Mathematics College

Pls help! Due soon. I will give brainiest *no links*

Pls Help! Due Soon. I Will Give Brainiest *no Links*

Answers

Answer 1

Answer:

#2 a.

#3 c.

#4 a.

#5 c.

#6 b.

Related Questions

Q2.
a) Is the equality √a^4 = a valid for all values of a? Explain.
​

Answers

Answer:

The equality is only true for [tex]a = 0\ and\ 1[/tex], not for all values

Step-by-step explanation:

Given

[tex](\sqrt a)^4 = a[/tex]

Required

Determine if it is valid

[tex](\sqrt a)^4 = a[/tex]

Evaluate the exponent

[tex](a^\frac{1}{2})^4 = a[/tex]

[tex]a^\frac{1*4}{2} = a[/tex]

[tex]a^2 = a[/tex]

Rewrite as:

[tex]a^2 - a = 0[/tex]

Factorize

[tex]a(a- 1) = 0[/tex]

[tex]a =0\ or\ a - 1 = 0[/tex]

[tex]a =0\ or\ a = 1[/tex]

The equality is only true for [tex]a = 0\ and\ 1[/tex], not for all values

A medical researcher wants to determine whether a drug changes the body's temperature. Seven test subjects are randomly selected, and the body temperature (in degrees Fahrenheit) of each is measured. The subjects are then given the drug and after 20 minutes, the body temperature of each is measured again. The results are listed below. At α=0.05, is there enough evidence to conclude that the drug reduces the body's temperature? Subject 1 2 3 4 5 6 7 Initial Temperature 103.4 102.5 101.1 103.4 102.9 100.2 100.9 Second temperature 99.2 98.4 98.2 99 98.6 99.7 97.8

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Answer:

Step-by-step explanation:

Write an equation that you will use to solve for x. Solve for x.

Answers

Answer:

Step-by-step explanation:

7x + 5 = 215

2. Write the equation of the circle with a center at
(-2, -8) and a radius of v10.

A. (x + 2)^2 + (y + 8)^2 = 25
B. (x - 2)^2 + (y – 8)^2 = 10
C. (x + 2)^2 + (y + 8)^2 = 10
D. (x + 2)^2 + (y + 8)^2 = 100
E. (x - 2)^2 + (y - 3)^2 = 100

Answers

Answer:

C. [tex] (x +2) ^2 +(y+8)^2 =10 [/tex]

Step-by-step explanation:

Center of the circle (h, k) = (-2, - 8)

Radius [tex] r=\sqrt {10}[/tex]

Equation of circle in center radius form is given as:

[tex] (x - h) ^2 +(y-k) ^2 =r^2 [/tex]

Plugging the values of h, k and r in the above equation, we find:

[tex] [x - (- 2)] ^2 +[y-(-8) ]^2 =(\sqrt {10})^2 [/tex]

[tex] (x +2) ^2 +(y+8)^2 =10 [/tex]

What is the slope of (2,3) and (5,-3)

Answers

Answer:

-2

Explanation:

Slope formula:

y2 - y1 ÷ x2 - x1

-3 - 3 = -6

5 - 2 = 3

-6 ÷ 3 = -2

how many 5/8 pound bags does it take to get 16 pounds of soil?

Answers

Answer:

10

Step-by-step explanation:

25.6 bags or 25 3/5 bags




Tom read 20 books, 12 magazines, and 18 newspaper articles last year.
Based on this data, what percentage of the material that Tom read is a magazine?

Answers

Answer:

Step-by-step explanation:

20 dude hahah

If an object moves in uniform circular motion in a circle of radius R = 2.00 meters, and the object takes 5.00 seconds to complete ten revolutions, calculate the centripetal acceleration. ALWAYS use significant figure rules. Remember that these rules apply to all numbers that are measurements. a= _____ m/s2 39.4 m/s 2 100. m/s 2 158 m/s 2 50.2 m/s 2

Answers

The centripetal acceleration of the object is .
Explanation:
We have,
Radius of a circular path is 2 m
It takes 5 seconds to complete 10 revolutions. It means its angular velocity is :

The centripetal acceleration of the object is given by :

So, the centripetal acceleration of the object is .

please help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer: -7

Step-by-step explanation: -7 x -7 equals 49

BRAINLIEST FOR CORRECT ANSWER ASAP

Answers

Answer:

A. 3x3x3x3 = 81 because you multiply 3 by itself 4 times

Answer:

it is 3×3×3×3=81 because it is said that

3 squared is 3×3 so I did the same tthing. hope it helps you good evening.

give the correct triangle congruence theroen

Answers

I think it’s b.

Sorry if I’m wrong .

Stacy started with $40 In a savings account that earns 5% annually. How much interest will she get in one year? ​

Answers

Answer:

$2

Step-by-step explanation:

She procures 5% of $40 every year. To discover the amount she makes in 1 year, increase 5% and 40,40*5%.Convert 5% to a decimal by isolating by 100.5%/100=0.05  40*0.05=2

What is the solution to the inequality x2 + 5x ≥ 6?

Answers

7x>6
.hopes it helps

Answer:

x ≤ –6 and x ≥ 1

Step-by-step explanation:

PLEASE HELPPP! I'LL GIVE BRAINLEST​

Answers

2 and 4
The number 3,124 when divided by 2 gives you 1,562, and when 3,124 is divided by 4 it gives you 781.

