Answer:
Korl will catch up to Krystal in 2 hours.
Step-by-step explanation:
18x3=54 this shows how long Krystal has driven in 3 hours.
27x2=54 this shows that in 2 hours Korl will have driven 5 mph.
Now as you can see both quotient are 54 and the question is How long until Korl catches up to Krystal so it's 2 hours
HOPE THIS HELPED:)
Find the value of x³ + y³ + 3x²y when x = 2 and y = 2
x³ + y³ + 3x²y
= (2)³ +(2)³ + 3 × (2)² ×2
= 8 +8 + 6× 4
= 16 + 24
= 40
Answer:40Step-by-step explanation: Put the value of X and y in the given equation (2)*3+(2)*3+3(2)*2(2) = 8+8+24 = 40
In triangle ABC, a-64, b-18, and c-63. Find the value of B.
Triangles are shapes with three sides and angles
The value of B is 16.3 degrees
How to determine the value of BThe given parameters are:
a = 64
b = 18
c = 63
Next, we apply the following cosine formula
[tex]b^2 = a^2 + c^2 - 2ac\ cos(B)[/tex]
So, we have:
[tex]18^2 = 64^2 + 63^2 - 2 * 64 * 63 \ cos(B)[/tex]
Evaluate the exponents
[tex]324 = 8065 - 8064\ cos(B)[/tex]
Collect like terms
[tex]324 - 8065 = - 8064\ cos(B)[/tex]
[tex]-7741 = - 8064\ cos(B)[/tex]
Solve for cos (B)
[tex]\cos(B) =0.9599[/tex]
Take the arccos of both sides
[tex]B =cos^{-1}(0.9599)[/tex][tex]B = 16.3[/tex]
Hence, the value of B is 16.3 degrees
Read more about triangles at:
https://brainly.com/question/17972372
Anoche fuimos al cine cuando llegamos ya había vendido tres quintas partes de la entradas disponibles si sólo quedaron 75 entradas por vender ¿Cuántas entradas había en total?
Usando proporciones, hay que habían 188 entradas en el total.
¿Qué es una proporción?Una proporción es una fracción de la cantidad total.
En este problema, hay que dos quintos de el total de entradas n restanban, e la cantidad equivalente a esta proporción es de 75 entradas, o sea:
[tex]\frac{2}{5}n = 75[/tex]
[tex]n = \frac{75 \times 5}{2}[/tex]
[tex]n = 188[/tex]
Habían 188 entradas en el total.
Puede-se aprender más a cerca de proporciones en brainly.com/question/26395519
which investor is making a common investment mistake
Answer:
Constantly watching the markets
Step-by-step explanation:
Aliyah wants to estimate the value of the quotient of 5. 68 times 10 Superscript negative 3 and 8. 54 times 10 Superscript negative 9. Which statement about the value is true? The value will be greater than 1 because (negative 3) divided by (negative 9) is a positive number. A number in scientific notation with a positive exponent has a value greater than 1. The value will be greater than 1 because (negative 3) minus (negative 9) = 6. A number in scientific notation with a positive exponent is greater than 1. The value will be less than 1 because 5. 68 divided by 8. 54 is less than 1. The negative exponents will make it even smaller. The number will be less than 1 because 5. 68 times 10 Superscript negative 3 is a very small number and division always makes the size of a number smaller.
Answer:
b
Step-by-step explanation:
if your paid $48,865.00 annually a year, what would be your salary per week??
Step-by-step explanation:
Divide 48865.00÷7=6980.71 per week
Find the value of x plsss the people that answerd this got it wrong.
Answer:
155°
Step-by-step explanation:
The total of the angles in a triangle is 180° and also any pair or trio of angles that maje a straight angle also add up to 180°. So look for those set ups.
The left most triangle has an angle marked 35° and also a right angle is labelled. The right angle is 90° So the third angle must be 180° - (35°+90°)
180° - 125°
55°
The 55° angle(we just found) and the 60° angle (labelled) and a third unmarked angle all together maje a straight angle, 180°.
So we can calculate the third angle, which is an angle in the other shown triangle.
