State how you know that triangle BDF is an isosceles triangle.

State How You Know That Triangle BDF Is An Isosceles Triangle.

Answers

Answer 1

Answer:

They have congruent 90 degree angle and can use angle addition theorem

Step-by-step explanation:

Answer 2

Answer:

bc the side legs db and fb are the same length

Step-by-step explanation:

a p e x


Related Questions

50 POINTS TIMED!! Which of the following shows the graph of y = 4x + 3? On a coordinate plane, an exponential function starts at y = 3 in quadrant 2 and then increases rapidly into quadrant 1. On a coordinate plane, an exponential function starts at y = 0 in quadrant 2 and then increases rapidly in quadrant 2. On a coordinate plane, an exponential function starts at y = 0 in quadrant 2 and then increases rapidly into quadrant 1. On a coordinate plane, an exponential function starts at y = negative 3 in quadrant 3 and then increases rapidly into quadrant 1.

Answers

Answer:

1st Graph

Step-by-step explanation:

Parent Graph of Exponentials: f(x) = a(b)^x + d

Since we are only modifying the base exponent and d (vertical movement), we should see that if we are only moving up and down, that graph 1 is the best choice.

Alternatively, we could graph the equation and choose the best fit:

Answer:

Step-by-step explanation:

 f(x) = a(b)^x + d

Write and solve an equation using the descriptions below.
The sum of 4 and three times a number is 19

Answers

Answer:

5

Step-by-step explanation:

Let x be that number.

4 + 3 × x = 19

4 + 3x = 19

Add -4 on both sides.

4 + 3x - 4 = 19 - 4

3x = 15

Divide both sides by 3.

(3x)/3 = 15/3

x = 5

Answer:

4+3x=19 so, x=5

19-4= 15, 15/3=5 or 5*3=15, 19-15=4.

good luck

Which of the following is a characteristic of spherical geometry?

Answers

Answer:

A characteristic of spherical geometry is that the sum of the angles of a triangle on the surface of a sphere is greater than 180 degrees.

Step-by-step explanation:

The fact that a triangle's sum of angles on the surface of a sphere is more than 180 degrees is a feature of spherical geometry. In actuality, the area of a spherical triangle on the sphere's surface is inversely proportional to the sum of its angles. Spherical geometry has this special trait because of the curved structure of the sphere, in contrast to Euclidean geometry, where the sum of the angles of a triangle is always 180 degrees.

describe the cross-section of the rectangular prism

trapezoid
rectangle
triangle
hexagon

Answers

Answer:

The cross-section of the rectangular prism is a:

rectangle

Step-by-step explanation:

When you take a cross-section of a rectangular prism, regularly you will obtain a rectangle because this was the base or the two-dimension figure that was used to form the three-dimension figure, in this case, the rectangular prism, the form of obtaining other figure is using how reference the square face, in that case, the cross-section would be a square, this happens because the cross-section is bind with the reference face. Possibly you think the cross-section in the figure doesn´t appear a rectangle, this happens by the perspective because we are looking at the rectangular prism with an inclination of 45°, but if the inclination was 90°, you would see a blue rectangle.

PLEASE HURRYYYYYYYYYY!!!!!!!!


In OD, AB = CB and marc CE - 52. Find mZBCE. (See picture)

Answers

Answer:

A. 109

Step-by-step explanation:

We know that since AB = CB, then ΔABC is isosceles.

Since AC, one of the sides of ΔABC, is on the diameter of circle D, by definition, we know that ΔABC is also a right triangle. Thus, if ΔABC is an isosceles right triangle, then ∠BAC = ∠BCA = 45°.

Draw a line connecting D to B so that we now have isosceles triangle BDC. Since arc BC is 52°, by definition of central angles, ∠BDC is also equal to 52°. Then, ∠DBC = ∠DCB = (180 - 52)/2 = 64°.

∠BCE = ∠DCB + ∠BCA

∠BCE = 64 + 45 = 109°

The answer is thus A.

~ an aesthetics lover

PLEASE HELP! DUE BY MIDNIGHT!

Answers

Answer:

it's over already? or what?

Find the missing segment in the attached image

Answers

Answer:

49 unit.

Step-by-step explanation:

concept used: basic proportionality theorem,

theorem states that, if a line is drawn parallel to one side of the triangle and intersect the other two sides then the two sides are divided in the same ratio.  

