Answer:
8=8
Step-by-step explanation:
2(x + 4) = 4x + 3 - 2x + 5
2x+8=2x+8
8=8
Helppp please! Find the value of cos X
Answer:
3/5
Step-by-step explanation:
[tex]\cos X= \frac{XY}{ZX} = \frac{30}{50} = \frac{3}{5} \\ [/tex]
-4|2w + 61 = -32. What’s the answer
Answer:
46 1/2
Step-by-step explanation:
hope this helps
find the measure of the angle marked with a? Using inverse trig functions. Round your answer to the nearest degree. part 3
Answer:
The unknown angle =
27°
Note :
SOH = Sin angle = Opposite/hypotenuse
CAH = Cos angle = Adjacent/Hypotenuse
TOA = Tan angle = Opposite/Adjacent
Answer:
[tex]\theta \approx 27.5\º[/tex]
Step-by-step explanation:
Once
[tex]$\sin(\theta) = \dfrac{\text{Opposite}}{\text{hypotenuse}} =\frac{12}{26}=\frac{6}{13} $[/tex]
And
[tex]\arcsin \left(\dfrac{6}{13} \right)=\theta[/tex]
[tex]\theta \approx 27.5\º[/tex]
Solve the system of equations graphically.3x + 2y = 4−x + 3y = −5
Answer: (2,-1).
Step-by-step explanation:
The given system of equations is
[tex]3x+2y=4[/tex]
[tex]-x+3y=-5[/tex]
For [tex]3x+2y=4[/tex], table of values is
x : 0 1 2
y : 2 0.5 -1
For [tex]-x+3y=-5[/tex], table of values is
x : -1 2 5
y : -2 -1 0
Plot these points on a coordinate plane and connect them be straight lines as shown below.
Form the graph it is clear that the lines intersect each other at (2,-1).
Therefore, the solution of given system of equations is (2,-1).
which of the following is not a rate
a. 3miles / 5 hours
b. $15/ 3 hours
c. 5 inches / 20 inches
d. 12 pencils / 1 box
What are graphs used for? Select all that apply.
analyzing what data means
forming experiments
diagram showing the correlation between two quantities
predicting outcomes and patterns
thanks :))
Two groups collect litter along the side of a road. It takes each group 5 minutes to clean up a 200-yard section. How long does it take to clean up 2 miles?
It takes__minutes to clean up 2 miles.
HELPPPP!!!!!!!!!!!!!
Each group can clean 200 ÷ 5 = 40 yards each minute, so together the two groups can clean 80 yards each minute. So, it takes 3520 ÷ 80 = 44 minutes to clean 2 miles.
The graph shows the distribution of weights (in pounds) of male duck-billed platypuses. The distribution is approximately Normal, with a mean of 3.75 pounds and a standard deviation of 0.52 pounds. What percent of male duck-billed platypuses have a weight of between 2.71 and 4.79 pounds?
Answer:
Choice B) The distribution is approximately Normal, with a mean of 3.75 pounds and a standard deviation of 0.52 pounds.
Step-by-step explanation:
Using the normal distribution principle, the percentage with weight between 2.71 and 4.79 is 95.45%
Using the Zscore relation :
Zscore = (X - μ) ÷ σFor X = 2.71 :
Zscore = (2.71 - 3.75) ÷ 0.52 = - 2
Using a normal distribution table :
P(Z < - 2) = 0.02275
For X = 4.79 :
Zscore = (4.79 - 3.75) ÷ 0.52 = 2
Using a normal distribution table :
P(Z < 2) = 0.97725
P(Z < 2) - P(Z < - 2) = 0.97725 - 0.02275 = 0.9545
Therefore, the required percentage is 95.45%
Learn more : https://brainly.com/question/15139545
Solve for x: 2/5 = x/24
Answer:
x=9.6
Step-by-step explanation:
We are given the proportion:
[tex]\frac{2}{5}=\frac{x}{24}[/tex]
We are asked to solve for x. Therefore, we must isolate x on one side of the proportion.
x is being divided by 24. The inverse of division is multiplication. Multiply both sides of the proportion by 24.
