line XY is perpendicular to line CD at D. Which conclusion can be drawn?
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Answer:
measure angle XDC = 90 degrees
Explanation:
The term "perpendicular" implies that the angle formed between the two lines is 90 degrees.
These two lines do not have to be equal in length, they just intersect forming a 90-degree angle.
Comparing the explanation with the given choices, we would find that the only correct choice is:
measure angle XDC = 90 degrees
Hope this helps :)
Related Questions
BRAINLIEST FOR CORRECT ANSWER!!! A gift in a cubic box with 12 in. edge lengths needs to be wrapped. How many square inches of wrapping paper will be needed to cover the box?
36 in²
72 in²
144 in²
864 in²
Answers
Cubes have 6 faces.
144 * 6 = 864
You would need 864 in^2 of wrapping paper.
The supplement of an angle has a measure that is 20 degrees more than twice the measure of an angle , x degrees. Which equation can be used to find the value of x?
A) 2x + 20 = 90
B) 2x + 20 = 180
C)(2x + 20) + x = 90
D)(2x + 20) + x = 180
Please Help Me
Answers
_____
I would write it differently.
.. 180 -x = "supplement of an angle"
.. 2x +20 = "20 more than twice the measure"
These are said to be equal, so I would write it as
.. 180 -x = 2x +20
Of course, adding x to both sides of this equation makes it
.. (2x +20) +x = 180 . . . . . . matches selection D
I'll give brainliest if you show your work. Plz answer quickly.
Nolan used the following procedure to find an estimate for the square root of 18.
Step 1: Since 4^2=16 and 5^2= 25 and 16 < 18 < 25, the square root of 18 is between 4 and 5.
4.1^2=16.81
4.2^2=17.64
4.3^2=18.49
4.4^2=19.36
Step 3: Since 18.49 rounds to 18, 4.3 is the best approximation for the square root of 18.
In which step, if any, did Nolan make an error?
A) In step 1, the square root of 18.
is between 4 and 5 because the square root of 18 equals about 20 and 4 times 5= 20.
B) In step 2, he made a calculation error when squaring.
C) In step 3, he should have determined which square is closest to 18.
D) Nolan did not make an error.
Answers
Nolan correctly identified the square numbers before and after 18.
The square roots of them are 4 and 5.
Clearly, square root of 18 should lie between 4 and 5 only.
He, then carefully squared 4.1, 4.2, 4.3 etc. and identified that 4.3 squared is nearer to 18.
Since, Nolan is finding estimated square root, his steps are cool and he didn't make any error.
Answer: C
Step-by-step explanation:
Took a quiz
Morty buys and sells computer parts he bought two monitors for $25 each and later sold them for 88 each he bought four cases for $15 each and later sold them for $24 each if you buy five memory modules for $20 each and later sold them for $55 each
Morty’s total cost for the items he purchased was?
Morty revenue from the sale of the item was
Morty’s total profit was
Answers
Answer:
Step-by-step explanation:
Cost = 25×2 +15×4+20×5 = $210
Revenue = 88x2+24×4+55×5 = $547
Profit = Revenue - Cost = 547 - 210
Profit = $337
I need help on this one please
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1.80-1= 0.80
hope this helps! :)
find the total surface area of the pyramid
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4 * 6 = 24
24 / 2 = 12
There are four sides (not including the base) in this pyramid, so we should multiply this by 4.
12 * 4 = 48
Now, we find the area of the base.
6 * 6 = 36
We add up all of the numbers:
48 + 36 = 84
84 in^2 is the answer.
Hope this helps!
Mrs.martin made 15 3/4 gallons of sweet tea for a celebration how many quarts of sweet tea did ms.martin make
Answers
15 3/4 x 4 - convert the 15 3/4 and 4 to improper fractions.
73/4 x 4/1 (you can cross cancel the 4's because one is in the numerator and one in the denominator (4/4=1),
73/1 = 73 quarts in 15 3/4 gallons.
