Answer: 4 cards are left to be colored.
Step-by-step explanation:
As per given,
Fraction of total cards colored = [tex]\dfrac12+\dfrac38[/tex]
[tex]=\dfrac{4+3}{8}\\\\=\dfrac{7}{8}[/tex]
Fraction of cards left to be colored = [tex]1-\dfrac78=\dfrac18[/tex]
Total cards = 32
Number of cards to be colored = [tex]\dfrac18\times32=4[/tex]
Hence, 4 cards are left to be colored.
Determine en donde la funcion dada es creciente,concava hacia riba y concava hacia abajo. y= x3–3x–1
Answer:
Es creciente en los siguientes intervalos: [tex][-\infty,-1] U [1,\infty][/tex]
Es concavo hacia abajo en el intervalo: [tex][-\infty,0)[/tex]
Es concavo hacia arriba en el intervalo: [tex](0,\infty][/tex]
Step-by-step explanation:
Sea la función:
[tex]f(x)=x^{3}-3x-1[/tex]
Para determinar el intervalo de crecimeinto debes determinar la primer derivada de la función (f'(x)). El intervalo donde f'(x) > 0 es creciente.
La derivada de f(x) es:
[tex]f'(x)=3x^{2}-3[/tex]
Entonces es creciente en los siguientes intervalos:
[tex][-\infty,-1] U [1,\infty][/tex]
Ahora para determinar la concavidad debemos determinar la segunda derivada de la función (f''(x)). Si f''(x) > 0 la función es concava hacia arriba, si f''(x) < 0 la funcion es concava hacia abajo.
La segunda derivada de f(x) es:
[tex]f''(x)=6x[/tex]
Por lo tanto:
Es concavo hacia abajo en el intervalo: [tex][-\infty,0)[/tex]
Es concavo hacia arriba en el intervalo: [tex](0,\infty][/tex]
Espero te haya ayudado!
find value of x and y
PLEASE HELP IM RUNNING OUT OF TIME
just cheat dawg sometimes you got to cheat
Find the sum of 5x2 - 3x + 2 and 3x2 - 4x - 1. Show all your work!!
Answer:
5 x ^2 − 3 x + 2 = 3 x − 4 x − 1 = − x − 1
Can't explain, cause it will be more confusing.
Which of the following equations is the translation 2 units down of the graph of y= Ix ?
a.) y= | x - 2|
b.) y= | x + 2|
c.) y= | x | +2
d.) y= | x | -2
Answer:
D
Step-by-step explanation:
translation down is just subtracting a number out side the | x |
Write an inequality for the sentence: the sum of a number and 3 is at least 4. a. N + 3 > 4 b. N + 3 < 4 c. N + 4 > 1 d. N + 4 < 1
Answer:
a.N+3>4
Step-by-step explanation:
Let N be the number
According to question
Sum of N and 3 is given by
N+3
Atleast means greater than or equal to
At-least 4 means greater than or equal to 4
Therefore,
[tex]N+3\geq 4[/tex]
Hence, the inequality for the given sentence is given by
[tex]N+3\geq 4[/tex]
a.N+3>4
A jacket cost $35.50 more than a pair of tennis shoes if the total cost of both items is $161.30 find the cost of each
Answer:
$62.9 and $98.4
Step-by-step explanation:
Let the cost of tennis shoe be x
Since a jacket cost $35.50 more than a pair of tennis shoe,
Then cost of jacket would be
= $35.50 + x
Total cost of both items would be;
x + $35.50 + x = $161.30
2x = $161.30 - $35.50
2x = $125.8
x = $62.9
Therefore, cost of pair of tennis shoe is $62.9
Jacket cost would now be
= $35.5 + x
= $35.5 + $62.9
= $98.4
4(x + 4y) + 3(4x + y)
1.
Violet earns $54 for mowing 3 lawns. If she charges the same amount for each
lawn, how much will she earn for mowing 5 lawns?
