Sososos
Step-by-step explanation:
Which of the following is the best approximation of the area of the circle?
Answer:
49π or 153.938 mm²
Step-by-step explanation:
Area of a Circle Formula: A = πr²
Since we are given radius r, simply plug it into the formula:
A = π(7)²
A = 49π
A = 153.938
Answer:
Step-by-step explanation:
Pleased to help u....
YOO I NEED THIS RIGHT NOW!!
What is the difference of
[tex]( \frac{3}{4} x - \frac{2}{3} ) - ( - \frac{5}{6} + 2x)[/tex]
?
[tex] - \frac{5}{4} x + \frac{1}{6} [/tex]
[tex] - \frac{5}{4} x - \frac{1}{6} [/tex]
[tex] \frac{11}{4} x + \frac{1}{6} [/tex]
[tex] \frac{11}{4} x - \frac{1}{6} [/tex]
Answer:
The first option: -5/4x + 1/6.
Step-by-step explanation:
(3/4x - 2/3) - (-5/6 + 2x)
= (3/4x - 2/3) + 5/6 - 2x
= 3/4x - 2x - 2/3 + 5/6
= 3/4x - 8/4x - 4/6 + 5/6
= -5/4x + 1/6
So, the first option: -5/4x + 1/6.
Hope this helps!
Select the correct answer from each drop-down menu. Simplify. √63
Answer:
√63 can be written as
√ 9 × 7 = √ 9 × √7 = 3 × √ 7
= 3√7
Hope this helps you
Answer: [tex]3\sqrt{7}[/tex]
Step-by-step explanation:
Separate [tex]\sqrt{63}[/tex] into [tex]\sqrt{7}[/tex] and [tex]\sqrt{9}[/tex]. Then simplify [tex]\sqrt{9}[/tex] into 3. Thus, the simplified version of [tex]\sqrt{63}[/tex] is [tex]3\sqrt{7}[/tex]
change 3/4 to decimal
Answer:
0.75
Step-by-step explanation:
Since we use the base 10 decimal system, first convert 3/4 to out of 100:
3/4 = 75/100
We divide 75 by 100 to get 0.75
find the volume and total surface area of a rectangular solid of dimensions 2cm by 3cmby 4cm
Answer:
volume-24 cm³
total surface area-12 cm²
Step-by-step explanation:
volume-2cmx3cmx4cm=24 cm³total surface area-3cmx4cm=12 cm²I promise I will mark as brainiest How many minutes is it before 12 noon, if 48 minutes ago it was twice as many minutes past 9 a.m.?
Answer:
You first need to convert everything to minutes:
12 noon = 12 x 60 = 720 minutes
9 am = 9 x 60 = 540 minutes
Let x = number of minutes before noon
The time now is 12 noon -x = 720 -x minutes
48 minutes ago it was 720-x-48
720 -x - 48 = 540 + 2x
720-48-540 = 3x
x = 44 minutes
It is 44 minutes before noon, or 11:16 am
Answer:
9:00 am -------------------- 12:00pm ( There are 180 minutes between them)
Go 48 minutes back (132 Minutes between them)
That time is divided by 2
(4x minutes past 9:00 and x minutes left to reach 12:00)
132/3 = 44 minutes are left
Given: ∆ABC – iso. ∆, m∠BAC = 120° AH ⊥ BC , HD ⊥ AC AD = a cm, HD = b cm Find: P∆ABH
P = _____ cm
Answer:
P = 5.4641b cm.
