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2 years ago

So my grade is an A with 98% ans there us fins assignment thats 30 points of I don’t do it how much will my grade go down :(

Mathematics

1 answer:

Alchen [17]2 years ago

5 0

Answer:

30/100=30%. 98-30%=68%, which will be your new grade. That is usually a D

Step-by-step explanation:

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emmainna [20.7K]

Answer:

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Step-by-step explanation:

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2 years ago

A heated piece of metal cools according to the function c(x) = (.5)x − 11, where x is measured in hours. A device is added that

e-lub [12.9K]

16.5 degrees below the starting temp, whatever that is. If its 0, then -16.5 degrees.

The first equation would be (.5)5-11=-8.5, because the metal has been cooling for 5 hours.

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You then add -8.5 and -8, because the device has lowered 8.5 degrees and 8 degrees. This equals -16.5 degrees, or a decrease of 16.5 degrees.

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2 years ago

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bulgar [2K]

Answer:

A.1 square and 4 triangles

Step-by-step explanation:

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The net therefore has 1 Square and 4 Triangles.

A net is given in the attached diagram:

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2 years ago

A line passes through the point (-6, 5) and has a slope of -3.

Sunny_sXe [5.5K]

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Step-by-step explanation:

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2 years ago

Suppose S and T are mutually exclusive events. Find P(S or T) if P(S) = 8/9 and P(T) = 1/10.

blsea [12.9K]

Answer:

$\textbf{$P(S \cap T) = \frac{89}{90}$ }\\$

Step-by-step explanation:

$\textup{Mutually events are events that cannot occur at the same time.}\\\textup{When you toss a coin you get only $head$ or only $tail$ but never both.}\\ \textup{In mathematical terms $P(A) \cup P(B) = 0$, where $A$ and $B$ are mutually exclusive events. }\\\textup{We know the formula:}\\$$ P(A \cup B) = P(A) + P(B) - P(A \cup B) $$\\\textup{When $A$ and $B$ are mutually exclusive, it will simply be:}\\$$ P(A \cup B) = P(A) + P(B) $$\\\textup{Now given:}\\ $P(S) = 8/9$ , $P(T) = 1/10$\\$

$\implies P(S \cup T) = \frac{89}{10}$

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2 years ago