Sweets are sold loose, or pre-packed in 120 g bags.
The 120g bags are £1.49 each.
The loose sweets are £0.89 for 100g.
By calculating the price per gram, determine which is better value.
Answer:
Step-by-step explanation:To find the better deal divide the price by the weight of each and compare:
1.49 / 120 = 0.012 per gram
0.89/ 100 = 0.0089 per gram
Buying loose is the better deal because the price per gram is smaller
what's the slope?
PLZ HELP AHH
Answer:
I think the answer is 2/3
There are 86 students and 6 teachers attending the school field trip. Each van holds 16 people. How many vans will be needed to transport all students and teachers?
Answer: 6 vans
Step-by-step explanation: one of the vans would only have 6 people
Answer:
6 vans! Hope it helps!
Step-by-step explanation:
A circle has a diameter of 10 millimeters. What is the area of the circle?
Answer:
78.54 millimeters
Step-by-step explanation:
A=πr^2
A= 3.14 times 5 millimeter squared
A=78.54
CAN SOMEONE PLEASE HELP ME???
Answer:
1
Step-by-step explanation:
you are rising 1 and running 1 so 1/1 equals 1
system by substitution.
Tar 7x - 3y=8
y=3x
Answer:
3k
Step-by-step explanation:
jr9rrirjrhr 4irjrirbrurbir rir rir rir her ror ror ir mirror tir tir the ever tir threw tr her rir her r ror rd jenn lwor rope rope mtn 4 ven kr rke the rurr
What is the Perpendicular slope of y=2/5(x)-11
Answer: 2/5
Step-by-step explanation:
perpendicular to y=2/5x-11 and has a y-intercept of 2. For a line to be perpendicular to another, their slopes must be "negative reciprocal". Therefore we KNOW that the slope is 2/5. also i dont know if you have already solved it but here you go
The length of a rectangle is 4 meters less then 3 times the width. The perimeter is 16 meters. Find the width
Solution :
Given :
Perimeter, P = 16 m
The length is 4 times less then three times the width.
Let the length be l and width be w.
Therefore, according to the equation :
Length, l = 3w - 4 ................(i)
Perimeter, P = 2(l+w)
16 = 2(l+w) ............(ii)
16 = 2l + 2w
8 = l + w ..............(iii)
Therefore solving equation (i) and (iii)
l = 3w - 4
8 = l + w
We get, w = 3 and l = 5
Answer:
16 divided by 3 = 5.3
Step-by-step explanation:
There are some chickens and pigs in a farm. If you count the number of heads, you get 80 heads. If you count the number of feet, you get 254 feet. How many chickens and how many pigs are there?
Step-by-step explanation:
Let's assume that x = number of chickens and y = number of pigs.
[tex]80 \: heads = x + y[/tex]
Since there are 4 feet for pigs and 2 feet for chickens:
[tex]254 \: feet = 2x + 4y[/tex]
By substitution, let's rearrange the first equation:
[tex]x = 80 - y[/tex]
Substituting this equation to the second one:
[tex]254 = 2(80 - y) + 4y \\ 254 = 160 - 2y + 4y \\ 254 - 160 = 2y \\ 94 = 2y \\ y = 47 \: pigs[/tex]
Since we found the number of pigs already, let's substitute the value to any of the equations.
[tex]80 = x + y \\ 80 = x + 47 \\ 80 - 47= x \\ x = 33 \: chickens[/tex]
There are 32 chickens and 48 pigs.
To check if 3e are correct, let's use the second equation:
[tex]254 = 2x + 4y \\ 254 = 2(33) + 4(47) \\ 254 = 66 + 188 \\ 254 = 254[/tex]
Therefore, the values we found are correct.
Can someone explain similar triangles
There are 8 times as many dogs as cats. If the total number of dogs and cats is 45, how many dogs are there?
