Answer:
I think it's 12 bro, I'm not sure
What two numbers has a sum of 18 and a difference of 8?
13 and 5
let's say the two numbers are x and y
x+y = 18
x-y= 8
x+y+x-y= 18+8
18+8 = 26
2x = 26
x = 13
18-13 = 5
y = 5
Identify The slope and y-intercept Of the equation Y= -8
to get the equation of any straight line we simply need two points off of it, hmmm let's use the points in the picture below.
[tex](\stackrel{x_1}{-1}~,~\stackrel{y_1}{-8})\qquad (\stackrel{x_2}{5}~,~\stackrel{y_2}{-8}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-8}-\stackrel{y1}{(-8)}}}{\underset{run} {\underset{x_2}{5}-\underset{x_1}{(-1)}}}\implies \cfrac{-8+8}{5+1}\implies \cfrac{0}{6}\implies 0[/tex]
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-8)}=\stackrel{m}{0}(x-\stackrel{x_1}{(-1)}) \implies y+8=0(x+1) \\\\\\ y+8=0x+0\implies y=\stackrel{m}{0} x\underset{b}{-8}\impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}[/tex]
The length of a rectangle is three times the width. The perimeter is 96 cm. Find the length and width of the rectangle.
Answer:
Length = 36cm
Width = 12 cm
Step-by-step explanation:
Perimeter = all the sides added up.
Perimeter of a rectangle = L + L + W + W OR 2L + 2W
We are given that the length = 3 times the width. So L = 3W
P = 2L + 2W
96 = 2 (3W) + 2W
96 = 6W +2W
96 = 8W (divide both sides by 8)
W = 12 cm
To find the length- we know the length is 3 times the width.
So L = 3 x 12 = 36 cm
Complete the pattern below in the list of numbers. 5, 15, 9, 19, 13,
Answer:
23
Step-by-step explanation:
5+10=15
15-6=9
9+10=19
19-6=13
So, we should do:
13+10=23
langston has 45 greeting cards.he gives 18 of the card to his frinds. What percentil of this greeting card does he give to his frinds.?
Answer:
40%
Step-by-step explanation:
Convert the fraction to a decimal, then multiply by 100.
Find perimeter of a rectangle length 3 ft 6 inches width 2 ft?
Answer:
11ft
Step-by-step explanation:
3+4+2+2=11
11x - 3x + 96 = 11x + 48
Answer:
x=16
Step-by-step explanation:
Jon, Clark, Louis, herb, chuck, and Roy have entered a trumpet contest. The top 3 contestants will receive awards. How many different ways could the judges select the top 3 contestants?
Answer:
well
Step-by-step explanation:
think about it 3 ways so its more than 3 maybe 4 5 6 7 or 9 im not sure
Find f(-2) for f(x)=-4x-7
how do i find the area of 3/4 of a circle with a radius of 6
Answer:
you divide the circumference of the circle by 1/4
Step-by-step explanation:
I think this is correct
Decrease 400 ml by 3/4
Answer:
100
Step-by-step explanation:
3/4 is a quarter
1/4 of 400 is 100 seeing as 100x4 is 400.
if BC=5x-9 and AB =2x+21 solve for x
Answer:
1st one x = BC/5 +9/5
2nd one x = AB/2 - 21/2
Step-by-step explanation:
The temperature of a cup of coffee varies according to Newton's Law of Cooling: dT dt equals negative k times the quantity T minus A, where T is the temperature of the coffee, A is the room temperature, and k is a positive constant. If the coffee cools from 100°C to 90°C in 1 minute at a room temperature of 25°C, find the temperature, to the nearest degree Celsius of the coffee after 4 minutes.
74
67
60
42
Answer:
67
Step-by-step explanation:
A = 25, T(0) = 100, T(1) = 90, find T(4)
dT/dt = -k(T - A)
d(T - A)/dt = -k(T - A)
d(T - A)/(T - A) = -k dt
ln(T - A) = lnC - kt
[tex]T(t) -A=Ce^{-kt}\\T(t) = A + Ce^{-kt} = 25 + Ce^{-kt}\\T(0) = 25 + C = 100\\C=75[/tex]
[tex]T(t) = 25 + 75e^{-kt}\\T(1) = 25 + 75e^{-k} = 90\\75e^{-k} = 65\\e^{-k} = \frac{65}{75}, k = ln\frac{75}{65} = 0.1431\\T(t) = 25+75e^{-0.1431t}\\T(4) = 25+75e^{-0.1431\times4} = 67.3[/tex]
26. Which of the following DO NOT illustrates independent events?
A. Landing on heads after tossing a coin and rolling a 5 on a single 6-sided die.
B. Choosing a marble from a jar and landing on heads after tossing a coin.
C. Rolling a die and getting an even number.
D. Choosing a 3 from a deck of cards, replacing it and then choosing an ace as the second card.
Answer:
C. obtaining an even number when rolling a die
Step-by-step explanation:
Two events are independent when neither depends on the other. That is, the probability that one occurs is not affected by the occurrence, or lack of occurrence, of the other event. Their joint probability is the product of their individual probabilities.
