frac{16}{4} [/tex] (division property of equality)

[tex] x = 4 [/tex]

Ben is training for a triathlon he runs 1/5 of a mile in 1/20 of an hour he swims 2/3 of a mile in 1/9 of an hour he bikes for miles in 1/4 of an hour at these rates how many minutes does it take Ben to run 2 miles and bike 8 miles?

Answers

Answer:120 minutes

Step-by-step explanation:

You see it's math

Answer:

110

Step-by-step explanation:

Can someone answer this question with the right answer

Answers

Answer:

Option 4: Triangle DBC is congruent to triangle RQP

List the side lengths from shortest to longest

Answers

Answer:

MO, NO, MN

Step-by-step explanation:

Answer:

the lengths from shortest to longest is: m, o, n.

Can somebody pls answer these three questions pls!!!!ASAP

Answers

Answer:

1) x=1

2) x=6

3) x=3

Step-by-step explanation:

i just did them :) good luck

Plss help i dont understand :(

Answers

I believe it’s c I’m 90% sure hope u get 100%

simply in ratio 20:80

Answers

Answer:

I think the answers could range in anything that are GCF including 2:8

Step-by-step explanation:

PLS HELP WHOEVER ANSWERS FIRST I WLL GIVE YOU BRAINLIEST!!!!!

Answers

Answer:

A Drill Pickle

Step-by-step explanation:

A Drill Pickle is the overall answer sentence, tho I can't really do all the work for you. Just count the squares and after the first 4 do mutiplication of the base (hight)

Jordan earns $15.35 per hour. on Tuesday , Jordan clocked in at 7:45 Am then clocked out for a break at 12:15 am and working until 6:00 pm a.How many hours did Jordan work b.what was his total pay for day​

Answers

12:45Answer:

Part A: 9 hours 45 minutes

Part B: $126.1575

Step-by-step explanation:

Part A,

From 7:45 to 12:15 is 4 hours and 30 minutes

From 12:45 which he clocked back in to 6:00 is 5 hours and 15 minutes.

4 hours and 30 minutes plus 5 hours and 15 minutes = 9 hours and 45 minutes.

Part B, 9 hours and 45 minutes can be represented as 9.45

And since he gets 15.35 "per" hour shows we can multiply.

15.35 x 9.45 = 126.1575

Therefor he earned 126.15.

help me pleaseeeeeeee ​

Answers

Answer:

(0,4) and (-4,-2)

Step-by-step explanation:

Since the y-axis represents the distance above the ground, to find the intervals where the dron's distance above the ground is increasing, simply find the intervals where slope of the line is going upwards on the y-axis.

idk how to do this..............

Answers

ABE : Right Triangle
BEC : Equilateral Triangle
DEF : Equilateral Triangle
CDF : Acute Triangle

Hopefully this help! sorry if i’m incorrect :)

The distance D that a spring is stretched by a hanging object varies directly as the weight W of the object. if a 9-kg object stretches a spring 54cm, find the distance when the weight is 2-kg. round your answer to the nearest whole centimeter.
a. 65 cm
b. 12 cm
c. 0 cm
d. 6 cm

Please select the best answer from the choices provided.
.A
.B
.C
.D

Answers

Answer:

I think it is b

Step-by-step explanation:

The distance when the weight is 2 kg will be 12 cm. Then the correct option is B.

What is the spring force?

The spring force is directly proportional to the deflection of the spring. Let 'x' be the deflection of the spring due to force 'F'. Then the spring force is given as,

F ∝ -x

F = - kx

mg = - kx

The distance D that a spring is stretched by a hanging object varies directly as the weight W of the object. if a 9-kg object stretches a spring 54cm. Then the spring force is calculated as,

9g= - k (54)

- g / 6 = k

Then the equation is given as,

F = (g / 6) x

The distance when the weight is 2 kg will be given as,

2g = (g / 6) x

12 = x

The distance when the weight is 2 kg will be 12 cm. Then the correct option is B.

More about the spring force link is given below.

https://brainly.com/question/14655680

#SPJ5

Other Questions
Penelope and the Suitors from Book II of The Odyssey by Homer "Telemachus, insolent braggart that you are, how dare you try to throw the blame upon us suitors? It is your mother's fault not ours, for she is a very artful woman. This three years past, and close on four, she had been driving us out of our minds, by encouraging each one of us, and sending him messages without meaning one word of what she says. And then there was that other trick she played us. She set up a great tambour frame in her room, and began to work on an enormous piece of fine needlework. 'Sweet hearts,' said she, 'Ulysses is indeed dead, still do not press me to marry again immediately, waitfor I would not have skill in needlework perish unrecordedtill I have completed a pall for the hero Laertes, to be in readiness against the time when death shall take him. He is very rich, and the women of the place will talk if he is laid out without a pall.' "This was what she said, and we assented; whereon we could see her working on her great web all day long, but at night she would unpick the stitches again by torchlight. She fooled us in this way for three years and we never found her out, but as time wore on and she was now in her fourth year, one of her maids who knew what she was doing told us, and we caught her in the act of undoing her work, so she had to finish it whether she would or no. The suitors, therefore, make you this answer, that both you and the Achaeans may understand'Send your mother away, and bid her marry the man of her own and of her father's choice'; for I do not know what will happen if she goes on plaguing us much longer with the airs she gives herself on the score of the accomplishments Minerva has taught her, and because she is so clever. We never yet heard of such a woman; we know all about Tyro, Alcmena, Mycene, and the famous women of old, but they were nothing to your mother any one of them. It was not fair of her to treat us in that way, and as long as she continues in the mind with which heaven has now endowed her, so long shall we go on eating up your estate; and I do not see why she should change, for she gets all the honour and glory, and it is you who pay for it, not she. Understand, then, that we will not go back to our lands, neither here nor elsewhere, till she has made her choice and married some one or other of us." 2 Select the correct answer. Which detail is present in the painting but not in the passage itself? A. The suitors are kind and romantic, eager to win Penelope's heart. B. Penelope's son is determined to protect his mother from the suitors. C. The tapestry Penelope is weaving is very large. D. The maids help Penelope with her weaving. 642 x 257 what is the answer to it? Read Franklin Roosevelts request for a declaration of war.What are the main purposes of this speech? 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