Between which two integers does square root of 178 lie? A. 13 and 14 B. 17 and 18 C. 88 and 90 D. 177 and 179

QUESTION POSTED AT 18/01/2020 - 07:27 AM

Answered by admin AT 18/01/2020 - 07:27 AM

A.13 and 14 because 13 squared is 169 and 14 squared is 196.
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Related questions

14.A company employee has to print 3145 pages, and the company's printer prints 85 pages per minute. The function f(x)=−85x+3145f(x)=−85x+3145 represents the number of unprinted pages x minutes after the printing begins. What is the practical domain of function f? all whole numbers from 0 to 37 all real numbers from 0 to 37 all real numbers from 0 to 3145 all multiples of 85 between 0 and 3145

F(x) = -85x + 3145...the domain is going to be the x value while the range is the f(x) value.

answer is going to be all whole numbers from 0 to 37

notice if u sub in 37 for x.....
f(37) = -85(37) + 3145
f(37) = - 3145 + 3145
f(37) = 0...that means after 37 minutes, there are no un-printed pages...all the pages have been printed. So ur answer would be greater then 0, but less then or equal to 37.....and they have to be whole numbers.....they cant be all real number because that includes irrational numbers.

ANSWERED AT 16/02/2020 - 07:04 PM


QUESTION POSTED AT 16/02/2020 - 07:04 PM

Which is the correct description of the transformation of triangle JKL to triangle JꞌKꞌLꞌ? A.a 90° clockwise rotation around point A of pre-image JKL B.a 90° counterclockwise rotation around point A of pre-image JKL C.a 180° clockwise rotation around point A of pre-image JKL D.a reflection across point A of pre-image JKL

"A 90° clockwise rotation around point A of pre-image JKL" is the one among the following choices given in the question that is the correct description of the transformation of triangle JKL to triangle JꞌKꞌLꞌ. The correct option among all the options that are given in the question is the first option or option "A".

ANSWERED AT 16/02/2020 - 06:45 PM


QUESTION POSTED AT 16/02/2020 - 06:45 PM

What is the conjugate of the square root of -15 ? ...?

The answer to the problem is as follows:


The square root of -15 is equal to i*sqrt(15). Therefore, the conjugate of this complex number is -i*sqrt(15).


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!



ANSWERED AT 16/02/2020 - 06:43 PM


QUESTION POSTED AT 16/02/2020 - 06:43 PM

Which of the following represents the set of possible rational roots for the polynomial shown below? 2x³+5x²-8x-10=0 a. {±2/5, ±1/2, ±1, ±2, ±2/5, ±1/5, ±1/10} b. {±1/2, ±1, ±2, ±5/2, ±5, ±10} c. {±1, ±2, ±4, ±5, ±10, ±20} d. {1/2, 1, 2, 5/2, 4, 5, 10, 20} ...?

Answer:

Option b is correct

Step-by-step explanation:

Given the polynomial

2x^3+5x^2-8x-10=0

we have to find the set of possible rational roots for the polynomial.

Rational root theorem states that if P(x)  has any rational roots then they must be of form

\pm{\frac{\text{Factor of }a_0}{\text{factors of }a_n}

Here P(x)=2x^3+5x^2-8x-10

Factors of 10=1, 2, 5, 10

Factors of 2=1, 2

Possible rational roots are

\{\pm1, \pm\frac{1}{2}, \pm2, \pm\frac{5}{1}, \pm\frac{5}{2}, \pm 10\}

Option b is correct

ANSWERED AT 16/02/2020 - 06:41 PM


QUESTION POSTED AT 16/02/2020 - 06:41 PM

Solve. x2 + 6x = 10 -3 ± sqrt 10 -3 ± sqrt 7 -3 ± sqrt 19 -3 ± sqrt 13 ...?

We can solve the given equation above by doing the completing the square method. We do as follows:

x^2 + 6x = 10
x^2 + 6x + 9 = 10 +9
(x+3)^2 = 19
√(x+3)^2 = √19
x + 3 = √19

Therefore, the correct answer from the choices listed above is the third option, -3 ± sqrt 19. Hope this answers the question. Have a nice day.

ANSWERED AT 16/02/2020 - 06:40 PM


QUESTION POSTED AT 16/02/2020 - 06:40 PM

Is the line through points P(–8, –10) and Q(–5, –12) perpendicular to the line through points R(9, –6) and S(17, –5)? Explain. ...?