180° - (55° + 60°)
180° - 115°
65°
This triangle also has a right angle in it. And the third angle can be calculated in the same way.
180° - (65° + 90°)
180° - 155°
25°
Last time, the 25° angle and the angle marked x make a straight angle.
180° - 25°
155°
Can someone please help me I am stuck on the math here is the question
It is 124x-756x=?
Answer:
-632x
Step-by-step explanation:
if the value of x is not given there is nothing to do with it. since it is multiplied by each of the terms then it should me multiplied by the answer as well
hope this helps
Answer:i think you add 124 to -756 witch is -632
Step-by-step explanation: i think i got it right
Write a simplified expression for the area of this rectangle:
please help <33
Answer:For a rectangle the expression would be:
A
=
(
x
+
6
)
⋅
(
x
−
3
)
or
A
=
x
2
−
3
x
−
18
Explanation:
The formula for area (assuming this is a rectangle) is:
A
=
l
⋅
w
where
A
is the area of the rectangle,
l
is the length of the rectangle and
w
is the width of the rectangle.
In this problem we are provided the length and width which we can substitute for the
l
and
w
is the formula to give:
A
=
(
x
+
6
)
⋅
(
x
−
3
)
We can expand this to the form of a quadratic equation by cross multiplying to give:
A
=
x
2
+
6
x
−
3
x
−
18
A
=
x
2
−
3
x
−
18
Step-by-step Explanation: The formula for area (assuming this is a rectangle) is: A=l⋅w where A is the area of the rectangle, l is the length of the rectangle and w is the width of the rectangle.
It takes 5 men 3.5 hours to build a wall. Work out how long it takes 4 men to build the same wall, giving your answer in hours and minutes.
Answer:
4 men takes 4 hours 22.5 minutes to build the same wall
Step-by-step explanation:
5 men takes 3.5 hours
1 men will take ( 5 * 3.5 ) = 17.5 hours
so 4 men shall take ( 17.5 / 4 ) = 4.375 hours = 262.5 minutes
4 men takes 4 hours 22.5 minutesAnswer:
I think the answer is 3 hours and 20 minutes or 3.2 hours.
Dylan's garden is 9 feet long. How long is the garden in inches? (1 foot = 12 inches)
Answer:
108 inches long
I don't get this question.
A man is 6 feet 3 inches tall. The tip of his shadow touches a fire hydrant that is 13 feet 6 inches away. What is the angle of elevation from the base of the fire hydrant to the
top of the man’s head? Round to the nearest tenth of a degree.
well, since a foot is 12inches, 6' 3" will just be 6.25' and 13' 6" will be 13.5'.
Check the picture below.
Make sure your calculator is in Degree mode.
Dean has worn a white shirt on 6 of the last 18 days. What is the experimental probability that Dean will wear a white shirt tomorrow?
Write your answer as a fraction or whole number.
Answer:
6/18 which reduces to 1/3 or 33.3%
Step-by-step explanation:
based on prior 18 days, the probability would be 6/18
5. What is 7 1/5 as a percent?
A. 7.2% B. 27%
C. 72%
D. 720%
Answer:
D
Step-by-step explanation:
7 is a whole number meaning it goes in the hundreds place. and 1/5=20%
Please help me with this question urgently! Thanks in advance.
Step-by-step explanation:
First. plug in values of x and try to form a curve. Since this a quadratic, we will get a parabola( a U shaped graph).
Plug in values from -3 to 4.
for x.
[tex]f( - 3) = 2( - 3) {}^{2} - 3( - 3) - 5 = 22[/tex]
[tex]f( - 2) = 2( - 2) {}^{2} - 3( - 2) - 5 = 9[/tex]
[tex]f( - 1) = 2 + 3 - 5 = 0[/tex]
Keep going until you get until you get to 4 for x.
The graph above should be your curve.
1. The roots of a quadratic are the x values when y=0, here it is 2.5 and -1.
2. Since the leading degree coeffecient is positive, we have a minimum value. It hard to tell the minimum here so let put this in vertex form, we have
[tex] 2{x}^{2} - 3x - 5[/tex]
First. we do
[tex] \frac{ - b}{2a} [/tex]
[tex] \frac{ - ( - 3)}{4} [/tex]
[tex] = \frac{3}{4} [/tex]
Now, we plug that in to find our y intercept of the minimum.
