3 Answers:
B) Diagonals bisect each other and diagonals are equal in lengthD) The opposite sides are congruentG) Diagonals do not bisect the 90 degree angles==========================================================
Explanation:
Let's go through the answer choices one by one
A) This is false. If the diagonals were perpendicular, then we would have a square. The diagonals are also perpendicular for any rhombus and for any kite. For any non-square rectangle, the diagonals are not perpendicular.B) This is true. The diagonals bisect each other because we're dealing with a parallelogram. Any rectangle is a parallelogram. For any rectangle, the diagonals are equal in length as well. We can use SAS congruence theorem to prove this.C) This is false. The first part is true, but the second part contradicts what choice B is saying.D) This is true. The opposite sides of any rectangle are congruent, and they are parallel. E) This is false. Imagine a really stretched out or elongated rectangle. So not all four sides of a rectangle are the same length. If they were, then we would have a square.F) This is false. The diagonals do not bisect the angles unless we're dealing with a square. Again imagine stretching out a rectangle to make it very elongated. G) This is true since choice F was false.The statements always true about rectangles are Diagonals bisect each other in diagonals are equal in length, Opposite sides are congruent, Diagonals DO NOT bisect 90° angles.
What is Rectangle?Rectangle is a two dimensional figure which has four sides and four angles and all the angles are right angles.
Diagonals are not perpendicular in rectangles. So first statement is wrong.
Diagonals bisect each other in rectangles and the length of the diagonals are equal.
Since the length of diagonals are equal, third statement is wrong.
Opposite sides of a rectangle are equal and are thus congruent.
In a rectangle, only opposite sides are congruent and equal. All the four sides are not equal and are thus not congruent.
Diagonals of a rectangle does not bisect 90° angles.
Hence the correct statements are shown.
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2x^3-3x-5=O wat the answer
Find the area of the parallelogram in square units.
A scientist uses a submarine to study ocean life.
• She begins at sea level, which is an elevation of o feet.
• She descends 28.7 feet.
• She then ascends 9.9 feet.
Next, she descends a second time, 92.8 feet.
How many feet must she now ascend to get back to sea level?
Answer:
111.6
Step-by-step explanation:
92.8+28.7=121.5
121.5-9.9=111.6
PLEASE HURRY I'LL GIVE THE MOST BRAINLY!!!!!!!!!!!!!! Apples are on sale for $1.49 per pound. What is the price for 2 1/2 pounds of apples? Express your answer in decimal form, and round your answer to the nearest hundredth.
Answer:
$3.725
Step-by-step explanation:
1.49/ per pound
1.49× 2.5= 3.725
solve for x, −2 (4x+4) −3x − 2 = 34 help needed, thanks!
Hey there!
The answer to your question is [tex]-2 \frac{3}{11}[/tex]
[tex]-2(4x+4) - 3x -2= 34[/tex] Write the equation
[tex]-8x - 8 - 3x - 2 = 34[/tex] Distribute -2
[tex]-11x-10 = 34[/tex] Combine like terms
[tex]-11x = 24[/tex] Add 10 to both sides
[tex]-2 \frac{3}{11}[/tex] Divide both sides by -11
Hope it helps and have a great day!
URGENT!!!! The area of a rectangular floor is 80 square feet. The length of the floor is 2 feet less than the width of the floor.
What is the width of the floor?
Drag the answers into the boxes to correctly complete the statements.
The equation Response area , where w is the width of the floor in feet, can be used to solve this problem. The width of the floor is Response area feet.
Answer:
The width of the floor is 10 ft.
Step-by-step explanation:
First, you have to form expressions of width and length in terms of w. With the given information :
width = w ft
length = (w - 2) ft
Given that the area of rectange is A = length × width so you have to subtitute the expressions and value into the formula :
A = l × w
80 = (w - 2) × w
w(w - 2) = 80
w² - 2w = 80
w² - 2w - 80 = 0
(w + 8)(w - 10) = 0
w + 8 = 0
w = -8 (rejected)
w - 10 = 0
w = 10
Help pleasee needed
Answer:
Yes
AA similarity
DCE
Step-by-step explanation:
plz give thx and brainliest!
The diagram shows a regular hexagon and a parallelogram.
