Mathematics College

Please help meeeeeeee

Answers

Answer 1

the answer is B, because all of the other answers represent a correct way to write 10^-2

Answer 2

Answer:

the answer is b..all the answer optioni get 0.01

Related Questions

Rewrite the expression with a perfect square: x^2 - 14x + 11

Answers

Factoring x2-14x+11

The first term is, x2 its coefficient is 1 .

The middle term is, -14x its coefficient is -14 .

The last term, "the constant", is +11

Step-1 : Multiply the coefficient of the first term by the constant 1 • 11 = 11

Step-2 : Find two factors of 11 whose sum equals the coefficient of the middle term, which is -14 .

-11 + -1 = -12 -1 + -11 = -12 1 + 11 = 12 11 + 1 = 12

Observation : No two such factors can be found

Suppose box A contains 4 red and 5 blue poker chips and box B contains 6 red and 3 blue poker chips. Then a poker chip is chosen at random from box A and placed in box B. Now, a poker chip is chosen at random from those now in box B. What is the probability a blue poker chip was transferred from box A to box B, given that the coin just chosen from box B is red?

Answers

Answer:

0.5172 = 51.72% probability a blue poker chip was transferred from box A to box B, given that the coin just chosen from box B is red

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Coin chosen from box B is red.

Event B: Blue poker chip transferred.

Probability of choosing a red coin:

7/10 of 4/9(red coin from box A)

6/10 of 5/9(blue coin from box A). So

[tex]P(A) = \frac{7}{10}*\frac{4}{9} + \frac{6}{10}*\frac{5}{9} = \frac{28 + 30}{90} = 0.6444[/tex]

Blue chip transferred, red coin chosen:

6/10 of 5/9. So

[tex]P(A \cap B) = \frac{6}{10}*\frac{5}{9} = \frac{30}{90} = 0.3333[/tex]

What is the probability a blue poker chip was transferred from box A to box B, given that the coin just chosen from box B is red?

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.3333}{0.6444} = 0.5172[/tex]

0.5172 = 51.72% probability a blue poker chip was transferred from box A to box B, given that the coin just chosen from box B is red

2y^2 + 4y^2 + 8 + 3 helpp

Answers

Answer:

Step-by-step explanation:

2y + 4y = 6y = 6y + 8 + 3 Add the numbers: 8 + 3 = 11 hope this helps ;) ITS A ME LUIGI ON THE XBOX ONE WAAAAAAAAAAAAAAAAAAAAAAAAHHOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

Find the positive of x that makes the equation true.
x^2 = 225

Answers

Answer:

x = 15

Step-by-step explanation:

15 * 15 = 225

Answer:

X = 15

Step-by-step explanation:

This is because if you square 15, you get 225.

MUST HELP!!!! (50 POINTS) +BRAINLEST +5 STARS +THANKS ON PROLFILE!!!!

Lines AA’, BB’, CC’ intersect at the _________

*use one of the words below to fill in the blank*

Equal 2.4 point of dilation

Scale factor perimeters (7.2,4.8)

Enlargement areas (4.8, 9.6)

Answers

[tex]\pink{▬▬▬}[/tex][tex]\red{▬▬▬}[/tex][tex]\green{▬▬▬}[/tex][tex]\blue{▬▬▬}[/tex][tex]\orange{▬▬▬}[/tex]

Equal 2.4 point of dilation

[tex]\pink{▬▬▬}[/tex][tex]\red{▬▬▬}[/tex][tex]\green{▬▬▬}[/tex][tex]\blue{▬▬▬}[/tex][tex]\orange{▬▬▬}[/tex]

Which statement is correct?

Thank you for anyone who answers

Answers

Answer:

I believe the correct answer is C

x2-25 -0
Respuesta y procedimiento

Answers

Answer:

=x2+−25+0

=(x2)+(−25+0)

=x^2+−25

Aqui esta la respuesta y el procedimiento

If p represents a number, which expression represents "p divided by 7, increased by 8"?

