Answer:
19 miles per hour
Step-by-step explanation:
Help me please I need help in this math
Answer:
Step-by-step explanation:
AB
away fram house
2km 4mins
rate: 1km\minute
BC
away from house
5km 6mins
rate:0.83km\minute
CD
niether
0km 9mins
no rate
DE
toward house
6km 15mins
0.4km\minute
The circumference of a circle is 15.9mm.
Find the length of the radius.
Give your answer rounded to 1 DP.
PLEASE HELP
i will give you brainiest if you can can answer in 3 minutes
Answer:
R = 2.6 mm
Step-by-step explanation:
D = C ÷ π
D = 15.9 ÷ 3.14
D = 5.06
D = 5.1 mm
R = D ÷ 2
R = 5.1 ÷ 2
R = 2.55
R = 2.6 mm
Answer:
r = 2.5 mm
Step-by-step explanation:
The circumference of a circle has the following formula.
circumference = 2πr
where
r = radius
π = 3.14
circumference = 15.9 mm
circumference = 2πr
15.9 = 2 × 3.14 × r
15.9 = 6.28 r
divide both sides by 6.28
r = 15.9/6.28
r = 2.53184713376
Rounding to 1 decimal place
r = 2.5 mm
the slope of the line below is - 5/7. write the point-slope equation of the line using the coordinates of the labeled point.
Answer:
[tex]y -2=\frac{-5}{7} (x-6)[/tex]
Step-by-step explanation:
Point-slope : [tex]y-y_1=m(x-x_1)[/tex]
m = slope [tex](\frac{-5}{7} )[/tex]
[tex]y_1 = 2\\x_1 = 6[/tex]
[tex]y -2=\frac{-5}{7} (x-6)[/tex]
Graph y=2x on the coordinate graph above. Compare the two lines. Does either line represent a proportional relationship? Explain.
Answer:
IDK the other line.
Step-by-step explanation:
y=2x is a proportional relationship because it has a 1:2 ratio, where as the x increases by one point, the y value will constantly increase by 2 points.
The volunteers at the animal shelter are drawing slips of paper from a hat to determine which day each volunteer will clean the litter boxes. When it is Odessa's turn to pull from the hat, there are 2 Wednesday slips, 8 Thursday slips, and 6 Friday slips remaining. What is the probability that Odessa will randomly draw a Wednesday slip?
Answer:
1 / 8
Step-by-step explanation:
There are 2 + 8 + 6 slips in total
There are 2 Wednesday slips.
2 / 16 = 1 / 8
A contractor bought 8.2 ftsquared of sheet metal. She has used 3.5 ftsquared so far and has $141 worth of sheet metal remaining. The equation 8.2xminus3.5xequals141 represents how much sheet metal is remaining and the cost of the remaining amount. How much does sheet metal cost per square foot?
Answer:
The cost of a sheet metal per square foot is $30
Step-by-step explanation:
Given
Size of Sheet Metal = 8.2ft squared
Used Sheet Metal = 3.5ft squared
Worth of leftover sheet = $141
Equation: [tex]8.2x - 3.5x = 141[/tex]
Required
Find the cost per square foot of the sheet metal
Solving for x in the above equation will give the cost per square foot of the sheet metal.
[tex]8.2x - 3.5x = 141[/tex]
[tex]4.7x = 141[/tex]
Divide both sides by 4.7
[tex]\frac{4.7x}{4.7} = \frac{141}{4.7}[/tex]
[tex]x = \frac{141}{4.7}[/tex]
[tex]x = 30[/tex]
Hence, the cost of a sheet metal per square foot is $30
PLEASEEE ANSWER I NEED HELP NOW!!!!
Find the probability of
1: choosing a yellow marble from a bag that contains 6 yellow marbles and 8 red marbles,
and
2: flipping a coin and it showing heads.
Answer:
1: [tex]\frac{6}{14}[/tex]
2: [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
1: the number of yellow marbles is 6
the number of marbles in the bag is 14
the probability of yellow marbles out of the bag is
number of yellow marbles over number of marbles in the bag
2: there are only two sides
one head and one tail
head over tail is [tex]\frac{1}{2}[/tex]
A number is chosen at random from 1 to 10. Find the probability of selecting a 6 or greater.
Answer:
1/2
Step-by-step explanation:
p(event) = (number of desired outcomes)/(total number of outcomes)
How many different outcomes are there? You can choose 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10, so the total number of possible outcomes is 10.
