Answer:
F=C+32.
128=C+32.
C=128-32.
96°C
Evaluate the following,giving your answers in their lowest terms:
a) 1/8_1/8
b) 2/3_1/6
c) 3/18_1/3
d) 3/1/8_1/1/4
e) 1/1/8_4/1/4
f)(9/10_9/100)_1/100
Answer:
the isn't enough information to answer
El promedio trimestral de Víctor en Matemática es 5,5. Durante el trimestre tuvo 4 calificaciones en esta asignatura: dos notas 6,0, una nota 4,8 y otra que no recuerda. ¿cuál es la nota que Víctor no recuerda?
Answer:
La nota que Víctor no recuerda es 5.2
Step-by-step explanation:
La media es el valor promedio de un conjunto de datos numéricos y es también llamada promedio o media aritmética.
Su cálculo se obtiene al sumar todos los datos disponibles y dividir el resultado por el número total de esos datos:
[tex]Promedio=\frac{x_{1} +x_{2} +x_{3}+...+x_{n} }{N}[/tex]
donde N el número total de observaciones.
En este caso:
[tex]Promedio=\frac{x_{1} +x_{2} +x_{3}+x_{4} }{4}[/tex]
Siendo:
Promedio= 5.5x₁=6x₂=6x₃=4.8x₄=?y reemplazando:
[tex]5.5=\frac{6 +6 +4.8+x_{4} }{4}[/tex]
Se obtiene:
5.5*4=6+6+4.8 +x₄
22=6+6+4.8 +x₄
22-6-6-4.8=x₄
x₄=5.2
La nota que Víctor no recuerda es 5.2
Skill Sumi
A. 5= -2(x- 1)
B. 5 = -2x+2
1) How can we get Equation B from Equation A ?
Choose 1 answer:
A)Rewrite one side (or both by combining like terms
B)Rewrite one side or both using the distributive property
C)Multiply divide both sides by the same non-zero constant
D)Multiply divide both sides by the same variable expression
Answer:
[tex]\Large \boxed{\mathrm{B}}[/tex]
Step-by-step explanation:
[tex]\sf 5 = -2(x - 1)[/tex]
Applying the distributive property.
We distribute the -2 to the terms in the brackets on the right side of the equation to get Equation B.
[tex]\sf 5 = -2(x) -2(-1)[/tex]
[tex]\sf 5 = -2x + 2[/tex]
To get Equation B from Equation A, we rewrite one side or both using the distributive property.
In an examination, a candidate has to score 40% marks to pass. Anil scores 22 and failed by 8 marks. What is the full marks?
Answer:
75
Step-by-step explanation:
Let full marks be x
Then pass marks is 40% of x which is 0.4x
As per given, we have
22= 0.4x - 8
Solving for x
0.4x = 30
x = 30/0.4
x = 75
So full marks is 75
1. Given the points (-2,4) and (4, -2), find the midpoint between these points.
Answer:
(1,1)
Step-by-step explanation:
M=(x1+x2 / 2 , y1+y2 / 2)
M=(-2+4 / 2 , 4+ -2 / 2)
M=(2 / 2 , 2 / 2)
M=(1,1)
What mathematical property is this? 14xy = 14yx
i need help on trying to solve this i’m stuck
Answer:
none of the above
Step-by-step explanation:
Angel saw an internet pop-up advertisement for an investment that doubles your money every year. If angel invests the $20 her grandmother gave her for her birthday, how much will she save in various years?
-50 = -5x - 3(5x + 15)
Answer:
x =1/4Step-by-step explanation:
[tex]-50 = -5x - 3(5x + 15)\\\\-5x-3\left(5x+15\right)=-50\\\\\mathrm{Expand}\:-3\left(5x+15\right):\quad -15x-45\\-5x-15x-45=-50\\\\\mathrm{Add\:similar\:elements:}\:-5x-15x=-20x\\-20x-45=-50\\\\\mathrm{Add\:}45\mathrm{\:to\:both\:sides}\\-20x-45+45=-50+45\\\\Simplify\\-20x=-5\\\\\mathrm{Divide\:both\:sides\:by\:}-20\\\frac{-20x}{-20}=\frac{-5}{-20}\\\\Simplify\\x=\frac{1}{4}[/tex]
Answer:
[tex]x = \frac{1}{4}[/tex]
Step-by-step explanation:
[tex]-50 = -5x - 3(5x + 15)[/tex]
Use -3 to open the bracket
[tex]-3(5x +15)\\\\= -15x -45\\\\ -50 = -5x-15x -45[/tex]
Collect like terms
[tex]-50 +45 =-5x -15x[/tex]
Simplify
[tex]-5 = -20x[/tex]
Divide both sides of the equation by -20
[tex]\frac{-5}{-20} = \frac{-20x}{-20} \\\\1/4 =x\\\\x = \frac{1}{4}[/tex]
What is the absolute value of -4-9t
Answer:
−9t−4
Step-by-step explanation:
Given f(x)=x2−2x−2, completing the square to solve for the function's zeros yields which of the following? A. (x−1)2=−2 B. (x−2)2=4 C. (x−2)2=2 D. (x−1)2=3
Answer:
(x-1)² = 3
Step-by-step explanation:
Given f(x)=x²−2x−2
Completing x²−2x−2 = 0 to square
x²−2x − 2=0x²−2x + 1 - 3 =0(x - 1)² - 3 = 0(x - 1)² = 3Correct choice is D
how do you add and subtract integers?