Answer:
180-112 = 68
120-68=52
Step-by-step explanation:
I think that is 52
Answer:
x=52
Step-by-step explanation:
180-112=68
use the equation :(n-2)x180
(6-2)x180=720
720/6=120
120-68=52
at.the zoo there is a ratio of zebra to giraffes 5:2 there are 21 animals how many zebra and how many graffies
Step-by-step explanation:
Given that the ratio of zebras are 5 and giraffes are 2
We add them giving is 7
So: giraffe=2/7 × 21 = 6
Zebra 5/7 × 21 = 15
ima cry brainliest giving it out
Stefanie has 18 grams of 20% sugar syrup and john 30 of 25% if Stefanie and john mix the syrups together how many grams of sugar will they have?
Answer:
23.1%
Step-by-step explanation:
11/48=0.23125
Round up for percent.
0.231x100=23.1
23.1%
Will mark brainliest!!! Plz solve for each variable
Step-by-step explanation:
parallel
8g - 3 = 25
8g = 25 + 3
8g = 28
g = 28/8
g = 14/4
f + 30 + 72 = 180 (straight angle = 180°)
f = 180 - 30 - 72
= 78
can someone help me?
Step-by-step explanation:
the answer would be
4
2
1
3
5
A 40-inch board is to be cut into three pieces so that the second piece is 3 times as long as the first piece and the third piece is 4 times as long as the first piece. If x
represents the length of the first piece, find the lengths of all three pieces.
What is the length of the first piece?
What is the length of the second piece?
What is the length of the third piece?
Answer:
The first piece is 5 inches long, while the second is 15 inches and the third one is 20 inches.
Step-by-step explanation:
To determine the length of the 3 pieces, knowing that the total of the board is 40 inches, and that the second measures 3 times more than the first and the third measures 4 times more than the first, the following equation must be performed:
X + 3X + 4X = 40
8X = 40
X = 40/8
X = 5
Therefore, the first piece is 5 inches long, while the second is 15 inches and the third 20 inches.
plz help due in 10 min
Answer:
the answer is A <_______________^______________
d=7/2cm. The radius is ____ cm.
Answer:
r = 7/4
Step-by-step explanation:
Radius is always 1/2 of the diameter.
The prism and pyramid above have the same width, length, and height. The volume of the prism is 36 cm3. What is the volume of the pyramid?
What's the two numbers that round to the greatest place value have an estimated sum of 11000 and an estimated difference of 3000,then find the exact sum and the exact difference provide a detailed explanation as to how you reached your answers and why they will work
Answer:
hi
Step-by-step explanation:
hi hi hi hi hi hi hi.........
PLZ HELP WILL GIVE V=BRIANLYEST
i also agree to this question
Answer:
i also agree to this question
Step-by-step explanation:
please help me asap!!!
Answer:
230
Step-by-step explanation:
Add the other angles for a total of 130 degrees there is a total of 360 degrees in the interior angle of a quadrilateral subtract 130 from 360.
Answer:
m< CDF = 58°
Step-by-step explanation:
Key skills needed: Congruent Triangles
1) We can use Triangle Congruence Rules to prove that Triangle EDF and Triangle CDF are congruent triangles.
2) Since both triangles have 1 right angle, they are both triangle triangles.
3) Both triangles share the same hypotenuse (DF)
Also, it gives us EF is 36, and FC is 36 --> This means that EF ≅ FC
Since both are Right Triangles, we can use Right Triangle HL Congruence to prove it
HL means Hypotenuse-Leg
This rule can only be applied to right angle triangles. In order to use this rule, a hypotenuse and a leg of the triangles need to proven congruent.
4) Since ΔEDF ≅ ΔCDF with Right triangle HL, we can say that < CDF is congruent to < EDF. These are corresponding parts of the triangle.
--> To say that < CDF is congruent to < EDF, we can use the theorem:
If Δs are ≅, then all corresponding parts are ≅.
5) Therefore, <CDF ≅ <EDF (which means the measures of the angles are the same value)
Since <EDF is 58°, <CDF would also be 58°
Hope you understood and have a nice day!! :D
sketch the graph y=x^2+2x+3, indicating clearly the coordinates of any intersection and the coordinates of axes
1. Solve the system and find the solution.*
3x + 4y= 4
y = 3x - 14
HURRY PLEASE....... Jessica always uses the same ratio of green beads to blue beads when she makes necklaces. The graph shows these equivalent ratios. Which table shows the same data?