Example:

let there be a triangle ABC

if DE is drawn parallel to BC such that D is a point on line AB and E is other point on AC, then

AD/DB = AE/EC (basic proportionality theorem)

_____________________________________

Similarly in this problem ,

one side has length of 60 units,

The parallel line divides it at point such that one of the segment of this side is of 35 units.

Then other segment of same side = 60-35 = 25

now using basic proportionality theorem

?/35 = 35/25

=> ?/35 = 7/5

=> ? = 7/5 * 35 = 49

Thus, length of missing side segment is 49 unit.

P(A) = .20 P(B) = .25 P(A and B) = .10 What is P(B given A)

Answers

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

P(B given A) = 0.10 / 0.20

P(B given A) = 0.50

If a cow has a mass of 9×10^2 kilograms, and a blue whale has a mass of 1.8×10^5 kilograms, which of these statements is true?

The blue whale has about 200 times more mass.


The cow has about 200 times more mass.


The blue whale has about 500 times more mass.


There is no way to compare the masses.

Answers

Answer:

The 1st answer, The blue whale has about 200 times more mass. might be correct.

Step-by-step explanation:

9 x 10 ^2= 900 kilograms

1.8 × 10 ^5= 180000 kilograms

180000 kilograms / 900 kilograms= 200 times

Consider the graph of the linear function h(x) = –6 + h(x) equals negative 6 plus StartFraction 2 Over 3 EndFraction x. x. Which quadrant will the graph not go through and why?

Answers

Answer:

2nd quadrant.

Step-by-step explanation:

The given function is

[tex]h(x)=-6+\dfrac{2}{3}x[/tex]

We need to find the quadrant from which the graph of function is not passing.

At x=0,

[tex]h(0)=-6+\dfrac{2}{3}(0)=-6[/tex]

So, y-intercept is (0,-6).

At h(x)=0,

[tex]0=-6+\dfrac{2}{3}x[/tex]

[tex]6=\dfrac{2}{3}x[/tex]

[tex]18=2x[/tex]

[tex]9=x[/tex]

So, x-intercept is (9,0).

It means the graph intersect negative side of y-axis and positive side of x-axis. When we join these two points, we get the graph is not passing through the 2nd quadrant.

Therefore, the required quadrant is 2nd quadrant.

Answer:

Quarderant 2

Step-by-step explanation:

Brainliest, please?

How many integers lie between:
-1.25 and 2.6

Answers

Answer:

4

Step-by-step explanation:

An integer is a number that is not a decimal or a fraction.

The integers that lie between -1.25 and 2.6 are -1, 0, 1, and 2. They are all numbers with no decimal or fraction.

So, there would be 4 numbers that lie between -1.25 and 2.6.

Answer:

1

Step-by-step explanation:

(80 pts, pls help!) Using the following sample space: {(G,G), (B,G), (B,G), (B,B)} define the random variable for picking an outcome of green.

Answers

Answer:

X = 1, 2.

Step-by-step explanation:

In the sample space, the most greens you can get are 2. The only other thing with green would be one green in the pair. So, the random variable for picking an outcome of green would be X = 1, 2.

Hope this helps!

Can you help me fill in the blanks

Answers

Answer:

Here is the full proof:

AB || DE  Given

∠B = ∠D  Alternate interior angles theorem

∠A = ∠E   ↑

C is the midpoint of BD Given

BC = CD Definition of midpoint

ΔCBA ≅ ΔBDE    SAA

AC = CE   CPCTC

C is the midpoint of AE  Converse of definition of midpoint

The number 99 is increased to 104. What is the percentage by which the number was increased, to the nearest tenth of a percent?

Answers

Answer:

5.1

Step-by-step explanation:

I think im not shure

Answer:

5.05050505....% so about 5.1%

Step-by-step explanation:

Hope this helps!

Simplify (x4y)3. help

Answers

Answer:

the answer would be. 12xy

Answer:

12xy

step-by-step explanation:

Trying to find the missing segment to the triangle in the attached image.

Answers

Answer:

36 units.

Step-by-step explanation:

we will use concept of basic proportionality theorem,

it states that , when a line is drawn parallel to one side of the triangle and intersect the other two sides then the two sides are divided in the same ratio.

Example:

In a triangle ABC

If  DE is  parallel to BC

D is a point on line AB and E is  point on AC, then

by basic proportionality theorem)

AD/DB = AE/EC

_____________________________________

in the problem  given one side has a parallel line drawn to it

Hence we can use basic proportionality theorem in it

20/30 = 24/?

