Answer:
Option B
Step-by-step explanation:
Here ,
The mean value is 0.62
Z value formula is
z = (x' -mean)/(sigma/sqrt (n))
Substituting the given values, we get -
sigma = Sqrt {(x'-mean)^2/n}
Sigma = sqrt { (0.58-0.62)^2/75} = 0.09
z = (0.58-0.62)/(0.09)
z = -0.433
Hence, option B is correct
Answer:
im choosing A cause my answer shows 0.238 ill let yall know what i get
Step-by-step explanation:
I got a hundred
Standard Dev: 0.05604
0.58-0.62 / 0.05604 = (Z-Score) -0.713
Find the area of the sector MAG in terms of Pi and approximate to the nearest hundredth
Answer:
Area of sector MAG = 35.2π unit² (Approx.)
Step-by-step explanation:
Given:
Diameter MP = 26 unit
ARC MG = ARC IP
∠GAI = 30°
Find:
Area of sector MAG
Computation:
Radius = Diameter MP / 2
Radius = 26 / 2
Radius = 13 units
∠MAG = ∠IAP
So,
∠MAG + ∠GAI + ∠IAP = 180
∠MAG + 30 + ∠MAG = 180
2∠MAG = 150
∠MAG = 75°
Area of sector = [θ/360][π][r]²
Area of sector MAG = [75/360][π][13]²
Area of sector MAG = [0.2083][π][169]
Area of sector MAG = 35.2π unit² (Approx.)
solve for x
logx(128)=7
Answer:
x is 2
Step-by-step explanation:
Given that f(x)=x^2+3x-28f(x)=x
2
+3x−28 and g(x)=x+7g(x)=x+7, find f(x)+g(x)f(x)+g(x) and express the result in standard form.
9514 1404 393
Answer:
x^2 +4x -21
Step-by-step explanation:
Substitute the given expressions and simplify.
f(x) + g(x)
= (x^2 +3x -28) +(x +7)
= x^2 +(3+1)x +(-28 +7)
= x^2 +4x -21
i have no clue what the answer is
Answer:
Second option is the correct answer.
Step-by-step explanation:
[tex] \frac{2}{3} x - 5 > 3 \\ \\ \frac{2}{3} x > 5 + 3\\ \\ \frac{2}{3} x > 8 \\ \\ x > 8 \times \frac{3}{2} \\ \\ x > 12[/tex]
Find the median of the set of data. 30, 16, 49, 25
Answer:
16,25,30,49
25+30=55
55÷2=27.5
Step-by-step explanation:
median means the middle value of any set of data so first arrange the data into ascending order.
16, 25, 30, 49
the data is even so we take both the middle value , add it and divide it with 2
25+30=55
55÷2=27.5
how many solutions does this graph have?
Answer:
one solution
Step-by-step explanation:
It will cross the x-axis one time
HELP ME IN MATH PLEASE IM FAILING :( NO FAKE ANSWERS PLS :)
The area of a parallelogram has the following formula: A=bh
Plug-in the given numbers.
Base=14cm
Height=13cm
A=bh
A=14 x 13
A=182
Therefore, the area of the figure is 182cm2
Answer: 182 square centimeters
Step-by-step explanation:
The formula for finding the area of a parrallelogram is A = bh. If the top measurement is 14 cm, then the bottom measurement is also 14 cm. The height is 13 cm.
A = (14) (13)
A = 182 cm^2
2x^2 + 3x - 12, when x = 5
solve this and I'll give you brainliest.
Line P R and Line Q S are diameters of circle T. What is the measure of Arc S R?
50°
80°
100°
120°
Answer:
100
Step-by-step explanation:
PLz help me plz plz I need thed answer plz
Answer:
[tex]-15\geq x\geq 5[/tex]
Step-by-step explanation:
X is between -15 and 5, the closed dots tell us we must include both -15 and 5 in the equation
Can someone please help me with this I will mark u brilliant
Answer:
80 is the median
The median is just the number in the middle and since 80 is in the middle the median is 80 hope that helps!
6 and 3/4 cups of fruit salad was made. They ate 1/3 of the salad. How much fruit salad did they eat?
Answer:
6 1/2
Step-by-step explanation:
Solve the right triangle. 150 Find the length of the side adjacent to the given angle. (Round your answer to two decimal places.) Find the length of the hypotenuse. (Round your answer to two decimal places.) Find the other acute angle.
Answer:
62.12
15degrees
Step-by-step explanation:
Given
Opposite = x= 60
Angle of elevation = 75degrees
Required
Hypotenuse
Using the SOH CAH TOA identity
Sin theta = opp/hyp
Sin 75 = 60/H
H = 60/sin 75
H = 60/0.9659
H = 62.12
Hence the hypotenuse is 62.12
Since the sum of angle in a triangle is 180degrees, hence
75+90+x = 180
X is the unknown side
165 + x =180
x = 180-165
x = 15degrees
Hence the other acute angle is 15degrees
What is the distance between the points (-1,2) and (2,3).
9514 1404 393
Answer:
3.16 ≈ 3.2
Step-by-step explanation:
Put the numbers in the distance formula and do the arithmetic.
d = √((x2 -x1)² +(y2 -y1)²)
d = √((2-(-1))² +(3-2)²) = √(3² +1²) = √10
d ≈ 3.16 ≈ 3.2
The distance rounded to hundredths is 3.16. Rounded to tenths, it is 3.2.
What is true about the dilation?
On a coordinate plane, the triangle image has points (0, 0), (2, 4), (4, 0). The triangle pre-image has points (0, 0), (4, 8), (8, 0).
It is a reduction with a scale factor between 0 and 1.
