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3 years ago

Indicate whether the measures 3.1, 4.8, and 10.2 can be the side lengths of a triangle. If they can, classify the triangle.

Mathematics

1 answer:

stira [4]3 years ago

3 0

Answer:

Step-by-step explanation:

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Given:3(x-4)=2x+7 prove: x=19 proof:

spayn [35]

3(19-4)=2(19)+7
distribute the 3
57-12=38+7
45=45

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3 years ago

Jenny runs a daycare center and charges $60 per day for each child. There are currently 50 children enrolled at the daycare. At

Nutka1998 [239]

Answer:

Step-by-step explanation:

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3 years ago

Please help me,I give up on this.i just don’t get it.

Stolb23 [73]

Answer:

$y = -\frac{4}{5} x - \frac{14}{5}$
$y = \frac{5}{4} x -11$

Step-by-step explanation:

Given line ;

$y = \frac{5}{4} x -3\\\\m = slope\\m = \frac{5}{4}$

1. Perpendicular and passes through (4,-6)

$m_1 = \frac{5}{4} \\\\m_2 = \frac{-1}{m_1} \\\\m_2 = \frac{-1}{\frac{5}{4} } \\\\m_2 = -\frac{4}{5} \\\\(4,-6)=(x ,y)\\$

Substitute the values above into slope intercept form ; y=mx+b and solve for b.

$y =mx+b\\\\-6 = -\frac{4}{5} (4) + b\\\\-6 = -\frac{16}{5} + b\\\\-6 + \frac{16}{5} = b\\\\-\frac{14}{5} = b\\\\b = -\frac{14}{5}\\\\m = - \frac{4}{5}$

Substitute new values into ; y =mx+b.

$y = -\frac{4}{5} (x)- (\frac{14}{5} )\\\\y = -\frac{4}{5} x - \frac{14}{5}$

2.Parallel and passes through (4,-6)

$m = \frac{5}{4} \\\\(4,-6)=(x_1,y_1)$

Substitute values into point slope form and simplify

$y-y_1=m(x-x_1)\\\\y - (-6) = \frac{5}{4} (x -4)\\\\y+6 = \frac{5}{4} x -5\\\\y = \frac{5}{4} x -5-6\\\\y = \frac{5}{4} x -11$

8 0

4 years ago

Maya is signing her daughter up for summer activities. Some of the activities cost $10, and some of them cost $20. Maya pays a t

Anna [14]

Answer:

the answer should be A. The $10 activities total up to $50 and the $20 activities total up to $80 which would total to $130

Step-by-step explanation:

8 0

3 years ago

Round 4.75 to the nearest whole number

wolverine [178]

5. In 4.75 the 7 makes it round up to 5

8 0

3 years ago

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