Answers
Answer:
Angle AOB measures 39°
Step-by-step explanation:
180-(90+51)=39
Related Questions
In the figure below, C is between A and D, and B is the midpoint of AC. If BC= 3 and BD=10, find AD.
Answers
The line segment AD measures 13 units.
What is a line segment?
A line segment in geometry has two different points on it that define its boundaries. A line segment is sometimes referred to as a section of a line that links two places. The difference between a line and a line segment is that a line has no endpoints and can go on forever in either direction.
A line segment AD is given.
Four points A, B, C and D are placed.
It is given that measurement of BC = 3 units.
Also, measurement of BD = 10 units.
Since, B is the midpoint of AC, so -
AB = BC
So, the measurement of AB = 3 units
The measurement of CD can be found as -
CD = BD - BC
CD = 10 - 3
CD = 7 units
So the measurement for line segment AD is -
AD = AB + BC + CD
AD = 3 + 3 + 7
AD = 13 units
Therefore, the measurement value is 13 units.
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An equilateral triangle has sides of length 16.1 cm, correct to the nearest millimetre.
Find the lower and upper bounds of the perimeter of the triangle.
Answers
Answer:
48.3 cm is the lower and upper bound of the perimeter.
Step-by-step explanation:
For any equilateral triangle, by definition, the
lengths of the sides of the triangle are the same.
Thus, the perimeter of the triangle is 16.1 + 16.1 + 16.1 = 3(16.1) = 48.3 cm.
Thus, the upper and lower bounds are the same and are both equal to
48.3 cm.
After a rainy spring, beavers build a dam that stretches 235 feet across and is 3 feet tall. around the bend, the river is narrower, so a second beaver dam spans 115 feet across. if the proportions of the two dams are the same, how tall is the second dam?
Answers
Answer:
well,
Step-by-step explanation:
as you see.....uhhh.....hmmmm.....if you first a _________________________________
In Exercises 17-20, find the value of x so that the function has the given value. 17. f(x) = 8x - 7; f(x) = 17
18. g(x) = -4x + 7; g(x) = 27
19. f(x) = {* – 1; f(x) = 9
20. h(x) = 6 – Şx; h(x) = -2
Answers
Answer:
17.) x = 3
18.) x = -5
I couldn't do 19.) and 20.) for you because there are weird symbols that I believe you mistakenly input. But I'm sure you now get the gist of how to solve such problems. Peace <3
Step-by-step explanation:
All you really have to do for all of the problems is substitute your value of "x" for the function.
17.) f(x) = 8x - 7; f(x) =17
17 = 8x -7 ---- substitute 17 for f(x), add 7 on both sides
24 = 8x ------ divide 8 on both sides
x = 3
18.) g(x) = -4x + 7; g(x) = 27
27 = -4x + 7 substitute 27 for g(x), subtract 7 on both sides
20 = -4x
x = -5
i really need help with this question please help!!
Answers
Answer:
-7(2+5d)
Step-by-step explanation:
I'm sorry if is not the correct the answer
Answer:
-7(2+5d)
Step-by-step explanation:
-7(2+5d)=-14-35d
What is the length of each side of a cube whose volume is 8 units?
Answers
Answer:
2
Step-by-step explanation:
A cube as four sides. So we divide 8 by 4. What does that give us? Exactly! 2. Hop this helps!!
Given :-
Volume of cube is 8 u³.To Find :-
The length of each side .Answer :-
As we know that ,
Volume of cube = side³So that ,
a³ = 8 a =³√8 a = ³√2³a = 2uHence the side of the cube is 2 units.
The water in a tank is filling linearly. At 2:00 p.m.
the depth was 12.1 feet. At 5:30 p.m. the depth was 14.2 feet. What will the depth be at 9:30 p.m.?
Answers
Answer:
16. something
Step-by-step explanation:
Зх – 8 = 163 whats the response
Answers
Answer:
x=57
Step-by-step explanation:
3x-8=163
3x=171
x=57
Answer:
X=57
Step-by-step explanation:
3x-8=163
3x-8+8=163+8
163+8=171
3x÷3= 171+3
3 5/7x4 3/8
6 7/9x5 3/4
must show work
Answers
Step-by-step explanation:
26/7 ×35/ 8 =910/56
=16 1 /4
61/9 × 23 /4 =1403 / 36
=38 35/36
What is 15% of 60?
X = 0.15.60
Solve for x to find the answer.
A. 6.15
B. 5
C. 9
D. 400
Answers
Answer:
C. 9
Step-by-step explanation:
15/100*60
3/20*60
180/20
9
Answer:
The answer is 9
Step-by-step explanation:
15% * 60
"OF" mean multiplication so we multiple
¹⁵/100 * 60
we cancel "Zero cancel Zero"
we left with
¹⁵/10 * 6
but we can make the fraction to be uniform
so we say ¹⁵/10 * ⁶/1
we multiply
15 * 6=90
10 * 1=10
⁹⁰/10
we divide
10 into 90 is 9
10 into is 1
so we say ⁹/1 is the same as 9.