How many outcomes are desired. The desired outcomes are any outcomes with a number 6 or higher. Which numbers are 6 or higher? 6, 7, 8, 9, 10. There are 5 outcomes that are 6 or higher, so there are 5 desired outcomes.
p(event) = (number of desired outcomes)/(total number of outcomes)
p(event) = 5/10 = 1/2
Answer: 1/2
Tristen is building 3 trophies using Legos. He needs 324 total Legos. Tristen uses 220 Legos for the largest trophy and 135 Legos for the smallest trophy. How many Legos will he use to build the final trophy
Answer: 166
Step-by-step explanation:
Number of trophies = 3
Total Legos required for all trophies = 324
Number of Legos for largest trophy(A) = 220
Number of Legos for smallest trophy(B) = 135
Number of Legos required for final trophy(C)
=?
Total Legos = [Number of Legos for largest trophy(A) + Number of Legos for smallest trophy(B) + Number of Legos required for final trophy(C)]
324 = 220 +135 + C
324 = 355 + C
324 - 355 = C
-31 = C
135 + 31 = 166
Answer:
614 legos
Hope this helps.....
-4-2/3x= -6 by adding 4 to both sides
Answer:
Yes
Step-by-step explanation:
You have to add 4 on both sides to get X by itself. Then, you solve for X by multiplying the Denominator.
A sports ball has a diameter of 27 cm. Find the volume of the ball.
Answer:
10,305.99 cm^3
Step-by-step explanation:
V=4/3πr^3=4/3·π·13.5^3≈10305.9947
Answer:
523.5988in³
Step-by-step explanation:
input Data :
Length = 5 in
Objective :
Find what is volume of the sphere for given input data?
Formula :
Volume =
4πr3
3
Solution :
Volume =
4 x 3.1416 x 53
3
=
4 x 3.1416 x 125
3
=
1570.7963
3
Volume = 523.5988 in³
PLEASE HELP!! thank you
Answer:
100^2
Step-by-step explanation:
I believe it is 100 because one square is 10 times 5 which equals 50 since A=bh. If we multiply 50 times 2 or do the same for the other square and add the two areas together. We got 100^2.
PLZ MARK BRAINLIEST!!!
please help with part b
Answer:
161391
Step-by-step explanation:
138000 x 16.95/100 = 23391
138000 + 23391 = 161391
is their any identities like this:( a - b - c)²
PLEASE ANSWER THIS QUESTION I WILL MAKE U AS BRAINLIST JUST SAY YES OR NO
combine the like terms to simplify the expression 2x+3y-5x+4y-8z
Answer:
7y-3x-8z
Step-by-step explanation:
(3y+4y)+(2x-5x)-8z
7y+(2x-5x)-8z
7y-3x-8z
a man walks around a field once.
a runner runs around the field 6 times in the same time
the walker walks at 3m/s
calculate the speed of the runner.
Answer:
I hope it's correct.
Step-by-step explanation:
1 time=3m/s
6times(the runner is faster)
It will be, 6/1×3=18m/s
A sandwich shop is ordering apples and grapes to make chicken salad.Apples cost $2.19 per pound and grapes cost $2.60 per pound. If they ordered a total of 20 pounds of apples and grapes and pair $35.80. How many pounds of grapes did they order?
Answer:
Grapes=19.51
Step-by-step explanation:
Apples=$2.19 per pound
Grapes=$2.60 per pound
Apples+Grapes=20 pounds
A+G=20
A=20-G
Equation is
PaA+PgG=35.80
2.19A+2.60G=35.80
2.19(20-G)+2.60G=35.80
43.8-2.19G+2.60G=35.80
43.8-0.41G=35.80
-0.41G=35.80-43.8
-0.41G=-8
Divide both sides by 0.41
G=19.51 pounds
Recall
A=20-G
A=20-19.51
A=0.49 pounds
They ordered 19.51 pounds of grapes.
let us say they ordered 'x' pound of grapes.
so, the quantity of apples ordered = (20-x) pound
it is given that
cost of the apple= $2.19 per pound
cost of the grapes= $2.60 per pound
according to the given scenario,
total cost = $35.80
What will be the total cost?the total cost will be the sum of the cost of apples as well as grapes.
2.60x + 2.19(20-x) =35.80
-0.41x = 8
x = -19.51 pounds
therefore, they ordered 19.51 pounds of grapes.
to get more about word problems refer to the link,
https://brainly.com/question/13818690
Find the missing height, when you know the area of the rectangle 9+9+?+?=126
Answer:
54
Step-by-step explanation:
First take
9 + 9 = 18
Then,
126 - 18 = 108
Then,
108 / 2 = 54
Which is the height
Hope this helps you. :)
Have a good day!
