Please answer 27-40, In simplified form. Thanks. No links

Answers

Answer 1

Answer:

-13

Step-by-step explanation:


Related Questions

In creating a new scale for the mercury thermometer, anders celsius initially set the boiling point of water at _____. a. 0° b. 32° c. 100° d. 273°

Answers

Answer: 100 °

Step-by-step explanation:

Is 5.23 * 10 the 8th power in scientific notation?

Answers

Answer:

yes

Step-by-step explanation:

anything with 10^n multiplied by a number from 0 to 10 is

In a school there are 1970 pupils. If there are 799 boys, how many more girls are there than boys?

Answers

372.




Explanation:


Subtract 799 from 1970, and you get 1171.



Subtract 799 from 1171 and you get your answer, which is 372.

As per linear equation, there are 372 more girls in school than boys.

What is a linear equation?

"A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant."

Given, there are 1970 pupils.

There are 799 boys in the school.

Therefore, the number of girls in the school is

[tex]= (1970-799)\\= 1171[/tex]

Therefore, the number of girls more than boys in the school is

[tex]= (1171-799)\\= 372[/tex]

In that school , there are 372 more girls than total number of the boys.

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Which one should I choose

Answers

Answer:

b) Quad ABCD must be a rectangle and could be a rhombus

Step-by-step explanation:

:)

Question:

A room is half as long again as it is board. The cost of carpeting the room at Rs. 3.25 per m² is Rs 175.50 and the cost of papering the walls at Rs 1.40 per m² is Rs 240.80. If 1 door and 2 windows occupy 8 m² , find the dimensions of the room.
[tex] \rule{200pt}{5pt}[/tex]
Don't Spam ❎​

Answers

Given A room is half as long again as it is broad

Let the breadth of the room x m

length of the room x + x/2 = 3x/2m

Area of the room , x × 3x/2 = 3x²/2m

Given , cost of carpeting the room at Rs. 3.25m⁻²

So , total cost , 3x²/2 × 3.25

But , Total cost of carpeting is given as 175.50 so ,

(3x²/2 )× 3.25 = 175.50 x² = 175.50 × 2 / 3.25 × 3 x² = 36 x = 6

Breadth x = 6 mlength 3x/2 = 9m

let the height of the room H m

Area of the four wall = 2(L+ b)× h 2(6+9)× H

= 30H m²

Area of the of the one door and two window is 8m²

8m² Area to be prepared = Area of four wall - area of two window and 1 door = (30H - 8) m²

Given cost of preparing wall is Rs. 1.40m²

total cost of preparing wall is (30H - 8) × 1.40

Total cost of preparing wall is given as 240.80

comparing , (30H - 8 ) × 1.40 = 240.80

(30H - 8 ) = 240.80 /1.40 = 172 30H -. 8 = 172 30H = 180 H = 180/30 = 6

Hence, Dimensions of the room are lengths 9m , breadth 6m and height 6m

ab" that goes through points (0,9)
Write an exponential function in the form y
and (10,9216).

Answers

[tex]y = ab^x \\\\[-0.35em] ~\dotfill\\\\ (\stackrel{x}{0}~~,~~\stackrel{y}{9})\qquad \implies 9=ab^0\implies 9=a(1)\implies 9=a~\hfill \underline{y=9b^x} \\\\\\ (\stackrel{x}{10}~~,~~\stackrel{y}{9216})\qquad \implies 9216 = 9b^{10}\implies \cfrac{9216}{9}=b^{10}\implies 1024=b^{10} \\\\\\ \sqrt[10]{1024}=b\implies 2=b~\hfill \underline{y=9(2)^x}[/tex]

The Exponential function is [tex]y = 9(2^{x} )[/tex]

What is Exponential function?

The mathematical expression for an exponential function is f (x) = aˣ where “x” denotes a variable and “a” denotes a constant that is the base of the function and ought to be greater than 0. The most regularly utilized remarkable capability base is the supernatural number e, which is roughly equivalent to 2.71828.

Given function

y = abˣ

and coordinates (0, 9) and (10, 9216)

when x = 0,  y = 9

[tex]y = ab^{x}[/tex]

substitute values

9 = ab⁰

9 = a

and [tex]y = ab^{x}[/tex]

when x= 10 and y = 9216

9216 = 9(b)¹⁰

1024 = b¹⁰

[tex]\sqrt[10]{1024}[/tex] = b

b = 2

[tex]y = 9(2^{x} )[/tex]

Hence equation is [tex]y = 9(2^{x} )[/tex].