[tex]24*\frac{2}{5}=\frac{x}{24}*24[/tex]
[tex]24*\frac{2}{5}=z[/tex]
[tex]24*0.4=x[/tex]
[tex]9.6=x[/tex]
[tex]x=9.6[/tex]
x is equal to 9.6 The complete proportion is [tex]\frac{2}{5}=\frac{9.6}{24}[/tex]
solve 6x^3-7x^2-5x=0
Factor the x out first:
x(6x^2 - 7x - 5) = 0
Then factor the quadratic expression in the parenthesis:
x(2x + 1)(3x - 5) = 0
x = -1/2, 0, 5/3
Raise the fraction to higher terms indicated 9/20 to fortieths
Answer:
18/40
Step-by-step explanation:
You multiply the denominator by 2 and the numerator by 2 to get 18/40
Math help! This is the only picture provided! Please find the answer!
Answer:
girl I need help with this too
Step-by-step explanation:
we both do
Answer this for me ........
Paul won 128 super bouncy balls playing
horseshoes at the county fair. At school he
gave four to every student in his math class.
He only has 4 remaining. How many
students are in his class?
The graph shows a linear relationship between the height and years of a plant’s growth. Find the rate of change. Select all that apply.
1. The rate of change of a linear function is always the same.
2. The rate of change of a linear function increases as the input increases.
3. The rate of change from 2 years to 4 years on the graph is 1.5 inches per year.
4. The rate of change from 0 years to 6 years on the graph is 1.5 inches per year.
Answer:
ACD
Step-by-step explanation:
Got it right on Edge.
Answer: A, C, D
Step-by-step explanation: On Edgenuity!!!!!!!!
8x = 32
Last question please help
Answer:
x equals 4.
Step-by-step explanation:
32 divided by 8 equals 4. I'm not sure there's any other evidence lol :)
Determine if each graph represents a direct proportion or not.
Answer:
yes each paragrpah represents a direct proportion.
Step-by-step explanation:
please follow me and mark me as brainliest. please.
need help finding the answer
Answer:
I can help you slove your problem
Cookies cost $3 each, and candies cost $2 each. Tim has
$25. Which inequality represents the number of cookies, x,
and the number of candies, y, that Tim can buy?
Answer:
8x < 12y
Step-by-step explanation:
If you divide 25 by 3, you get 8.3333... (the threes go on forever), which you can round to 8, because little Timmy isn't going to buy .3 of a cookie. If you divide 25 by 2, you get 12.5, which you round down to 12. I know you normally don't round 5 down, but we are talking about food here.
Therefore, Tim can buy less cookies than candies. He can buy 8 cookies, and 12 candies.
Either way, Timmy's gonna be fat.
6. Find LCM (10,14,63).
Answer:
630 is the LCM
Step-by-step explanation:
You have to list all the multiples of each number till you find the lowest same value one which in this case it's 630.
Multiples of 10:
10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, 410, 420, 430, 440, 450, 460, 470, 480, 490, 500, 510, 520, 530, 540, 550, 560, 570, 580, 590, 600, 610, 620, 630, 640, 650
Multiples of 14:
14, 28, 42, 56, 70, 84, 98, 112, 126, 140, 154, 168, 182, 196, 210, 224, 238, 252, 266, 280, 294, 308, 322, 336, 350, 364, 378, 392, 406, 420, 434, 448, 462, 476, 490, 504, 518, 532, 546, 560, 574, 588, 602, 616, 630, 644, 658
Multiples of 63:
63, 126, 189, 252, 315, 378, 441, 504, 567, 630, 693, 756
In the diagram below, DE is parallel to XY. What is the value of x?
ca
859
X
X
y
A. 85
o
B. 75
C. 125
D. 105
Answer:
A. 85
Step-by-step explanation:
Since DE and XY are parallel, this means that the given angle and angle x are alternate Angles. According to the law of alternate Angles, this means that they are equal. It also makes sense as the angle x is the same angle as the angle directly opposite angle 85. This is because they are on the same line across parallel lines. This also means they are equal because vertically opposite angles are always equal.
Therefore x =85
Hope this helped!
lol.Sorry I have to hurry up so my hand writing is bad i hope u can read it.
Which is a counterexample for the conditional statement?
If two positive numbers are multiplied together, then the product will be greater than both of the two positive
numbers.
O2 x 4
O 5x(-3)
x
o įx9
Mark this and return
Save and Exit
Next
Submit
Answer:
I think its 2/3 x 9
Step-by-step explanation:
My apologies if that isn't correct!
The counterexample for the conditional statement "If two positive numbers are multiplied together, then the product will be greater than both of the two positive numbers" will be 2/3 x 9.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.
We can utilize multiplication for a number of common tasks, such as figuring out how much it will cost to buy several identical things, calculating sales tax, and figuring out area and other geometric measurements.
