Answer:
Statement (B)
Step-by-step explanation:
Which statement below about roots is false?
Let's arrange the statements by assigning option-letters a, b, c, d to them.
(A) Simplified radicals have a positive and a negative root.
This is true, as the root of any number is either a positive or a negative; especially if the rooting index is an even number like 2 or 4. For example, the square root (when the index is 2) of 9 is either +3 or -3. To check, find their squares. +3 x +3 = 9 and -3 x -3 = 9.
(B) A radicand is the symbol used when working with roots.
This statement is false, as the name for the symbol used in root operations is "radical symbol". A radicand is the number or expression whose roots are about to be found. It is the expression that lies under or inside the radical symbol!
(C) Exponents and Roots are inverses.
Exponents are the powers to which mathematical expressions are raised. Roots are the indexes by which mathematical expressions are divided. Exponents are hence the opposites or inverses of roots.
(D) Roots can be squared, cubed, quadrupled, or raised to higher powers.
Yes! The root of a mathematical expression or figure can be raised to any number or power, be it 2 (square), 3 (cube), 4 (quadruple), 5 (quintuple) or 100 (cent).
Write a system of equations to describe the situation below, solve using any method, and fill in the blanks.
Sally, an artist, plans to paint and sell some miniature paintings. She just bought some brushes for $12, and paint and canvas for each painting costs $77; she will sell each painting for $78. Once Sally sells a certain number of her paintings, she will be breaking even. How much will Sally have earned? How many paintings will that be?
Sally's expenses and receipts will both total $______ when she has sold ______of her paintings.
Please help I need an answer soon
Answer:
I think D
Step-by-step explanation:
I think mean is center, or the center of the data. Range is the spread of data, or how far it is spread.
The measure of two angles are (3x+50) and (4x - 10). What must be true
about the angles if x = 20? What is the sum of their measures?
Answer: The two angles add up to 180 so they are supplementary angles.
The sum of their measures is 180 degrees.
Step-by-step explanation:
Plug in given value for x.
x=20
(3x+50)=
(60+50)=110
110
(4x-10)=
80-10=70
70
There are several true things about these angles you can find from this information but I think you are looking for the answer at top.
3. If the rate of an investment is 5%, the time is 12 years and the principle is $500; which investment would be
worth the most?
a Simple Interest
b. Compounded Monthly
c. Compounded Weekdy
d. Compounded Continuously
Does anyone know this? I'll give the brainliest
what is the value of z so that -9 and 9 both are solutions of x^2+ z= 103?
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: z=22
Explanation:
9^2 + z = 103
81 + z = 103
103 - 81 = z
22 = z
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
~~Answer~~
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The answer you seek is z = 22. :3 Step by step explanation is best explained by the user above. Hope we helped! :D
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Considere un proceso industrial en el que se producen vigas de acero las cuales pueden tener defectos de dureza y peso. En el caso de un defecto en la dureza requiere de un estudio de laboratorio. Sin embargo, de procesos anteriores se sabe que 12% de las vigas no pasan la prueba de dureza, que 7% no pasan la prueba de pesado y que sólo 0.5% no pasan ninguna de las dos pruebas.
Si en el proceso se elige una viga al azar y una medición rápida identifica que no pasa la prueba de dureza, ¿cuál es la probabilidad de que el pesado no sea el correcto?
