Answer:
Step-by-step explanation:
[(4 + 2) - 1] x 3
[6 - 1] x 3
5 x 3
15
WHATS X AND WHY URGENT !!!!!!
4x + 7.8y = 7.85
- 8x - y = -4.75
Answer:
X=.5, y=.75
Step-by-step explanation:
Answer:
x=0.5, y=0.75Step-by-step explanation:
Method : Substitution Method
[tex]\begin{bmatrix}4x+7.8y=7.85\\ -8x-y=-4.75\end{bmatrix}\\\\[/tex]
Isolate in for 4x +7.8y=7.85 and solve
[tex]4x+7.8y=7.85\\\mathrm{Multiply\:both\:sides\:by\:}100\\\\4x\times\:100+7.8y\times\:100=7.85\times\:100\\\\Refine\\400x+780y=785\\\\\mathrm{Subtract\:}780y\mathrm{\:from\:both\:sides}\\400x+780y-780y=785-780y\\\\Simplify\\400x=785-780y\\\\\mathrm{Divide\:both\:sides\:by\:}400\\\frac{400x}{400}=\frac{785}{400}-\frac{780y}{400}\\\\Simplify\\x =\frac{157-156y}{80}\\\\\mathrm{Substitute\:}x=\frac{157-156y}{80}\\\\\begin{bmatrix}-8\times\frac{157-156y}{80}-y=-4.75\end{bmatrix}[/tex]
[tex]Simplify\\\\\begin{bmatrix}\frac{-157+146y}{10}=-4.75\end{bmatrix}\\\\Isolate\:y \:for \:\frac{-157+146y}{10}=-4.75\\\\\mathrm{Multiply\:both\:sides\:by\:}10\\\frac{10\left(-157+146y\right)}{10}=10\left(-4.75\right)\\\\-157+146y=-47.5\\\\-157+146y+157=-47.5+157\\\\Simplify\\146y=109.5\\\\\mathrm{Divide\:both\:sides\:by\:}146\\\frac{146y}{146}=\frac{109.5}{146}\\\\Simplify\\y=0.75\\\\\mathrm{For\:}x=\frac{157-156y}{80}\\\\\mathrm{Substitute\:}y=0.75\\\\x=\frac{157-156\times\:0.75}{80}\\\\x=0.5,\:y=0.75[/tex]
Question 11(Multiple Choice Worth 1 points)
(08.06 MC)
The following data shows the weight, in pounds, of 5 boxes:
3, 1, 2, 2, 2
What is the value of the mean absolute deviation of the weight of the boxes, and what does it represent about the weight of a box?
(A.) 0.4 pound; on average, the weight of a box varies 0.4 pounds from the mean of 2 pounds
(B.) 0.8 pound; on average, the weight of a box varies 0.8 pounds from the mean of 2 pounds
(C.) 0.4 pound; the weight of 50% of the boxes is greater than 0.4 pound
(D.) 0.8 pound; the weight of 50% of the boxes is greater than 0.8 pound
Answer:
c is the answer
Step-by-step explanation:
Answer:
Step-by-step explanation:
First put the numbers from least to greatest: 1, 2, 2, 2, 3 2 is the mean.
Then you determine the distance each data value is from the mean.
1, 2, 2, 2, 3
1, 0, 0, 0, 1
Calculate the mean of the distances: 1 + 0 + 0 + 0 + 1 = 2
Then divide: 2 divided by 5 = 0.4
So your answer is 0.4 pound; on average, the weight of a box varies 0.4 pounds from the mean of 2 pounds
PLEASE HELP!!!! THERE IS A PICTURE SUBMITTED!
Answer:
C: 4 hours
Step-by-step explanation:
Mean = Σxn/n
Σx/n = ((2 × 4) + (3 × 5) + (4 × 6) + (5 × 3) + (6 × 3) + (7 × 0) + (8 × 1))/(4 + 5 + 6 + 3 + 3 + 0 + 1)
Σx/n = 88/22
Σx/n = 4 hours
PLEASE HELP ME PLEASE
Answer:
Solution :-Mean = 75 + 68 + 75 + 92 + 105/5
Mean = 415/5
Mean = 83
None of option is correct
[tex] \\ [/tex]
solve the inequality 3(y+5)>21
Answer:
y > 2
Step-by-step explanation:
1) [tex]3(y+5)>21[/tex]
Divide both sides by 3.