It is given if the two positive numbers are multiplied together, then the product will be greater than both of the two positive numbers.
If the two positive numbers are x and y from the given condition,
xy > x
xy> y
The two numbers are obtained as 2/3 and 9.
=2/3 x 9
=6
Thus, the counterexample for the conditional statement "If two positive numbers are multiplied together, then the product will be greater than both of the two positive numbers" will be 2/3 x 9.
Learn more about the arithmetic operation here:
brainly.com/question/20595275
#SPJ2
The table shows the portions of a family budget that are spent on several expenses.
Housing: 1/4
Food: 1/12
Automobiles: 1/15
Recreations: 1/40
a. How many times more is the expense for housing than for automobiles?
b. How many times more is the expense for food than for recreation?
c. The expense for automobile fuel is 1/60 of the total expenses. What fraction of the automobile expense is spent on fuel?
Answer:
a. 3,75b. 20c. 1/4Step-by-step explanation:
Expenses.Housing: 1/4 Food: 1/12 Automobiles: 1/15 Recreations: 1/40Questionsa. How many times more is the expense for housing than for automobiles?
1/4 : 1/15 = 1/4*15 = 15/4 = 3.75 timesb. How many times more is the expense for food than for recreation?
1/2 : 1/40 = 1/2 * 40 = 40/2 = 20 timesc. The expense for automobile fuel is 1/60 of the total expenses. What fraction of the automobile expense is spent on fuel?
1/60 : 1/15 = 1/60*15 = 15/60 = 1/42(4+3x)=74 solve this and show work please help!
Answer:
x=11
Step-by-step explanation: ( not good at explaining) Hope this helps
Divide both sides of the equation by 2
4+3x=37
Subtract 4
3x=37-4
Subtract 37-4
3x=33
and divide by 3
x=11
Simplify the expression so there is only one power for each base. (3x2)^5/(3^2 x 2^3)
A. 3^2 x 2^3
B. 3^2 x 2^2
C. 3^7 x 2^8
D. 3^3 x 2^2
Answer:
Option D
Step-by-step explanation:
(3×2)^5/(3^2×2^3)
=(3^5)(2^5)/(3^2)(2^3)
=(3^5)/3^2 × (2^5)/(2^3)
=(3^3)×(2^2)
A house shaped like an octagon has a large porch, as shown. What is the area of the house
and the porch?
5 feet
5 feet
5 feet
5 feet
House
10 feet
15 feet
Porch
30 feet
825 square feet
775 square feet
800 square feet
875 square feet
3350
5(4×) is 20 so 20+10=30+15=45+30=75+825=900+775=1675+800=2475+875=3350
solve screen shot attachment EASY
Answer:
x=w/(56+r)
Step-by-step explanation:
19x+rx=-37x+w
19x+rx+37x=w
x(19+37+r)=w
x(56+r)=w
x=w/(56+r)
if anything is unclear, ask freely.
A poultry farmer wishes to estimate the average incubation period (the number of days between a hen laying her egg and the time the egg hatches) for eggs on his farm. He plans to take a sample and make a 98% confidence interval, and would like a margin of error of half a day. It is known that the distribution of incubation lengths has a standard deviation of 1.5 days. How many eggs does he need to sample to create the desired interval
Answer:
49 eggs.
Step-by-step explanation:
The formula for Margin of Error =
z × standard deviation/√number of samples
z = z score of 98% confidence interval = 2.326
Margin of Error = Half a day = 1/2day = 0.5 day
Standard deviation = 1.5 days
Number of samples = number of eggs he needs to sample = unknown.
Imputing these above values into the formula
Margin of Error = z × standard deviation/√number of samples
0.5 = 2.326 × 1.5/√n
Cross Multiply
0.5 × √n = 2.326 × 1.5
√n = 2.326 × 1.5/0.5
√n = 3.489/0.5
√n = 6.978
Square both sides
(√n)² = 6.978²
n = 48.692484
n ≈ Approximately to the nearest whole number = 49
Therefore, the number of eggs he needs to sample to create the desired interval is approximately to the nearest whole number 49 eggs
It takes 42,000 lbs of sand to fill 10 park sandboxes. How much sand will the parks and recreation department need to put in each of the 10 sandboxes?
Solve for x: 3(x + 1) = 2(x - 1)
0-5
O-4
O-2
0-1
Answer: x=-5
Step-by-step explanation: Plug -5 in for x
