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liubo4ka [24]
3 years ago
11

SOS! Can some please help me!

Mathematics
2 answers:
Wewaii [24]3 years ago
8 0

Answer:

8.9

Step-by-step explanation:

1. DE:BC=AD:AB

2. AD=AB+BD, but according to the conditions AB=5, then

AD=5+BD.

3. after the substitution DE=16; BC=9; AB=5 and AD=5+BD into the formula:

16:9=(5+BD):5;

\frac{16}{9} =\frac{BD+5}{5};

BD=80/9 - 5≈3.9.

4. if AD=AB+BD, then AD=5+3,9=8,9

DIA [1.3K]3 years ago
4 0

Answer:

8.9 is your answer to the question

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What is the slope of a line that is perpendicular to the line represented by the equation 2x−5=−y?
Liula [17]

Answer:

\frac{1}{2}

Step-by-step explanation:

First, you need to get the equation into y = mx + b form, like this:

Add y to both sides to get y + 2x − 5= 0

Then subtract 2x to get y - 5 = -2x

Add 5 to get y = -2x + 5

Now we know the slope is -2, or -2/1.

A line that is perpendicular to it has a slope that is the first line's slope's opposite reciprocal. This means flip the fraction upside down and change the sign, which gives you positive 1/2.

3 0
3 years ago
Write as a percentage
Julli [10]

Answer:

100\%

Step-by-step explanation:

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8 0
3 years ago
1. 16 is what percent of 40?
jonny [76]

Answer:

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Step-by-step explanation:

sloution is 16/40 only this we can get answer

4 0
4 years ago
Jane Marko buys a car for $43,900.00. In three years, the car depreciates 48% in value. How much is the car worth in three years
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I need help finding missing angles ​
Citrus2011 [14]

Answer:

1 = 128 degrees

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3 = 47 degrees

4 = 133 degrees

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Step-by-step explanation:

angle 2 and 52 degrees are corresponding angles so they are equal.

angle 3 and 47 degrees are corresponding angles so they are equal.

angles 1 and 2 are supplementary angles so their sum is 180 degrees.

angles 3 and 4 are supplementary angles so their sum is 180 degrees.

angle 5 = 180 - 52 - 47 = 81 degrees

8 0
3 years ago
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