[tex]2( \frac{3}{4} ) {}^{2} - 3( \frac{3}{4} ) - 5 = \frac{18}{16} - \frac{9}{4} - 5 = - \frac{ 18}{16} - 5 = - \frac{98}{16} [/tex]
So we have
(3/4,-98/16).
or
(3/4,-6.125).
Classify the polynomial according to its degree and number of terms. 8x
[tex]\huge\fbox{Hello!}[/tex]
A Quick Guide to Classifying Polynomials
[tex]\bigstar[/tex] Look at the number of terms and the exponent.
1 term, exponent of 1 -1st degree monomial
Example: 4r
2 terms, exponent of 2 - 2nd degree binomial
Example: 4r²+9
3 terms, exponent of 3 - 3rd degree trinomial
Example: 4r³+9r²+1
4 terms, exponent of 4 - 4th degree polynomial
Example: 4r⁴+9r³+r²+8
8x is a 1st degree monomial.
Hope it helps.
Feel free to ask if you have any doubts.
[tex]\bf{-MistySparkles^**^*[/tex]
What number needs to be added to 4 and 9 so that the ratio of the first number to the second
becomes 2:3?
A sweater that originally
costs $50 is marked 10%
off. What is the sale price?
Answer:
$45
Step-by-step explanation:
100 - 10 = 90
90/100 = 0.9
50 * 0.9 = 45
A watch which was bought for R250, was sold for R375. What was the profit made on the sale?
Answer:
R125 profit was made
Step-by-step explanation:
R375-250=R125
R125+R250=R375
Solve the math problem
Select all prisms that have a volume between 25 and 40 cubic units.
Answer:
your answer is e, f, and a
Step-by-step explanation:
from the sum of 3x^2-5x+1 and x^3 +3x - 1 subtract 2x^3 - 4x2
Answer:
it is -x^3 + 7x^2 -2x if you meant subtract 2x^3 - 4x^2 But if you meant subtract. 2x^3 - 4x +2 then the answer is -x^3 +3x^2 +2x -2
Step-by-step explanation:
If I save 233 dollars each month for 20 months, how much will I end up having?
Answer:
$4660
Step-by-step explanation:
233 x 20 = 4660
Answer:
$4660
Step-by-step explanation:
233 multiplied by 20 is 4660
What is the value of x ?
Answer: 500
Step-by-step explanation:
What is the domain of this relation?
{(5,6), (5,3), (5,1), (5,0), (5,-6), (5,-10)}
Answer:
5
Step-by-step explanation:
All of the x values are 5, so the domain is 5
Elise takes 12 minutes to rake up and bag a pile of leaves.
Her sister Katherine takes twice as long. How many minutes would it
take both of them working together to complete 1 0 bags of leaves?
Answer:
80 minutes
Step-by-step explanation:
1/12 + 1/24 = 3/24
24/3 = 8 min
8 × 10 = 80
Lauren drove her car 20 miles on 10 gallons and gasolin. At this rate, how many gallons qill she use on a 1,200 mile trip?
Answer:
600 gallons
Step-by-step explanation:
10÷20=0.5
0.5 x 1,200=600 gallons
y + x = 3
y = 1.5x + 1
find x and y
x=0.8, y=2.2
The image has the work shown
Hope this helps
Answer:
[tex]y + x = 3 \\ \\ y = - x + 3 \\ \\ - x + 3 = 0 \\ \\ - x = - 3 \\ \\ x = 3 \\ \\ y = 1.5x + 1 \\ \\ y = 1.5 \times 3 + 1 \\ \\ y = 4.5 + 1 \\ \\ y = 5.5[/tex]
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# simile #
# Bora 7#
is x-2 a factor of f(x)=6x^2-7x-5
Answer:
its not
Step-by-step explanation:
if you do the division euclidiene the rest will be 5 not zero
f(x)=(x-2)(6x+5)+5
