All categories

3 years ago

Ppppppppppllllllllls I need helppppppp

Mathematics

1 answer:

Phantasy [73]3 years ago

5 0

Answer:

ΔABC≅ΔDEC by AAS

Step-by-step explanation:

You can use the AAS method of congruency.

Since you already have <BAC and <EDC congruent to eachother, and sides BC and EC congruent to each other, you only need that one remaining angle in between. <ACB can be proven congruent to <DCE by the Vertical Angles Theorem, and that gives you the AAS you need to prove that these two triangles are congruent

Hope this helped.

You might be interested in

Help! A glass of hot cider is 105°C at the time t = 0. It is surrounded by air at a constant temperature of 25°C . If stirred, i

julia-pushkina [17]

It takes 2.45 seconds for the temperature of the glass of hot cider to be 94°C

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

The temperature of the glass cider (C) at time t is given by:

$C(t)=25+80(1.062)^t\\\\When\ C=94^oC,hence:\\\\94=25+80(1.062)^{-t}\\\\t=2.45\ s$

It takes 2.45 seconds for the temperature of the glass of hot cider to be 94°C

Find out more on equation at: brainly.com/question/2972832

#SPJ1

8 0

2 years ago

Jin is training for the 50 meter dash. Each day that he trains, he runs the dash six times. Last week, he trained for four days.

iragen [17]

Answer:

1 1/2 kilometers

Step-by-step explanation:

If he runs 3000 meters every day and then trains for 5 days that means he ran 1 1/2 kilometers

3 0

3 years ago

A STORY OF UNITS

Aleks04 [339]

Answer:

<em>$40 </em>will be the total cost of the ribbon.

Step-by-step explanation:

To find the cost of ribbon to be put on the edges of rectangular banner, we need to:

1. Find the perimeter of the rectangle.

2. Multiply the perimeter with the per foot cost to find the total cost.

Let us find the perimeter first:

Perimeter of a rectangle is given as:

$P = 2 \times \text{(length+width)}$

Here, the dimensions of rectangle are 4ft by 6ft.

So, perimeter = $2 \times (4+6) \Rightarrow 20\ ft$

It is given that per foot cost is $2.

Total cost of the ribbon = $2 \times 20 \Rightarrow $40$

<em>$40 </em>will be the total cost of the ribbon.

7 0

4 years ago

A board is 29ft long. The second piece is 4 times longer than the first. The third piece is 3 times longer than the second. What

Nady [450]

Answer:

Length of first piece = 1.7058823 ft

Length of second piece = 4(1.7058823) = 6.82352941 ft

Length of third piece = 12(1.7058823) = 20.47058823 ft

Step-by-step explanation:

As given, Total length of the board = 29 ft

Let the board is divided into 3 pieces

Suppose that the length of first piece = x ft

As given, the second piece is 4 times longer than the first

⇒Length of second piece = 4x ft

Also given, the third piece is 3 times longer than the second.

⇒Length of third piece = 3(4x) = 12x ft

Now,

As total length of board = 29

⇒ x + 4x + 12x = 29

⇒ 17x = 29

⇒ x = $\frac{29}{17}$ = 1.7058823 ft

∴ we get

Length of first piece = 1.7058823 ft

Length of second piece = 4(1.7058823) = 6.82352941 ft

Length of third piece = 12(1.7058823) = 20.47058823 ft

5 0

3 years ago

Solve the equation log^7b>2

ahrayia [7]

Answer:

b > 12.71

Step-by-step explanation:

Here in this question we have to solve the inequality equation given for b (An unknown variable}

Now, the equation is $(\log b)^{7} > 2$

⇒ $\log b > 2^{\frac{1}{7} }$

We are taking the base of the log here is 10.

So, $10^{(\log b)} > 10^{2^{\frac{1}{7} } }$ {Since $10^{\log x} =x$ and $e^{\ln x} = x$ }

⇒ b > 12.71 (Approximate) (Answer)

3 0

3 years ago

Ppppppppppllllllllls I need helppppppp​

Ppppppppppllllllllls I need helppppppp