Step-by-step explanation:
PRUEBA DE HIPÓTESIS” CONTROL ESTADÍSTICO DE PROCESOS “PRUEBA DE HIPÓTESIS” IV – “A”
2. 2 “PRUEBA DE HIPÓTESIS” "AÑO DE LA PROMOCIÓN DE LA INDUSTRIA RESPONSABLE Y DEL COMPROMISO CLIMÁTICO" UNIVERSIDAD NACIONAL “SAN LUIS GONZAGA” DE ICA FACULTAD DE ADMINISTRACIÓN “PRUEBA DE HIPÓTESIS” Curso : CONTROL ESTADÍSTICO DE PROCESOS Doctor : Dr. ORLANDO GABRIEL HERNÁNDEZ Año : IV - “A” Turno : MAÑANA Autores : CARRILLO MAMANI, GERALD FLORES JAUJE, LUIS HUARIPAUCAR GAMBOA, SONIA OCHOA SUAREZ, GIUSEPI 2014
3. 3 “PRUEBA DE HIPÓTESIS” INTRODUCCIÓN Es evidente que las distribuciones muestrales, vistas en el capítulo anterior, basadas en la teoría de la distribución normal, desarrollan un papel de gran importancia en la inferencia estadística. La inferencia estadística comprende dos partes principales, a saber: la estimación de parámetros y la prueba o docimasia de hipótesis. En este capítulo estudiaremos la segunda de ellas, con el fin de desarrollar métodos y observar su aplicación a problemas corrientes de la vida diaria. La inferencia estadística está basada en el supuesto de tomar muchas muestras, todas con igual probabilidad de ser seleccionadas y a través de una de ellas sabremos algo acerca de la población, mediante el cálculo de estimadores, que nos permitan hacer aseveraciones, incorrectas algunas veces, estableciéndose la probabilidad de error. Este método se basa en la aplicación de técnicas de muestreo, para lo cual se requiere de un buen diseño, además de la aplicación de métodos aleatorios de selección, cuando las probabilidades son iguales para cada elemento de una población. En algunos casos no requieren ser iguales, siempre que se conozcan y sean diferentes a cero. CONTENIDO Conceptos generales, usos y procedimientos de aplicación. Pruebas de hipótesis con aplicaciones en distribuciones de: Medias, Proporciones. Teoría de las muestras pequeñas. Distribución “t” de
The question is in the picture above^
145/250 = ??
Giving brainliest
Answer:
exact form= 29/50
decimal form= 0.58
percent form= 58%
Step-by-step explanation:
Answer:
58%
Step-by-step explanation:
The graph shows the volume of ice cubes versus temperature in degrees
Celsius. Whiclestatement is false?
A. The data show a negative linear relationship.
B. Volume is the explanatory variable.
C. Temperature is strongly correlated to the volume of ice cubes.
D. The correlation coefficient is close to -1.
Answer:
A. The data show a negative linear relationship.
Step-by-step explanation:
According to the attached image as we can see that the temperature is in Y axis and volume of ice cubes is in X axis
So the following statements considered to be true
a. The volume represents the explanatory variable
b. Temperature would be strongly correlated to the ice cubes volume
c. As the correlation coefficient is near to -1
But it does not show the negative linear relationship
Therefore the correct option is a.
In the accompanying diagram of circle O, mAB = 64 and
m
What is the measure of CD?
A 104°
B 80°
C 52°
D 40°
Answer:
D 40°
Step-by-step explanation:
52= X + 64 /2
*2. *2
104 = X + 64
-64 -64
40 =X
How many solutions does a triangle with side lengths a = 4, A = 68º , and b =
10 have?
Use a numeral for your answer.
Answer:
You can't make a triangle with those solutions.
Answer:
0
Step-by-step explanation:
A trianlge cannot be formed
What is the value of x in the equation −8 + x = −2? (1 point)
−10
−6
6
10
Hep please will give brainiest and other!!!
Write an equation of the line that passes through the points (-3, -9) and (5, -9).
y = -9
Ok so to write the equation of the line you will need the slope and y-intercept. Since we are given two-point we can easily find the slope by using this equation for slope formula:
[tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
So now that we have our equation we can just plug in the numbers:
[tex]\frac{(-9)-(-9)}{5-(-3)}[/tex]
After subtracting you should get:
0/8
Since zero is in the numerator and you can't divide zero by anything, the slope is 0. We still need the y-intercept for the equation however since the slope is 0 there is no need to put anything else.
