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Svetach [21]
3 years ago
7

What is the vertex of the graph of the function f(x)=x^2+8x-2

Mathematics
2 answers:
Contact [7]3 years ago
7 0

-8,-2

Step-by-step explanation:

Sveta_85 [38]3 years ago
5 0

Answer:

(-8,-2)

Step-by-step explanation:

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Two arithmetic means between 3 and 24 are -
defon

The value of two arithmetic means which are inserted between 3 and 24 are 24/9 and 75/9.

<h3>What is arithmetic mean?</h3>

Arithmetic mean is the mean or average which is equal to the ratio of sum of all the group numbers to the total numbers.  

The two arithmetic means between 3 and 24 are has to be inserted.

3, A₂, A₃, 24

All the four numbers are in arithmetic progression. The nth terms of AM can be found using the following formula:

t(n)=a(n-1)d

Here, d is the common difference a is the first terms and n is the total term.  The first term, a=3 and t₄=24. Thus, the common difference is;

t(n)=a(n-1)d\\t(4)=3(4-1)d\\24=3(3)d\\24=9d\\d=\dfrac{24}{9}

The second and 3rd term are:

A₂=3+\dfrac{24}{9}=\dfrac{51}{9}\\ A₃=\dfrac{51}{9}+\dfrac{24}{9}=\dfrac{75}{9}

Thus, the value of two arithmetic means which are inserted between 3 and 24 are 24/9 and 75/9.

Learn more about the arithmetic mean here;

brainly.com/question/14831274

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8 0
2 years ago
Show me the steps to (3x+3)-(4x+8)=
Murljashka [212]
\rm (3x+3)-(4x+8)= \\ 3x+3-4x-8= \\ \\ \bold{Answer:-x-5}
3 0
3 years ago
Read 2 more answers
How do i find the perimeter and area?
Contact [7]

First, we need to find the base. To do so, we will need to use the Pythagorean Theorem on one of the smaller triangles to solve for its unknown side. Then, we can double the base of the one to find the base of the whole.

Pythagorean Theorem: a^2 + b^2 = c^2

(12)^2 + b^2 = (16)^2

144 + b^2 = 256

b^2 = 112

b = \sqrt{112}

b = 4\sqrt{7}

total base = 2 x 4\sqrt{7} = 8\sqrt{7}

Second, we can find the area. The formula for the area of a triangle is A = 1/2 x base x height.

A = 1/2 x 8\sqrt{7} x 12

A = 4\sqrt{7} x 12

A = 48\sqrt{7} units^2

Third, we can find the perimeter. The perimeter is the sum of all of the exterior sides.

P = 16 + 16 + 8\sqrt{7}

P = 32 + 8\sqrt{7} units

Hope this helps!! :)

6 0
3 years ago
Please solve... I will mark you brainliest
Arisa [49]

x=16\\m

7 0
2 years ago
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What phrase is a description of 2m + 7
Ostrovityanka [42]
7 more than twice a number
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