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Debora [2.8K]
3 years ago
13

The corresponding sides of abc and def have equal lengths. the area of abc is 4 square units, and the longest side of def is 5 u

nits long. What is the area of def
Mathematics
2 answers:
seropon [69]3 years ago
7 0

Answer:

4 units

Step-by-step explanation:

borishaifa [10]3 years ago
3 0
1. "<span>The corresponding sides of (triangles) abc and def have equal lengths.</span>" means that the triangles are congruent, that is exactly identical, by the Side Side Side (SSS) postulate.

2. 2 congruent triangle, have equal area

3. A(DEF)=A(ABC)=4 square units

Answer: 4 units squared
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Can Someone Help REAL QUICK Me. ? Please
bagirrra123 [75]

Answer: Option 3

Step-by-step explanation:

You can make equivalent fractions by multiplying or dividing both top and bottom by the same amount. You only multiply or divide, never add or subtract, to get an equivalent fraction.

I hope this helps.

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3 years ago
Earth's radius is approximately 3960 miles. What is the approximate surface area of
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Answer:

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Step-by-step explanation:

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2 years ago
Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil.
Licemer1 [7]
So,

We are trying to find the compound probability of there BEING oil and the test predicting NO oil.

The percent chance of there actually being oil is 45%.  We can convert this into fraction form and simplify it.

45% --> \frac{45}{100}

\frac{45}{100}--\ \textgreater \  \frac{3*3*5}{2*2*5*5}

\frac{3*3*5}{2*2*5*5}--\ \textgreater \ \frac{3*3}{2*2*5}

\frac{3*3}{2*2*5}--\ \textgreater \  \frac{9}{20}

That is the simplified fraction form.

The kit has an 80% accuracy rate.  Since we are assuming that the land has oil, we need the probability that the kit predicts no oil.  

The probability that the kit detects no oil will be the chance that the kit is not accurate, which is 20% (100 - 80 = 20).  We can also convert this into fraction form and simplify it.

20% --> \frac{20}{100}

\frac{20}{100}--\ \textgreater \ \frac{2}{10}

\frac{2}{10}--\ \textgreater \ \frac{1}{5}

That is the probability of the kit not being accurate (not predicting any oil).

To find the compound probability of there being oil and the kit not predicting any oil, we simply multiply both fractions together.

\frac{9}{20}*\frac{1}{5}

\frac{9}{20*5}

\frac{9}{100}

So the probability of there BEING oil and the kit predicting NO oil is 9 in 100 chances.
3 0
3 years ago
Read 2 more answers
Maggie has 20 ribbons. 2/5 of the ribbons are polka-dotted ribbons. How many ribbons are not polka - dotted?
Cerrena [4.2K]
3/5 are not polka dotted, so first find 1/5. 20/5 is 4, so 1/5=4. 4x3 is 12 ribbons. Hope this helped!
6 0
3 years ago
2. A plumber uses 16 inches of tubing to
BaLLatris [955]
Well he says he needs 16 inches of tubing for each washing machine and he is trying to install 18 washing machines. 
sooo all we have to do is multiply 16 times 18
lets do the math:)
16 x 18 = 288
whats your answer? well its 288 inches of tubing 
have a good one:) 

merry christmas:D
4 0
3 years ago
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