Answer: -5
Step-by-step explanation:
-5(x-5)=2(-4x+5)
-5x + 25 = -8x +10
3x +25 = 10 (add 8 from both sides)
3x = -15 (subtract 25 from both sides)
x = -5 (divide 3 from both sides)
Dibuja una función continua para todos los valores de x excepto en x = -2 y x = 4, y que corte a los ejes en (0,4), (2,0) y (6,0).
The perimeter of the scalene triangle is 54.6 cm.
Step-by-step explanation:
I put my maximum effort to answer this question
Answer:
34.8 cm+b = 54.6 cm
An experiment was conducted to study the use of 95% ethanol versus 20% bleach as a disinfectant in removing contamination when culturing plant tissues. The experiment was repeated 15 times with each disinfectant, using cuttings of eggplant tissue. The observation reported was the number of uncontaminated eggplant cuttings after a 4-week storage.
Disinfectant 95% Ethanol 20% Bleach
Mean 3.74 4.86
Variance 2.78097 0.17142
n 15 15
Pooled variance 1.47620
1. Are you willing to assume that the underlying variances are equal?
a. Yes
b. No
2. Using the information from part (A), are you willing to conclude that there is a significant difference in the mean numbers of uncontaminated eggplants for the two disinfectants tested?
Answer:
a. Yes
Step-by-step explanation:
The term common variance means that each population has the same variance.
If σ²=σ₁²=σ₂² but unknown then the unbiased pooled or combined estimate of the common variance σ² is calculated.
In the given problem the pooled variance is calculated .
Therefore we assume that that the underlying variances are equal.
Using Student's t distribution
The given data is
Mean 3.74 4.86
Variance 2.78097 0.17142
n 15 15
Pooled variance 1.47620
t= x`1- x`2/ Sp √1/n1+ 1/n2
t = 3.74-4.86/ 1.47620 √1/15+ 1/15
t= -1.12/ 0.539
t= -2.0779
Taking the significance level ∝= 0.05 the
Value of the critical region is t≤ - t∝/2 and t≥ t∝/2 = ±2.048 for
Degrees of freedom = n1+n2- 2= 28
Hence the calculated value of t -2.0779 falls in the critical region therefore null hypothesis is rejected and and it is concluded that the means are not equal.
What is the least common denominator for this equation?
A. 9
B. 36
C. 36c
D. 12c
Answer:
B
Step-by-step explanation:
Though it is not obvious, the c belongs in the numberator, not the denominator.
So C and D are both wrong.
9: 3 * 3
3: 3
4:2 * 2
Lowest common denominator = 2 * 2 * 3 * 3
Lowest common denominator = 36
B
Area of traingle and rectangle
More coming!!
Step-by-step explanation:
1.
[tex]a = \frac{1}{2} b \times h \\ \frac{1}{2} \times 8 \times 7 \\ a = 4 \times 7 = 28 {cm}^{2} [/tex]
2.
[tex]a = \frac{1}{2} b \times h \\ a = \frac{1}{2} \times 10 \times 10 \\ a = 10 \times 5 = 50 {ft}^{2} [/tex]
2(x + 1) > 10
Help pleaseeeeeeee
Answer:
x > 4
Step-by-step explanation:
2(x + 1) > 10
x + 1 > 5
x > 4
Susan has 3 pairs of shorts, 5 shirts, and 2 pairs of shoes to take to camp. If she wears a pair of shorts, a shirt and pair of shoes each day, how many different outfit combinations does Susan have to choose from?
Answer:
30
Step-by-step explanation:
Noah picks a card at random from a stack that has cards numbered 5 through 20. List the sample space and tell how many outcomes there are.
Answer:
6
Step-by-step explanation:
6
For what values of m does the graph of y = mx2 – 5x – 2 have no x-intercepts?
Answer:
If the 'm' u r trying to say is slope of line on the graph then it will be parallel to x axis
PLEASE DONT SEND LINKS OR I WILL REPORT! Emily buys meat for a charity event in her community. Chicken costs 4 AED per kg and beef burger 3 AED per kg. How much will she spend on 3.6 kg of chicken and 2.2 kg of beef burger?
Answer:
21 AED
Step-by-step explanation:
W know the cost of each kind of meat
Chicken = 4 AED
Beef = 3 AED
We also know how much of each we will be buying
Chicken = 3.6 kg
Beef = 2.2 kg
Multiply each price of meat by its respective weight, then add the products together for you final answer.
4(3.6) + 3(2.2) = 21
right triangle with x, 29, and 18 degrees
Answer:
we can't answer this bc u dont show which side is whicj
Step-by-step explanation:
but u need to use sin, cos, or tan
Find the volume of a basketball with a diameter of 8.5 inches. Round your answer to the nearest hundredth.
Answer:
102.35
8.5 is the diameter and we need the radius which is 4.25. 4.25 ^ 3 is 76.75625 and times that by 4 gives us 307.0625 and divide that by 3 gives me 102.35 rounded to the nearest hundrenth
Ten students each attempted 10 free throws. The list shows how many free throws each student made. What is the mean of free throws made? *
Answer:
why isn't anybody answering. I guess ill have too.
