5.
In the parallelogram ABCD, the diagonals AC and BD
are equal in length. What is the measure of the angle A
?
two
(A) 30
(B) 45
(C) 60
(D) 75
(E) 90
How to solve this?

Answers

Answer 1

Answer:

  (E) 90°

Step-by-step explanation:

The diagonals of a parallelogram are equal in length if and only if the parallelogram is a rectangle.

Any angle of a rectangle is 90°.

_____

Adjacent angles of a parallelogram are supplementary. If the diagonals are the same length, the triangles formed by either diagonal are congruent with the triangles formed by the other diagonal. This means adjacent angles are congruent. Congruent supplementary angles are 90°.


Related Questions

If the length of a rectangle is 2x + 4 and the width is x - 2. write
an expression to represent the perimeter of the rectangle.


Will Give BrainlyIst

Answers

Answer:

  P = 6x +4

Step-by-step explanation:

Use the given values in the formula for the perimeter of a rectangle:

  P = 2(L +W)

__

You have ...

  L = 2x +4

  W = x -2

So, the perimeter is ...

  P = 2((2x +4) +(x -2)) = 2(3x +2)

  P = 6x +4

The perimeter of the rectangle is 6x+4.

What is the value of tan(60°)?
A
01
12
300
03
03
2.
В
60°
6
п
с

Answers

Answer:

√3 is the answer

Step-by-step explanation:

the value of tan60 is √3

Isabel works for a company that makes toys. She is trying to figure out what types of toys kids enjoy playing with most. She started with a survey asking whether kids liked dolls or trains. She surveyed 80 kids. Of the kids who don't like dolls, 30% more kids like trains than don't like trains. Fill out the rest of his table.

Answers

The table that represents the survey conducted by Isabel is:

                               Like Dolls        Don't like Dolls    Total

Like Trains                40                             15                  55

Don't like Trains         17                               8                 25

Total                           57                             23                80

How can the table be filled?

The total number of kids that like dolls = total number kids - total number of kids that don't like dolls

80 - 23 = 57

Number of kids that don't like Trains but like dolls = total number kids that like dolls - Number of kids that  like Trains and dolls

57 - 40 = 17

Number of kids that don't like dolls and but like trains :

30% x 23 = 7

(23 - 7) /2 + 7 = 15

Number of kids that don't like dolls and trains = (23 - 7) / 2 = 8

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erica earned a total of $67,850 last year from her two jobs.the anount she earned from her job at the store was $1,450 more than three times the amount she earned from her job at the college.how much did she earn in dollars from ger job at the college?

Answers

Answer:

Step-by-step explanation:

Evaluate the following expression when t=5 when t^2-2t-2

Answers

Answer:

13

Step-by-step explanation:

Evaluate the following expression when

t=5 when t^2-2t-2

replace t with 5 and remember PEMDAS

5² - 2 * 5 - 2 =

25 - 10 - 2 =

13

Answer:

when t=5

5² - 2×5 -2 = 13

hope it's right

What percent of 75 is 24?

Answers

Answer:

Your Answer is 32%

Explaination:

We already have our first value 75 and the second value 24. Let's assume the unknown value is Y which answer we will find out.

We already have our first value 75 and the second value 24. Let's assume the unknown value is Y which answer we will find out.As we have all the required values we need, Now we can put them in a simple mathematical formula as below:

STEP 1 >> Y = 24

75

STEP 2 >>

24 × 100 = 32

75 × 100 100

STEP 3>> Y = 32%

Finally, we have found the value of Y which is 32 and that is our answer.

You can use a calculator to find what percent of 75 is 24, just enter 24 ÷ 75 × 100 and you will get your answer which is 32.

Answer:

32

Step-by-step explanation:

(75/100) × X = 24

75X = 2400

75X/75 = 2400/75

X = 32

32% of 75 gives you 24

in its Simpliest form, The Ratio of 825g to 1kg​

Answers

Answer:

Step-by-step explanation:

1g = 0.001 kg.

82.5g = 0.001 x 82.5 kg

= 0.0825 kg

= 825/1000 kg

Find the value of y, rounded to the nearest tenth

Answers

Answer:

3.9 to nearest tenth.

Step-by-step explanation:

Using the theorem of intersecting chords:

9 * y = 5 * 7

y = 35/9

= 3.888...

Answer: Y = 3.9
(Not Rounded: 3.88)

PLEASE HELP 15 POINTS!!!

Answers

Sequence: 24 + 12 + 6 + 3 +...

Explanation:

This is infinite geometric series converges.

[tex]\sf S \infty \ =a_1 \ x \ \dfrac{1}{1-r}[/tex]

Identify the following

a1 = 24r = 12 ÷ 24 = 1/2

Solve:

[tex]\rightarrow \sf S \infty \ =24\ x \ \dfrac{1}{1-\frac{1}{2} }[/tex]

[tex]\rightarrow \sf S \infty \ =48[/tex]

This is series has a sum of 48.

