Answer:
4/15
Step-by-step explanation:
P(drawing white marble and black marble)
= 6/10 × 4/9 [9 as there is no replacement]
= 4/15
Kendrick was given the equations 4x+2y=14 and 3x-y=23. He decided to solve the system of equations by substitution. Each step is shown.
Step 1: 4x+2y=14
Step 2: 2y=14-4x
Step 3: y=7-2x
Step 4: 3x-7-2x=23
Step 5: x-7=23
Step 6: x=30
In which step did Kendrick make an error? Explain.
The Kendrick made a mistake in step 4 he did not multiply the term (7 - 2x) with -1, and he wrote 3x-7-2x=23 instead of 3x -7 +2x = 23
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
Kendrick was given the equations:
Step 1: 4x+2y=14 ...(1)
3x-y=23 ...(2)
From the equation first:
Step 2: 2y = 14 - 4x
Step 3: y = 7 - 2x put this value in the second equation
Step 4: 3x - (7 - 2x) = 23
Step 5: 3x -7 +2x = 23
Kendrick did a mistake in step 4 he did not multiply the term (7 - 2x) with -1
Thus, the Kendrick made a mistake in step 4 he did not multiply the term (7 - 2x) with -1, and he wrote 3x-7-2x=23 instead of 3x -7 +2x = 23
Learn more about the linear equation here:
brainly.com/question/11897796
#SPJ1
Find the value of X round to the nearest degree
Check the picture below.
Make sure your calculator is in Degree mode.
2. Two painting companies were hired to paint two different buildings. The amount of area
left to paint on both buildings is related to the amount of time that the painters spend
on painting each of them. This relationship is shown in the two graphs below:
a. what are the linear functions modelling the two relationships in the graphs above?
b. which painting company is painting their building at a faster rate? how much faster?
c. which painting company had less area to paint when they began painting their building?
d. how many hours will it take each painting company to completely finish painting their building?
pls help its due today and its 100 points
#a
#1
(0,2100)(7,2000)Slope:-
m=2000-2100/7=-100/7Equation in point slope form
y-2100=-100/7(x)y=-100/7x+2100Slope=-100/7
#2
(0,1800)(8,1700)Slope
m=1700-1800/8=-100/8Y intercept=1800
Equation
y=-100/8+1800Slope=-100/8
#b
First company is painting faster
-100/7 ÷-100/88/7 times faster#c
Comapny B
as their y intercept is 1800 which is less than 2100#d
for #1
-100/7x+2100=0100/7x=2100x=21(7)=147hours#2
100/8x=1800x=18(8)x=144hours1/4×___=5
fill in the blank.
Answer:
20
Step-by-step explanation:
5x4=20 5 is one quarter of 20
Answer:
[tex] \frac{1}{4} \times 20 = 5 \\ [/tex]
Aft
10 ft
3 ft
2 ft
6 ft
Surface Area =
Surfa
I need the surface area
Answer:
Step-by-step explanation:
Front and back
Givens
base = 6 feet
height = 2
Formula
Area = 1/2 B * h
Area = 1/2 * 6 * 2
Area = (2) 1/2 * 12
Area = 12 square feet for both front and back
Base
The base is a rectangle. A rectangle has the formula of Area = L*w
Givens
L = 10 feet
W = 6 feet
Area = 10 * 6 = 60
Left roof
The left roof is also a rectangle. Area = L*w
Givens
L = 10 feet
W = 3 feet
Area = 3 * 10 = 30 feet^2
Right Roof
The right roof is a rectangle. Area = L*w
Givens
L = 10 feet
w = 4 feet
Area = 4 * 10 = 40 ft^2
Total area
Total Area = right roof + left roof + Base + front and back
Total Area = 40 + 30 + 60 + 12
Total Area = 142 feet ^2
If the area of a circle is 4(pi), what is
its radius?
Answer:
radius=2cm
because area =πr²
π2²=4π
hope this helps
please give me brainliest
What is the value of x in the parallelogram below
Answer:
x=7
Step-by-step explanation:
We know that in a parallelogram diagonals bisect each other
Therefore
x=7
Giving Brainlist please help! Calculate the area of the figure.
Answer:
A. 120 cm²
Step-by-step explanation:
Area of figure :
1/2 x base x height1/2 x 24 x 1012 x 10120 cm²if the slope is 10.5 what would be the per hour
Answer:
Uh the slope
Step-by-step explanation:
What type of event is composed of two or more separate events?
Answer:
A compound event
Step-by-step explanation:
compound event is more complex than a simple event, as it involves the probability of more than one outcome. Another way to view compound events is as a combination of two or more simple events
Find the mean absolute deviation for each set of data. Round to the nearest Tenths.