Answers

Answer: p/7 + 8

Step-by-step explanation:

Answer:

Step-by-step explanation:

126 (x +77)
find x!!

Answers

i’m pretty sure x=-77 but i didn’t know what it equals to so i just said it equals 0

7 points
Sue has a sticker collection with 36 red, 72 blue, and 18 red. She wants to
arrange the stickers in equal rows with only one type of sticker in each
row. Which of the following choices could Sue choose? *
18
4
12
8

Answers

I think is 18 if not then I can’t help you

The following P-Q data points (shown in Table 1) are obtained from the manufacturer's
static pressure curve for a single fan unit at 750 rpm and a density of 1.2 kg/m3. The speed is
to be increased to 850 rpm, the density changes to 1.16 kg/m3 and two fans are to be
operated in parallel.
Table 1
Quantity(
ms) 100
155
190
212
Pressure (Pa)
235
250
2000
1500
1050
500
0
Calculate the corrected single fan curve at 850 rpm and a density of 1.16 kg/m^3?

Answers

don't know

Mark as brainlist mate

because making my answer as brainlist you would not lose anything।।।।।।।।।।

Last year, 5,200 people entered a contest to win free swimming lessons at the rec center. This year, there was 1 4% increase in the number of entries. How many entries were there this year? Enter your response in the gridded area.

Answers

Honestly math isn’t my subject. So the answer is defo not -0.5

Ms. Day drew a rectangle
on the board with a width
of 14 cm and a diagonal
length of 50 cm. Find the
length of this rectangle in
centimeters.

Answers

Answer:

700

Step-by-step explanation:

1778 centimetres. Hope this helps!

find the value of x in each triangle
please help me i really need help please

Answers

6. 60. 5. I’m not sure. 4. 90

What is the volume of a cone with a radius of 6 inches and a height of 15 inches? (Use 3.14 for π.)

188.4 in. 3
565.2 in. 3
726.8 in. 3
1,695.6 in. 3
Thx

Answers

Answer:

1,695.6 in. 3

Step-by-step explanation:

What is the measure of the base in the triangle below?
B
4x + 1
3х - 8
2x + 23
11
O 45
025
30

Answers

ABC is an isosceles triangle and AB=AC.

Solving 4x+1=2x+23, we get x=11.

So, BC=3(11)-8=33-8=25

Please help is for nowwww

Answers

Answer:

Draw a line going from 360 on the vertical line to 30 on the horizontal line.

Step-by-step explanation:

12 meters a minute. 30 minutes. 360 meters in total.

An endangered species only has 350 animals left in the wild. If the species is decreasing by 7.5% each year, how many animals are left after 2 years?

Answers

Answer:

350 X 7.5 % = 26.25

26.25 + 2 = 52.5

350 - 53 = 297 answer

Step-by-step explanation:

Evaluate the expression for r=250.

4.5r?

Answers

Answer:

you would do 4.5 * 250 and then you would get an answer of 1125

Step-by-step explanation:

hope this helps have a great rest of your day/night

A desk is on sale for $217, which is 38% less than the regular price. What is the regular price?

Answers

The regular price is 350

9−z9, minus, z when z = 8z=8z, equals, 8.

Answers

Equal is 89 cause z9=8z

Jasmine spent 2 2 over 3 hours at the park. Kyle spent 1 1 over 3 hours at the same park. How much longer, in hours, did Jasmine spend at the park than Kyle?

Answers

The answer is 1 1/3 hours

Help me ASAP for heart, 5 star rating and comment
There is 8 questions which will be posted one after the other. Questions 1-7 the person who answers correctly and quickly will get a heart and 5 star rating and comment and for the 8th question the correct person will get the rewards + brainiest.