This formula counts for both height and width when you have the area.
What is the volume of each cube?
a) 10 cm
b) 8.5 cm
Answer:
a) V = 1000 cm³
b) V = 614.125 cm³
Step-by-step explanation:
a) side length a = 10 cm
face diagonal f = 14.142135623731 cm
solid diagonal d = 17.320508075689 cm
surface area S = 600 cm²
volume V = 1000 cm³
___________________________
b) side length a = 8.5 cm
face diagonal f = 12.020815280171 cm
solid diagonal d = 14.722431864335 cm
surface area S = 433.5 cm²
volume V = 614.125 cm³
_____________________________
Formula: V=a³
Which equation is equivalent to the following?
2x^2 - 12x + 2y^2 + 20y - 28 = 0
1) 2(x-3)^2 +2( y+5)^2=44
2) 2(x-3)^2+2(y+5)^2=60
3) 2(x-3)^2+2(y+5)^2=62
4) 2(x-3)^2+2(y+5)^2=96
Answer:
Therefore, the equivalent expression is: 2*(x - 3)² + 2*(y + 5)² = 96. Number 4)
Step-by-step explanation:
In order to find the equivalent expression, lets first factor the common term, which is "2":
2*(x² - 6*x + y² + 10 *y - 14) = 0
If we look closely to the terms that have "x" and "y", they both have a square structure, therefore we can complete the squares by manipulating the indepent term. Let's first check the term with "x" and "y":
x² - 6*x + c² = x² - 2*3*x + c² = (x - c)²
y² + 10*y + d² = y² + 2*5*y + d²= (y + d)²
In order to complete the squares, c must be equal to 3 and d must be equal to 5. We can arrange that, by summing and subtracting these numbers squared, we have:
2*(x² - 6*x + 3² + y² + 10 *y +5² - 14 - 3² - 5²) = 0
2*(x² - 6*x + 3²) + 2*(y² + 10*y + 5²) -28 - 18 - 50 = 0
2*(x - 3)² + 2*(y + 5)² = 96
Therefore, the equivalent expression is: 2*(x - 3)² + 2*(y + 5)² = 96
Answer:
2*(x - 3)² + 2*(y + 5)² = 96.
Step-by-step explanation:
Give two original examples of finite set.
Answer:
The set of all persons in America is a finite set.
The set of all birds in California is a finite set.
Step-by-step explanation: hope those help
La sociedad de ex alumnos de una escuela organizó el año pasado una posada a la que asistieron 420 personas. A la posada de este año asistieron 567: ¿En qué porcentaje aumentó la asistencia?
Answer:
??? english
Step-by-step explanation:
Two variables are always sometimes I never) correlated.
4. In the U.S., from 2004 - 2015, the correlation coefficient for the relationship
between the size of a cell phone data plan, x, and the number of text
messages sent, y, is r = +0.97. Describe the relationship between the data
plan size and the number of text messages sent in the U.S.
Answer:
There is strong positive correlation between the size of a cell phone data plan and the number of text messages sent in the U.S.
Step-by-step explanation:
The correlation coefficient is a statistical degree that computes the strength of the linear relationship amid the relative movements of the two variables (i.e. dependent and independent). The correlation coefficient value ranges from -1 to +1.
Positive correlation is an association amid two variables in which both variables change in the same direction.
A positive correlation occurs when one variable declines as the other variable declines, or one variable escalates while the other escalates.
The closer the the correlation coefficient value gets to +1 or -1, the stronger relation becomes.
The correlation coefficient for the relationship between the size of a cell phone data plan, x, and the number of text messages sent, y, is:
r = +0.97
The correlation coefficient is closer to +1.
Thus, there is strong positive correlation between the size of a cell phone data plan and the number of text messages sent in the U.S.
Find GH.
picture is attached
Answer: 4.6
Step-by-step explanation:
GH is equal to 4.6 since it is congruent to JH. GJ is one line, which makes angles GKH and JKH supplementary angles. Since angle GKH = 90, angle JKH must also equal 90, making these triangles similar. However, if you wish to see it done out mathematically, the following explanation is there:
[tex]a^{2} + b^{2} = c^{2}[/tex]
3.6^2 + HK^2 = 4.6^2
HK^2 = 4.6^2 - 3.6^2
HK^2 = 8.2
HK = 2.86
HK^2 + GK^2 = GH^2
8.2 + 12.96 = GH^2
GH = 4.6
what is the answer to 23.5% of 120?
Answer: the answer is
Step-by-step explanation:
Answer:
2791.8
Step-by-step explanation:
23.5×120=2820
2820÷100=28.2
2820-28.2=2791.8
An experiment consists of randomly drawing a cube from a bag containing three red and two blue cubes.
