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taurus [48]
3 years ago
5

Look at the image and please help.

Mathematics
1 answer:
dem82 [27]3 years ago
8 0
How do we help u??? we can’t graph for u
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The areas of two similar triangles are 18 cm^2 and 8 cm^2. One of the sides of the first triangle is 4.5 cm. What is the length
Nataly_w [17]

Answer:

  3 cm

Step-by-step explanation:

The ratio of areas of similar figures is the square of the ratio of linear dimensions. That means the ratio of linear dimensions is the square root of the area ratio. The ratio of the smaller triangle dimensions to the larger is then ...

  k = √((8 cm^2)/(18 cm^2)) = √(4/9) = 2/3

Then the corresponding side of the smaller triangle is ...

... k · (4.5 cm) = (2/3)·(4.5 cm) = 3 cm

5 0
3 years ago
A roofer calculates his bid price using the formula P = 1.85s + 4.2f, where s is the area of the roof in square feet and f is th
solmaris [256]

Answer: 1,811 square foot

Step-by-step explanation:

Hi, to answer this question we have to solve the equation given, by substituting P = 4,148 and f=190 in the equation.

P = 1.85s + 4.2f

4,148 = 1.85s +4.2 (190)

Solving for s:

4,148 = 1.85s +798

4,148-798 =1.85s

3,350 = 1.85s

3,350/1.85 =s

s = 1,810.81 = 1,811 square foot  (rounded)

Feel free to ask for more if needed or if you did not understand something.

8 0
3 years ago
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Hi guys can u pls help me with this problem thanx
salantis [7]

Answer:

\frac{1}{4} left

Step-by-step explanation:

The question says she used \frac{1}{2} of it, so she probably used \frac{1}{2} of it. I'm assuming this is an error in the question, and it should be asking how much is left. To solve for that:

\frac{3}{4} - \frac{1}{2}

make denominators equal

(\frac{2}{2} × \frac{3}{4}) - (\frac{1}{2} × \frac{4}{4})

\frac{6}{8} - \frac{4}{8}

\frac{2}{8}

\frac{1}{4}

8 0
3 years ago
A restaurant employs five people. The two cooks
shusha [124]

Answer:

Step-by-step explanation:

explain the question pls so I can help

6 0
2 years ago
Which of the following inequalities matches the graph?
Monica [59]

Answer:

x>-7

Step-by-step explanation:

8 0
3 years ago
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