1. If U = 35 and V = 7 and T =4 and V = U + AT. How much Is A worth

This question is worth 10 points numbers WILL get higher

Answers

Answer:

A=-7

Step-by-step explanation:

7=35+A4

4A=-28

A=-7

Graph the line described.
through (-3,-9); m = 4

Answers

The equation of the line would be y=4x+3

five people were asked about the time in a week they spend in doing social work in their community they said 7,10,13,20,15 hours respectively.

which methametical concept is used in this question??

what value is depicted in this question??

Answers

Answer:

Mean time and 13

Step-by-step explanation:

Given that

here is a five people and they spend the work in 7,10,13,20,15 hours respectively

Therefore here the concept i.e. used is average time or the meantime

And, this can be determined below:

= Sum of observations ÷ number of observations

= (7 + 10 + 13 + 20 + 15) ÷ 5

= 13

What is the area of the shaded region?

Answers

Answer:

Step-by-step explanation:

( (23 * 13) / 2 ) - ( (13 * 13) / 2 ) = ( 299 / 2 ) - ( 169 / 2 ) = 149.5 - 84.5 = 65

Numbers are slightly unclear but I think this is right.

Area of triangle = base x height x 1/2

Area of the shaded region:
= 22 x 13 x 1/2

= 286 x 1/2

= 143

the truth table for the formula (X → Y ) ∨ (Z → ¬X)

Answers

Answer:

[tex]\begin{array}{c|c|c||c}X & Y & Z & (X \to Y) \lor (Z \to \lnot X) \\ \cline{1-4} \rm T & \rm T & \rm T & \rm T\\ \rm T & \rm T & \rm F & \rm T \\ \rm T & \rm F & \rm T & \rm F \\ \rm T & \rm F & \rm F & \rm T \\ \cline{1-4} \rm F & \rm T & \rm T & \rm T \\ \rm F & \rm T & \rm F & \rm T \\ \rm F & \rm F & \rm T & \rm T \\ \rm F & \rm F & \rm F & \rm T\end{array}[/tex].

[tex]\begin{array}{c|c|c||c}X & Y & Z & (X \to Y) \lor (Z \to \lnot X) \\ \hline \rm T & \rm T & \rm T & \rm T\\ \rm T & \rm T & \rm F & \rm T \\ \rm T & \rm F & \rm T & \rm F \\ \rm T & \rm F & \rm F & \rm T \\ \hline \rm F & \rm T & \rm T & \rm T \\ \rm F & \rm T & \rm F & \rm T \\ \rm F & \rm F & \rm T & \rm T \\ \rm F & \rm F & \rm F & \rm T\end{array}[/tex].

Step-by-step explanation:

Let [tex]A[/tex] denote a Boolean variable.

The negation of [tex]A[/tex] ([tex]\lnot A[/tex]) is false if when [tex]\!A[/tex] is true, and true when [tex]A\![/tex] is false. In a truth table:

[tex]\begin{array}{c||c} A & \lnot A \\ \cline{1-2} \rm T & \rm F \\ \rm F & \rm T\end{array}[/tex].

[tex]\begin{array}{c||c} A & \lnot A \\ \hline \rm T & \rm F \\ \rm F & \rm T\end{array}[/tex].

Let [tex]B[/tex] denote another Boolean variable. The material implication "[tex]A[/tex] implies [tex]\!B[/tex]" ([tex]A \to B[/tex]) is true unless [tex]B\![/tex] is false when [tex]A\![/tex] is true.

[tex]\begin{array}{c|c||c} A & B & A \to B \\ \cline{1-3} \rm T & \rm T & \rm T \\ \rm T & \rm F & \rm F \\ \rm F & \rm T & \rm T \\ \rm F & \rm F & \rm T\end{array}[/tex].

[tex]\begin{array}{c|c||c} A & B & A \to B \\ \hline \rm T & \rm T & \rm T \\ \rm T & \rm F & \rm F \\ \rm F & \rm T & \rm T \\ \rm F & \rm F & \rm T\end{array}[/tex]

The logical or "[tex]A[/tex] or [tex]B[/tex]" is true when either [tex]A\![/tex] or [tex]B\![/tex] is true (and also when both are true.)