Answer: No, the line through points P(–8, –10) and Q(–5, –12) is not perpendicular to the line through points R(9, –6) and S(17, –5).

Step-by-step explanation:

Two lines are called perpendicular to each other if the product of their slope is -1.

Since, the slope of a line having end points (x_1,y_1) and (x_2,y_2) is,

m=\frac{y_2-y_1}{x_2-x_1}

Thus, the slope of line Joining points P(–8, –10) and Q(–5, –12),

m_1=\frac{-12+10}{-5+8}=\frac{-2}{3}=-\frac{2}{3}

While, The slope of line Joining points R(9, –6) and S(17, –5),

m_2=\frac{-5+6}{17-9}=\frac{1}{8}

Since,

m_1\times m_2=-\frac{2}{3}\times \frac{1}{8}=-\frac{1}{12}\neq -1

Thus, the line through points P(–8, –10) and Q(–5, –12) is not perpendicular to the line through points R(9, –6) and S(17, –5).

ANSWERED AT 16/02/2020 - 06:35 PM


QUESTION POSTED AT 16/02/2020 - 06:35 PM

Which sequence is not equivalent to the others? (1) a reflection across the y-axis, followed by a reflection across the x-axis, and then a 90° clockwise rotation about the origin (2)a 90° clockwise rotation about the origin and then a 180° rotation about the origin (3) a reflection across the x-axis, followed by a 90° counterclockwise rotation about the origin, and then a reflection across the x-axis (4) a 90° counterclockwise rotation about the origin

Answer with explanation:

Consider the geometrical shape , which is in the first Quadrant

Option 1:

  A reflection across the y-axis, followed by a reflection across the x-axis, and then a 90° clockwise rotation about the origin .

Explanation:  

  When we reflect the shape across y axis , it will reach in second Quadrant, then by reflection across the x-axis,takes it to the third Quadrant,then a 90° clockwise rotation about the origin takes it to the second Quadrant.

Option 2:

a 90° clockwise rotation about the origin and then a 180° rotation about the origin

Explanation:  

90° clockwise rotation about the origin, takes the shape to fourth Quadrant,and then  a 180° rotation about the origin takes the shape to Second Quadrant.

Option 3

a reflection across the x-axis, followed by a 90° counterclockwise rotation about the origin, and then a reflection across the x-axis

Explanation:

a reflection across the x-axis, takes the shape in fourth Quadrant,then a 90° counterclockwise rotation about the origin takes the shape in first Quadrant, and again then a reflection across x axis ,takes the shape again in Fourth Quadrant.

Option 4

a 90° counterclockwise rotation about the origin

Explanation:

a 90° counterclockwise rotation about the origin takes the shape in Second Quadrant.

Option 3 That is , Statement 3,⇒ a reflection across the x-axis, followed by a 90° counterclockwise rotation about the origin, and then a reflection across the x-axis, is not equivalent to the other statement.

ANSWERED AT 16/02/2020 - 06:07 PM


QUESTION POSTED AT 16/02/2020 - 06:07 PM

Can fractions still be considered natural, whole, integers, rational, irrational, or real numbers?

Fractions are numbers which can be represented in the form p/q, where p and q are WHOLE NUMBERS and q is not zero Rational numbers are numbers which can be represented in the form p/q where p and q are INTEGERS and q is not zero So your saying " all rational numbers are all numbers that can be represented as a fraction." is wrong....... all fractions are rational numbers but NOT ALL rational numbers are fractions..

ANSWERED AT 16/02/2020 - 05:35 PM


QUESTION POSTED AT 16/02/2020 - 05:35 PM

Factor the expression: x3 - 2x2 - 9x + 18 ...?

x^3 - 2x^2 - 9x + 18
\\x^2(x-2)-9(x-2)
\\(x-2)(x^2-9)
\\(x-2)(x^2-3^2)
\\(x-2)(x-3)(x+3)

ANSWERED AT 16/02/2020 - 05:33 PM


QUESTION POSTED AT 16/02/2020 - 05:33 PM

When a number is raised to the 6th power, it equals 90. What is this number, and write it using the root symbol ...?

6√90 = 2.11693286302546
So, this number to the power of six equals 90. 
2.11693286302546^6 = 90

The correct answer is 2.11693286302546. 