5.2, 4.8, 5.5
4.7, 5.3, 4.9
Answer:
5.2 , 4.8 , 5.5 is 0.2
4.7 , 5,3 , 4.9 is 0.7
HELP PLEASEEEEeeeeee
An expression is defined as a set of numbers, variables, and mathematical operations. The value of the expression (√2)π/(√5) is 2.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The value of the expression (√2)π/(√5) can be written as,
[tex]\dfrac{\sqrt2 \pi}{\sqrt5}\\\\= \sqrt{\dfrac25}\pi\\\\=\sqrt{0.4} \times \pi\\\\[/tex]
= 0.6324 × π
= 1.9869 ≈ 2
Hence, The value of the expression (√2)π/(√5) is 2.
Learn more about Expression:
https://brainly.com/question/13947055
#SPJ1
Answer:
It would be D). 2.0 because we know the square root of 2 over the square root of 5 is the square root of 10 over 5. Now, we can plug in pi, giving us the square root of 10 times pi over 5. Giving us 1.98 which can be rounded up to 2.0
Here are three intersecting lines.
Write an equation that represents a relationship between these angles.
Answer:
Simplify the expression using the distributive property.
6(x +7)
Group of answer choices
6x + 42
6x + 7
x + 42
Step-by-step explanation:
Find the value of m < 7 .
Answer:
B
Step-by-step explanation:
the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
∠ FES is an exterior angle of the triangle , then
57° + ∠ F = 142° ( subtract 57° from both sides )
∠ F = 85°
Answer: Option B: 85°
Step-by-step explanation:
Finding E: 142 + 180 + E = 360
360 - 142 - 180 = 32
E = 32
Finding F: 57 + 32 + F = 180
180 - 57 - 32 = 85
F = 85
I need help with this
Answer:
(a) = 37π/180 radians
(b) = 37°
Step-by-step explanation:
Converting km/h ⇒ m/s :
⇒ 54 km/h x 5/18
⇒ 3 x 5
⇒ 15 m/s
===============================================================
Formula to calculate the angle :
⇒ tanθ = v/r
⇒ tanθ = (15 m/s)/(20 m)
⇒ θ = tan⁻¹ (0.75)
⇒ θ = 37°
=============================================================
Converting to radians :
⇒ Radian measure = Angle measure × π/180°
⇒ Radian measure = 37° × π/180°
⇒ Radian measure = 37π/180 radians
=============================================================
Solutions :
(a) = 37π/180 radians
(b) = 37°
PLease HELP ASAP!!! READ THE QUESTION CAREFULLY
Answer:
1/3
Step-by-step explanation:
How many hours and minutes is 125 minutes
Answer:
2 hours and 5 minutes.
Step-by-step explanation:
2 hours is 60mins+60mins which is equal to 120mins and then the extra 5mins
Hilary studied for a total of 2 hours and 5 minutes this week.
If Hilary studied for 25 minutes each day for five days this week, we can calculate the total study time by multiplying the number of minutes studied per day (25) by the number of days (5):
25 minutes/day × 5 days = 125 minutes
To convert this to hours and minutes, we need to divide the total minutes by 60 (since there are 60 minutes in an hour) to get the number of hours and find the remainder as minutes.
125 minutes ÷ 60 = 2 hours and 5 minutes
Therefore, Hilary studied for a total of 2 hours and 5 minutes this week.
Learn more about unit conversion click;
https://brainly.com/question/28600662
#SPJ6
Which of the following is an irrational number?
AOS because it cannot be rewritten as an integer
B. 0.98 35 , because
iS a repeating decimal
0. C.T 0, because it has no value
D.O /84, because it cannot be expressed as either a terminating or repeating decimal
Answer:
D
Step-by-step explanation:
This is an irrational number as it does not repeat and has an infinite number of combinations (as like pi)
What is the equation of the line that passes through the points (-8,-1) and (-4,-4)?
Answer:
1111111111111111111111111111111111111111111111111111111111111111111111111111111111111
Step-by-step explanation:
Can someone try to help?
Answer:
Step-by-step explanation:
In ΔABC, AB = 16 in, BC = 9 in, AC = 10 in. AD is perpendicular to the extension of BC . Find CD.
Answer:
25/6
I don't really know how I got it, sorry I can't help with that
The ice cream stand offers chocolate, vanilla, and strawberry ice cream. Find the approximate probability the next three customers order vanilla, chocolate, and then strawberry. A. 3.7% B. 11.1% C. 16.7% D. 8.3%
Answer:
D I'm sure that's is answer thank you
Which decimal is equivalent to -3 1/8? *20 points*
a. -3.18
b. -3. 125
c. -3. 1205
d. -3.12
Answer: -3.125
Step-by-step explanation: -1 divided by 8 = .125
Axel used the vertical line test on this graph, and decided it is a function because the vertical line only passes through one point, (3, 0).