Hence our answer is 9
Joel runs the same distance
every day. Last week he ran
28 miles in 4 days. Find the
constant of proportionality
that relates the number of
miles, y, to the number
of days, x?
Answers
The constant of proportionality that relates the number of miles y, to the number of days x is [tex]\frac{1}{7}[/tex] .
What is proportionality?
In general, the word "proportion" is used to describe a part, share, or amount that is compared to an entire. Two ratios or fractions being equal is expressed by an equation or a statement. An analysis of two numbers in terms of their proportion. A ratio is said to be directly proportional to another if two sets of supplied numbers are increasing or decreasing in the same ratio. With the "::" or "=" symbol, proportions are indicated.
Here if the days are increasing then distance also increased . Then days directly proportional to the distance .
=> Number of days ∝ Total distance
=> x∝y
To remove proportion we hate to add constant K.
=> x= ky
Here if he runs 28 miles in 4 days. x=4, y=28.
=> 4 = k*28
=> k = 4/28
=> k = [tex]\frac{1}{7}[/tex]
the equation is x = [tex]\frac{1}{7}[/tex]y
Hence the constant of proportionality that relates the number of miles y, to the number of days x is [tex]\frac{1}{7}[/tex] .
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Shade one more square to make a
pattern with rotational symmetry order 2.
Answers
Answer:
shade the square that is 1 above the bottom right
To make a pattern with rotational symmetry order 2 we need to shade the square that is 1 above the bottom right.
What is rotational symmetry?The rotational symmetry of a shape explains that when an object is rotated on its own axis, the shape of the object looks the same. Many geometrical shapes appear to be symmetrical when they are rotated 180 degrees or with some angles, clockwise or anticlockwise.
Given is a figure of square box, of 5x5, we need to complete the shaded part so, that the resulting figure will be rotational symmetric,
Since, the figure needs to be rotational symmetric, that means, the figure will be same no matter how many times we rotated it,
If we shade the one square which is the last box of the fourth line, then it will be a figure which is rotational symmetric.
Hence, to make a pattern with rotational symmetry order 2 we need to shade the square that is 1 above the bottom right.
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What is 7x-1+6x-1=180? SHOW WORK!!!!!!
Answers
add the x’s, add the numbers
13x - 2 = 180
add 2 to 180
13x = 182
divide 182 by 13
x = 14
Answer:
Step-by-step explanation:
7x -1 +6x -1 = 180, group like terms
7x+6x -1 -1 = 180, combine like terms
13x -2 = 180, add 2 to both sides
13x -2+2 = 180+2 , solve the additions
13x = 182, divide both sides by 13
13x/13 = 182/13, solve the divisions
x = 14
Find the measure of each angle.
ZUVW and ZXYZ are complementary angles, mZUVW= (x - 10), and mZXYZ= ( 4X – 10),
Answers
Answer:
<ZUVW = 12 degrees
<ZXYZ = 78 degrees
Step-by-step explanation:
x - 10 + 4x - 10 = 90
5x -20 = 90
5x = 90 + 20
x = 110/5
x = 22
mZUVW = 22 - 10 = 12 degrees
mZXYZ = 4(22) - 10
= 78
what does the ratio 5/1 represent in terms of example
Answers
Answer:
5 times the compared amount.
Step-by-step explanation:
Answer:
The ratio means for everything 5 of something (lets call it x), y will always have 1.
Example - Jordan buys 5 cookies from the bakery. The special offer of the day allows him to receive one free brownie. This is an example of 5/1 because every 5 cookies, Jordan receives 1 brownie.
What are the answers
Answers
Answer:
69
Step-by-step explanation:
Answer:
42,069
Step-by-step explanation:
69696869696969
y=8x - x^2
y=2x
step by step solution
Answers
Answer:
(0,0) and (6,12)
Step-by-step explanation:
8x - x^2 = 2x
8x -2x -x^2 =0
6x -x^2 = 0 then factor out a common x
x (6-x) = 0
so x =0 or 6-x=o
x=6
so if x=o y=2x=2(0)=0
and if x=6 y =2x =2(6)= 12
Hannah has 126 coins. Some quarters and some are dimes. The total value of the coins is $16.50. How many of each coin does Hannah have
Answers
Answer:
Step-by-step explanation:
126 coins
Quarters(25) - Dimes(10)
Has $16.50
Q+D=126
Q*0.25+d*0.10=126
Srry for not answering since the rules say not to give answers away just to help understand more but if you need more help feel free to ask.
in each bouquet of flowers, there are 6 roses and 10 white carnations. complete the table to find how many roses and carnations there are in 2 bouquets of flowers.
Answers
Answer:
in two bouquets of flowers there would be, 12 roses and 20 white carnations.
Step-by-step explanation:
In each bouquet there are 6 roses and 10 white carnations, if there's 2 bouquets of flowers that means that there 2 x 6 and 2 x 10.
2 x 6 (or 6 + 6) = 12
2 x 10 (or 10 + 10) = 20
so in two bouquets there are 12 roses and 20 white carnations.
because in a single bouquet there are 6 roses and 10 white carnations so just double it!
hope that helps
2 x 10 = 20
There are 12 roses and 20 carnations.
