2 years ago

Are triangles ABC and DEC congruent?

Mathematics

1 answer:

gizmo_the_mogwai [7]2 years ago

5 0

Yes, by AAS

(Please comment if you want explanation)

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What is 20% of 50naira?

Triss [41]

Answer:

Step-by-step explanation:

To find 20% of 50 you need to times 20 with 50 and divide by 100.

20×50÷100

=10

3 0

3 years ago

Kenny owned so many baseball cards that he sold 82 of them. After selling the cards he still had 159 left. Write and solve an eq

Anestetic [448]

<span>B. b - 82 = 159; 241 cards
</span>

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3 years ago

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0.8-4x=-0.4y 6x+0.4y=4.2 Which of the following shows the system with like terms aligned? 4x - 0.4y = -0.8 6x + 0.4y = 4.2 -4x +

Brut [27]

Answer: The correct option is option third .

Explanation:

The given equation are,

$0.8-4x=-0.4y\\6x+0.4y=4.2$

In the second equation the like terms are aligned, therefore, we have to aligened only first equation.

The first equation is,

$0.8-4x=-0.4y$

Subtract 0.8 from both the sides.

$0.8-4x-0.8=-0.4y-0.8$

$-4x=-0.4y-0.8$

Add 0.4y on both the sides.

$-4x+0.4y=-0.4y-0.8+0.4y$

$-4x+0.4y=-0.8$

So, after aligned the system of equation have two equations.

$-4x+0.4y=-0.8$

$6x+0.4y=4.2$

Both equation are show in third option, So third option is correct.

3 0

2 years ago

Read 2 more answers

3.(02.07)

oksano4ka [1.4K]

Answer:

A is the correct answer

Step-by-step explanation:

4 0

3 years ago

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Write the inverse function for the function, ƒ(x) =1/2 x + 4. Then, find the value of ƒ -1(4). Type your answers in the box

hjlf

First find x in terms of f(x)

1/2 x = f(x) + 4
x = 2(f(x) +4)
x = 2f(x) + 8
Now replace x by the inverse function f-1(x) and the f(x) by x

f-1(x) = 2x + 8

f-1 (4) = 2(4) + 8 = 16

5 0

3 years ago