2. List the probability of each outcome in the sample space.
3.
Is the probability of selecting a red cube equal to the probability of selecting a blue cube? Explain.
Answer: 2)The probability of drawing a red cube is 3/5 and the probability of drawing a blue cube us 2/5.
3) No the probability of selecting a red cube is not equal to probability of selecting a blue cube because the outcomes 3/5 and 2/5 are not equal.
Step-by-step explanation:
The probability of each outcome in the sample space is:
Probability of drawing a red cube = 3/5
Probability of drawing a blue cube = 2/5
No, the probability of selecting a red cube is not equal to the probability of selecting a blue cube.
What is probability?It is the chance of an event to occur from a total number of outcomes.
The formula for probability is given as:
Probability = Number of required event / Total number of outcomes.
Example:
The probability of getting a head in tossing a coin.
P(H) = 1/2
We have,
The sample space of this experiment consists of the possible outcomes of randomly drawing a cube from the bag.
There are two possible outcomes: either a red cube is drawn or a blue cube is drawn.
So, the probability of each outcome in the sample space is:
Probability of drawing a red cube = 3/5
Probability of drawing a blue cube = 2/5
No, the probability of selecting a red cube is not equal to the probability of selecting a blue cube.
This is because there are more red cubes in the bag than blue cubes, so the probability of drawing a red cube is higher than the probability of drawing a blue cube.
Specifically, the probability of drawing a red cube is 3/5, which is greater than the probability of drawing a blue cube, which is 2/5.
Thus,
The probability of each outcome in the sample space is:
Probability of drawing a red cube = 3/5
Probability of drawing a blue cube = 2/5
No, the probability of selecting a red cube is not equal to the probability of selecting a blue cube.
Learn more about probability here:
https://brainly.com/question/14099682
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Everything thanksss.
Answer:
433
Step-by-step explanation:
Break apart into 3 hundreds, 1 ten, and 2 ones.
745 - 300 = 445
445 - 10 = 435
435 - 2 = 433
Answer:
[3] [2] [300] [445] [445] [435] [435] [2] [433]
Step-by-step explanation:
3 hundreds 1 ten 2 ones
745-300 = 445
445 -10 = 435
435 -2 = 433
what are 2 binomials that are factors of this trinomial? x^2-x-20
Answer:
(x-5) (x+4)
Step-by-step explanation:
x^2-x-20
What two terms multiply to -20 and add to -1
-5*4 = -20
-5+4 = -1
(x-5) (x+4)
Answer:
( x - 5 )( x + 4 )
Step-by-step explanation:
Find the midpoint of the line segment joining (4, 8) and (–2, –6). A. (2, –2) B. (2, 2) C. (–1, –1) D. (1, 1)
Answer:
D
Step-by-step explanation:
Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is
[ [tex]\frac{1}{2}[/tex](x₁ + x₂ ), [tex]\frac{1}{2}[/tex](y₁ + y₂ ) ]
Thus for the given points
midpoint = [ 0.5(4 - 2), 0.5(8 - 6) ] = (1, 1 ) → D
Mr. Whittaker’s science class uses tide gauges to measure annual variations in water levels at different parts of a river, and then compares those variations to the average annual trend.
Matea recorded that the water level in one part of the river fell 1.05 millimeters per year for 2.48 years.
Which number represents the rate at which the water level fell? -1.05mm/year
Which number should the rate be multiplied by to find the total variation in water level?
2.48 years
that's the correct answer ^
This data will be compared to the average annual trend, which shows the water level rising 1.8 mm/year.
Which number represents the rate at which the water level fell?
Which number should the rate be multiplied by to find the total variation in water level?
Answer:
a) Which number represents the rate at which the water level fell? -1.05mm/year
b) Which number should the rate be multiplied by to find the total variation in water level?
2.48 years
Step-by-step explanation:
Total variation in water level is calculated as the rate at which the water level fell multiplied by number of years are which the water level fell.
Mathematically = Rate at which the water level fell(mm/year) × number of years are which the water level fell (years).
Total variation in water levels can be caused by changes in climate conditions or by human activity.
Hence, for the question above,
rate at which the water level fell is
given as -1.05mm/year and the number that the rate be multiplied by to find the total variation in water level is 2.48 years.
Answer:
Which number represents the rate at which the water level fell?
✔ -1.05 mm/year
Which number should the rate be multiplied by to find the total variation in water level?
✔ 2.48 years
Step-by-step explanation:
I did it on edg and got it right
can I have some brainiest