Distance between Train 1 and Train 2 = 95 miles.
Average speed of Train 1 = 45 mph.
Average speed of Train 2 = 60 mph.
If both trains leave at the same time and travel toward each other but on parallel tracks, in how much time will their engines be opposite each other? (Hint: When the engines are opposite each other, together the trains will have traveled 95 miles. Their relative speed of travel is the sum of their respective speeds, or 105 mph.)
Travel time = hours.

Answers

9514 1404 393

Answer:

  19/21 hours, about 54 minutes 17 seconds

Step-by-step explanation:

The time is found from ...

  time = distance/speed

  time = (95 mi)/(105 mi/h) = 95/105 h = 19/21 h

The trains will meet after 19/21 hours, about 54 minutes, 17 seconds.

Answer:

19

Step-by-step explanation:

10 points
Question #5: At Faith's Fabulous Flowers, she uses 3 dozen roses in her
"perfect day" bouquet. If she charges $39.99 for the entire bouquet, what
is the cost per rose?
Your answer

Answers

Answer:

i need help on this question

Step-by-step explanation:

How many kilometers does Saturn travel in its orbit in one hour? ​

Answers

Answer:

Hey!! I found this online for you :)

Step-by-step explanation:

Saturn revolves or orbits around the Sun once every 29.4 Earth years, or once every 10,755.7 Earth days. Saturn travels at an average speed of 21,637 miles per hour or 34,821 kilometers per hour in its orbit around the Sun.

Hope this helps!

Have a nice day <3

If x varies directly as y, find x when y = 8.
x = -4 when y = 10
X =

Answers

Answer:

9.6

Step-by-step explanation:

I think!

Plz help me well mark brainliest if correct!

Answers

Answer:

its C

Step-by-step explanation:

NEEED HELP ASAP PLEASE

Answers

Step-by-step explanation:

[tex]( {m}^{15} )( {m}^{3} ) ^ {- 4} \\ = ( {m}^{15} )( {m}^{3 \times - 4} ) \\ = ( {m}^{15} )( {m}^{ - 12} ) \\ = {m}^{15 + ( - 12)} \\ = {m}^{15 - 12} \\ = {m}^{3} \\ {m}^{x} = {m}^{3} \\ x = 3[/tex]

The coordinate grid shows the plot of four equations.
Which set of equations has (-1, 5) as its solution? (4 points)
1) A and B
2) B an d 3) A and C 4) B and C

Answers

Answer:

Your answer would be A and B

Step-by-step explanation:

Simply look for the coordinates on the graph and look for the name of the lines that intersect there.

Use the distributive property to write the sum of the product. 5z-10

Answers

Answer:

5(z-2)

Step-by-step explanation:

Help mehhhh plz ASAP

Answers

Answer:75

Step-by-step explanation:2 1/2 is equal to 5 halves. If each half is equal to 15 then all you do is multiply 15 by 5

What is the probability of choosing a red card or a face card from a deck of cards? Type your answer as a fraction.

Answers

The probability of choosing a red card or a face card from a deck of cards will be 19/26.

What is probability?

Its simple notion is that something will most likely occur. The favorable event's proportion to the overall number of occurrences.

Then the probability of choosing a red card or a face card from a deck of cards will be

We know that there are 52 cards in a deck of cards.

Then the total event will be

Total events = 52

And we know that a face card means a king, queen, or jack.

And the favorable event will be

Favorable event of face card = 12

Favorable event of red card = 26

Then the probability will be

P = 12 / 52 + 26 / 52

P = 3 / 13 + 1 / 2

P = 19 / 26

More about the probability link is given below.

https://brainly.com/question/795909

#SPJ1

Find the total surface area: ​

Answers

Answer:

612 cm²

Step-by-step explanation:

Total surface area = area of all the nets in that make up the shape

✔️There are 2 equal rectangles of the following dimensions:

L = 10 cm

W = 4 cm

Area = 2(10*4) = 80 cm²

✔️There are 2 equal rectangles of the following dimensions:

L = 10 cm

W = 17 cm

Area = 2(10*17) = 340 cm²

✔️There are 2 equal rectangles of the following dimensions:

L = 4 cm

W = 17 cm

Area = 2(17*4) = 136 cm²

✅Total surface area = 80 + 340 + 136 = 612 cm²

Which line has a slope of 0?

Answers

y= -10
there is no x value so there is no slope, -10 is the y-intercept

Answer:

y =-10

Step-by-step explanation:

because there is no value of x so the slope of y is-10

-8(n-5)= -2(4n+11)

SOMEONE PLEASE SOLVE IT PLEASEEEE

Answers

use Photomath and then you can get your answer!

Answer:

Use papa math

Linear parent function fis graphed on the grid.

Which graph best represents h(x) = -f(x) + 3?

Answers

It should be G, or the bottom left answer! I'm not sure about it but anyway I hope this helps!

Answer:option 2

Step-by-step explanation:

What is a equivalent expression to 4(x+12)-3y

Answers

4x+48-3y

you can just distribute the 4 to x+12

help fast please i’m bad with math

Answers

i dont know but i think either B or A

Answer:

FALSE, TRUE, FALSE, FALSE

Step-by-step explanation:

pi/2>2 - FALSE

3pi>9 - TRUE

2pi-1<5 - FALSE

pi+8<11 - FALSE

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