__
Among the answer choices, all describe two independent events except C. Choice C describes one (1) event, so does NOT illustrate independent events.
Look at image, I need help as soon as possible!
Answer:
I predict 1,008 people may have cookies as their favorite snack.
Step-by-step explanation:
27 + 21 + 63 + 64 = 175
63 x
---- = -------
175 2800
Multiply both sides by 16
63 x 16 = 1,008
con el azucar de un saco enpaco bolsas de 250 cada una.¿cuantas bolsas en paco
Esta pregunta esta incompleta
Pregunta completa
El señor Juan tiene una tienda de abarrotes y sus ventas son al mayoreo y al menudeo. La semana pasada recibió dos toneladas de azúcar en 40 sacos de 50 kg cada uno.
Con el azúcar de un saco empacó bolsas de 250 cada una.¿cuantas bolsas en paco
Answer:
200 bolsas.
Step-by-step explanation:
Se nos dice en la pregunta,
La semana pasada recibió dos toneladas de azúcar en 40 bolsas de 50 kg cada una.
Esto significa
1 bolsa = 50 kg de azúcar.
1 kg = 1000 gramos
50 kg = 50 × 1000 gramos
= 50000 gramos
Por tanto, 1 bolsa contiene = 50000 gramos de azúcar.
A partir de la pregunta anterior, se nos pregunta cuántas bolsas de azúcar obtendría si cada bolsa contuviera 250 gramos.
Por lo tanto:
50000/250 gramos
= 200 bolsas.
Por lo tanto, obtendría 200 bolsas.
Select all of the statements that are true for the given parabola. A. The minimum is (-1, 6)
B. The line of symmetry is x = -1
C. The x-intercepts are (0, 1) and (0, -3)
D. The maximum is (-1, 6)
Answer:
b AND d
Step-by-step explanation:
trust me ON this one
Answer:
B and D is correct
Step-by-step explanation:
What is the slope of the line y = 3?
Answer:
m = 0
Step-by-step explanation:
Using the slope intercept form. The slop is 0
Answer: m = 0
Explanation: The equation y = 3 can be thought of as y = 0x + 3.
So our line has a slope of 0 and a y-intercept of 3.
When the equation of any line reads "y = a number",
it's graph will always be a flat or horizontal line.
Whenever we have a horizontal line, the slope is always 0
Divide the difference of 18 and 3 by the sum of
1 and 2.
Answer:
5
Step-by-step explanation:
1. 18-3=15
2. 1+2=3
3. 15÷3=5
Always remember to bear in mind your mathematic vocabulary.
Which relationships describe angles 1 and 2?
Select each correct answer.
vertical angles
complementary angles
adjacent angles
supplementary angles
Answer:
Supplementary angles
Step-by-step explanation:
Those kind of angles are next to each other.
Answer:
adjacent and complimentary angles
Step-by-step explanation:
what I got
Simplify 32x3⎯⎯⎯⎯⎯⎯⎯⎯√ ·6x3⎯⎯⎯⎯⎯⎯√
A.
6x23x⎯⎯⎯⎯√
B.
16x3
C.
8x33⎯⎯
D.
6x33⎯⎯
Answer:
The answer is: √63=√32⋅7=√32⋅√7=3√7 .
Step-by-step explanation:
Solve the literal equation for E.
LaTeX: G=\frac{2b^2E}{F}
Answer:
[tex]E=\dfrac{FG}{2b^2}[/tex]
Step-by-step explanation:
Multiply by the inverse of the coefficient of E.
[tex]G=\dfrac{2b^2E}{F}\\\\\boxed{E=\dfrac{FG}{2b^2}}[/tex]
Pls I need help
Given h(x) = -2x + 4, solve for a when h(2)
= -
- 8.