Step-by-step explanation:
If the triangle ABC is isosceles and m∠BAC = 120°, we have that:
[tex]mACB = mABC = (180-120)/2 = 30\°[/tex]
Then, in triangle ABH, we have:
[tex]mABH + mBHA + mHAB = 180\°[/tex]
[tex]30\° + 90\° + mHAB = 180\°[/tex]
[tex]mHAB = 60\°[/tex]
If m∠BAC is 120°, we have:
[tex]mHAB + mHAC = 120\°[/tex]
[tex]m∠HAC = 60\°[/tex]
Now we can find the length of AH using the sine relation of angle m∠HAC:
[tex]sin(mHAC) = DH / AH[/tex]
[tex]0.866 = b / AH[/tex]
[tex]AH = b / 0.866 = 1.1547b[/tex]
Now, to find the length of HB and AB, we can use the tangent and cosine relation of the angle m∠HAB:
[tex]tan(mHAB) = HB / AH[/tex]
[tex]1.7321 = HB / 1.1547b[/tex]
[tex]HB = 1.7321 * 1.1547b = 2b[/tex]
[tex]cos(mHAB) = AH / AB[/tex]
[tex]0.5 = 1.1547b / AB[/tex]
[tex]AB = 1.1547b / 0.5 = 2.3094b[/tex]
So the perimeter of triangle ABH is:
[tex]P(ABH) = AB + HB + AH[/tex]
[tex]P(ABH) = 2.3094b + 2b + 1.1547b[/tex]
[tex]P(ABH) = 5.4641b[/tex]
The relation of a and b can be calculated using the tangent relation of the angle m∠HAC:
[tex]tan(mHAC) = DH / AD[/tex]
[tex]1.7321 = b / a[/tex]
[tex]b = 1.7321a[/tex]
Which of the following graphs is described by the function given below?
y = 2x2 + 8x+ 3
5
A.
B.
D.
A. Graph A
B. Graph B
C. Graph C
D. Graph D
Step-by-step explanation:
D. Graph D the answer is D
Answer:
D. Graph D the answer is D
Step-by-step explanation:
Please help!!! As soon as possible.
Answer:
The SAS Postulate.
Step-by-step explanation:
In the diagram, the two triangles are congruent. This is because there are two pairs of congruent sides, with a congruent angle in between. The two angles between the sides are congruent because of the Vertical Angle Theorem.
Hope this helps!
On a coordinate plane, a curved line with minimum values of (negative 1.56, negative 6) and (3, 0), and a maximum value of (1.2, 2.9), crosses the x-axis at (negative 2.5, 0), (0, 0), and (3, 0), and crosses the y-axis at (0, 0). Which interval for the graphed function has a local minimum of 0? [–3, –2] [–2, 0] [1, 2] [
Question:
On a coordinate plane, a curved line with
minimum values
o (negative 1.56, negative 6)
o (3, 0),
maximum value
o (1.2, 2.9),
crosses the x-axis
o (negative 2.5, 0),
o (0, 0),
o (3, 0),
crosses the y-axis
o (0, 0).
Which interval for the graphed function has a local minimum of 0?
[–3, –2]
[–2, 0]
[1, 2]
[2,3]
Step-by-step explanation:
From the given information, it 'crosses' the x-axis at (3,0), and this is also a minimum. Thus the local minimum is at (3,0), so the answer choice for the interval is [2,3] (not indicated in the posted question, so double check).
The graphed function has a local minimum of 0 at [2, 4]
What is function?A special relationship where each input has a single output. It is often written as "f(x)" where x is the input value.
Given that, On a coordinate plane, a curved line with minimum values of (-1.56, -6) and (3, 0), and a maximum value of (1.2, 2.9), crosses the x-axis at (-2.5, 0), (0, 0), and (3, 0), and crosses the y-axis at (0, 0).
This means,
When x = -1.56, the minimum value of the function is y(min) = -6
And,
When x = 3, the minimum value of the function is y(min) = 0
Therefore, the graphed function has a local minimum of 0, when x = 3
That means, the interval which contains this value of x is [2, 4] because, x = 3 ∈ [2, 4]
Hence, the graphed function has a local minimum of 0 at [2, 4]
For more references on function, click;
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please help me with this question and I'll give u a brainlist for the correct ans. thank you
Answer:
least value of n =4
Step-by-step explanation:
i hope the screenshot of my work broken down step by step helps
When the sun is 62° above the horizon, a building casts a shadow 18 m long. How tall is the building?
9514 1404 393
Answer:
33.9 m
Step-by-step explanation:
The relationship between the building height (h), the shadow length (s), and the angle of elevation of the sun (α) is ...
tan(α) = h/s
h = s·tan(α) = (18 m)tan(62°) ≈ 33.853 m
The building is about 33.9 meters tall.
Which of the following functions shows the quadratic parent function, F(x) =
x2, shifted left?
Answer: choice B
Step-by-step explanation:
just took the quiz
omm its B. G(x)=(x+8)^2
just took the test
someone please help me i've been stuck forever!
Answer:
11.4
Step-by-step explanation:
Proportions.