2) [tex]y+5>7[/tex]
Move the constant to the right side and change it's sign.
3) [tex]y>7-5[/tex]
Subtract the numbers.
4) [tex]y>2[/tex]
24. ZABC and ZDEF are linear pairs. Which of the following is true?
a. If m ABC = 2m DEF, then m ABC = 120 and m DEF = 60.
b. If m ABC = m DEF + 40, then m ABC = 140 and m DEF = 40.
c. If m ABC = m DEF - 30, then m ABC = 30 and m DEF = 150.
d. If m ABC = 3m DEF, then m ABC = 130 and m DEF = 60.
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPP PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
303 is the sum of all the numbers, so 303k is the answer
DLMN is a quadrilateral inscribed in a circle. If mÐD = 84° and mÐN = 74°, find mÐL.
9514 1404 393
Answer:
angle L = 106°
Step-by-step explanation:
Opposite angles in an inscribed quadrilateral are supplementary.
∠L = 180° -∠N
∠L = 180° -74° = 106°
answer choices:
A. 42 °
B. 47°
C. 48°
D. 41°
can some one help me please
Answer:
D. 41°
Step-by-step explanation:
[tex](3x + 9) \degree = 132 \degree \\ (vertical \: \angle s) \\ 3x + 9 = 132 \\ 3x = 132 - 9 \\ 3x = 123 \\ x = \frac{123}{3} \\ x = 41 \\ \\ \because m\angle QRS =x\degree \\\therefore m\angle QRS = 41\degree [/tex]
A(5, 23) and B(-2, 2) are two points.
(a) Find the co-ordinates of the midpoint of the line AB.
Answer:
The midpoint of (5,23) and (-2,2) is (3/2,25/2)
hope that helps
Step-by-step explanation:
Stephen opens a savings account with an initial deposit of $300.
Every month, Stephen will deposit an additional $250 into the
account from his paycheck. Which function below shows the total
amount of his deposits for x number of months?
A. y = 300x + 250
B. y = 12x + 550
C. y = x(300 + 250)
D. y = 250x + 300
Please help asap i’ll give brainly it's due in 30 min
Answer:
[tex]2\sqrt{3[/tex]
Step-by-step explanation:
Solve using the tangent formula(real answers only please)
9514 1404 393
Answer:
21.07
Step-by-step explanation:
The tangent ratio is ...
Tan = Opposite/Adjacent
For the given values, this is ...
tan(36°) = x/29
Solving for x, we have ...
x = 29·tan(36°)
x ≈ 21.07
Find the value of 4/81
Answer:
0.04938271605
Step-by-step explanation:
4/81
=0.04938271605
pls mark as brainliest
Answer:
0.04938271605
Step-by-step explanation:
4/81=0.04938271605
=0.05
The total answer by the process of round up
Plss help mart brain list
Answer:
X=14
Step-by-step explanation:
Hope this helps , good luck ^^
5. Find the surface area of the prism.
13 cm
5 cm
4 cm
12 cm
Answer:
162 sq. cm
Step-by-step explanation:
ph+ 2b
13 + 5 + 13 + 5 * 4 + 2 * 12
36 * 4 + 24
144 +24
168
HELP SOMEONE PLZ HELP IM STRUGGLING PLZZ I NEED HELP I WILL MARK BRAINLEST
Answer:
Without any background information on the text such as what the physical environment is and what the economic activities are. I can't really help you.
Select all the following that could
be the dimensions of a rectangular
prism with a volume 60 cubic
centimeters.
Answer:
A ; C ; D
Step-by-step explanation:
Volume of a rectangular prism:
V = l x w x h
1) 5 x 4 x 3 = 60 (ok)
2) 25 x 20 x 15. The result is > 60
3) 5 x 2 x 6 = 60 (ok)
4) 4 x 1 x 15 = 60 (ok)
5) 5 x 8 x 2 = 80
HELP WILL GIVE BRANLIEST!
No links!!
