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3 years ago

PLZZ HURRY WILL GIVE 50 POINTS AND BRAINEST

Mathematics

1 answer:

LekaFEV [45]3 years ago

7 0

Answer:

(1,-4)

Step-by-step explanation:

-5+1=-4

3+-2=1

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Help with this question Asap!! I need all the help I can get!

tankabanditka [31]

Answer:

$\large{YES}\ \dfrac{BC}{YZ}=\dfrac{AC}{XY}=\dfrac{AB}{XZ}=\dfrac{2}{1}\\\\\text{and}\ \angle B\cong\angle Z,\ \angle C\cong\angle Y,\ \angle A\cong\angle X$

Step-by-step explanation:

$BC\to ZY\\AB\to XZ\\AC\to XY\\\angle A\to\angle X\\\angle B\to\angle Z\\\angle C\to\angle Y$

$\text{We have:}\\\\\triangle ABC:\ AB=20,\ BC=12,\ AC=18\\\triangle XZY:\ XZ=10,\ YZ=6,\ XY=9\\\\\text{check the ratio:}\\\\\dfrac{AB}{XZ}=\dfrac{20}{10}=2\\\\\dfrac{BC}{YZ}=\dfrac{12}{6}=2\\\\\dfrac{AC}{XY}=\dfrac{18}{9}=2\\\\\text{CORRECT :)}\\\\\angle B\cong\angle Z,\ \angle C\cong\angle Y\\\\\text{We know that: The sum of the acute angles in a right triangle is}\ 90^o.\\\\m\angle B+m\angle A=90^o\ \text{and}\ m\angle Z+m\angle X=90^o$

$\text{We know}\ m\angle B=m\angle Z\to \ m\angle A=m\angle X.\\\text{therefore}\ \angle A\cong\angle X$

5 0

4 years ago

Katherine Johnson is best known for her work on ________.

Mila [183]

Answer:

Pretty sure she was best known for calculating flight paths of spacecraft.

7 0

3 years ago

A leak in a water tank causes the water level to decrease by 3.6×10−23.6×10−2 millimeters each second. About how many millimeter

Zolol [24]

Answer: $6.48 \times 10^2$

Step-by-step explanation:

Since, According to the question,

The leak in a water tank causes the water level to decrease by $3.6\times 10^{-2}$ millimeter

That is , in 1 second it decreases $3.6\times 10^{-2}$ mm

⇒ In $1.8\times 10^4$ seconds it will decrease $3.6\times 10^{-2}\times 1.8\times 10^4$ mm

⇒ In $1.8\times 10^4$ seconds it will decrease $6.48\times 10^{2}$ mm

7 0

3 years ago

2010,2002,2005,2007,2001

xxMikexx [17]

Answer:

2011,2012,2013,2014,2015

Step-by-step explanation:

6 0

3 years ago

What is the solution to this system of equations?<br><br> -5.9x-3.7y=-2.1<br> 5.9x+3.7y=2.1

marin [14]

Answer:

There are infinite solutions that solve the system $y=0.57-1.59x$

Step-by-step explanation:

The solution can be expressed as $y=0.57-1.59x$ (there are infinite solutions that solve the system). This results from rearranging terms in the first or second equation.

This is because the first equation is a linear combination of the second one (this is, the first equation equals (-1) times the second equation). This means that the second equation does not add any information about x and y: it says exactly the same as the first equation about the relationship between x and y.

Then, in terms of solving the system, you have one unique expression (not repeated) that shows the relationship between y and x. This means that, any pair of (x,y) that meet the requirements expressed by $y=0.57-1.59x$ , will solve the system. Then we have infinite solutions.

8 0

4 years ago

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