Mrs. Martin made 73 quarts of sweet tea.
Where does Point A And B go? Marking brainliest
Answers
If the area would be 36, then we do 6[tex]*[/tex]6, and from this, it would obviously give us 36. We do (6) square units going up, and when we do this, the area would be 36. (see attachment below).
(point E would be plotted (2,4)) which would be noticed on the graph below this answer.
I hope this was founded helpful. Have an amazing day! :)
There are twice as many liters of water in one container as in another. If 8 liters of water are removed from each of the two containers, there will be three times as many liters of water in one container as in the other. How many liters of water did the smaller container have to begin with?
Answers
This would make '2x' litres of water in the larger container.
After taking 8 litres from both containers, the following equation can be written:
(2x-8) = 3 (x-8)
Open the brackets:
2x-8 = 3x-24
Collect like terms:
x = 16
There were 16 litres in the smaller container
A restaurant used 3 pounds of potatoes during a lunch rush. If they used 3/8 as much beef, how many pounds of beef did they use?
Answers
Final answer:
To find the amount of beef used when the restaurant used 3 pounds of potatoes during a lunch rush and used 3/8 as much beef, simply calculate 3 pounds * 3/8 to determine the amount of beef used, which is 1.125 pounds.
Explanation:
The restaurant used 3 pounds of potatoes during a lunch rush. If they used 3/8 as much beef, we can find the amount of beef used:
Calculate how much beef is equivalent to 3 pounds of potatoes: 3 pounds * 3/8 = 9/8 = 1.125 pounds of beef.
Therefore, the restaurant used 1.125 pounds of beef during the lunch rush.
[tex] \frac{7x + 21}{x2 + 5x + 6} \div \frac{x + 6}{x + 2} [/tex]
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given \: expression \: - \\ \\ \frac{7x + 21}{ {x}^{2} + 5x + 6} \div \frac{x + 6}{x + 2} \\ \\ \\ \frac{7x + 21}{ {x}^{2} + 5x + 6} \times \frac{x + 2}{x + 6} \\ \\ \\ \frac{7(x + 3)}{(x + 3)(x + 2)} \times \frac{(x + 2)}{(x + 6)} \\ \\ \\ = \frac{7}{(x + 6)} \: \: \: \: \: ans.[/tex]
Ray is x years old. His brother Ron is y years older than Ray.
What will the sum of their ages be in 5 years?
Answers
In the neighborhood park there is a circular grassy picnic area but half of the grass has died the city wants to replace the grass but needs to know the square footage of the damaged area if the circular picnic area is 150 feet across what is the square footage of the damaged area
Answers
answer b
Step-by-step explanation:
5/6 x2 1/5 will be _________21/5
Will it be grater then,
less then
or equal to
Thank you for your help
Answers
You need to find out which fraction is greater.
First, you need to solve 5/6 x 2 1/5
--------------------------------------------------------------
[tex]Solving[/tex]
--------------------------------------------------------------
5 x 11 = 55
------------- ---- Simplified is 1 5/6
6 x 5 = 30
------------------------------------------------------------------
The LCD [ Least Common Denominator ] is 30.
so, 55/30 & 126/30
Therefore, 1 5/6 is less than 21/5
Hope this helped!
Arturo builds a cube that measures 5 in on each side. What is the volume of Arturo's cube?
Answers
[volume of a cube]=b³
where
b------> is a side length of a cube
for b=5 in
[volume of a cube]=5³--------> 125 in³
the answer is 125 in³
Can’t afford to get wrong please do not write if you don’t know thanks !
Answers
RT is tangent to circle Q -- TRUE. That is the point of the construction.
QT is a radius of circle Q -- TRUE. Q is the center and T is on the circle. A line segment from the center to a point on the circle is a radius.
m∠QSR = 90° -- FALSE. Those points lie on the same line. The measure of the angle is 180°.
QS = QT -- FALSE. S lies inside circle Q, so is closer to the center than T, which lies on the circle. (For some choice of point R, S might lie on the circle, but because this statement is not always true, it must be considered false.)
