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4 years ago

15

PLZ HELP ASAP (GEOMETRY) SIMMILAR TRIANGLES

1 answer:

wlad13 [49]4 years ago

4 0

The correct option is (A) DEF

Explanation:
For similarity, one triangle has to be at least the scaled version of another. In the triangles given above as you can see:

The length of DE ( in DEF) = 5.5
The length of AB (in ABC) = 11 which is 2*(The length of DE ( in DEF))

Likewise
The length of EF( in DEF) = 2.5
The length of BC(in ABC) = 5 which is 2*(The length of EF ( in DEF))

Same goes for the third side.
Hence the correct option is (A) DEF

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Which expression is equivalent to 15x+50

NNADVOKAT [17]

You would use distributive property 5x(2×+x)+50

5 0

4 years ago

A homogeneous rectangular lamina has constant area density ρ. Find the moment of inertia of the lamina about one corner

frozen [14]

Answer:

$I_{corner} =\frac{\rho _{ab}}{3}(a^2+b^2)$

Step-by-step explanation:

By applying the concept of calculus;

the moment of inertia of the lamina about one corner $I_{corner}$ is:

$I_{corner} = \int\limits \int\limits_R (x^2+y^2) \rho d A \\ \\ I_{corner} = \int\limits^a_0\int\limits^b_0 \rho(x^2+y^2) dy dx$

where :

(a and b are the length and the breath of the rectangle respectively )

$I_{corner} = \rho \int\limits^a_0 {x^2y}+ \frac{y^3}{3} |^ {^ b}_{_0} \, dx$

$I_{corner} = \rho \int\limits^a_0 (bx^2 + \frac{b^3}{3})dx$

$I_{corner} = \rho [\frac{bx^3}{3}+ \frac{b^3x}{3}]^ {^ a} _{_0}$

$I_{corner} = \rho [\frac{a^3b}{3}+ \frac{ab^3}{3}]$

$I_{corner} =\frac{\rho _{ab}}{3}(a^2+b^2)$

Thus; the moment of inertia of the lamina about one corner is $I_{corner} =\frac{\rho _{ab}}{3}(a^2+b^2)$

7 0

3 years ago

azamat

It’s either A B C or D

7 0

3 years ago

Read 2 more answers

Suppose a poker hand contains seven cards rather than five. Compute the probabilities of the following poker hands: (a) a seven-

geniusboy [140]

Answer:

a) 0.00031

b) 0.0017

c) 0.31

d) 0.00018

Step-by-step explanation:

attached below is the detailed solution

Total number of 7-poker cards are 52P7 = 133784560

A) Determine the probabilities of Seven-card straight

probability of seven-card straight = 0.00031

B) Determine the probability of four cards of one rank and three of a different rank

P( four cards of one rank and three of different rank ) = 0.0017

C) Determine probability of three cards of one rank and two cards of each two different ranks

P( three cards one rank and two cards of two different ranks ) = 0.31

D) Determine probability of two cards of each of three different ranks and a card of a fourth rank

P ( two cards of each of three different ranks and a card of fourth rank ) = 0.00018

8 0

3 years ago

Dan used 4/10 of golf balls on Saturday. He then used 2/10 on Sunday what fraction more of the pack did dan use on Saturday? Dra

svp [43]

Answer:

2/10

Step-by-step explanation:

First you - 20 from 40 (aka 2/10 - 4/10) and you will get 20 (aka 2/10).

7 0

4 years ago