2/3 = 24/?

=> ? = 24*3/2 = 36

Hence, missing segment value is 36 units.

PLEASE HELP FOR MATH

Answers

Answer:

[tex]f(x) = 3x^2[/tex] and [tex]g(x) = x + 2[/tex]

Step-by-step explanation:

Given

[tex]h(x) = 3(x+2)^2[/tex]

[tex]h(x) = (fog)(x)[/tex]

Required

Find possible expressions for f(x) and g(x)

[tex]h(x) = (fog)(x)[/tex]

This can be rewritten as:

[tex]h(x) = f(g(x))[/tex]

Recall that [tex]h(x) = 3(x+2)^2[/tex]

So;

[tex]h(x) = f(g(x)) = 3(x+2)^2[/tex]

[tex]f(g(x)) = 3(x+2)^2[/tex]

By comparison, the expression in bracket represents g(x);

Hence;

[tex]g(x) = x + 2[/tex]

Replace g(x) with x

[tex]f(x) = 3(x)^2[/tex]

[tex]f(x) = 3x^2[/tex]

Hence, the possible expressions of f(x) and g(x) are:

[tex]f(x) = 3x^2[/tex] and [tex]g(x) = x + 2[/tex]

i need help i cant do this somebody plz A crew of highway workers paved 15 mile in 18 hour. If they work at the same rate, how much will they pave in one hour?

Answers

All you have to do is divide by 18 to find the speed at which they work per hour since they worked 18 hours. Your answer would be 15miles/18hours= 0.83miles per hour

A group of friends decide to buy bulk chocolate from a candy store. If some friends each want 15/13 kilograms of chocolate of the 30 kilograms purchased, then how many people can get a share of chocolate?

Answers

Answer:

Se elas quererem 15, duas pessoas. Mas, se quiserem 13, 2,3076923077

Step-by-step explanation:

30 dividido pra 2 dá 15.

help!!!!!!!!!!!!!!!!

Answers

Answer:

The solutions the equation 1 are -1.3 and 2. The solutions to equation 2 are -1 and 0.

Step-by-step explanation:

Isolate the absolute value for equation 1. Then, set two equations equal to 5 and -5.

3x - 1 = 5  and   3x - 1 = -5  

Solve for x in both and you would get -1.3 and 2.

Do the same for equation 2.

2x + 1 = -1   and   2x + 1 = 1

Solve for x and you would get -1 and 0.

Determine the slope of the lines parallel and perpendicular to -4x+3y=11

Answers

Answer:

parallel = 4/3

perpendicular =-3/4

Step-by-step explanation:

Solve for y

-4x+3y=11

Add 4x to each side

3y = 4x+11

Divide by 3

y = 4/3 x +11/3

This is in the form y = mx+b where m is the slope

m =4/3

The parallel line has the same slope

parallel slope is 4/3

The perpendicular line has a negative reciprocal slope

m = -(1 /4/3) = - 3/4

Answer:

[tex]\frac{4}{3}[/tex] and - [tex]\frac{3}{4}[/tex]

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

- 4x + 3y = 11 ( add 4x to both sides )

3y = 4x + 11 ( divide all terms by 3 )

y = [tex]\frac{4}{3}[/tex] x + [tex]\frac{11}{3}[/tex] ← in slope- intercept form

with slope m = [tex]\frac{4}{3}[/tex]

Parallel lines have equal slopes, thus

slope of parallel line = [tex]\frac{4}{3}[/tex]

Give a line with slope m then the slope of a line perpendicular to it is

[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{\frac{4}{3} }[/tex] = - [tex]\frac{3}{4}[/tex]

Which distribution is positively skewed?​

Answers

Answer:

D

Step-by-step explanation:

not positive but i think it would be D

Option C is the distributions are positively skewed.

Since, A distribution that is positively skewed would have the following highlights:

More points on the left, if represented on a dot plot

Tall bars on the left, if represented on a histogram

Whisker on the left, if represented on a box plot

The above means that none of the distributions are positively skewed.

This is so because:

A is negatively skewed because the whisker is at the right

B and C are symmetrical because there are tall bars at the middle

D is positively skewed because the whisker is at the left.

Hence, Option D is the distributions are positively skewed.

Read more about skewness at:

brainly.com/question/24309209

#SPJ2

−4(w+1)=−24 SIMPLIFY PLEASE HELP ASAP

Answers

Answer:

w = 5

Step-by-step explanation:

Expand brackets.