NEED HELP WITH SLOPE

Answers

take two points

(2,4)(-3,-3)

Slope

m=y2-y1/x2-x1m=-3-4/-3-2m=-7/-5m=7/5

Answer:

[tex]m=\dfrac{7}{5}[/tex]

Step-by-step explanation:

To find the slope of a line, find two points on the line and define them as follows:

[tex]\textsf{let}\:(x_1,y_1)=(-3,-3)[/tex]

[tex]\textsf{let}\:(x_2,y_2)=(2,4)[/tex]

Substitute the points in the slope formula and solve for m:

[tex]\begin{aligned}\textsf{slope}\:(m) & =\dfrac{y_2-y_1}{x_2-x_1}\\\\ & =\dfrac{4-(-3)}{2-(-3)}\\\\ & = \dfrac{4+3}{2+3}\\\\ & = \dfrac{7}{5}\end{aligned}[/tex]

Therefore, the slope of the given line is [tex]\dfrac{7}{5}[/tex]

A blight is spreading in a banana plantation. Currently, 458 banana plants are infected. If the
disease is spreading at a rate of 8% each year, how many plants will be infected in 8 years?
If necessary, round your answer to the nearest whole number,
banana plants

Answers

The number of infected banana plants with a rate of 8% will be in 8 years is 848.

What is exponential growth or decay function?

Consider the function:

y = a(1 + r)ˣ

where x is the number of times this growth/decay occurs, a = initial amount, and r = fraction by which this growth/decay occurs.

A blight is spreading on a banana plantation. Currently, 458 banana plants are infected.

If the disease is spreading at a rate of 8% each year.

Then the number of the plants that will be infected in 8 years.

Then the exponential function is given as

y = 458(1.08)ˣ

At x = 8, then we have

y = 458(1.08)⁸

y = 458 x 1.851

y = 847.73

y ≅ 848

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Can a triangle have sides with the given lengths?
9 cm, 4 cm, 11 cm

Answers

No. The 9cm and 4cm sides together make 13cm, so they would fold flatly against the 13cm side, forming a line segment with no area, no interior, and no angles.

2. Start with the parent function for a square root function. Perform the following translations:

-reflect the graph over the x-axis
-move the graph to the left 2 units
-move the graph down 3 units

1) Sketch the original function and the shifted function on the same graph.

2) Write the equation of the shifted function.

Answers

Answer:

2/23

Step-by-step explanation:

Surface area and radis

Answers

Answer:

what do you want to say......?

can you please help me solve the problem​

Answers

Answer:

a

Step-by-step explanation:

Help pretty please?.?.?? Prize is 20 points :)

Answers

Answer:

7

Step-by-step explanation:

Because 2x-4 equals -8

Gary's daily jogging track is 0.9 miles long. In how many days will she have covered a distance of 27 miles?​

Answers

Answer:

30 days.

Step-by-step explanation:

27 ÷ 0.9 = 30.

Answer:

in 30 days she will reach 27 miles.

Step-by-step explanation:

27 miles / 0.9 miles = 30 days

Subtract;
233.66-66.24
43.12-21.11
24.6-19.777​

Answers

Answer:

1. 167.42

2. 22.01

3. 4.83

233.66-66.24 = 167.42

43.12-21.11 = 22.01

24.6-19.777 = 4.823

Which conditional probabilities are correct? check all that apply. p(d | f) = startfraction 6 over 34 endfraction p(e | d) = startfraction 7 over 25 endfraction p(d | e) = startfraction 7 over 25 endfraction p(f | e) = startfraction 8 over 18 endfraction p(e | f) = startfraction 13 over 21 endfraction

Answers

The conditional probabilities that are correct are P(D | F) =  6/34, P(E | D) = 7/25 and P(F | E) = 8/18

How to determine the true conditional probabilities ?

The conditional probability P(A|B) is calculated using:

P(A | B) = P(A and B)/P(B)

Using the above formula and the data in the complete question (see attachment), we have the following computations:

P(D | F) = 6/34

P(E | D) = 7/25

P(D | E) = 7/18

P(F | E) = 8/18

P(E | F) = 8/34

By comparing the above computations with the options, the conditional probabilities that are correct are P(D | F) =  6/34, P(E | D) = 7/25 and P(F | E) = 8/18

Read more about conditional probabilities at:

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Answer:

A, B, D

Step-by-step explanation:

yw :)

which inequality is represented by this graph?

