3 years ago

Solve the following system of equations by the substitution method.

Mathematics

2 answers:

USPshnik [31]3 years ago

8 0

x-y=0

x-y=2

that is not solution

Murljashka [212]3 years ago

5 0

5 - 5 = 0
7 - 5 - 2 = 0
I think

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drek231 [11]

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6 0

3 years ago

Please do 3 & 4 and show work

Shalnov [3]

Answer:

3. A=B=70°; C=D=110°

4. A=90°; C=48°

Step-by-step explanation:

Same-side angles of a trapezoid add to 180°.

___

3. (2x) +(x+15) = 180

3x + 15 = 180 . . . . simplify

x +5 = 60 . . . . . . . divide by 3

x = 55

A=B=(x+15)° = (55+15)° = 70°

C=D=2x° = 2·55° = 110°

4. You are given the values of one of the angles on each side, so the other can be found by subtraction:

A=180°-D = 90°

C = 180° -132° = 48°

8 0

3 years ago

A cellular phone company monitors monthly phone usage. The following data represent the monthly phone use in minutes of one part

vovikov84 [41]

The answer is 325 517 424 395 494

4 0

3 years ago

Read 2 more answers

A copper key is placed in a cylindrical container with a 3-cm diameter. The water level rises from 14 cm to 14.6 cm. What is the

Tomtit [17]

Answer:

The volume is about 4.24 cm^3.

Step-by-step explanation:

From the question we are told that:

Diameter $d= 3-cm$

Radius $r=d/2=>1.5cm$

Height risen $14.6-14=0.6cm$

Generally the equation for Volume of a Key is mathematically given by

Since Volume of a cylinder is Given as

$V=\pir^2h$

Therefore

$V=\pi*1.5^2*0.6$

$V=4.2417\\\\V=4.24 cm^3$

Correct Option A

The volume is about 4.24 cm^3.

3 0

3 years ago

Log(base10)(6/5)^6 expand

aev [14]

Log10 (6/5)^6
= 6 log10 (6/5)
= 6 (log10 6 - log10 5) Answer

7 0

3 years ago