-4w - 4 = -24

Add 4 on both sides.

-4w = -20

Divide both sides by -4.

w = 5

Answer:

w=5

Step-by-step explanation:

First, you do -4 times w and -4 times 1, which equals -4w+-4.

Then, you take -4 to the other side and it becomes -24+4=-20.

Now, you have -4w= -20

Lastly, you you divide -20/-4= 5.

w=5

Sorry if this is wrong.

Help me somebody. I’m lost with this completely

Answers

Answer:

48,828,125

Step-by-step explanation:

PEMDAS

P: 5^2 = 25 (25^4*5^3)

E: 25^4 = 390625, 5^3=125 (390625*125)

M: 390625*125=48828125

D: n/a

A: n/a

S: n/a

Answer:

9765625

Step-by-step explanation:

I literraly used a calculator.

To determine the surface area and volume of a cone, the three values you need are the slant height, altitude, and Question 3 options: A) arc length. B) circumference. C) radius. D) diameter.

Answers

Answer:

radius is the other quantity needed, which appears listed as option C in the list of possible answers.

Step-by-step explanation:

Recall that the volume of a cone is given by the formula:

[tex]Vol=\frac{1}{3} B\,*\, H[/tex]

where B is the area of the base:

[tex]B=\pi\,R^2[/tex]

with R being the cone's radius at the base, and H the cone's height.

The formula for the surface area of the cone also needs the size of the radius.

Therefore, the radius is the other needed quantity.

Answer:

C) Radius.

Step-by-step explanation:

When looking at a shape like this is is crucial to know the circumference because Area is L*W*H In order to determine your width you will need the Radius.

Quinn makes 6 free throws, and Sam makes 3 free throws. what is the ratio?

Answers

Answer:

6:3

Step-by-step explanation:

the ratio of Quinn's throws to Sam's throws would be 6:3

Answer:

2:1

Ratio of Quinn's free throws to Sam's free throws

Find the value of a2 and square root b, when a=12 and b=9.

Answers

Answer:

147

Step-by-step explanation:

We want to find the value of a² + √b, so let's plug in 12 for a and 9 for b:

a² + √b

12² + √9

The square root of 9 is 3 because 3 * 3 = 9, while the square of 12 is 144 because 12 * 12 = 144.

144 + 3 = 147

The answer is thus 147.

~ an aesthetics lover

Michael Can skateboard 100 feet in 5.4 seconds how fast can Michael skateboard in miles per hour?

Answers

It is equivalent to 12.63 MPH Roughly :)

Write all the names of the quadrilateral shown.​

Answers

Answer:

see explanations

Step-by-step explanation:

The given figure has four equal sides, and all adjacent sides are perpendicular to each other.

Quadrilateral is a any figure with four sides.

Particular quadrilaterals have specific names.

A square is a quadrilateral with equal sides, each perpendicular to the adjacent side, as shown in the figure.

A rectangle is a quadrilateral of which all sides are perpendicular to the adjacents.  Therefore opposite sides are equal.  Adjacent sides MAY or MAY NOT be equal.   Therefore a square is also a rectangle.

A rhombus is a quadrilateral of which all four sides are equal, but adjacent sides MAY or MAY NOT be perpendicular.  Therefore a square is also a rhombus.

A trapezoid (or trapezium, depending on which side of the atlantic you live) is a quadrilateral with AT LEAST one pair of parallel sides.  The other pair may or may not be equal, may or may not be parallel.  Therefore a square is also a trapezoid (trapezium).

A quadrilateral is any plane figure with four sides, which may or may not be parallel, may or may not be equal, and adjacent sides may or may not be perpendicular.  Therefore a square is also a quadrilateral.

So the given figure could be given all six possible names indicated in bold.  However, the name square is most specific.

ols help and hurry ASAP Find m4+ 1/m4 , if m− 1/m =3.

Answers

Answer: 257/16

Step-by-step explanation:

You are given the algebraic expression: m^4+ 1/m^4

if m− 1/m = 3

Solve for m by cross multiplying

m - 1 = 3m

Collect the likes terms

3m - m = -1

2m = -1

m = -1/2

Substitutes m into the algebraic expression above.

(- 1/2)^4 + 1/(- 1/2)^4

Open the bracket

1/16 + 1/(1/16)

1/6 + 16

16(1/16) or 257/16

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