Could you please help me with this problem?

Answer:

Step-by-step explanation:

This question involves the concept of similar triangles.

The pair of triangles that are similar are "B and D".

A pair of triangles is termed as similar triangles if the two angles of both the triangles are equal to each other. Hence, we will check this condition for each pair given in the question.

A.

Only one angle is given to be equal for both the triangles, while the other two angles are unknown. Hence, this pair can not be termed as similar.

B.

For an isoceles triangle, two sides and two angles of the triangle are equal. Considering the 40° angle to be the equal angle, we can safely conclude that the two angles of both the triangles in the pair are the same. Hence, this pair can be termed as similar.

C.

Triangle 5 has angles: 30°, 90° and (180°-30°-90°) = 60°. While triangle 6 has angles: 30°, 70°, and (180°-70°-30°) = 80°. Since all the angles of both the triangles are different. Therefore, they can not be termed as similar.

D.

Triangle 7 has angles: 50°, 20° and (180°-50°-25°) = 105°. While triangle 6 has angles: 50°, 105°, and (180°-50°-105°) = 25°. Since all the angles of both the triangles are equal. Therefore, they can be termed as similar.

Answer:

3 hours

Step-by-step explanation:

200 x 3 = 600

Answer:

4 + w/8 = 2

Step-by-step explanation:

To Solve:

subtract 4 from each side to get:

w/8 = -2

cross-multiply to get:

w = -16

Check:

4 + (-16/8) = 2

4 + (-2) = 2

2 = 2

Answer:

;-;

Step-by-step explanation:

Nice ask you parent for help is all my advice ;-;

Answer:

x = 3/2y

y = 2/3x

Step-by-step explanation:

x = 3/2y

Swap sides so that all variable terms are on the left hand side

2x + 15 = 3y + 15

Subtract 15 from both sides

2x = 3y + 15 - 15

Subtract 15 from 15 to get 0

2x = 3y

Divide both sides by 2

2x/2= 3y/2

Dividing by 2 undoes the multiplication by 2

X = 3y/2

Y = 2/3x

Subtract 15 from both sides

3y = 2x + 15 - 15

Subtract 15 from 15 to get 0

3y = 2x

Divide both sides by 3

3/3y = 2/3x

Dividing by 3 undoes the multiplication by 3

y = 2/3x

Answer:

What are the questions

Step-by-step explanation:

Also that sucks

Usando proporciones, se encuentra que al final de la primera hora, el congelador tenía una temperatura de -1ºC.

La temperatura del congelador bajó en la misma cantidad de grados cada hora, o sea, en la primera hora, la cantidad que bajo es:

[tex]\frac{12}{3} = 4[/tex]

4ºC bajo a 3ºC es:

[tex]3 - 4 = -1[/tex]

O sea, al final de la primera hora, el congelador tenía una temperatura de -1ºC.

Un problema similar es dado en https://brainly.com/question/24617308

Answer:

110° = ∠AED

Step-by-step explanation:

Four sides polygon.  The sum of the angles = (n - 2)180; 4 - 2(180) = 360°

∠B + ∠D + ∠BCD + ∠DEB = 360°

92° + 98° + 86°  + ∠DEB = 360°

               276°  + ∠DEB = 360°

                          ∠DEB = 360° - 276°

                          ∠DEB = 84°  

Now ∠AEB + ∠BED + ∠AED = 360°    All exterior angles of any polygon = 360°

            166° + 84° + ∠AED = 360°

               250° + ∠AED = 360°

                 110° = ∠AED

Answer:

its B simple

Step-by-step explanation:

right on edg 2021

Step-by-step explanation:

Answer:

\(21 \sqrt{10}\)

Factor and rewrite the radicand in exponential form:\(7 \sqrt{3^{2} \times 10}\)

Rewrite the expression using \(\sqrt[n]{ab}=\sqrt[n]{a}\cdot\sqrt[n]{b}\):\(7 \sqrt{3^{2}} \times \sqrt{10}\)

Simplify the radical expression:\(7 \times 3 \sqrt{10}\)

Rewrite the expression:\((7 \times 3) \times \sqrt{10}\)

Calculate the product or quotient:\(21 \sqrt{10}\)

Answer: \(21 \sqrt{10}\)

The Question must be.. ____

Which expression is equivalent of 7/ 90

Answer:

answer below

Step-by-step explanation:

hope this helps

y=-⅔ here is the graph hope it will help you

Step-by-step explanation:

y directly proportional to X

y=kx

when k is constant

y is 25 and X is 120

25=k120

divide both sides by 120

25/120

k=25/120

there fore the law connecting is 25/120

what is the value of y when x = 72? 25/120*72=3

therefore y is 3

Answer:

7/3 or 2 1/3

Step-by-step explanation:

Answer:

is the answer 30?

Step-by-step explanation:

in JL, L alone is 10, and JL is a combined total. And in JK, K alone is 20.

So wouldn't the answer be 30 if you add up L and K?

Answer:

3 1/2

Step-by-step explanation:

remove the parentheses and rewrite the sum to (-2+5)+(-1/4+3/4) calculate it and it's 3+1/2 then you write it as a mixed number so then it's 3 1/2

Using the slope, it is found that the correct option is:

No, the contractor does not believe the roof is steep because the slope is 0.

Given two points, [tex](x_0, y_0)[/tex] and [tex](x_1, y_1)[/tex], the slope is given by change in y divided by change in x, that is:

[tex]m = \frac{\Delta_y}{\Delta_x} = \frac{y_1 - y_0}{x_1 - x_0}[/tex]

In this problem, y is always the same value, hence [tex]\Delta_y = 0[/tex] and [tex]m = 0[/tex], which means that the roof is not steep, and the correct option is:

No, the contractor does not believe the roof is steep because the slope is 0.

A similar problem is given at https://brainly.com/question/24674549

............................

➡️60

I think you shouldn't memorize any formula to solve it. But you should know that on the fahrenheit thermometer freezing point is 32 and the boiling point is 212. And in celcius, it is 0 and 100. So we can make the inference that changing 100 units in celcius corresponds to a change of 180 units in fahrenheit. Thus, we should ask that if celcius increase from 0 to 200, what would happen to fahrenheit.

Basic math:

While celcius increase 100, fahrenheit increase 180,

While celcius increase 200, fahreinheit increase 360.

And you shouldn't forget that fahrenheit's freezing point is 32.

32+increase(360)=392

Answer:

B and D

Step-by-step explanation:

Answer:

seventeen eighteenths

Step-by-step explanation:

all you need to do is multiply the numerator and denominator of the fraction 4/9 by 2. the numerator being the top number of 4 and the denominator being the bottom number of 9. just multiply the numbers by 2 in order that 4 becomes 8. remember whatever you do to the top you do to the bottom as well. so then you need to multiply the denominator 9 by 2 to become 18. just add the two numerators 8 and 9 to have 17 and since you're adding denominators it's going to remain 18. so now you have 17 over 18 or seventeen eighteenths.

Answer:

27 or 53

Step-by-step explanation:

53

Answer:

a horizontal translation and a glide reflection

Step-by-step explanation:

took it

D 1/3

The Coefficient of y/3 is 1/3

​

Answer:

1

Step-by-step explanation:

Answer:

$15

I don't know the percentage.

Step-by-step explanation:

50 + 50 = 100,    2 + 2 = 4,      .50 + .50 = 1

100 + 4 = 104 + 1 = 105

100 - 90 = 10 plus the 5 left-over = 15