AB/ED=BC/DF
x/3.8 = 15/5
x=11.4
Expand and simplify (x-3)(x+5)
Answer:
x^2+2x-15
Step-by-step explanation:
x^2+5x-3x-15
=x^2+2x-15
Answer:
x² + 2x -15
Step-by-step explanation:
by using FOIL method (see attached for reference),
(x-3)(x+5)
= (x)(x) + (x)(5) + (-3)(x) + (-3)(5)
= x² + 5x - 3x -15
= x² + 2x -15
24) The sum of Sh.51000 was shared among three partners; Amos, John and peter such that the ratio
of Amos : John = 4:3 while John: Peter = 2:1. Calculate the amount received by Peter. (3 marks)
Answer:
Sh. 9000
Step-by-step explanation:
John : Peter = 2 : 1
John/peter = 2/1
John = 2 Peter.... (1)
Amos : John = 4:3
Amos/John = 4/3
Amos = 4/3 John.. (2)
From (1) & (2)
Amos = 4/3 * 2 Peter = 8/3 Peter.... (3)
Since,
Amos + John + Peter = 51000
Therefore,
8/3 Peter + 2peter + Peter = 51000
(8+6+3)/3 *Peter = 51000
17/3 * Peter = 51000
Peter = 51000 * 3/17
Peter = 3000 * 3
Peter = 9000
Hence, amount received by Peter is Sh. 9000.
please help its urgent !!!! -3c + 5d + 3c- d
Answer:
4d
Step-by-step explanation:
Am I supposed to simplify this?
-3c+5d+3c-d
-3c+3c+5d-d
0+4d
4d
Let me know if this helps :)
Answer:
= 4d
Step-by-step explanation:
-3c+3c = 0
5d-d = 4
-3c+5d+3c-d=4d
Help with the second question I am utterly confused! Please explian and I will give vrai lies y ASAP with 18 points
Answer:
See attached table
Step-by-step explanation:
Given base b,
the required formulas are:
Area of base = b^2
height: solve for h in 2b^2+4*bh = S =54
where S is the surface of 54
Substitute and solve for h,
h = (S - 2b^2)/(4b) = (54-2b^2)/(4b) = (27-b^2)/(2b)
The volume is equal to base area times height, or
V = b^2(h)
The completed table is attached.
(02.01 MC) A talent show broadcast on television asks viewers to call in to vote for their favorite act. Describe how the design of the survey leads to bias. (4 points) Select one: a. A voluntary response error was made in this design. This type of sampling only targets people with phones to call in and is not a good representation of the population. b. A convenience sample error was made in this design. This type of sampling only targets people with televisions and is not a good representation of the population. c. A voluntary response error was made in this design. This type of sampling only targets those who are passionate about a specific act and call in to vote; it is not a good representation of the population. d. A convenience sample error was made in this design. This type of sampling only targets people with access to that television channel and is not a good representation of the population. Incorrect e. There are no potential areas of bias.
Answer:
Option D is correct.
A voluntary response error was made in this design. This type of sampling only targets those who are passionate about a specific act and call in to vote; it is not a good representation of the population.
Step-by-step explanation:
When humans are given the choice whether to participate in a survey like in this question, most often than not, the survey becomes biased.
This is because only the people or set of people who feel strongly the most about the subject matter of the poll will participate in the survey. This favours the group that disagrees as this group, if given the choice to express their opinion, will most likely be the set of people that will readily express their discontent.
Discontent is more visibly and strongly expressed in humans.
In order to remove this bias, people should have been chosen at random and their responses recorded.
Hope this Helps!!!
Helppp!!!! please!!!
Answer:
A
Step-by-step explanation:
Which expressions are equivalent to 10 over 10 3/4?
Answer:
There are no choices, but [tex]\frac{10}{10.75}[/tex] can be changes in the following ways: multiplying the numerator and the denominator by the same amount, or dividing the numerator and denominator by the same amount.
Hope it helps <3
Answer:
40/43
Step-by-step explanation:
The fraction
10
-----------------
10 3/4
can be simplified by converting 10 3/4 to the improper fraction 43/4:
10 10 40
----------------- = _______ = ----------
10 3/4 43/4 43
Next time, please share any answer choices that are given to you. Thank you.
What is the measure of ABC? Please help, will give brainliest.
Answer:
Hello!
~~~~~~~~~~~~~~~~
Your answer would be (D) 60
~~~~~~~~~~~~~~~`~
Hope this helped you!
Without multiplying, order the following products from least to greatest. 23* 2/2 23* 1/4 23* 13/5
Arrange in ascending order ½, ⅛, ¾, ⅖
Answer:
1/8, 2/5 , 1/2, 3/4
Step-by-step explanation:
1/2= 0.5
1/8= 0.1
3/4= 0.8
2/5= 0.4
just arrange them in the order from smallest to largest......
Answer:
⅛ < ⅖ < ½ < ¾
Step-by-step explanation:
First, rewrite the fractions so that they all have the same denominator.
The new denominator should be the lowest common multiple of the original denominators.
The L.C.M. of 2, 8, 4, and 5 is 40.
When multiplying the denominator to 40, make sure you multiply the numerator with the same value you use to multiply the denominator.
1/2 = 1x20 / 2 x 20 = 20/40
1/8 = 1x5 / 8x5 = 5/40
3/4 = 3x10 / 4x10 = 30/40
2/5 = 2x8 / 5x8 = 16/40
When all the denominators are the same, we can compare the numerator. The greater the numerator, the greater the fraction is.
Between 20, 5, 30, and 16, the smallest is 5, then 16, 20 and greatest is 30.
Since ascending order means listing them out from smallest to greatest, the order should be:
⅛ < ⅖ < ½ < ¾
factor 20r+60t to identify the equivalent expression
Answer:
[tex]\boxed{20(r + 3t)}[/tex]
Step-by-step explanation:
[tex]20r + 60t[/tex]
Factor out 20 from the expression.
[tex]20(r) + 20(3t)[/tex]
Take 20 as common.
[tex]20(r + 3t)[/tex]
How are zeros, the vertex, and symmetry of a quadratic function interpreted in a context?
Answer:
The zeroes of a quadratic equation are the points on the graph where it lies on the x-axis.
The vertex is the point where it is the maximum or minimum value of x or y depending on the symmetry.
The symmetry is the line where it cuts the graph through the vertex of the graph dividing it into two equal parts that mirror each other.
The quadratic formula, factoring, and completing the square are the methods used to solve a quadratic equation.
f(x) + 7 shifts the graph 7 units up, f(x +7) shifts the graph 7 units to the left
Step-by-step explanation:
N a group of 39 students, 14 study both Art and Biology. 5 study Biology but not Art. 6 study neither subject. Given that a randomly selected student studies Art, what is the probability the student studies Art and Biology?
Answer:
14/39 which is about 35.9%
Step-by-step explanation:
We have a total of 39 students and 14 of which study both Art and Biology
and the rest of the total is unimportant to the question. Since there are 14 students out of 39 we can now do the math and figure out that 14 divied by 39 is right about 35.9 percent.
Can you pick brainliest?
Use the substitution method to solve the system of equations. Choose the
correct ordered pair
y = 12x-8
y=8x
A (4.12
B (3,15
C. (5.11
D. (216)
Answer:
D) (2,16)
Step-by-step explanation:
Y=12x-8
Y=8x
8x=12x-8
8=12x-8x
8=4x
2=x
Y=8x
Y=16
if y is an integer, find the value of y that satisfies both the linear inequalities y-2<2 and 3y+10>16
please give me calculation too tq
Answer:
Value of y = 3
Step-by-step explanation:
Given:
y-2<2 ........Eq1
3y+10>16.........Eq2
Find:
Value of y
Computation:
y-2<2
Add 2 both side,
y-2+2<2+2
y < 4
So y = (0,1,2,3)
Put y = 3 in both equation:
y-2<2
3-2<2
1<2
3y+10>16
3(3) + 10 >16
19>16
Both equation get satisfies by y = 3
So, Value of y is 3
In the diagram, what is the perimeter of polygon $PQRST$?
Answer:
24
Step-by-step explanation:
PQ is equal to QR, therefore QR=3
Draw a perpendicular line down from R to line TS to form a triangle and since PT=6, the height of the right angle triangle would be 3.
The base of the right triangle would be 7-3=4. Using pytag. theorem [tex]\sqrt{4^{2}+3^2 }=5[/tex]
Therefore RS=5.
So now we can sum up everything: PQ+PT+TS+RS+QR= 3+6+7+5+3=24