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grandymaker [24]
3 years ago
10

Solve the system of equations. 4x + y = -3 5x + 3y = 12

Mathematics
1 answer:
Vika [28.1K]3 years ago
5 0
Look it up.................:
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PLEASE!!!
garik1379 [7]
We see on the picture that :
When we go down one row, we add one horizontal and two diagonal cards.

In the first row we have 2 cards
In the second 2+3=5 cards
In the third 5+3=8 cards
etc.

General formula : in the n-th row from the top, we have\boxed{ 2+(n-1)\cdot3\text{ cards}}
5 0
3 years ago
The legs of a right triangle measure 6 inches and 9 units. If theta is the angle between the 6-inch leg and the hypotenuse, sin
Alex73 [517]
I got 0.55 when I did this problem. If I am wrong I am so sorry and please correct me.
4 0
3 years ago
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A, B, C and D are four towns.
djverab [1.8K]

Three of the four towns are on the vertices of the triangle ΔCBD, through

which the bearing can calculated.

<h3>Response:</h3>
  • The bearing of D from B is approximately <u>209.05°</u>

<h3>Method by which the bearing is found;</h3>

From the given information, we have;

AC = AB = 25 km

∠BAC = 90° (definition of angle between north and east)

ΔABC = An isosceles right triangle (definition)

∠ACD = ∠ABC = 45° (base angles of an isosceles right triangle)

tan(\angle ABD) = \dfrac{45}{25}

  • \angle ABD = arctan \left(\dfrac{45}{25} \right)  \approx 60.945^{\circ}

The bearing of <em>D</em> from <em>B</em> is the angle measured from the north of <em>B</em> to the

direction of <em>D.</em>

<em />

Therefore;

  • The bearing of D from B ≈ 90° + (180° - 60.945°) = <u>209.05°</u>

Learn more about bearings in mathematics here:

brainly.com/question/10710413

5 0
2 years ago
Annie earns $7.50 per hour working after school. She needs at least $185 for a stereo system. Write an inequality that describes
Lyrx [107]

Answer:

7.50x=185

Step-by-step explanation:

5 0
2 years ago
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when buying a new dress, you have the choice of 3 different lengths, 5 different colors, and 2 different styles. How many choice
Thepotemich [5.8K]
Three choice because the choice are all different
5 0
3 years ago
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