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olya-2409 [2.1K]
3 years ago
10

Need ASAP 20 points !

Mathematics
1 answer:
AlladinOne [14]3 years ago
4 0

Answer:

X = 116

Step-by-step explanation:

Total heptagon angle = 900

124 + 120 + 122 + 136 + 144 + 138 = 784

900 - 784 = 116

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Find the solutions to the equation 16x^2-64=0
Sergeu [11.5K]

0=16x^2-64=16(x^2-4) = 16(x+2)(x-2)


x=-2 or x=2


4 0
3 years ago
Read 2 more answers
A tree initially measured 27 1/2 feet tall. Over the next 3 1/2 years, it grew to a final height of 35 1/2 feet. During those 3
Katen [24]

Answer:

10.14 feet per year.

Step-by-step explanation:

Given:

Over the next 3 1/2 years, a tree grew to a final height of 35 1/2 feet.

Question asked:

During those 3 1/2 years, what was the average yearly growth rate of the height of the tree?

Solution:

We can find the average yearly growth rate by using average formula, taking

final height of the tree as sum of observation and time span taken to growth as number of observation:-

As we know:

Average=\frac{Sum\ of\ observation}{number \ of\ observation}

             =35\frac{1}{2} \div3\frac{1}{2} \\ \\ =\frac{71}{2} \div\frac{7}{2} \\ \\ =\frac{71}{2}\times\frac{2}{7} \\ \\ =\frac{142}{14} =10.14\ feet

Thus, during 3\frac{1}{2} \ years, the average yearly growth rate of the height of the tree was 10.14 feet per year

5 0
4 years ago
There are 203 apples in a basket. How many children can share these apples equally? How many apples would each child get? List a
saveliy_v [14]
If there were 7 children, each child would receive 29 apples.
If there were 29 children, each child would receive 7 apples.
If there were 203 children, each child would receive 1 apple.

All I used was finding factors and their pairs so I could find how many children and how many apples they would receive.
3 0
3 years ago
Integral from 0 to 5 of x^2 + 3 dx
Alla [95]

Answer:

=170/3 or (decimal 56.67)

Step-by-step explanation:

Steps

∫⁵ x²+3dx

⁰

Apply the Sum Rule: ∫fx) + gx) dx = ∫f(x)dx +-∫ g(x)

dx

∫⁵ x² dx +∫⁵ 3dx

⁰ ⁰

∫⁵ x² dx=125/3

⁰

∫⁵ 3dx=15

⁰

125/3+15

=170/3

4 0
2 years ago
What is g(x)?
Bad White [126]

Answer:

I don't really understand the question

Step-by-step explanation:

I don't know

4 0
4 years ago
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