Then to find the y-intercept all you have to do is plug in one of the coordinatines into the slope equation to solve, for example, using the point (5,-9):
[tex](-9) = 5(0) + b[/tex]
B is the variable for the y-intercept. Also notice how I put 0 as our slope into the equation. Now all you have to do is solve for b. Which you would get b = -9. Since you have your slope and your y-intercept now you just write out your equatoin for the line which is:
y = 0x - 9
**Just write it as
y = -9
Answer:
Y = -9
Step-by-step explanation:
You're welcome and have a nice day
Can someone help me please brainliest for the correct answer
ok, So we know the length of 4/6 of the sides.....the ones we know are:
-4ft
-3ft
-9ft
-10ft
now to find the two missing sides.......we can see that one side is 5 because the other half is 4 ....which we already counted,.... (I'm talking about the unmeasured side over 9ft). Now to find the second...(the one closer to 10) since the already counted side is three and it's over 10 it has to be 7. so our missing ones are:
-7ft
-5ft
Now to add them together:
4+3+9+10+7+5=38
Lastly: REMEMBER TO ADD THE UNIT OF MEASUREMENT!!! Feet!!
That makes our answer 38ft!!
This means answer D or the last one is correct!!
HOPE I HELPED!!! HAVE AN AMAZING DAY/NIGHT!!!! PLEASE GIVE ME BRAINLIEST IF I HELPED YOU!!!
Answer:
38 feet.
Step-by-step explanation:
The length of the unmarked vertical side is 10 - 3 = 7 feet.
The length of the unmarked horizontal side is = 9 - 4 = 5 feet.
The perimeter = sum of the lengths of the sides
= 10 + 4 + 7 + 5 + 3 + 9
= 38 feet.
I need help with this question, I already know the answer but I need someone to explain step by step
Question: 3x-y=5
Answer: y=3x-5
Answer:
y=3x-5
Step-by-step explanation:
so step by step would go like this
1) add Y to the opposite side
3x=Y+5
2)Subtract 5 from the side with Y
y=3x-5
Which of the following is the correct value of x?
A. 62
B. 31
C. 118
D. 56
Answer:
31°
Step-by-step explanation:
The sum of interior angles in a triangle is equal to 180° we can calculate the measure of missing angles using this information
The given triangles are isosceles I have drawed the on the shape, check out the attachment olease.
Can someone help me on this plzzz
15 POINTS NEED ASAP PLS!!!!
The table shows the rates for sending text messages. Are the rates proportional??
Explain.
I need this quick pls answer thanks
Answer:
Need a pic to answer your question
1.
The equation of the line having x-intercept -3/2, y-intercept 3/4 is
1) 3x + 2y - 6 = 0
2) 2x - 4y + 3 = 0
3) 2x + 3y - 5 = 0
4) 4x - 3y - 12 = 0
O
1)
2)
O
3)
O
4)
Answer:
2nd option
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- [tex]\frac{3}{2}[/tex], 0) and (x₂, y₂ ) = (0, [tex]\frac{3}{4}[/tex] )
m = [tex]\frac{\frac{3}{4}-0 }{0+\frac{3}{2} }[/tex] = [tex]\frac{\frac{3}{4} }{\frac{3}{2} }[/tex] = [tex]\frac{1}{2}[/tex] and c = [tex]\frac{3}{4}[/tex] , then
y = [tex]\frac{1}{2}[/tex] x + [tex]\frac{3}{4}[/tex] ( multiply through by 4 to clear the fractions )
4y = 2x + 3 ( subtract 4y from both sides )
0 = 2x - 4y + 3 , that is
2x - 4y + 3 = 0 ← equation of line
SHOW YOUR WORK
9 ÷ 4.5 = ?
Answer: 2
Step-by-step explanation:
Change the divisor 4.5 to a whole number by moving the decimal point 1 places to the right. Then move the decimal point in the dividend the same, 1 places to the right.
We then have the equations:
90 ÷ 45 = 2
and therefore:
9 ÷ 4.5 = 2
F r e e points!!!!!!!!!!!!!!!!!
