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Licemer1 [7]
3 years ago
14

Will give BRAINLIEST if right!

Mathematics
1 answer:
sattari [20]3 years ago
8 0

Answer:

Vertex is (-1, -9)

Step-by-step explanation:

To find the x-value of the vertex, we use the formula

x

=

−

b

2

a

(This is considered the axis of symmetry).

a

=

1

and

b

=

2

with

c

=

−

8

(These are the numbers in order)

By substituting we get

x

=

−

(

2

)

2

⋅

1

, which simplifies to

x

=

−

1

.

Once you find x, substitute back into the equation to find y.

y

=

(

−

1

)

2

+

2

(

−

1

)

−

8

y

=

1

−

2

−

8

y

=

−

9

Putting the two numbers together you get the coordinates

(

−

1

,

−

9

)

.

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a chocolate chip cookie has 10 more calories than an ice cream cone. together they have a total of 310 calories.
jasenka [17]

Answer:

The total would be 300

Step-by-step explanation:

310

-10

-----

300

5 0
3 years ago
Two trains are 480 miles apart. They start at the same time, and travel towards one another. The difference between the speeds o
Genrish500 [490]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
What is the decimal number of 100/2​
Marina86 [1]
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4 0
2 years ago
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GREYUIT [131]

Answer:

x = 5.75

Step-by-step explanation:

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But; 4^(x+7) = 2^2(x+7)

8^(2x-3) = 2^3(2x-3)

2^2(x+7) = 2^3(2x-3)

Since the bases are the same;

2(x+7) = 3(2x-3)

2x + 14 = 6x -9

14 + 9 = 6x - 2x

23 = 4x

x = 23/4

<u>x = 5.75</u>

3 0
3 years ago
The radius of a circle is 7cm. Find the circumference of the circle. Use 22/7 for pi
finlep [7]

Answer:

Hi I'm learning the same thing and I just got it I think it's C=43.98cm

8 0
2 years ago
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