ANSWERED AT 16/02/2020 - 05:28 PM


QUESTION POSTED AT 16/02/2020 - 05:28 PM

When working with the square root of a number, when would you have only a positive answer and when would you have both a positive and negative answer?

Lets make it clear: You would have a positive answer when the value you are looking for has to be a positive number. On the other hand you would have a positive and a negative answer when you take the square root of something that doesn't have to be positive. it could be either because when a negative number is squared it becomes positive and when a positive number is squared it stays positive as well.

ANSWERED AT 16/02/2020 - 05:24 PM


QUESTION POSTED AT 16/02/2020 - 05:24 PM

If x = 4 calculate the value of x squared 2x

x² × 2x = 16 × 8 = 128

ANSWERED AT 16/02/2020 - 04:51 PM


QUESTION POSTED AT 16/02/2020 - 04:51 PM

What is the square root of 97? for my younger friend

Square root of 97 is originally 9.848857802 when you punch it in a calculator , so you have to move the decimal two loops to the right which gives you 9.84 & that's the square root of 97 :)

ANSWERED AT 16/02/2020 - 04:39 PM


QUESTION POSTED AT 16/02/2020 - 04:39 PM

A chemistry student needs to make 60 liters of a 30% alcohol solution. He has a 20% alcohol solution and a 40% alcohol solution in the lab. How many liters of each strength does he need to mix together *The system of equations I did was: a+b=60 & .2a+.4b=18. I may be wrong but i seriously need help

Hi i am sorry i am not sure what to do here i mainly answer questions in biology and maths so if u have any questions related to that subject u can ask me but chemsitry i am not really good at sorry xx

ANSWERED AT 16/02/2020 - 04:20 PM


QUESTION POSTED AT 16/02/2020 - 04:20 PM

find a ratio equivalent to each ratio ` then use the ratios to write a proportion * 1) 22 / 30 2) 7 / 9 3) 18 / 54 4) 10 / 17

22/30 = 11/15
7/9 = 14/18
18/54 = 1/3
10/17 = 20/34

A proportion can be set up by using the general formula:
a/b = c/d
ad = bc

ANSWERED AT 16/02/2020 - 04:10 PM


QUESTION POSTED AT 16/02/2020 - 04:10 PM

Emily has 3 yellow, 8 green, 5 red, and 14 blue ankle bracelets in a bag. If Emily randomly selects an ankle bracelet out of the bag, what is the probability it will be green or blue?

The total number of bracelets she has are 

3+8+5+14 = 30 

so, my available choices are 8 from green and 14 from blue
so total = 22
so the answer is = 22/30 = 11/15
 


ANSWERED AT 16/02/2020 - 04:06 PM


QUESTION POSTED AT 16/02/2020 - 04:06 PM

AWNSER FOR 99 POINTS!What is the volume of the pyramid? A. 2470 cm3 B. 4940 cm3 C. 7410 cm3 D. 14,820 cm3

Volume of pyramid = 1/3 x base x height so you could substitute the numbers in . i dont know the numbers so


ANSWERED AT 16/02/2020 - 03:53 PM


QUESTION POSTED AT 16/02/2020 - 03:53 PM

What is the substitution for 5x-2y=14, 2x-y=5

Okay so
5x-2y=14
2y=5x-14
y=(5x-14)/2
2x-y=5
y=2x-5
2(2x-5)=5x-14
4x-10=5x-14
x=4

y=(5[4]-14)/2
y=(20-14)/2
y=6/2
y=3

Answer: x=4, y=3

ANSWERED AT 16/02/2020 - 05:58 AM


QUESTION POSTED AT 16/02/2020 - 05:58 AM

1) 9.5 + 11/15= ? 2) 34.6 - 13 3/5= ? 3) 15.99 x 12/15= ? 4) 17/8 - 1.2= ? 5) 5/7 + 2.99 x 12/19 =?

1)10.2
2)26.8
3)12.8
4)0.925
5)2.6

ANSWERED AT 16/02/2020 - 05:56 AM


QUESTION POSTED AT 16/02/2020 - 05:56 AM

What is t-16=17???????

The answer to the letter t is 33 :) 

Hope it helped :0)

ANSWERED AT 16/02/2020 - 05:34 AM


QUESTION POSTED AT 16/02/2020 - 05:34 AM

How would you write the expression the product 18 and a number b?

Subtraction: 18 - b
Addition: 18 + b
Multiplication: 18b, or 18 x b
Division: 18 divided (My keyboard doesn't have a division sign?) by b
Hope this helped.