Answer:
gang
Step-by-step explanation:
Answer:
Thanks so much!!
Step-by-step explanation:
m∠A = 50°, c = 25, a = 19, m∠C=?
Using the Sine Law
Answer:
m<C can not be computed
Step-by-step explanation:
m∠A = 50°, c = 25, a = 19, m∠C=?
Using the Sine Law
a/sin m<A = c/sin m<C
Substitute the given values
19/sin50 = 25/sinC
19sinC = 25sin50
19sinC = 19.1511
sinC = 19.1511/19
sinC = 1.0079
C = arcsin1.0079
Hence m<C can not be computed
I really need help!!!!! Correct answers only, look at the screenshot
Can someone please help me with math.
Answer:
6. B
7. D
Step-by-step explanation:
[tex]\sqrt{4}[/tex] = 2
Point A Before: ( 1 , 3 )
1 - 4 = -3
3 - 2 = 1
( -3 , 1 )
hope this helps
Arc JHL represents what part of the circle?
Explanation is in a file
bit.[tex]^{}[/tex]ly/3a8Nt8n
Which of these correctly rearranges the terms in this polynomial so like terms are next to each other
Question is not complete, so i have attached it.
Answer:
B: -2x² - 6x² - 6x + 3x + 3 + 2
Step-by-step explanation:
From the image attached, the given polynomial is;
3 - 6x - 2x² + 3x - 6x² + 2
For like terms to be next to each other, we have to rearrange it as follows;
-2x² - 6x² - 6x + 3x + 3 + 2
Like terms are x² and x, thus they are now arranged next to each other.
The only option that corresponds to our answer is option B
Plz help me with this question
Answer: it’s 544
Step-by-step explanation: if you divide 128/6 it will give you have much money he would make with one so it would be 8 and then if you multiply 68 times 8 you get 544
Answer: 672
Step-by-step explanation:
you already know that he/she washed 16 car for 128. so you divide 16 into 128 which is $8 ,then you multiply 8 times 64 which is 544 add 128+544=675
672 dollars
WHICH OF THE FOLLOWING ANGLES CANNOT BE CONSTRUCTED USING
RULER AND COMPASSES?
(a) (b) 85 (c) 15 (d) 135
Please help having a hard time understanding locate the volume of the cone.
The exterior angles of a pentagon are (m+5)°, (2m+3)°, (3m+2)°, (4m+1)° and (5m+4)° respectively. Find the measure of each angle.
Answer:
Step-by-step explanation:
Sum of exterior angles of any polygon =360°
Sum of exterior angles of polygon = 360°
m + 5 + 2m + 3 + 3m + 2 + 4m + 1 + 5m + 4 = 360
m + 2m + 3m + 4m + 5m + 5 + 3 + 2 + 1 + 4 = 360 {Combine like terms}
15m + 15 = 360 {Subtract 15 from both sides}
15m = 360 - 15
15m = 345 {Divide both sides by 15}
m = 345/15
m = 23
m + 5 = 23 + 5 = 28°
2m + 3 = 2*23 + 3 = 46 + 3 = 49°
3m + 2 = 3*23 + 2 = 69 + 2 = 71°
4m + 1 = 4*23 + 1 = 92 + 1 = 93°
5m + 4 = 5*23 + 4 = 115 + 4 = 119°
Answer:
see explanation
Step-by-step explanation:
The sum of the exterior angles of a polygon = 360°
Sum the angles and equate to 360
m + 5 + 2m + 3 + 3m + 2 + 4m + 1 + 5m + 4 = 360, that is
15m + 15 = 360 ( subtract 15 from both sides )
15m = 345 ( divide both sides by 15 )
m = 23
Then
m + 5 = 23 + 5 = 28°
2m + 3 = 2(23) + 3 = 46 + 3 = 49°
3m + 2 = 3(23) + 2 = 69 + 2 = 71°
4m + 1 = 4(23) + 1 = 92 + 1 = 93°
5m + 4 = 5(23) + 4 = 115 + 4 = 119°