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FinnZ [79.3K]
4 years ago
15

When A’B’C’ is reflected across the line x= -2 to from A”B”C”, vertex ___ of A”B”C” will have the same coordinates as B’

Mathematics
1 answer:
Lesechka [4]4 years ago
8 0

Answer: B''

This is because point B' has x coordinate x = -2. This point is directly on the mirroring line, so it doesn't move when the reflection is applied.

We can write B' = B''

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What are the first three terms of the sequence defined by f(x) = 3x + 1 f ( x ) = 3 x + 1, starting with LaTeX: x=5 x = 5 ?
podryga [215]

Answer:

The first three terms of the sequence is 16,49,148.

Step-by-step explanation:

Given : Function f(x)=3x+1, starting with x=5.

To find : What are the first three terms of the sequence defined by function ?

Solution :

To find the first three terms of the sequence, substitute the value of x in the function.

f(x)=3x+1

Input at x=5,

f(5)=3(5)+1

f(5)=15+1

f(5)=16

Input at x=16,

f(16)=3(16)+1

f(16)=48+1

f(16)=49

Input at x=49,

f(49)=3(49)+1

f(49)=147+1

f(49)=148

Therefore, The first three terms of the sequence is 16,49,148.

8 0
3 years ago
Which is not Equivalent to 3:5 <br> A.30:50<br> B.21:28<br> C:15:28<br> D.9:15
kirza4 [7]

Answer:

B.

Step-by-step explanation:

Since 21 is divided by 3 you might think that it is equivalent but remeber you have to divide by both sides, so if you divide 21 by 7 it works but 28 by seven does not! Hope this helps!

3 0
3 years ago
there is a 750 ml bottle of concentrate orange squash it is enough to make fifteen 250 ml glasses of diluted orange drink how mu
Anarel [89]
15 \times 250 \ ml=3750 \ ml
Fifteen 250 ml glasses contain 3750 ml of the drink, and 750 ml of orange squash.
3750 \ ml - 750 \ ml=3000 \ ml
There are 3000 ml of water in 3750 ml of the drink.

3000 ml of water - 3750 ml of the drink
x l of water - 10 l of the drink

\frac{3000 \ ml}{3750 \ ml}=\frac{x \ l}{10 \ l} \\&#10;3750x=10 \times 3000 \\&#10;3750x=30 000 \\&#10;x=8

8 litres of water are needed to make 10 litres of this drink.
4 0
3 years ago
Sharon drops a rubber ball from a height of 160 feet. Every bounce sends the ball half as high as it was before.
neonofarm [45]

Answer:

10 feet

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
I will award 50 points and brainliest to the best proof with explanation :D
lisov135 [29]

Step-by-step explanation:

(You might need to draw the triangle on a piece of paper to follow)

First I tried to find the height in terms of<em> a</em>.  

If you draw the height in, the triangle is cut in half. That half triangle is a right triangle.  

Using the Pythagoras theorem you can find out the height. Since you know that the hypotenuse is also <em>a </em>(because it's an equilateral triangle) the equation would be:

(a/2)² + h² = a²

Assuming that h = height

(It's a/2 because when you cut the triangle in half, the base of the right triangle became a/2)

This equation is simplified:

a²/4 + h² = a²

a² + 4h = 4a²

4h = 3a²

h² = 3a²/4

Now, remeber that everything is squared so it should be

h = a√3/2

Now we have the height. To get the area we need to multiply it by the base, which is <em>a, </em>and then divide it by 2<em>.</em>

a√3/2 × a ÷ 2

a²√3/2 ÷ 2

a²√3/4

And there you go. Thats the area.

6 0
3 years ago
Read 2 more answers
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