Answers

Answer:

the answer is A for the shaded region

The diameter is 57 cm what is the radius and area write your solution below

Answers

Answer: radius: 28.5

area: 2551.76

Step-by-step explanation:

radius is always half of the diameter and area is pi(r^2)

the radius is always half the diameter, d=28.5

What is the simplified value of the exponential expression 16 superscript one-fourth? 2 4

Answers

For the exponential expression, [tex]16^{1/4}[/tex] the simplified value is 2.

How to simplify the exponential expression?

First, we need to remember a rule for exponential expressions, it says that:

[tex]x^{1/n} = \sqrt[n]{x}[/tex]

Then we can rewrite the given exponential expression as:

[tex]16^{1/4} =\sqrt[4]{16}[/tex]

So, we just need to find a number that when multiplied by itself 4 times, is equal to 16.

We know that:

2*2 = 4

Then:

2*2*2*2 = 2⁴ = 4*4 = 16

Then we can conclude that:

[tex]16^{1/4} =\sqrt[4]{16} = 2[/tex]

So the simplified value of the exponential expression is 2.

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solve the equation by graphing y = -x2 + 9 Y= 2x+1

Answers

Answer:

Please read the explanation

Step-by-step explanation:

I recommend using desmos (search it as "desmos graphing calculator") as it is the most popular website students use to graph equations of almost all kind.

type in both equations, and I don't know if you're supposed to find the X intercepts or Y intercepts. but this website will save you!

Simplify 2x - 4) + 7(x + 2).
9x + 6
9x - 4
09x - 6

Answers

Answer:
Simplify 2x - 4) + 7(x + 2).
9x + 6
9x - 4
09x - 6
= 9x+10

Calculate the median of 4.6, 3, 8.1, 9, 12, 3, 9, 3.5 ,7 ,3?

Answers

Check the picture below.

Geometry is so hard help me!

Answers

Answer:

x = 2√5

Step-by-step explanation:

Isosceles right angle triangles have two congruent sides ( for more reference , kindly check the attached image ) making it a special 45-45-90 degree triangle.

Special triangles have simple easy rules to help identify the lengths of the other sides lengths. For the 45-45-90 degree triangle, the hypotenuse (longest side) is equal to the value of the triangles leg(shorter sides) times √2 ( for more reference kindly check the other attached image )

Here, the value of the leg it equal to √10

If the value of the hypotenuse (x) = leg × √2

Then the value of x = √10 × √2

x = √10 × √2 = √(10 × 2) = √20

==> simplify radical

x = 2√5

Find the area of the right triangle.

Answers

Answer:

Step-by-step explanation:

Comment

The area of a right triangle is the product of the two smaller legs divided by  2.

Givens

Horizontal Leg =   4 units.

Vertical Leg      =   8 units

Note. you count units by calling the right angle 0,0. As you move to the next square, count 1 then 2 then 3 ...

Solution

Area = 4 * 8 / 2

Area = 32 / 2

Area = 16

Answer

Area  = 16

   

PLEASE HELP !!!!!!
If a prism is placed into a basin of water (density: 32.5 lb/ft3) and displaces 3.7 pounds of water, what is the volume of the water that was displaced (in cubic inches)?

Answers

The volume of the water that was displaced will be equal to 0.06 cubic feet.

How are the density, volume, and mass of a substance-related?

Suppose that a finite amount of substance is there having its properties as:

mass of substance = m kg

density of substance = d kg/m³

volume of that substance = v m³

Then, they are related as:

[tex]d = \dfrac{m}{v}[/tex]

If a prism is placed into a basin of water (density: 32.5 lb/ft3) and displaces 3.7 pounds of water, then the volume of the water that was displaced will be

We know that the density of the water is 62.4 pounds per cubic foot.

Then we get

3.7 = 62.4 × volume

Volume = 0.059

Volume ≅ 0.06 cubic-foot

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Step-by-step explanation:

' MLB

ML Ĺ

bryon yuuù 6553w2 wasmay what is this portion insulator used for

What is the value of x? put your answer as a decimal.​

Answers

Answer:

It should be 58.6 if Im not mistaken. Im so sorry if I'm wrong.

Step-by-step explanation:

what is the slope intercept of 3x-2y=-16.

Answers

                 - - - - - - - - - - - - - - - - - - - - - - - - - - -

[tex]\diamond\large\blue\textsf{\textbf{\underline{Given question:-}}}[/tex]

          What is the slope-intercept form of 3x-2y=-16?

[tex]\diamond\large\textsf{\textbf{\underline{\underline{Answer and how to solve:-}}}}[/tex]

✥ First, we need to subtract 3x on both sides, which results in

-2y=-16-3x

Or

-2y=-3x-16

[tex]\bigstar[/tex] Now, divide by -2 on both sides:-

[tex]\bold{(-2y):-2=(-3x-16):-2}[/tex]

On simplification,

[tex]\bold{y=\dfrac{3}{2} x+8}[/tex]

Good luck with your studies.

          - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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