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as brainliest!
What is the conjugate of 8 - 3i ?
Answers
Answer:
8+3i
Step-by-step explanation:
There are 75 fifth graders at Puckett Elementary. If 35 are girls, what fraction
of the whole fifth grade is boys?
Answers
Answer:
8/15
Step-by-step explanation:
75-35=40; 40/75=8/15
What is slope intercept from the line that passes through the points (-3,,-1) and (2,9)?
Answers
Step-by-step explanation:
What is the slope of the line that passes through the two points? (-3, 2) and (-1, 9)
1.
A line passes through the points (–3, 1) and (–1, 9).
A.
-4
B.
-1/4
C.
4
D.
1/4
Drag and drop each pair of lines into the correct category to indicate whether the pair of lines are parallel, perpendicular, or neither.
PLEASE HELP ME IM BOUTTA BREAK THIS COMPUTER
Answers
Zoe needs to rent a car. Kara's Kar Kompany charges $22 per day and a $100 cleaning fee. Callie's Car Company charges $26 per day and has a $40 cleaning fee. After how many days would the rental cost be the same for both car rental companies
Answers
Answer:
15 days
Step-by-step explanation:
Step 1 - Put in equation form:
22d + 100 = t
26d + 40 = t
Step 2 - Simplify equations:
22d + 100 = 26d + 40
100 - 40 = 26d - 22d
60 = 4d
d = 60/4
d = 15
Hope this helps!
Which equation has both 7 and -7 as a
possible value of x?
Answers
Answer:
Where are the equations?? Provide them so we can choose which one of them has both 7 and -7 as a possible value of x
which of the following does not correctly refer to the slope of a line?
a. m = x2-x1/y2-y1
b. it represents the steepness of a line
c. m = rise/run
d. it is the ratio of the vertical change to the horizontal change
Answers
Answer:
D
Step-by-step explanation:
d is incorrect because it's saying the vertical (x) is over the horizontal change (y) and we know that's wrong because it's y/x or rise/run
The option that does not correctly refer to the slope of a line is:
a. m = [tex]\frac{x_2-x_1}{y_2-y_1}[/tex]
Option A is the correct answer.
What is an equation of a line?The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
We have,
The slope of a line:
a.
m = [tex]\frac{x_2-x_1}{y_2-y_1}[/tex]
The slope formula is:
m = [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]
So,
m = [tex]\frac{x_2-x_1}{y_2-y_1}[/tex] is not correct.
b. it represents the steepness of a line.
The slope of a line is the steepness of the given line on the graph.
It is correct.
c. m = rise/run
The slope can also be termed as rise/run.
It is correct.
d. it is the ratio of the vertical change to the horizontal change
The slope of a line is given as:
m = Vertical change / Horizontal change
It is correct.
Thus,
The option that does not correctly refer to the slope of a line is:
a. m = [tex]\frac{x_2-x_1}{y_2-y_1}[/tex]
Option A is the correct answer.
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Rose bought green mangoes at P50 a kilo and sold them at 4 for P35. If she sold 20 kilos and there is an average of 7 mangoes per kilo, about how much did she gain?
Answers
Answer:
P = 225 P profit on 20 kilos of mangoes
Values:
Mangoes sold: [tex]20*7=140\\[/tex]
Cost paid for each mango: [tex]\frac{50}{7}[/tex]
Price each melon sold for: [tex]\frac{35}{4}[/tex]
Step-by-step explanation:
1. Substitute given values; [tex]P = 140(\frac{35}{4} - \frac{50}{7})[/tex]
2. Find common denominator: [tex]P=140(\frac{245}{28}-\frac{200}{28} )[/tex]
3. Subtract equation in parentheses: [tex]P=140(\frac{45}{28} )\\[/tex]
4. Divide [tex]140\\[/tex] by [tex]28[/tex] to remove denominator; [tex]P=5(45)[/tex]
5. Solve equation: [tex]P=225[/tex]
How do you solve for (w-2)²-63=0 where w is a real number
Answers
FOIL left hand side:
(w-2)^2 = w^2 - 4w + 4
So,
w^2 - 4w + 4 = 63
w^2 - 4w - 59 = 0
Then use quadratic equation to get values of w = 2 + 3*root(7) and w = 2 - 3*root(7).
±
3
√
7
What is the GCF of 52/65?
Answers
Answer:
The greatest Common factor of 52/65 is 13!
Step-by-step explanation:
Hope this helps :)
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And have an amazing day <3
Answer:
13
Step-by-step explanation:
The GCF of numbers can be found by first finding the prime factors of the numbers.
52 = 2^2 * 13
65 = 5 * 13
The GCF is the product of common factors with lower exponent.
The only common factor is 13.
GCF = 13
To reduce the fraction, divide the numerator and the denominator by the GCF.
(52/13) / (65/13) = 4/5
what is the aswer ??????
Answers
1)13 is a prime number!
2)➛(58+12)-(33-19)
➛70-14
➛56
3)2nd one