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grandymaker [24]
3 years ago
14

Please help me with this question asap

Mathematics
1 answer:
Veronika [31]3 years ago
3 0

Answer:

it could be y = 10 or y = 9 then X

Step-by-step explanation:

if im wrong then im sorry

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If ABC is congruent to EDF where the coordinates of A(-1,1),B(2,4),and C(3,1) what is The measure of EF
Wittaler [7]

Answer:

EF is 4 units.

Step-by-step explanation:

It is given that the two triangles \trianlge ABC, \triangle EDF are congruent to each other i.e.

\trianlge ABC \cong \triangle EDF

Coordinates are given as:

A(-1,1)

B(2,4)

C(3,1)

As per the property of congruence, all the corresponding sides and angles of the two triangles are equal to each other.

i.e. AB = ED

BC = DF

AC = EF

We are given with the coordinates of points A, B and C here from which we can easily calculate the side AC using the distance formula.

Distance = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Where (x_1,y_1), (x_2,y_2) are the coordinates of the two points whose distance is to be calculated.

So,

AC = \sqrt{(3-(-1))^2+(1-1)^2}\\\Rightarrow AC = \sqrt{4^2}\\\Rightarrow AC = 4\ units

Hence, <em>AC = EF = 4 units</em>

8 0
4 years ago
A local weather enthusiast wants to see if the last five summers have been warmer than normal for Eloy, Arizona. From the Nation
emmainna [20.7K]

Answer with Explanation:

Average in Temperature in last 30 years in the month of July for Eloy and Arizona=90°

Standard Deviation =2.1°

→It means ,temperature of last 30 years of states Eloy and Arizona lie between , 90°-2.1° to 90°+2.1°= 87.9° to 90°.

→→Average of last five Summers, for Eloy and Arizona=92°

a=2.5%

Calculating , the reduction ,which is equal to 2.5% from 92

 =92-92\times \frac{2.5}{100}\\\\=92 -2.30\\\\=89.70

→89.70° lies between ,87.9° to 90°.

So,we can confidently assert  that→the two averages are probably same.

Option D: The average for the last five years fits with the 30-year average.

 

5 0
3 years ago
Read 2 more answers
A restaurant had three pies each cut into eights. By noon 3/4 of all the pieces were sold. How many pieces were sold by noon
Andreyy89
So 3 pies with 8 pcs each.
8 x 3 = 24
3/4 of 24 is 18
the awnser is 18
4 0
4 years ago
2,937,082in expanded
snow_tiger [21]
Idk lol... srry couldn't help
7 0
3 years ago
A school team won 6 games this year against 4 games won last year . What is the percent increase .
Y_Kistochka [10]

Answer:

The increase in the number of wins (or amount of change) =6−4=2

Percentage increase

=

original amount or base

amount of change

×100

=

4

2

×100

=50%

8 0
3 years ago
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