Answer:b
Step-by-step explanation:
two beads for every 3
(4y' - 49 +8) - 092-y+3)
Answer:
3y-130
Step-by-step explanation:
hope this was helpful! c:
Answer:
3y-130 hope this helps
Step-by-step explanation:
Please help quickly as possible thank you
WILL GIVE BRAINLEST
1.1.4 Practice: Scale Drawings
Practice
Math 7 Sem 2
Points Possible:5
Name:
William Bennett
Date:
Tips for Success
Read the assignment carefully and make sure you answer each part of the question or questions.
Check your work when you're done.
Your Assignment
Jason and Adam are using a kit to build their own electronics board for a computer project. They use a scale drawing included in the instructions to help build the board.
Jason will use the scale factor to find the board's actual length and width, then multiply those dimensions to find the board's area.
Adam says he knows another way.
Answer the questions to show how Adam could find the area of the scale drawing, and then use this strategy to find the area of the electronics board.
1. What is the area of the board shown on the scale drawing? Explain how you found the area.
Write your answer in the space below.
2. How can Adam use the scale factor to find the area of the actual electronics board? Remember, he uses a different method than Jason.
Write your answer in the space below.
3. What is the area of the actual electronics board?
Write your answer in the space below.
Answer:
do we answer all of them are just one
The formula for the velocity of an object is v=d/t, where v is the velocity of an object, dis the distance traveled, and t is the time elapsed, while the distance is traveled. If you had only this formula to work with, what should your first step be in determining how long it takes for light to reach Earth from the Sun? What additional information do you need to calculate this?
Answer:
To know the distance between the sun and the earth you need isolate d of the equation:
[tex]v = \frac{d}{t} \\ d = vt[/tex]
and the additional information needed is the velocity of light and the time elapsed to be in the earth
EASY WORK!! Plz look at the photo and yes it’s easy for other people but not me .
Answer: 48
Step-by-step explanation:
Answer:
b) 54 minutes ( week 6 )
Please answer the question
Answer:
D. 2x² + 10xy + 8x² because (2x+ 2y) by (x + 4y)Step-by-step explanation:
Let's mark the sides of the big square as x and a small square as y
See attached picture below
Then we will have the sides of the rectangle:
x + x + y + y = 2x + 2yandx + y + y + y + y = x + 4yThe area of the figure is:
A = lwA = (2x+ 2y)(x + 4y) = 2x² + 8xy + 2xy + 8y² = 2x² + 10xy + 8x²Correct option is D.
in a school containing 360 children, 198 are girls. What percent of the school are girls? What percent of the school are boys? How many boys are there? How many girls are there? Thank you!
Answer:
Part A)
Part B)
Part C)
Part D)
Step-by-step explanation:
we know that
The probability of an event is the ratio of the size of the event space to the size of the sample space.
The size of the sample space is the total number of possible outcomes
The event space is the number of outcomes in the event you are interested in.
so
Let
x------> size of the event space
y------> size of the sample space
P=x/y
Part A) What percent of all children are girls?
we have that
y= 360 children
x=198 girls
substitute
p = 198/360 0.55
Find the percentage
0.55*100=55%
Part B) What percent of all children are boys?
we have that
y=360
x=360-198
substitute
p= 162/360=0.45
Find the percentage
0.45*100=45%
Part C) The number of girls is what percent of the number of boys?
we have that
y=162
x=198
substitute
p=198/162=1.22
Find the percentage
1.22*100= 122%
Part D) The number of boys is what percent of the number of girls?
we have that
y=198 girls
x=162 boys
substitute
p=162/198=0.8182
Find the percentage
0.8182*100=81.82%
The percentage of the school are girls is 55%.
The percentage of the school are boys is 45%.
The number of boys in the school is 162.
The number of girls in the school is 198.
What is the percentage?A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.
Given, In a school containing 360 children, 198 are girls.
Therefore, The percentage of the school are girls is,
(198/360)×100%.
= 55%.
The percentage of the school are boys is,
= [(360 - 198)/360]×100%.
= 45%.
Or The percentage of the school are boys is, (100 - 55)% = 45%.
The number of boys in the school is,
(360 - 198).
= 162 boys.
The number of girls in the school is 198.
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Identify the property that justifies the following statement
1. Distributive Property of Congruence
2. Symmetric Property of Congruence
3. Reflexive Property of Congruence
4. Transitive Property of Congruence
Answer:
Transitive property of congruence
Step-by-step explanation:
