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yuradex [85]
2 years ago
12

X²+10+7=0 by completing the square

Mathematics
2 answers:
Leviafan [203]2 years ago
7 0

Answer:

x=−5+3–√2

x=−5−3–√2

Step-by-step explanation:

love history [14]2 years ago
6 0

i only see numbers not no square

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Maybe the answer will be C. P ( A and B )

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A new cookie cake company is offering a
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Answer:

200.96in^2

Step-by-step explanation:

If the 1st cookie cake is 8" for its diameter and the 2nd cookie cake will have twice the length diameter of the 1st cookie cake .You will do 2 × 8 to get the diameter of the 2nd cookie cake.

First cookie cake diameter is 8".

Second cookie cake's diameter is 16".

Since we need the radius to find the area of the 2nd cookie cake we're going to do 16 / 2 which equals 8 so 8 is the radius.

A=(pi)r^2

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3 years ago
the school decides to raise prices of lunches. The old price for a lunch was $0.75 . Seth buys the school lunch 5 days a week. w
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Answer:

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Step-by-step explanation:


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3 years ago
You measure 22 textbooks' weights, and find they have a mean weight of 64 ounces. Assume the population standard deviation is 5.
lara31 [8.8K]

Answer:

Step-by-step explanation:

We want to determine a 90% confidence interval for the true population mean textbook weight.

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= mean ± z ×standard deviation/√n

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= 64 ± 1.645 × 1.087

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3 years ago
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Algebra is a lot like arithmetic which means it follows all the rules of arithmetic, and it still uses the four main operations that arithmetic is built on.

In arithmetic, the only thing that was unknown was the answer to the problem. For example, 39 + 2 = 41.  In algebra, we use a variable to represent the number. A variable is a letter that represents any number. The most common variable is "x".

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