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4 years ago

Solve the system of linear equations by substitution. y = x y = 2x - 1

Mathematics

1 answer:

Vera_Pavlovna [14]4 years ago

8 0

X=1

Y=1

Step-by-step explanation:

.....................

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There was $153.75 in the drawer at the beginning of the day.During the day $27.30 and $15.62 was taken from the drawer m.how muc

Ksenya-84 [330]

Answer:

$110.83

Step-by-step explanation:

you have to subtract from the total number

7 0

3 years ago

Look at the picture for the question please show work.

lukranit [14]

$A=\dfrac{1}{2}ah\\
a=25 \text{ mm}\\
h=14 \text{ mm}\\\\
A=\dfrac{1}{2}\cdot25\cdot14\\
A=175 \text{ mm}^2 \Rightarrow C$

6 0

4 years ago

What is the answer and plz explain

bagirrra123 [75]

Answer:

36 squared units

Step-by-step explanation:

So you can draw "made up lines" or I guess lines you draw yourself to create 2 rectangles. Check attachment.

The first rectangle is a square and has sides 3 and 3, so you get the area of 9.

The second, has sides 9 and 3, so you get the area of 27

Since you are trying to find the entire thing, you add 27 and 9 to get 36

7 0

3 years ago

In ΔUVW, w = 44 cm, u = 83 cm and ∠V=141°. Find the area of ΔUVW, to the nearest square centimeter.

Tema [17]

Answer:

$Area \approx 1149\ cm^2$

Step-by-step explanation:

Given that:

ΔUVW,

Side w = 44 cm, (It is the side opposite to $\angle W$ )

Side u = 83 cm (It is the side opposite to $\angle U$ )

and ∠V=141°

Please refer to the attached image with labeling of the triangle with the dimensions given.

Area of a triangle with two sides given and angle between the two sides can be formulated as:

$A = \dfrac{1}{2}\times a\times b\times sinC$

Where a and b are the two sides and

$\angle C$ is the angle between the sides a and b

Here we have a = w = 44cm

b = u = 44cm

and ∠C= ∠V=141

Putting the values to find the area:

$A = \dfrac{1}{2}\times 44\times 83\times sin141\\\Rightarrow A = \dfrac{1}{2} \times 3652 \times sin141\\\Rightarrow A =1826 \times 0.629\\\Rightarrow A \approx 1149\ cm^2$

So, the area of given triangle to the nearest square centimetre is:

$Area \approx 1149\ cm^2$

8 0

4 years ago

What is the equation of the line through (1,4) and (2,2)? y= _x + __

aivan3 [116]

Answer:

y = -2x + 6

Step-by-step explanation:

y = mx + c

m = (2-4)/(2-1) = -2/1

m = -2

y = -2x + c

When x = 1, y = 4

4 = -2(1) + c

c = 4 + 2 = 6

y = -2x + 6

6 0

3 years ago