﻿ Lee and Jessie swam towards each other from opposite sides of a lake that is 3.9km wide. They began swimming at 2:00 P.M. and met at 2:30 P.M. Lee's speed was 1km/h greater than Jessie's speed. Find their speeds - AssignmentGrade.com

# Lee and Jessie swam towards each other from opposite sides of a lake that is 3.9km wide. They began swimming at 2:00 P.M. and met at 2:30 P.M. Lee's speed was 1km/h greater than Jessie's speed. Find their speeds

QUESTION POSTED AT 22/02/2020 - 07:15 PM

### Answered by admin AT 22/02/2020 - 07:15 PM

WHAT THE  HACK THIS MAKES NO SENCE

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The answer is b) Mia is closer because her distance to the chest is opposite the smaller angle.

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QUESTION POSTED AT 30/03/2020 - 01:30 AM

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v1 x v2 = -7*1 + 8*0 = -7
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cosθ = (v1 x v2) /|v1||v2| = -7/(√113 *1) = -0.659

ANSWERED AT 30/03/2020 - 01:28 AM

QUESTION POSTED AT 30/03/2020 - 01:28 AM

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ANSWERED AT 29/03/2020 - 06:35 PM

QUESTION POSTED AT 29/03/2020 - 06:35 PM

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ANSWERED AT 29/03/2020 - 06:34 PM

QUESTION POSTED AT 29/03/2020 - 06:34 PM

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ANSWERED AT 29/03/2020 - 06:31 PM

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ANSWERED AT 29/03/2020 - 06:31 PM

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ANSWERED AT 29/03/2020 - 06:30 PM

QUESTION POSTED AT 29/03/2020 - 06:30 PM

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ANSWERED AT 29/03/2020 - 06:29 PM

QUESTION POSTED AT 29/03/2020 - 06:29 PM

### ANSWER FAST PLZZZ Which polygons are congruent? Select each correct answer. Two right scalene triangles labeled D E F and P Q R. Corresponding sides and vertices contain one, two, and three tick marks, respectively. Angles E and Q are right angles. Two triangles labeled T U V and W X Y. Side T U is labeled three, side U V is labeled six and five-tenths, and side V T is labeled seven. Side W X is labeled three, side X Y is labeled six and five-tenths, and side Y W is labeled seven. Corresponding vertices contain one, two, and three tick marks, respectively. Two triangles labeled A B C and F G H. Angles A and F are labeled eighty-three degrees. Angle B is labeled forty-eight degrees, angle C is labeled forty-nine degrees, angle G is labeled forty-five degrees, and angle H is labeled fifty-two degrees. Sides B C and G H each contain one tick mark. two right triangles. one with legs 4 and 7 units. the other one with legs 5 and 8 units.

Two Triangles are Congruent by following Geometrical Axioms

1. SAS

2.SSS

3. AAS

4. ASA

1. In Δ DEF and Δ P QR

PQ=DE

∠DEF=∠PQR→→Each being 90°

EF=QR

Δ DEF ≅ Δ P QR→→[SAS Congruency]

2. As in Image 2, only one angle is common

we can't say that triangles are congruent.

3. In ΔT UV and Δ W X Y

WX=TU

UV=XY

TV=WY

∠TUV=∠WXY

∠UTV=∠XWY

ΔT UV ≅ΔW X Y→→[By SAS or AAS or SSS]

4.In ΔABC and ΔFGH

∠A=∠F=83°

we can't say that triangles are congruent,as neither the other two angles nor the other two sides are equal.

5. None of the sides nor of the angles are equal .So the triangles are not congruent.

→→So, Image 1, Image 3,  are congruent Polygons.

ANSWERED AT 29/03/2020 - 06:27 PM

QUESTION POSTED AT 29/03/2020 - 06:27 PM

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QUESTION POSTED AT 29/03/2020 - 06:24 PM

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ANSWERED AT 29/03/2020 - 06:22 PM

QUESTION POSTED AT 29/03/2020 - 06:22 PM

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ANSWERED AT 29/03/2020 - 06:20 PM

QUESTION POSTED AT 29/03/2020 - 06:20 PM

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ANSWERED AT 29/03/2020 - 04:33 PM

QUESTION POSTED AT 29/03/2020 - 04:33 PM

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ANSWERED AT 29/03/2020 - 04:33 PM

QUESTION POSTED AT 29/03/2020 - 04:33 PM

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√ (x1 - x2)² + (y1 - y2)²

AB = √13

BC = √13

CD = √13

DA = √13

A'B' = √13

B'C' = √13

C'D' = √13

D'A' = √13

They are all the same lengths. This supports an argument claiming that they are congruent because if the sides are congruent, then the two polygons are congruent.

Something else that must be true to say that two polygons are congruent is that the angles have equal measures.

Hope this helps! :)

ANSWERED AT 28/03/2020 - 12:59 PM

QUESTION POSTED AT 28/03/2020 - 12:59 PM

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If A(x', y') & B(x",y") the the distance AB is given by the following formula:

AB =√[(x"-x')² + (y"-y')²]

Plug into the above with A(4,5) and B(-4,11).

AB =√[(-4-4)²+(11-5)²] =√(-8)²+(6)² = √(64) + (36) =√100 = 10

ANSWERED AT 28/03/2020 - 12:55 PM

QUESTION POSTED AT 28/03/2020 - 12:55 PM

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Is there some type of image for this?

ANSWERED AT 28/03/2020 - 12:55 PM

QUESTION POSTED AT 28/03/2020 - 12:55 PM

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ANSWERED AT 28/03/2020 - 12:54 PM

QUESTION POSTED AT 28/03/2020 - 12:54 PM

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Dividing is the action of slimming a number down to a smaller size. When you divide a whole number by a decimal less than 1 the quotient is greater than the whole number because the that is how many times the quotient is a part of the whole number. For instance, you divide 100 by 4, you will get a quotient of 25. There are 4 parts of 25 to be equal to 100.

I hope this helps you!

ANSWERED AT 28/03/2020 - 12:51 PM

QUESTION POSTED AT 28/03/2020 - 12:51 PM

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In a right triangle, the hypotenuse is always the longest side.  Plus, the hypotenuse squared has to equal the sum of the squares of the other 2 sides.  For the first "triangle" above: does ?  Let's check.  196 = 25 + 16 so does 196 = 41?  Obviously not.  So that is not a right triangle.  Let's check the second one the same way.  Does ?  25 = 9 + 16.  Does 25 = 25?  Of course it does!  So 1 is not a right triangle, but 2 is!

ANSWERED AT 28/03/2020 - 12:48 PM

QUESTION POSTED AT 28/03/2020 - 12:48 PM

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volume = length x width x height
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ANSWERED AT 28/03/2020 - 12:44 PM

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ANSWERED AT 28/03/2020 - 12:44 PM

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ANSWERED AT 28/03/2020 - 12:44 PM

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