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saw5 [17]
3 years ago
5

Describe how to model 2 digit by 2 digit multiplication using an area model

Mathematics
1 answer:
gtnhenbr [62]3 years ago
7 0
 Multiply<span> a whole number of up to four </span>digits<span> by a one-</span>digit<span> whole number, and </span>multiply two two-digit<span> numbers, </span>using strategies based on place value and the properties of operations. Illustrate and explain<span> the calculation by </span>using<span> equations, rectangular arrays, and/or </span>area models<span>. hope that helped</span>
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Helllpppp me pleasssssseeee<br> 25points easy
gregori [183]

Answer:

x=3

Step-by-step explanation:

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2 years ago
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How to solve this? 10x+4y &lt; 12 8x-3y &gt; 20
AnnZ [28]

Answer: mmm

Step-by-step explanation:

mmm

3 0
2 years ago
2z + 4y +8y - 32<br> How to solve
Sindrei [870]

Answer:

2z + 12y - 32

Step-by-step explanation:

1) 2z cannot be combined with any other number because no other number has the variable z.

2) 4y and 8y are both positive and van be combined. Therefore, it is 12y.

3) -32 cannot be combined with any other number because it doesn't have a variable that is the same as the others.

Therefore, the answer is 2z + 12y - 32

3 0
3 years ago
Find all solutions for a triangle with C=17deg, a=10, c=11. Round to the nearest tenth
ExtremeBDS [4]

Answer: Angle A = 15.42°, angle B = 147.58°, and side b = 20.17 units.

Step-by-step explanation: Please refer to the attached diagram for details.

A triangle with angles ABC has been sketched from the information given, and we have the missing dimensions as, angles A and B and side b. Since we have an angle with a corresponding side, and another side has been given, we shall apply the Sine Rule which states that;

a/SinA = b/SinB = c/SinC

We can start with the known values as follows

a/SinA = c/SinC

10/SinA = 11/Sin 17

By cross multiplication we now have

(10 x Sin 17)/11 = SinA

(10 x 0.2924)/11 = SinA

2.924/11 = SinA

0.2658 = SinA

By use of calculator or a table of values,

A = 15.42°

Having calculated angle A as 15.42 and having known angle C as 17, angle B can be derived as,

A + B + C = 180° {Sum of angles in a triangle equals 180}

15.42 + B + 17 = 180

32.42 + B = 180

Subtract 32.42 from both sides of the equation

B = 147.58°

And now to calculate the missing side c, we still apply the Sine Rule

b/SinB = c/SinC

b = (c x SinB)/SinC

b = (11 x 0.5361)/0.2924

b = 5.8971/0.2924

b = 20.168

Approximately, b = 20.17

Therefore, the missing angles and side is calculated as

Angle A = 15.42°, angle B = 147.58° and length of side b = 20.17 units

5 0
3 years ago
A spotlight on a 3.0 m stand shines on the surface of a swimming pool. The beam of light hits the water at a point 7.0 m away fr
Ede4ka [16]

The angle the beam makes with the pool surface is 29.72°.

Step-by-step explanation:

<u>Data:</u>

The spotlight and surface of a swimming pool makes a 90 degree angle.

Spotlight stand is 3m (Opposite)

Beam of light hits the water 7m away from the base of light (base)

Angle = ?

<u>Use sin to solve</u>

Formula:

Tan (Angle) = \frac{Opposite}{Base}

Solution:

Sin (Angle) = \frac{3}{7}

Angle = tan^{-1} (0.571)

Angle = 29.72°

Therefore, the angle the beam makes with the pool surface is 29.72°.

Keyword: Angle

Learn more about angle at

  • brainly.com/question/4354581
  • brainly.com/question/4767370

#LearnwithBrainly

8 0
2 years ago
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