ANSWERED AT 16/02/2020 - 05:16 AM


QUESTION POSTED AT 16/02/2020 - 05:16 AM

A, B, C, and D have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. Which sentence about the points is true?A, B, C, and D lie on the same line. and are perpendicular lines. and are parallel lines. and are intersecting lines but are not perpendicular. and are parallel lines.

Answer with explanation:

The Coordinates of point ,  A, B, C, and D are (-8, 1), (-2, 4), (-3, -1), and (-6, 5).

Slope between two points is given by

             (x_{1},y_{1}),\text{and},(x_{2},y_{2}) \text{is},=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

\text{Slope of AB}=\frac{4-1}{-2+8}\\\\=\frac{3}{6}=\frac{1}{2}\\\\\text{Slope of CB}=\frac{4+1}{-2+3}\\\\=\frac{5}{1}=5\\\\\text{Slope of CD}=\frac{5+1}{-6+3}\\\\=\frac{6}{-3}=-2\\\\\text{Slope of AD}=\frac{5-1}{-6+8}\\\\=\frac{4}{2}=2\\\\\text{Slope of DB}=\frac{4-5}{-2+6}\\\\=\frac{-1}{4}\\\\\text{Slope of AC}=\frac{1+1}{-8+3}\\\\=\frac{2}{5}

Coming at the Options

 1. Option 1 , is not true, because points, A, B, C and D are not collinear.

2. Slope of AB × Slope of CD

              =\frac{1}{2} \times -2\\\\-1

So, lines AB and CD are Perpendicular.

3. None, of the lines are parallel, as the slopes of two distinct lines are not equal.

4. None of the lines are parallel, So, all of the lines, AB, BC, CD, DA,AC, and B D are Intersecting.      

ANSWERED AT 16/02/2020 - 04:42 AM


QUESTION POSTED AT 16/02/2020 - 04:42 AM

Find the integers of 181

If you mean its factors, it's a prime number, so the only integers that it factors into are -1, 1, -181, and itself.

ANSWERED AT 16/02/2020 - 02:15 AM


QUESTION POSTED AT 16/02/2020 - 02:15 AM

17 tens in expanded form

Answer:

170=100+70+0

Step-by-step explanation:

We are asked to write 17 tens in expanded form.

First of all, we will convert 17 tens into numbers. 17 tens would be 17\times 10=170.

Now, we will write 170 in expanded form.

We can see that 170 has 1 hundred, 7 tens and 0 ones. We can expand it as:

170=100+70+0.

Therefore, the expanded form of 17 tens would be 170=100+70+0.

ANSWERED AT 16/02/2020 - 02:11 AM


QUESTION POSTED AT 16/02/2020 - 02:11 AM

Helpful steps please, A coil of wire rotating in a magnetic field induces a voltage given by e = 20 sin ((piT/4)-(pi/2)). where t is time in seconds. Find the smallest positive time to produce a voltage of 10 square root 3.

Sin( pi /4 * t - pi/2 ) = sqrt(3)/2
we know that when theta = Pi/3, sin (Pi/3) = sqrt(3)/2
 so solve Pi/3 = Pi/4 * t - Pi/2
 Pi/2 + Pi/3 = Pi/4 * t

I am not really sure. Sorry :(

ANSWERED AT 16/02/2020 - 02:10 AM


QUESTION POSTED AT 16/02/2020 - 02:10 AM

14 is 40% of what number

The answer is 14 is 40% of 35

ANSWERED AT 16/02/2020 - 02:05 AM


QUESTION POSTED AT 16/02/2020 - 02:05 AM

-(14-2y) +3y+26 how do i find y

Y is behind 2 its in plain sight   

ANSWERED AT 16/02/2020 - 02:04 AM


QUESTION POSTED AT 16/02/2020 - 02:04 AM

Solve. Draw and label a tape diagram to subtract 10, 20, 30, 40, etc. 17 - 9 = 18 - 10 =

ㄥ刀K 山卄丹匕 匕卄工S 工S 工匕 S∪ㄗㄗ口Sモ 匕口 乃モ 工れ 匕卄モ 爪丹匕卄 Sモ匚匕工口れ

ANSWERED AT 16/02/2020 - 01:58 AM


QUESTION POSTED AT 16/02/2020 - 01:58 AM