Answer:
x = 6
Step-by-step explanation:
The Bank of France sells U.S. The bank of France sells U.S dollars ($) at a rate of ($1.40)/(€1) and buys U.S. dollars
at a rate of ($1.80)/(€1). At the beginning of a trip, Sandra exchanged $420 to get
€233.33. At the end of the trip, she is left with €36, so she exchanges the €36 back to
U.S. dollars. How many U.S. dollars will Sandra receive in exchange?
Answer:
Sandra will receive 50.4$
Step-by-step explanation:
1.40 x 36 = 50.4
Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!
Sandra will receive $50.4 in exchange of her currency.
What is exchange rate?
" Exchange rate is the process of changing currency of one country at the rate of other country."
According to the question,
Bank of France sells U.S dollars ($) at a exchange rate of = ($1.40)/(€1)
Bank of France buys U.S. dollars at a exchange rate of = ($1.80)/(€1).
Sandra needs to exchange currency back to U.S. dollars. = €36
U.S. dollars received by Sandra in exchange currency = $ ( 1.40 × 36)
= $ 50.4
Hence, Sandra will receive $50.4 in exchange of her currency.
Learn more about exchange rate here
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Multiply $81$ by the sum of $2$ and $3$.
Determine the rational zeros for the function f(x)=8x^(3)-6x^(2)-23x+6.
a. -(1)/(2),(1)/(4),2
c. -1(1)/(2),(1)/(4),2
b. 1(1)/(2),(1)/(4),-2
d. -1(1)/(2),-(1)/(4),2
Answer:
Step-by-step explanation:
Rational zeros of f(x) = 8x³-6x²-23x +6 is equals to [tex]2, \frac{-3}{2} , \frac{1}{4}[/tex].
What are rational zeros?"A rational zero of a polynomial P(x) is defined as when the variable x = p/q and P (p/q) = 0 where p and q are any integers."
According to the question,
Given,
f(x) = 8x³-6x²-23x +6
Factor of 6 'p' =±1, ±2, ±3, ±6
Factor of 8 'q' = ±1 , ±2, ±4 , ±8
Using trial and error method x=2 is a common factor
Substitute x=2 in f(x) we get,
f(2) = 8(2)³ -6(2)² -23(2) +6
= 64-24-46+6
=0
(x-2) is a factor of f(x).
Divide f(x) by (x-2)
[tex]\frac{8x^{3}-6x^{2} -23x+6 }{(x-2)}[/tex]
= 8x²+10x-3
Factorize it we get,
8x²+12x-2x-3
= 4x(2x+3) - 1(2x+3)
= (4x-1)(2x+3)
For rational zeros ,Substitute f(x=(p/q)) =0
x-2=0
⇒ x=2
2x+3=0
⇒x= -3/2
= [tex]-1\frac{1}{2}[/tex]
4x-1 =0
⇒x=1/4
Hence, Option (C) is the correct answer.
Learn more about rational zeros here
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Which statement is true about the relationship between the amount of plant food remaining and the number of days? This relationship is a function because more than one amount of plant food remains each day. O This relationship is not a function because only one amount of plant food remains each day. O This relationship is not a function because more than one amount of plant food remains each day. O This relationship is a function because only one amount of plant food remains each day.
Plant food is indeed dung or a mix of nitrates that are also given to soil to make it fruitful. Plant fertilizers are available in a variety of formats in the market, including water-soluble plant fertilizer, sustained-release crop fertilizer, and many others. Natural organic food is the best option for fertilizing.
Feeding the plants on a normal basis ensures optimum growth, the production of attractive blossoms and fruit, and the developing resistance to harsh weather and disease.As only one amount of plant-based foods remains every day, this connection is not a function. This statement is about the connection between the group of plant food left and the length of stay.Therefore, the final answer is "2nd Choice".
Learn more:
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could someone help me?
Answer:
∠B = 65°
Step-by-step explanation:
Complementary angles are angles that add up to 90°. So if there is 90 total degrees - 25 degrees of ∠A, then ∠B = 65°.
A coach buys 15 basketball uniforms for $546.
Which relationship relates the price to uniforms. Circle
all that apply.
a. 1:15
b. 15 to 546
c. 36.4071
d. 1 to 36.40
e.546 to 15
Answer:
d
Step-by-step explanation:
Please help (21 points)
Answer:
|a^13| / 10
Step-by-step explanation:
√(0.01)=1/10
√(x^26)= |a^13|
[Answer]= |a^13| / 10
Please rate 5 stars if correct!!!
I hope this helps!!!