[tex]\begin{array}{c|c||c} A & B & A \lor B \\ \cline{1-3} \rm T & \rm T & \rm T \\ \rm T & \rm F & \rm T \\ \rm F & \rm T & \rm T \\ \rm F & \rm F & \rm F\end{array}[/tex]

[tex]\begin{array}{c|c||c} A & B & A \to B \\ \hline \rm T & \rm T & \rm T \\ \rm T & \rm F & \rm F \\ \rm F & \rm T & \rm T \\ \rm F & \rm F & \rm T\end{array}[/tex].

Start by finding the value of [tex]\lnot X[/tex], [tex](X \to Y)[/tex], and [tex](Z \to \lnot X)[/tex] for each of the [tex]2^3 = 8[/tex] possible combinations of [tex]X[/tex], [tex]Y[/tex], and [tex]Z[/tex].

[tex]\begin{array}{c|c|c||c||c|c}X & Y & Z & \lnot X & (X \to Y) & (Z \to \lnot X) \\ \cline{1-6} \rm T & \rm T & \rm T & \rm F & \rm T & \rm F\\ \rm T & \rm T & \rm F & \rm F & \rm T & \rm T \\ \rm T & \rm F & \rm T & \rm F & \rm F & \rm F \\ \rm T & \rm F & \rm F & \rm F & \rm F & \rm T \\ \cline{1-6} \rm F & \rm T & \rm T & \rm T & \rm T & \rm T \\ \rm F & \rm T & \rm F & \rm T & \rm T & \rm T \\ \rm F & \rm F & \rm T & \rm T & \rm T & \rm T \\ \rm F & \rm F & \rm F & \rm T & \rm T & \rm T \end{array}[/tex].

[tex]\begin{array}{c|c|c||c||c|c}X & Y & Z & \lnot X & (X \to Y) & (Z \to \lnot X) \\ \hline \rm T & \rm T & \rm T & \rm F & \rm T & \rm F\\ \rm T & \rm T & \rm F & \rm F & \rm T & \rm T \\ \rm T & \rm F & \rm T & \rm F & \rm F & \rm F \\ \rm T & \rm F & \rm F & \rm F & \rm F & \rm T \\ \hline \rm F & \rm T & \rm T & \rm T & \rm T & \rm T \\ \rm F & \rm T & \rm F & \rm T & \rm T & \rm T \\ \rm F & \rm F & \rm T & \rm T & \rm T & \rm T \\ \rm F & \rm F & \rm F & \rm T & \rm T & \rm T \end{array}[/tex].

The value of [tex](X \to Y) \lor (Z \to \lnot X)[/tex] is true whenever either [tex](X \to Y)[/tex] or [tex](Z \to \lnot X)[/tex] is true (or both.) The combination [tex]X = \rm T[/tex], [tex]Y = \rm F[/tex], and [tex]Z = \rm T[/tex] is the only one among the eight where neither [tex](X \to Y)\![/tex] nor [tex](Z \to \lnot X)\![/tex] is true. [tex](X \to Y) \lor (Z \to \lnot X)\![/tex] would evaluate to true for all other combinations.

Hence, the truth table would be:

At noon, a tank contained 20 cm of water. After several hours, it contained 18 cm of water. What is the
percent decrease of water in the tank?
The percent decrease of water in the tank is
%.

Answers

Answer:

10%

Step-by-step explanation:

Percentage decrease = Difference/Original value

So,

Percentage decrease

[tex] = \frac{2}{20} \times 100 \\ = 2 \times 5 \\ = 10[/tex]

So there fore the percentage decrease is 10%

What is the sum of the interior angles of nonregular hexagons?

Answers

Answer:

They add up to 720 degrees

Answer:

360 I think. Hope i helped! :)

(1) Justin and Ben are scuba diving. Justin is 7 meters below the
surface of the water. Ben is 3 meters above Justin. Find Ben's
position relative to the surface of the water.

Answers

Answer:

Ben is 4 meters below the surface area.

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