ΔRTQ is a right triangle -- TRUE. A tangent line is always perpendicular to the radius to the point of tangency. The construction succeeds because RTQ is inscribed in semicircle RTQ (centered at S). Such a triangle is always a right triangle.
HHEELLPP PLLEEASE I GIVE !BRAINLIEST! PLEASE HELP ME
Answers
The y-intercept is (0,10)
The slope is m=7
4b) The y-intercept is 10. It is the number of points earned if the trick lasts 0 seconds.
4c) The slope of the line is 7. 7 additional points are earned for each second the trick is held.
please help i will mark brainliest and explain
Answers
5^2 is 5 times itself 1 times, which is 5 x 5, which 25.
1+25=26. Meaning that choice A is best.
5^2 = 25
1 + 25 = 26
Find the cardinal number for the following sets.
A = {102, 103, 104, 105,..., 155}
B = {102, 104, 106, ..., 252}
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For example, if P={1,4,6}, cardinality is 3 because there are three member in the set.
For A, the numbers run consecutively from 102 to 155, so there are (155-102)+1=54 members. The cardinality is therefore 54
Similarly, for B={102,...252}, there are (252-102)+1=151 members. So the cardinality is 151.
Please help with the ones I circled for brainliest! thank you so much
Answers
.. (18 ft)^2 -(10 ft)^2 = 224 ft^2
3) The area of this is the sum of the areas of a rectangle 11 in by 7 in, and a triangle with base 7 in and height 5 in.
.. (11 in)*(7 in) +(7 in)*(5 in)
.. = (7 in)*(11 in +2.5 in) = 94.5 in^2
4) The central rectangle is 10 cm by 14 cm; the remaining triangle has a height of 7 cm and a base of 24 cm.
.. (10 cm)*(14 cm) +(24 cm)*(7 cm)/2
.. = 140 cm^2 +84 cm^2
.. = 224 cm^2
In South Australia, an average of 16 400 000 packets of chips were eaten each day. After a campaign by the health department this amount reduced by 3.9 million.
How many packets of crisps were eaten after the campaign?
Answers
zayna is putting ribbon around a picture of her dog the picture is 300 mm wide and 150 mm tall how many meters of ribbon will she need
Answers
2(300mm) + 2(150mm)
600mm + 300mm = 900mm
900mm = 0.9m
Solve the equation and show all work please show steps!!
e/5-14=8
Answers
--------------
Simplify
1/5e - 14 = 8
----------------
Add 14 to each side
1/5e-14+14=8+14
1/5e = 22
-------------------
Multiply each side by 5
5 * 1/5e = 22 * 5
e = 110
graph the linear equation find three points that solve the equationm then plot on the graph 2y=5x+11
Answers
(0,5.5)
(-2.2,0)
Answer:
(-1,3) (-3,-2) (-5,-7)
Step-by-step explanation:
Help with #11, show work!
Answers
Add 10 and 7 together to get 17.
Divide 85 by 17 to get 5.
The missing number is 5.
hope this helps!
n cold climate areas, trucks are used to disperse salt on the roads in order to de-ice the roads, making them safe for travel. In some cases, cone- shaped sheds store the salt during the off-season, or until the roads need to be de-iced. This large salt storage shed sits 12 feet above the ground and holds approximately 51.4 cubic feet of salt. To the nearest hundredth of a foot, what is the radius of the large storage shed? Use 3.14 for . In your final answer, include all of your calculations.
Answers
You will substitute in the information you know and then solve for the radius(r).
Please see the attached picture for the steps necessary to get an approximate radius of 2.02 ft as the radius.
The radius of the large storage shed is approximately 2.023 feet to the nearest hundredth of a foot.