Answer:
40
Step-by-step explanation:
because if there are 5 cats and then there are 8 TIMES AS CATS then its 8 * 5= 40 +5 = 45
WHY 45?
because the total of cats and dogs is 45
Nina made 14 curtains of the same length out of 30 1/3 yards of fabric. What is the length of the curtain?
Answer:
2 1/6 yards
Step-by-step explanation:
Nina made 14 curtains of the same length out of 30 1/3 yards of fabric. What is the length of the curtain?
14 curtains = 30 1/3 yards
1 curtain = x yard
Cross Multiply
14 curtains × x yard = 30 1/3 yards × 1 curtain
x yards = 30 1/3 yards × 1 curtain /14 curtains
x yards = 30 1/3 yards /14
x yards = 30 1/3 ÷ 14
x yards = 91/3 × 1/14
x yards = 91/42
x yards = 2 7/42
x yards = 2 1/6 yards
Therefore, the length of the curtain is 2 1/6 yards
What is %+% Equal? My friend asked me and I didn't know what he was talking about.
This recipe makes 10 portions of porridge.
Complete the amount of each ingredient that is needed to make just 7 portions.
Recipe: Serves 10
350 g oats
1.4 ML MILK
70 g sugar
PLEASE HELPP
Answer:
245g oats
0.98L milk
49g sugar
Step-by-step explanation:
350÷10=35
1.4÷10=0.14
70÷10=7
35×7=245
0.14×7=0.98
7×7=49
Find the area of the isosceles trapezoid below by using the area formulas for rectangles and triangles. A = 10 cm, b = 14 cm, and c = 5 cm
Answer:
The area is 60 cm^2
Step-by-step explanation:
Here, we want to calculate the area of the isosceles trapezoid
Mathematically, the area is ;
Area = 1/2( a + b) c
Thus, we have that;
Area = 1/2(10 + 14)5
= 1/2 * 24 * 5
= 60 cm^2
Need help with this ASAP ILL LOVE U FOREVER
Answer:its easy it the first one you had posted
Step-by-step explanation:
Answer:
substitute x for -36 and y for 58
Step-by-step explanation:
I need this answer following the order of operation. Please help!
Answer:
The answer to the question provided is 1.
Which of the following could not be the lengths of sides of a right triangle?
6, 8, 10
8, 10, 12
8, 15, 17
9, 12, 15
Answer:
8,15,17
Step-by-step explanation:
it doesn’t match the triangle inequality theorem. the sum of the side lengths don’t exceed that of the third side
State what method you would use to solve the equation. Justify your answer. You do not need to solve the equation.
Answer:
By factoring
Step-by-step explanation:
4x^2+25=20x then:
4x^2-20x+25=0
factoring:
(2x-5)(2x-5)=0
2x=5, x=2.5
Solve the equation.
Y/8 =5
Y=?
Answer:
y/8 =5
y/8=5/1
Cross multiply
y/1=5/8
y =40
ΔABC is right-angled at C.If AC=5cm and BC=12cm find the length of AB.
Answer:
13
Step-by-step explanation:
This is an application of the pythagorean theorem. Because C is centered at the right angle, AB must be the hypotenuse (I would draw this for you but I don't know how). Thus, we would get sqrt(5^2+12^2)=sqrt(169)=13.
Independent Practice
Find the midpoint of the segment.
A. (4, 2)
B. (1, 0)
C. (-4, 0)
D. (0, 1)
Answer:
B. (1, 0)
Step-by-step explanation:
9514 1404 393
Answer:
B. (1, 0)
Step-by-step explanation:
You can count grid squares on the graph to find the point that is 4 of the 8 units horizontally between the points, and 2 of the 4 units vertically between the points. That will be ...
C +(4, 2) = D -(4, 2) = (1, 0)
__
Or, you can use the midpoint formula:
M = (C +D)/2
M = ((-3, -2) +(5, 2))/2 = (-3+5, -2+2)/2 = (2, 0)/2
M = (1, 0)
The midpoint is (1, 0).