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Pls help i will give 5 starts and brainliest question is down below 9:22

Answers

Answer:

r, p, q

Step-by-step explanation:

Answer:

#30 is 8.40   B)

#31 is R P Q  A)

Step-by-step explanation:

If RV=w and SU=w–30, what is the value of w?

Answers

Answer:

w = 60

Step-by-step explanation:

the midsegment SU is half the measure of side RV, then

SU =  RV , so

w - 30 =  w ( multiply through by 2 to clear the fraction )

2w - 60 = w ( subtract w from both sides )

w - 60 = 0 ( add 60 to both sides )

w = 60

Draw an example of a line RS. Label point T between points R and R. Using point T , draw ray TV.

Answers

The line RS would extend in both direction, while the ray TV would extend in one direction

What are lines?

A line is an undefined term of geometry; and it can only be defined through examples. However, the general notion is that a line extends in both directions without end

What are rays?

Rays are extracts from a line; that have a fixed point and an endless point

Using the above definitions, we can draw the line RS such that the point T is located on line RS and the point T extends to point V to form a ray TV

See attachment for the diagram

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Which of the following quadratics will have a maximum value at x = 3?
(1) y = x² - 6x +19
(3) y=-2x² + 20x - 49
(2) y=-4x² +24x-21
(4) y = 2x² – 3x+7

Answers

[tex]\huge\text{Hey there!}[/tex]

[tex]\mathsf{y = x^2 - 6x + 19}\\\mathsf{y = 6^2 - 6(3) + 19}\\\mathsf{y = 36 - 18 + 19}\\\mathsf{y = 18 + 19}\\\mathsf{y = 37}[/tex]

~~~~~~~~~~~~~~~~~

[tex]\mathsf{y = -2x^2 + 20x - 49}\\\mathsf{y = -2(3)^2 + 20(3) - 49}\\\mathsf{y = -2(9) + 60 - 49}\\\mathsf{y = -18 + 60 - 49}\\\mathsf{y = 42 - 49}\\\mathsf{y = -7}[/tex]

~~~~~~~~~~~~~~~~~~~~~

[tex]\mathsf{y = -4x^2 + 24x - 21}\\\mathsf{y = -4(3)^2 + 24(3) - 21}\\\mathsf{y = -4(9) + 72 - 21}\\\mathsf{y = -36 + 72 - 21}\\\mathsf{y = 36 - 21}\\\mathsf{y = 15}[/tex]

~~~~~~~~~~~~~~~~~~~~~

[tex]\mathsf{y = 2x^2 - 3x + 7}\\\mathsf{y = 2(3)^2 - 3(3) + 7}\\\mathsf{y = 2(9) - 9 + 7}\\\mathsf{y = 18 - 9 + 7}\\\mathsf{y = 9 + 7}\\\mathsf{y = 16}[/tex]

~~~~~~~~~~~~~~~~~~~~

[tex]\large\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

HURRY PLEASE SOLVE will give brainliest!!!​

Answers

2

x-9 = -5

2=x 2+x + 4-2=2 2-6+

-4

2

X

+2= 4 + 62 =66 +9 = 75

3.
Which system of equations has infinite solutions? Select all that apply.
A. y = 4x + 4
y=x - 4
B. y = -2x + 4
y=x+4
-6
C. y=4
x=-2
D. y = 5x + 3
3y = 15x +9

Answers

Answer:

B and D    

Step-by-step explanation:

in D 15x+9=15x+9

in B x=0

a machine prints 1500 newspapers in 45 minutes how many does it print in 12 hours

Answers

Answer:

ans is 24000

Step-by-step explanation:

frist convert 12 into mins

/ it with 45

now multiple it with 1500

now ans 24000

(Assuming it works at a constant rate)

45 minutes = 3/4 of an hour

If it works for 12 hours, it works for 12 : 3/4 = 16 times more than 45 minutes.

Since it works at a constant rate, it must also print 16 times more paper than in 45 minutes.