Answer:
32 ftEach base floor tile is 5ft and there's 4 tiles so 5x4=20
Next,there are 4 walls each wall is 3ft 3x4=12
Now you add your answers which is 20+12=32
Hope that helps
ASAP Point A, located at (-3, -3) is translated 6 units up, resulting in the location of point A'. What other transformation would result in the same location for point A'? A reflection in the x-axis A translation of 6 units to the left A reflection in the y-axis A rotation of 180°
~I KNOW ITS NOT A REFLECTION IN THE Y-AXIS
Answer:
(3,3)
Step-by-step explanation:
A reflection of this across the y-axis is (-3,3). A reflection of Point A, (-3,-3), over the x-axis is also (-3,3).
4. What number comes next. Whats my rule?
34,41,. 55,63,
Whats my rule?
(2 Points)
Enter your answer
The angle of elevation from Nathan to a lighthouse is 74°.
If the lighthouse is 112 feet tall, how far is Nathan from the
base of the lighthouse?
Answer:
Nathan is 36.3910059 ft from the base of the lighthouse.
Step-by-step explanation:
So to find the base, you have to find the tan (both legs) of the right triangle that the lighthouse makes. The angle of Nathan to the lighthouse is 74° so to find the distances, you have to do the tan(72) = opp/adj
The opposite is 112, and we have to find the adjacent.
tan(72) = 112/adj
3.07768354 = 112/adj
adj = 112/3.07768354
adj = 36.3910059
What is the volume of the cone?
Use 3.14 for π, and round to the nearest tenth.
Volume =
1 πr2h
3
=
1 ×π×22×7
3
= 29.321531433505 miles3
Are the cylinders similar? Why or why not?
Answer: are cylinders similar to what its not asking so id.kkk
Step-by-step explanation:
Julio has $1026 worth of $10 and $11 stock shares. The number of $11 shares is six more than twice the
number of $10 shares. How many of each does he have?
The number of $10 shares: |
Enter an integer or decimal number (more..
The number of $11 shares:
Submit Question
Step-by-step explanation:
just follow the answer good luck
This is relative frequency table. Can someone help?
Answer:
Step-by-step explanation:
59 kids are playing video games.. we are maybe missing some of the instructions? or are there not any more?
if you let a soap in the floor does the soap is cleaning the floor or is the soap getting dirty?¿
Answer:
que
Step-by-step explanation:
no se
Answer:
soap is getting dirty regardless if there is water on the floor.
Step-by-step explanation:
A report on the nightly news broadcast stated that 10 out of 108 households with pet dogs were burglarized and 20 out of 208 without pet dogs were burglarized. Suppose that this data is used to test the claim that the proportion of households with dogs that are burglarized is the same as the proportion of households without dogs that are burglarized. What would be the test statistic for this test
Answer:
The answer is "0.9184".
Step-by-step explanation:
This problem is assisted by data analysis:
Its overview hypothesis test to two sample proportions:
[tex]p_1 :[/tex]percentage of population contributions 1
[tex]p_2:[/tex]percentage of population contributions 2
[tex]\to p_1 - p_2:[/tex] proportion difference
[tex]\to H_0 : p_1 - p_2 = 0\\\\\to H_A : p_1 - p_2 ? 0[/tex]
Calculating the Hypothesis test values:
[tex]Diff \ \ Count1 \ \ Total1 \ \ Count2 \ \ Total2 \ \ Sam. Diff. \ \ Std. Err.\ \ Z-Stat \ \ P value\\\\[/tex]
[tex]p_1 - p_2\ \ 10\ \ 108\ \ 20\ \ 208\ \ -0.0035612536\ \ 0.034766147\ \ -0.10243452 \ \ 0.9184[/tex]
So, the [tex]P - value = 0.9184[/tex]
Given that £1 = $1.62
b)
a) How much is £650 in $?
b) How much is $405 in £?
Answer:
A) £650 = $1053
B) $405 = £250
Step-by-step explanation:
For a) Since £1 is equal to $1.62 you would just do £650 times 1.62 to get $1053
For b) Since £1 is equal to $1.62 you would do $405 divided by 1.62 to get £250
What is fifty-two billion in expanded form?