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4 years ago

Help please. I need the statement to prove false

Mathematics

1 answer:

guapka [62]4 years ago

4 0

The statement is false because not all shapes that have 3 sides are polygons, theres many shapes that have three sides, and they aren't triangles :/

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In this diagram, bac~edf. if the area of bac= 6 in.², what is the area of edf? PLZ HELP PLZ PLZ PLZ

Bad White [126]

Answer:

2.7 in²

Step-by-step explanation:

Since ∆BAC and ∆EDF are similar, therefore, the ratio of their area = square of the ratio of their corresponding side lengths.

Thus, if area of ∆EDF = x, area of ∆BAC = 6 in², EF = 2 in, BC = 3 in, therefore:

$\frac{6}{x} = (\frac{3}{2})^2$

$\frac{6}{x} = (1.5)^2$

$\frac{6}{x} = 2.25$

$\frac{6}{x}*x = 2.25*x$

$6 = 2.25x$

$\frac{6}{2.25} = \frac{2.25x}{2.25}$

$2.67 = x$

$x = 2.7 in^2$ (nearest tenth)

3 0

3 years ago

Matching graphs with their correct equations. Someone please help!!

tensa zangetsu [6.8K]

I believe the answer is C

3 0

3 years ago

Jack bought a stereo on sale for $231 . The original price was $385 . What was the percent of decrease in a price

Alenkinab [10]

231 / 385 = 0.6 diving the price it is by the price is was gives the answer
= 60%

8 0

3 years ago

Can someone please help me on this

Karolina [17]

it is a because it is the line is in the spot we're it is ststop to go

8 0

3 years ago

The total cost in dollars for Larry to have his birthday party at a local

luda_lava [24]

Answer:

$0 \leq p < 6$

Step-by-step explanation:

Given

$t = 6.95p + 29.95$

$Amount = 70$

Required

Determine the domain

First, we need to solve for p

Substitute 70 for t in $t = 6.95p + 29.95$

$70 = 6.95p + 29.95$

Collect Like Terms

$6.95p = 70 - 29.95$

$6.95p = 40.05$

Solve for p

$p = 40.05/6.95$

$p = 5.76$

This implies that Larry can not invite up to 6 people.

Hence, the domain can be represented as: $0 \leq p < 6$

7 0

3 years ago