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Leto [7]
3 years ago
9

Fin the vertex: y=2x^2+12x+5

Mathematics
1 answer:
densk [106]3 years ago
4 0

Answer:

(-3,-13)

Step-by-step explanation:

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An electrician cuts a 136 foot long piece of cable. One piece is 16 feet less than 3 times the length of the other piece. Find t
Ugo [173]

Answer:

98 ft  and   38 ft

Step-by-step explanation:

We know that the initial length of the piece is  136 feet

Then the piece is cut into two pieces.

Let's call x the length of the first piece  of cable and call z the length of the second piece of cable.

So we know that

x + z = 136

and

x = 3z-16

Now we substitute the second equation in the first one and solve for the variable z

3z-16 + z = 136

4z-16= 136

4z= 136+16

z= \frac{152}{4}

z=38\ ft

Now we find the length x

x + 38 = 136

x= 136-38

x= 98\ ft

7 0
4 years ago
Not Math, I know, but I'd like your opinion.
Gwar [14]

Answer:

I think that gives remind  us of how pictures lokked back then and because that is what they used back then and it tells me is old

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
HELP ME !! AND EXPLAIN HOW YOU GOT IT.
Juli2301 [7.4K]

Answer: G = 50°, I = 50°, H = 80°

Step-by-step explanation:

First and foremos, the sum of three angles of a triangle is 180°

2x + 2x + (4x - 20) = 180°

8x - 20 = 180°

8x = 180° + 20 (adding 20 on both sides)

8x = 200°

x = 200/8

x = 25

The value of the angles can be found by replacing the value of x with 25

2x = 2 x 25 = 50°

Therefore, the angle of two angles are 50°

And the other is (4 x 25) -20 = 80°

4 0
3 years ago
How can base-ten blocks be used to divide by a two-digit divisor? Explain.
NISA [10]

Answer:

it can be shown that one ten base block is used to break down the number with one value blocks.

Step-by-step explanation:

6 0
3 years ago
2. The height of one square pyramid is 12 m. A similar pyramid has a height of 6 m. The volume of the larger pyramid is 400 m3.
kvv77 [185]
 a) 6 m / 12 m = 1/2 is the right answer
5 0
3 years ago
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