On a coordinate plane, a circle is centered around (0, 0). A vertical line touches the edge of the circle at (3, 0).
Is Axel’s statement correct?
Answer: Axel's statement would be incorrect. (If this is for Edgenulty, the answer is C)
Step-by-step explanation: No, because the relation does not pass the vertical line test for every possible input.
Does anyone know how to solve this! (30 points)
Answer:
Step-by-step explanation:
-16[tex]t^{2}[/tex] +50t + 3
they ask what is the height after exactly 3 seconds, so plug in the 3 for t
t(3) = -16*[tex]3^{2}[/tex] + 50*3 +3
t(3) = -144 +150 +3
t(3) = 9 feet, ( the ball has gone up and come back down most of the way )
[tex] \huge\fbox\green{QUESTION} [/tex]
[tex] \mathsf \blue{calculate \: the \: gradient}[/tex]
[tex] \huge \fbox \orange{♧Answer♧}[/tex]
[tex] \mathcal\blue{METHOD\:1} [/tex]
[tex] \mathsf \purple{ - ( \frac{y}{x} )}[/tex]
[tex] \mathsf \purple{ - ( \frac{ - 4}{5})} [/tex]
[tex] \mathsf \purple{( \frac{4}{5} )}[/tex]
[tex] \mathcal\blue{METHOD\:2} [/tex]
[tex] \mathsf\purple{m\:=\:(Y2\:-\:Y1)\:÷\:(X2\:-X1)} [/tex]
[tex] \mathsf\purple{m\:=\:(-4\:-0)\:÷\:(0\:-\:5)} [/tex]
[tex] \mathsf\purple{( \frac{4}{5})} [/tex]
[tex] \mathcal\blue{METHOD\:3} [/tex]
[tex] \mathsf\purple{m\:=\:rise\:÷\:run} [/tex]
[tex] \mathsf\purple{m\:=\:( \frac{4}{5})} [/tex]
[tex] \mathbb\pink{NOTE:} [/tex]
The difference between the y-coordinates of the two points is called the rise. The difference between the x-coordinates of the same two points is called the run. The slope can be calculated by dividing the rise by run.What is 80 percent of 160?
Step-by-step explanation:
[tex] = \frac{80}{100} \times 160 \\ [/tex]
[tex] = \frac{12800}{100} [/tex]
= 128
Directions: Identify the binomial factors of the following trinomials.
1. x2 + 14x + 13
2. x2 + 7x + 12
3. x2 + 8x + 15
4. x2 + 8x + 12
5. x2 + 7x + 10
6. x2 + 5x + 6
7. x2 + 5x + 4
8. x2 + 10x + 21
9. x2 + 10x + 16
10. x2 + 6x + 9
11. x2 + 9x + 20
12. x2 + 9x + 14
13. x2 + 13x + 42
14. x2 + 9x + 18
15. x2 + 17x + 70
(Remember, the factors of the last term that equal the addends of the second term.)
Answer:
1. x= -1 & x= -13
2. x= -3 & x= -4
3. x= -3 & x= -5
4. x= -6 & x= -2
5. x= -5 & x= -2
8. x= -7 & x= -3
9. x= -8 & x= -2
10. x= -3 & x= -3
11. x= -5 & x= -4
12. x= -2 & x= -2
13. x= -6 & x= -7
14. x= -6 & x= -3
15. x= -10 & x= -7
Can someone explain me the answer and how to solve it
Answer:
The radius is 8.
Step-by-step explanation:
Because OA is a radius and AB is a tangent, Angle A is a right angle. So you can use Pythagorean theorem (shortcut Pythagorean triple)
OA^2 + 15^2 = 17^2
OA^2 + 225 = 289
OA^2 = 64
OA = 8
OA is a radius, the radius = 8
State all integer values of x in the interval (-3, 3] that satisfy the following
inequality:
-3x + 4 > 9
(-3,3] is an interval which means that -3 and 3 are not inclusive of the values of x -5/3.
We have given
-3x+4 > 9
Required values of x.
State the values of x within -3 and 3.
subtract 4 from both sides,
-3x+4-4>9-4
What is the meaning of like terms?like terms are terms that have the same variables and powers. The coefficients do not need to match.
Collect Like Terms
-3x > 5
(-3x)(-1) < 5(-1)
3x < -5
Divide both sides by 3
3x/3 < -5/3
x < -5/3
(-3,3] is an interval which means that -3 and 3 are not inclusive of the values of x is -5/3.
To learn more about the interval visit:
https://brainly.com/question/12221823
#SPJ1