So, in 12 hours, the machine print 1500 x 16 = 24000 (papers)

Erik rides his motorbike 26/23 miles in 23 hour. What is Erik’s average speed in miles per hour?

Answers

Answer:

Average speed = 40 mph.

Step-by-step explanation:

The charge of an atom is the sum of the charges of its protons, neutrons, and electrons.

• Each proton has a charge of e.
• Each neutron has a charge of 0.
Each electron has a charge of -e.

An atom consists of 6 protons, 10 neutrons, and 4 electrons.
How many electrons would need to be added to make the charge of the atom 0?

Answers

Answer:

2 electrons

Step-by-step explanation:

2 electrons is the answer

If u need explanation do mention in comments

Answer:

*2 electrons more*

Explanation:

In an atom the number of electron and protons must be same.

Otherwise, it will have charge and form ions.   [ ignore the neutrons ]

Here,

protons: 6electrons: 4

The electron and proton is unbalanced, In order to make them same.

2 more electrons need to be added to make total 6 electrons.

What is the radical form of 32x 1/6 ?

Answers

Step-by-step explanation:

Given:

32^(1/6)

To Find:

Convert to Radical form 32^(1/6)?

Solution:

here, given that- 321/6

Since, we know that - If n is a positive integer

that x and a is a real number or a factor, then

an = Vu?

=

now, using this rule to convert 321/6 to a radical,

where a=32, x=1 and n=6

√32

Hence,

Exact form:

32

Decimal Form:

2

find the volume of the cubes or rectangular prisms in cubic centimeters.36/125 cm 3 6/125 cm 3 8/125 cm 3 1/125 cm 3cube with a side length of cmrectangular prism with a length,width, and height of cm, cm,and cm, respectivelycube with a side length of cmrectangular prism with a length,width, and height of cm, cm,and cm, respectively

Answers

Applying the formula for volume of a rectangular prism and volume of a cube, we would have:

a. 6/125 cm³

b. 8/125 cm³

c. 1/125 cm³

d. 36/125 cm³

What is the Volume of a Rectangular Prism and a Cube?Volume of rectangular prism = length × width × height.Volume of cube = (side length)³

a. Volume of rectangular prism = length × width × height = (1/5) × (2/5) × (3/5)

Volume of rectangular prism = 6/125 cm³

b. Volume of cube = (side length)³ = (2/5)³

Volume of cube = 8/125 cm³

c. Volume of cube = (side length)³ = (1/5)³

Volume of cube = 1/125 cm³

d. Volume of rectangular prism = length × width × height = (3/5) × (4/5) × (3/5)

Volume of rectangular prism = 36/125 cm³

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What is the variable in the following expression: 7x + 8
A. 7
B. X
C. 8

Answers

Answer:

B. X

Step-by-step explanation:

The variable is the unknown term.

This is represented by a letter.

In this case, the variable is "x".

So the answer is B.

the length of a rectangle is 3 meters more than twice its width what is the width of the rectangle if the area is 9 m^2. pls help. solve by using applications of quadratics

Answers

Step-by-step explanation:

answer is shown above, that is a tricky question though.

What's the difference between 2/8 and 5/8?

Answers

Answer:

-3/8

Step-by-step explanation:

3/8 ig ???? cuz 5-2=3 and its the same denominator

Anja collected data about the number of dogs 9th-grade students own. she created this histogram to represent the data and determined that it is skewed right. a graph shows number of dogs labeled 0 to 2 on the horizontal axis and frequency on the vertical axis. 0 dogs at frequency 20. 1 dog at frequency 15. 2 dogs at frequency 12. which statement is true about anja’s claim? she is incorrect; the histogram is skewed to the left because more data is on the left side. she is incorrect; the histogram is skewed to the left because there is more data on the right side. she is incorrect; the histogram is symmetrical because the right side is equal to the left side. she is correct; the histogram is skewed to the right because there is less data on the right side.

Answers

As the histogram is skewed to the right because there is less data on the right side. So, she is correct that is option D.

What is a histogram graph?

A histogram graph is a graphical representation of given data. It is a bar graph that represents a frequency distribution by rectangles separated from each other with equal spaces.

A graph shows several dogs labeled 0 to 2 on the horizontal axis and frequency on the vertical axis.

here, we can see from a given data that as the number of dogs increases the frequency on the vertical axis decreases. At 0 dogs the frequency is 20, at 1 dog the frequency is 15, At 2 dogs the frequency is 12.

