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olga2289 [7]
4 years ago
12

How do you solve c2+10c+9=0

Mathematics
1 answer:
Valentin [98]4 years ago
8 0

Answer:

Step-by-step explanation:

Step 1: Factor left side of equation.

(c+1)(c+9)=0

Step 2: Set factors equal to 0.

c+1=0 or c+9=0

c=−1 or c=−9

C= -1  OR C= -9

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A doctor has a annual income of 125,125 the income tax doctor has to pay 6%
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Answer:

The doctor has to pay $7507.50 in income tax.

Step-by-step explanation:

125,125*.06=7507.50

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The farmer planted an equal number of each type of tree.oak trees were one of the 3 types of trees planted.what was the total nu
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How much trees are in total ? 

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The vertices of a triangle are A(2,4),B(-1,-3),and C(3,6). Find the new vertices. Use the rule (x,y) >>>(x-3,y+5)to tra
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Answer:

A(-1,9), B(-4,2) and C(0,11)

Step-by-step explanation:

The vertices of a triangle are A(2,4),B(-1,-3),and C(3,6).

To translate, we use the rule (x,y) >>>(x-3,y+5)

For Vertex A(2,4),

The new vertex is (2-3, 4+5)=(-1,9)

For Vertex B(-1,-3)

The new vertex is (-1-3,-3+5)=(-4,2)

For Vertex C(3,6)

The new vertex is (3-3,6+5)=(0,11)

After translation of Vertex A, B and C by the given rule, the new points are A(-1,9), B(-4,2) and C(0,11)

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3 years ago
Write two fractions both not positive whose product is 5/8
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-10/16, -20/32. I hope my answer helps. :)
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4 years ago
In 1997, the average household expenditure for energy was $1,338, according to data obtained from the U.S. Department of Energy.
makvit [3.9K]

Answer:

Null hypothesis H0: µ = $1,338

Alternative hypothesis Ha: µ ≠ $1,338

Which means;

Null hypothesis H0; the average household expenditure for energy is equal to $1,338

Alternative hypothesis Ha; the average household expenditure for energy is not equal to $1,338

Step-by-step explanation:

The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean. While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.

Therefore, for the case above;

Null hypothesis H0: µ = $1,338

Alternative hypothesis Ha: µ ≠ $1,338

Which means;

Null hypothesis H0; the average household expenditure for energy is equal to $1,338

Alternative hypothesis Ha; the average household expenditure for energy is not equal to $1,338

6 0
3 years ago
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