It is a reduction with a scale factor greater than 1.
It is an enlargement with a scale factor between 0 and 1.
It is an enlargement with a scale factor greater than 1.
There is a lot of debate on this question so I have the real answer and photo proof if people want the real answer
Btw I’m not giving anyone brainliest thx
Answer:
A
Step-by-step explanation:
The person asking the question is giving the answer. If i'm correct, give me a thanks
Answer:A
Step-by-step explanation:
estimate 38.6+4.3 to the nearest 10
Bob is saving up for a new phone. He has about $150 right now but she has a job and gets paid $15 an hour to babysit. If he works everyday for about a month, how much money should she have? Write an equation.
Current Balance: $150
Income rate: 15x
Equation: 15x+150
Identify the volume of a rectangular pyramid with length 16 m, width 12 m, and height 17 m.
Answer:
Correct Answer: 1088 m3
Step-by-step explanation:
To find the volume of the pyramid, first calculate the area of the base.
As the pyramid is rectangular, the base of the pyramid is a rectangle.
Use the formula for the area of a rectangle to calculate the area of the base.
B = lw
Substitute 16 for l and 12 for w.
B = 16 ⋅ 12
Simplify.
B = 192 m2
To find the volume of the pyramid, use the formula for the volume of a pyramid.
V = 1/3 Bh
Substitute 192 for B and 17 for h.
V = 1/3 ⋅ 192 ⋅ 17
Simplify.
V = 1088 m3
Therefore, the volume of the rectangular pyramid is 1088 m3.
The perimeter of a rectangle is 42 meters. The length of the rectangle is 3 meters less than twice the width. Find the length of the rectangle. *
Answer:
The length of the rectangle is 13m
Hello :D help pls? Thanks
What is the area of this partial circle if the radius is 8 inches long? Leave your answer in terms of pi.
Answer:201.06
Step-by-step explanation:
Austin checks the temperature at 10:00 p.m. He notices if the temperature
falls by 5 more degrees, it will break the record-low temperature for that date,
which is 26 degrees.
If t = the temperature in degrees at 10:00 p.m., which mathematical sentence
expresses the information above?
O A. t-5 < 26
B. t+ 5 < 26
O C. -5 > 26
O D. t+5 > 26
Answer:
A. t - 5 < 26°
Step-by-step explanation:
Record low temperature for that date = 26°
Temperature at 10:00 PM = t
A fall in temperature by 5° = t - 5
Thus, this is said would mean the record low temperature would be breaking at this point, meaning the new temperature low recorded will be less than 26°.
In mathematical expression, this is expressed as;
t - 5 < 26°
What is (5b + 3x)(5d-3b)
Parts of similar triangles.
If DEF~ JHI, find EF
Answer:
[tex]EF = 18[/tex]
Step-by-step explanation:
Given
[tex]\triangle DE\ F[/tex] similar to [tex]\triangle JHI[/tex]
Required
Find [tex]EF[/tex]
[tex]\triangle DE\ F[/tex] similar to [tex]\triangle JHI[/tex] implies that:
The corresponding sides are:
[tex]DE \to JH[/tex]
[tex]DF \to JI[/tex]
[tex]EF \to HI[/tex]
[tex]FG \to IK[/tex]
First, solve for x using the following corresponding ratios
[tex]EF : HI = FG : IK[/tex]
This gives:
[tex]x + 8 : 3x - 2 = 9 : 14[/tex]
Express as fraction
[tex]\frac{x + 8 }{ 3x - 2} = \frac{9 }{ 14}[/tex]
Cross multiply
[tex]14(x + 8) = 9(3x - 2)[/tex]
Open brackets
[tex]14x + 112 = 27x - 18[/tex]
Collect like terms
[tex]27x - 14x = 112 + 18[/tex]
[tex]13x = 130[/tex]
Solve for x
[tex]x = 10[/tex]
In the diagram, we have:
[tex]EF = x +8[/tex]
[tex]EF = 10 +8[/tex]
[tex]EF = 18[/tex]
A family needs a truck that has a volume of at least 850 cubic feet. Will a truck that is 17 feet long , 7 feet wide, and 7 feet tall be big enough to hold all the familys belongings?
Answer:
No it can not
Step-by-step explanation:
Pls help meh pls, im not good at math, but if you help me I can help with English or something like that
NO LINKS OR YOU WILL GET REPORTED
Find the area of the figure. (Sides meet at right angles.)
Answer:
52 i think
Step-by-step explanation:
big rectangle is 40
little rectangle is 12
Graph the given function.
f(x) = 7x
Which key features apply to the graph?
Answer:
The graph has an asymptote at y = 0 and is increasing as x approaches positive infinity.
Step-by-step explanation:
:)
1+1=?,
Plz Helppp meeeeeeeeeeeeeeeeeee
Answer:
2 is teh answer
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
The median of the values in a data set is y. If 48 were subtracted from each
of the values in the data set, what would be the median of the resulting data?
A. y + 48
B. y
C. 48 - y
D. y - 48
Answer:
Answer would be D.
Please help me please
Answer:
Option D
Step-by-step explanation:
→ Simplify the option
3 × 3 × 2 × 2 = 36
→ Simplify the other part
3 × 2 × 2 = 12
Convert 22 days to weeks and days.
22 days=
Convert 454 minutes to hours and minutes.
454 minutes =
Convert 4 years and 4 months to months.
4 years and 4 months =
Convert 12 pounds and 13 ounces to ounces.
12 pounds and 13 ounces=
Answer:
22 days = 3 weeks and 1 day
454 minutes = 7 hours and 34 minutes
4 years and 4 months = 148 months
12 pounds and 13 ounces = 205 ounces