The histogram is skewed to the right because there is less data on the right side as the frequency decreases.

Therefore, the histogram is skewed to the right because there is less data on the right side. So, she is correct that is option D.

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Answer:

d

Step-by-step explanation:

Here, angles A is 23 degrees. What can we say about other angles B and C…. Help please

Answers

Answer:

Both are 157 degrees

Step-by-step explanation:

A and B form a linear pair, meaning together they should create 180 degrees. 180 - 23 = 157. Since B and C are vertical angles, they must both be the same. A vertical angle is when two angles are on opposite sides.

Answer:

Step-by-step explanation:

Linear pair: Two angles form linear pair if they are adjacent angles and their non common arms are opposite rays.

a +b = 180      {Linear pair}

23 + b = 180

       b = 180 - 23

b = 157°

c = b   {Vertically opposite angles are congruent}

c = 157°

Gobe weighs 53.6 kg. he wears shoes which weigh 450 gm and carries a school bag weighing 4.5 kg. if he stands on the scales in his shoes and carrying the school bag. what weight will be recorded?​

Answers

Answer:

58.55Kg

Step-by-step explanation:

450 in Kg is 0.45.

0.45 + 4.5 = 4.95. 4.95 + 53.6 = 58.55.

A quality control manager at a tortilla company wants to estimate the mean diameter of the tortillas
produced by a certain machine. The manager is deciding between a 90% confidence level and a 95%
confidence level. Compared to a 90% confidence interval, a 95% confidence interval will be,,

a. Narrower and the margin of error would increase
b. Wider and the margin of error would increase
c. Narrower and the margin of error would decrease
d. Wider and the margin of error would decrease

Answers

Answer:

C. Narrower and the margin of error would decrease

The required, option b (wider and the margin of error would increase) is the correct answer.

What is the margin of error?

In statistics, the margin of error (MOE) is the degree of uncertainty associated with a statistical estimate, usually an estimate of a population parameter based on a sample of data. It is the range of values above and below a sample statistic that is likely to contain the true population parameter with a certain level of confidence.

Compared to a 90% confidence interval, a 95% confidence interval will be wider and the margin of error would increase.

This is because a higher confidence level requires a larger range of possible values to be included in the interval, which in turn leads to a wider interval. With a higher confidence level, the z-score used to calculate the margin of error increases, resulting in a larger margin of error.

Therefore, option b (wider and the margin of error would increase) is the correct answer.

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Graph the line with the equation y=1/2x+5



Answers

Here it is

.,.,.,.,..,.,.,.

5/6-(2/3-4/9)= (5/6-2/3)-4 is this equal​

Answers

This equation is False.

5/6-(2/3-4/9) = 11/18

(5/6-2/3)-4 = -23/6

Showing two different answers, so no they are not equal.

HURRY PLEASE , I WILL GIVE BRAINLIEST FOR CORRECT ANWSER

Answers

Answer:

B.

Step-by-step explanation:

1) the given equation is provided in slope-interception form, then

2) the interseption is '-3', it means the point (0;-3) - the correct answer is either B or C;

3) the slope of the given line is more that 1 (3/2>1), it means the angle is [45°;90°], then the line of the answer B is satisfies this condition.*

4) finally, the correct answer is B.

* - if to substitute the point (2;0) then it will be true equality 0=0.

Please help when you it’s important

Answers

The area of the sandbox is 5 x 5 = 25 square feet.


the cost of the sand = 25 square feet x 1.47 = $36.75


Answer: $36.75

Answer:

36.75

Step-by-step explanation:

5*5=25 ft^2

(area)

25*1.47=36.75

sand cost

PLEASE HELP!!!!!!!!
How do I write these in Slope y-intercept form example: y=1/2x-5

7) 2x - y = 3
8) 2x+4y = 8
9) 3x-5y=10
10) 3x-1/2y=2

Answers

Answer:

The answers would be:
7) y=-0.5x+2
8) y=-0.5x+2
9) y=0.6x-2
10) y=6x-4

Step-by-step explanation:

What is the following quotient?

Answers

Answer:

B

Step-by-step explanation:

The second option is the answer

Hope this helps :)

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