To find the radius of the large storage shed, we need to use the formula for the volume of a cone, which is given by: [tex]\[ V = \frac{1}{3} \pi r^2 h \][/tex]
where V is the volume, r is the radius of the base, h is the height and [tex]\( \pi \)[/tex]is approximately 3.14. We are given that the volume V is 51.4 cubic feet and the height h is 12 feet. We need to solve for r.
First, let's rearrange the formula to solve for r: [tex]\[ r^2 = \frac{3V}{\pi h} \][/tex]
Now, plug in the given values:
[tex]\[ r^2 = \frac{3 \times 51.4}{3.14 \times 12} \][/tex]
[tex]\[ r^2 = \frac{154.2}{37.68} \][/tex]
[tex]\[ r^2 \approx 4.093 \][/tex]
Now, take the square root of both sides to find r:
[tex]\[ r \approx 2.023 \][/tex]
So, the radius of the large storage shed is approximately 2.023 feet to the nearest hundredth of a foot.
Pleaseeeee halpppp
Determine how many actual fish food boxes fit in the shipping box. Show your work.
Find the volume of the shipping box using the two methods and show your work:
Packing cubes
Using the volume formula
Explain how both methods provide the same measurement of volume for the shipping box.
Answers
(L•W•H)
hope this helps u have a nice day
Answer:
Number of boxes that will fit =2340
Step-by-step explanation:
The shipping box volume can be calculated by the formula V = Lxwxh ,where L ,w ,h are length ,width and height of the box.
The length of the shipping box =[tex]3\frac{3}{4} =\frac{15}{4} ft.[/tex]
Width = 3 ft.
Height =[tex]3\frac{1}{4} =\frac{13}{4} ft.[/tex]
Volume of shipping box =[tex]\frac{15}{4} .3 .\frac{13}{4} =\frac{585}{16} = 36.6 ft[/tex].cubic ft.
Volume of shipping box can also be calculated by multiplying base area with the height of box.
Base area of box = [tex]\frac{15}{4} .3=\frac{45}{4} square ft.[/tex]
Volume of box = base area x height =[tex]\frac{45}{4} .\frac{13}{4} = 36.6 cubic ft.[/tex]
Volume of packing cubes =[tex]\frac{1}{4} .\frac{1}{4} .\frac{1}{4} =\frac{1}{64}[/tex] cubic ft.
Number of fish boxes that will fit in the shipping box = volume of shipping box ÷ volume of fish food box = 36.6 ÷ [tex]\frac{1}{64}[/tex] =2340 .
A conical hat has a radius of 7 inches and a height of 14. What’s the slant height
Answers
The slant height of a conical hat with a radius of 7 inches and a height of 14 inches is found by using the Pythagorean theorem, leading to a slant height of approximately 15.65 inches.
To find the slant height of a conical hat with a radius of 7 inches and a height of 14 inches, we use the Pythagorean theorem for the right triangle formed by the radius, height, and slant height of the cone. The slant height is the hypotenuse of this right triangle, while the radius and the height are the two legs.
The formula for the Pythagorean theorem is:
a^2 + b^2 = c^2
Where:
a is the radius of the cone (7 inches),
b is the height of the cone (14 inches), and
c is the slant height of the cone (what we are trying to find).
Substituting the values into the formula, we get:
7^2 + 14^2 = c^2
49 + 196 = c^2
245 = c^2
To find c, we take the square root of both sides:
c = √245
The slant height (c) is then calculated to be:
c ≈ 15.65 inches
HELP!! Adding and subtracting radicals
Answers
2. 6√5 - The third option
3. 7 5√x^2y - The third option
4. 3√2x-6(3√x) - The third option
Need help soon.
How many pieces 1/3 of a foot each can I make out of 7 feet of rope?
Answers
In order to find how many pieces of 1/3 feet rope you can make out of 7 feet rope, you have to divide 7 feet by 1/3 feet.
7/ (1/3) = 21 pieces
Therefore, you can make 21 1/3 – feet ropes.
7 ÷ [tex] \frac{1}{3} [/tex]
[tex]7 * \frac{3}{1} = 21[/tex] pieces