Answer: To add integers having the same sign, keep the same sign and add the absolute value of each number. To add integers with different signs, keep the sign of the number with the largest absolute value and subtract the smallest absolute value from the largest. Subtract an integer by adding its opposite.
Idk sooo please help
Answer:
20 points
Step-by-step explanation:
Points:
21, 13, 14 and x for the last gameAverage:
(21+13+14+x) / 4 = 1748 + x = 4*1748 + x = 68x = 68 - 48x = 20They must score 20 points
solve for a a/3+4=6
Answer:
a = 6
Step-by-step explanation:
a / 3 + 4 = 6
a / 3 = 2 (Subtract 4)
a = 6 (Multiply by 3)
Please help me with hw
Answer:
4. 7 hours 6. 8.57
Step-by-step explanation:
Step-by-step explanation:
Since, Carlos completes the work in 5 hours.
So, in one hour she will do [tex] =\frac{1}{5}[/tex] part
Since, Jenny completes the work in 9 hours.
So, in one hour she will do [tex] =\frac{1}{9}[/tex] part
(Carlos + Jenny)'s one hour work together
[tex] =\frac{1}{5}+\frac{1}{9}\\
= \frac{9+5}{5\times 9}\\
= \frac{14}{45}\\[/tex]
Total time taken by Carlos and Jenny together [tex] =\frac{45}{14}= 3\frac{3}{14} \: hours[/tex]
HELP : The equation r = 3c + 5 represents the values shown in the table below. c 6 8 12 18 r 23 29 ? 59 What is the missing value in the table? 12 35 41 44
Answer:
answer is 41
Step-by-step explanation:
subscribe to itzz sneaky
:the anser is
41
i just did it
Mary ears an hourly wage of $13 plus a $90
bonus. If Mary's total paycheck shows she
received $597, how many hours did she work?
What is the answer to (-9) - 16 =
Answer: -25
Step-by-step explanation:
-9 - 16 = -25
-9-16 is the same as -9 + -16 which gives you -25
25-2x=16+x
Show work please
Answer:
x = 3
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
−2x+25=x+16
Step 2: Subtract x from both sides.
−3x+25=16
Step 3: Subtract 25 from both sides.
−3x=−9
Step 4: Divide both sides by -3
x=3
Solve for x. 5x+23 = 2(x-5) *
Please answer ASAP
Answer:
[tex] \boxed{ \bold{ \huge{\boxed{ \sf{x = - 11}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{5x + 23 = 2(x - 5)}[/tex]
Distribute 2 through the parentheses
⇒[tex] \sf{5x + 23 = 2x - 10}[/tex]
Move 2x to left hand side and change it's sign
⇒[tex] \sf{5x - 2x + 23 = - 10}[/tex]
Move 23 to right hand side and change it's sign
⇒[tex] \sf{5x - 2x = - 10 - 23}[/tex]
Collect like terms
⇒[tex] \sf{3x = - 10 - 23}[/tex]
Calculate
⇒[tex] \sf{3x = - 33}[/tex]
Divide both sides of the equation by 3
⇒[tex] \sf{ \frac{3x}{3} = \frac{ - 33}{3} }[/tex]
Calculate
⇒[tex] \sf{x = - 11}[/tex]
Hope I helped!
Best regards!!