Step-by-step explanation:
Ok.
Can someone help me with some questions please!
Answer:
i would say around 61.54%
Step-by-step explanation:
maybe simplify it
I feel like something is wrong, is there?
Answer:
# 4 (-5,2) should be placed one more place to the right
#5 (5,1) should be moved once up
Step-by-step explanation:
:)
the following box plot shows the number of years during which 20 schools have participated in an inter-school swimming meet at least how many schools have participated for 6 years or more?
A: 4
B: 5
C: 10
D: 11
Answer:
4 schools
Step-by-step explanation:
Based on the box plot you have given above, the answer would be 20% of the total schools participated for 6 years or more. This is because the part of the box plot wherein it hits 6 years and above is 20%. Thus, if there are 20 schools, then the 20% of it would be 4. In conclusion, there are 4 schools that participated for 6 years or more.
If the annual property tax is $2400.What is the monthly property tax?
Answer:
$200.00
Step-by-step explanation:
$2400÷12=$200.
11(-2x + 3) show work please
Answer:
11×-2x= -22
11×3= 33
-22+33=11
11x
brainiest please
Move words to the blanks to make the sentence true. Volume can be measured by counting the number of unit In a figure. cubes squares two-dimensional three-dimensional
Volume can be measured by counting the number of unit cubic in a
three-dimensional figure.
what is Volume?The amount of space occupied by a three-dimensional figure as measured in cubic units.
Volume is the three- dimensional property, its basic units is always in cube.
Volume generally told us how much capacity can handle which we express it with the help of cubic units.
Volume doesn't wok on two dimensional bodies as well as the square is used for finding the area of the figure.
Thus, Volume can be measured by counting the number of unit cubic in a
three-dimensional figure.
Learn more about volume here:
brainly.com/question/16134180
#SPJ2
Write the word sentence as an inequality. Then solve the inequality.
Three less than a number x is more than 15.
An inequality that represents this word sentence is
The solution is
I NEED HELP ASAP
two pizza delivery drivers compared the mean numbers of deliveries they completed in one day
what statement about the data is true?
Answer:
The Answer is B.
took test
Please answer CORRECTLY for brainliest guarantee. If your answer is not correct or does not have a explanation I will report you!
Answer:
c. 45.34ft
Step-by-step explanation:
When leg one of the triangle is 15ft and leg two is 17 ft you would take 17^2 + 15^2 and then you find the square root of that (514) to get the hypotenuse of the triangle. After that you multiply by two to account for the 2/2 sqaure foot per each unit
Round each number to the nearest thousand.
6,029
6,000
8,104
2,90
4,978
978
1,032
Answer:
6.029
6
8.104
2.9 or .29
4.978
.978
1.032
Step-by-step explanation:
Answer:
6029=6000
6000=600
8104=8000
290=0
4978=5000
978=1000
1032=1000
Which of the following is the correct point-slope equation for the line that passes through the point (2, -5) and is parallel to the line given by y = -4x + 25?
Answer:
(-4 - (-2))/(2 - (-2)) = -2/4 = -1/2
Step-by-step explanation:
Pick either point.
y - (-4) = (-1/2)(x - 2)
y + 4 = (-1/2)x + 1
y = (-1/2)x - 3
Please like, rate and please give me Brinliest Please and Thank you!
The sides of a quadrilateral are in ratio 1:2:3:4 if the perimeter is 40cm. find the length of each sides
What is the median of the following data values?
108, 102, 43, 100, 22
O A. 80
O B. 95
O C. 100
O D. 75
Answer:
100
Step-by-step explanation:
You're correct :) good job
question in the picture
Answer:
70 degrees
Step-by-step explanation:
corresponding angle of a triangle
Yoshi is make blueberrie muffins, He needs, 1 1/4 cups of blubeerries for one batch. How many cups of bueberries does he need to make 2 1/2 batches?
Answer:
3 1/8 cups of blueberries
Step-by-step explanation:
1 1/4 x 2 1/2 = 5/4 x 5/2 = 25/8 = 3 1/8
NEED SOME HELP HERE!!
Neil Down is doing some remodeling and needs to cut a triangular piece of wood such that the diagonal is 10 feet long, and the sides of the triangle are in a ratio 3:4. How long should each side be?
Answer:
6 and 8
Step-by-step explanation:
Pythagorean theorem: a² + b² = c²
Given this,
(3x)² + (4x)² = 10²
9x² + 16x² = 100
25x² = 100
Divide both sides by 25
x² = 4
x = 2
Substitute this into 3x and 4x.
3x = 3 * 2 = 6
4x = 4 * 2 = 8
Thus, the answer is 6 and 8
ricky's baseball team has a record of 15 wins and 6 losses. write two ratios in simplest form
Wins to losses
[tex]\ \ \sf\longmapsto 15/6=5/2=5:2[/tex]
Losses to wins[tex]\ \ \sf\longmapsto 6/15=2/5=2:5[/tex]