A rectangle has the following vertices. Find the area of the rectangle. (-8, – 6), (4,2), (4, -6), (-8, 2) (1 point)
O 48 square units
0 144 square units
0 38 square units
O 96 square units
Answer:
D. 96
Step-by-step explanation:
which polynomials are in standard form
Answer:
B) -2t^2+3t+5
and
C) 4t-7
True or False: A comparison of two different quantities by division - with different
kinds of units is called a ratio *
Answer:
true
Step-by-step explanation:
that is the literal definition
in a survey of 400 people,80% said that friday was there favorite day of the week .How many people selected friday
Answer:
(400/100)*80 = 320
Step-by-step explanation:
400 = 100%, just divide by 100 and multiply by 80
Answer:
80%of 400
400-80
400-80 =320
=320 people choose Friday
checking
320
80+20= 100
320+ 80=400
Which is not an equation of the line going through (6,7) and (2,-1) A. y-7=2(x-6) B. y=2x-5 C. y-1=2(x+2) D. y+1=2(x-2)
Answer:
C. y-1=2(x+2)
Step-by-step explanation:
A. y-7=2(x-6)-point slope form: y-y1=2(x-x1)-coordinate point: (x1,y1)=(6,7)
Now let's check that the other point works-just sub in the coordinates for the x and y variables.
y-7=2(x-6)\\-1-7=2(2-6)\\-8=2(-4)\\-8=-8
So answer choice A. goes through both points, so no.
B. y=2x-5-slope-intercept form, so just sub in both sets of coordinates separately to see if they each work.
y=2x-5\\7=2(6)-5\\7=12-5\\7=7\\equal
y=2x-5\\-1=2(2)-5\\-1=4-5\\-1=-1\\equal
Both work, so no.
C. y-1=2(x+2)-point slope form that gives us first coordinate set--(-2,1)
Except that the point is actually (2,-1) not (-2,1). That means that answer choice C is not an equation of the line thaat goes through (6,7) and (2,-1), so yes.
D. Anyway, if we check D--y+1=2(x-2)--coordinate point given: (2,-1), which is correct, so no.
(I have more questions, but I'm sorry for so much of these bc I'm very busy so if u want the rest of the questions Let me know!
Answer:
7.. option a is right
............................ .. sorry mate I also so busy so that. I can't all ur questions
The length of one leg of the right triangle is 2 ft less than the length of the hypotenuse. The length of the other leg is 1 ft less than the length of the hypotenuse. Find the length of the sides.
Answer:
The length of the sides are 3 feet and 4 feet, respectively.
Step-by-step explanation:
Given the fact that triangle is a right triangle, it can be represented by Pythagorean Theorem:
[tex]r^{2} = x^{2}+y^{2}[/tex]
Where:
[tex]r[/tex] - Hypotenuse, measured in feet.
[tex]x[/tex], [tex]y[/tex] - Legs, measured in feet.
In addition, each leg can be determined as functions of hypotenuse:
[tex]x = r-2\,ft[/tex]
[tex]y = r-1\,ft[/tex]
Hence, the Pythagorean identity can be expanded and remaining variable may be solved:
[tex]r^{2} = (r-2\,ft)^{2}+(r-1\,ft)^{2}[/tex]
[tex]r^{2} = r^{2}-4\cdot r +4 + r^{2}-2\cdot r +1[/tex]
[tex]r^{2}-6\cdot r +5 =0[/tex]
[tex](r-5)\cdot (r-1) = 0[/tex]
[tex]r = 5\,ft\,\vee\,r = 1\,ft[/tex]
According to the definition of hypotenuse, it must be longer than any of legs. Hence, there is just one solution that is reasonable:
[tex]r = 5\,ft[/tex]
And length of the sides are, respectively:
[tex]x = 5\,ft-2\,ft[/tex]
[tex]x =3\,ft[/tex]
[tex]y = 5\,ft-1\,ft[/tex]
[tex]y = 4\,ft[/tex]
The length of the sides are 3 feet and 4 feet, respectively.
Write the converse of the conditional statement: If 2x+4=8, then x=2
Answer:
x = 2 so 8 = 4+x2
Step-by-step explanation:
Answer:
4+4=8
Step-by-step explanation:
YAwhats wrong
Drag the blue point to a place on the number line
indicating a number that is...
...less than 3.
Answer:
The number line is shown below.
Step-by-step explanation:
We need to represent number that is less than 3 on a number line.
Let x be numbers.
So, [tex]x<3[/tex].
Now, we have a number which represents x<3. Here 3 is not included in the solution set, so there is an open circle on 3 and left side of 3 are in the solution set.
The number line is shown below.
Evaluate 4g−12 when g=5
Answer:
[tex]8[/tex]
Step-by-step explanation:
[tex]4g - 12 = 4 \times 5 - 12 = 20 - 12 = 8[/tex]