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statuscvo [17]
2 years ago
12

4,985.132 The 9 in the hundred place is worth ?​

Mathematics
1 answer:
sashaice [31]2 years ago
7 0

Answer:

100,000

Step-by-step explanation:

The 9 is in the hundredth thousand place

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Two sides of a triangle have measures 3 ft and 6 ft. Also, these sides form a vertex whose angle measures 60 degrees. Calculate
Basile [38]

Answer:

A. The length of the third side is approximately 5 feet.

B. A = 88^{o}, B = 60^{o} and C = 32^{o}.

Step-by-step explanation:

Let the triangle be ABC. Given two sides and an included angle, let us apply the cosine rule to determine the third length.

A. Let side a = 6 feet and c = 3 feet, thus;

b^{2} = a^{2} + c^{2} - 2ac Cos B

  = 6^{2} + 3^{2} - 2(6 x 3) Cos 60^{o}

  = 36 + 9 - 36 x 0.5

  = 45 - 18

b^{2} = 27

b = \sqrt{27}

  = 5.1962

b  = 5.2 feet

b ≅ 5 feet

The length of the third side is approximately 5 feet.

B. Given that B = 60^{o}, then let us apply the Sine rule to determined the measure of A.

\frac{a}{SinA} = \frac{b}{SinB}

So that,

\frac{6}{Sin A} = \frac{5.2}{Sin60^{o} }

Sin A = \frac{0.886*6}{5.2}

Sin A = 0.99923

A = Sin^{-1} 0.99923

  = 87.75

A ≅ 88^{o}

Since the sum of angle in a triangle = 180^{o}.

Then,

A + B + C = 180^{o}

88^{o} + 60^{o} + C = 180^{o}

148^{o} + C = 180^{o}

C = 180^{o} - 148^{o}

     = 32^{o}

C = 32^{o}

Thus,

A = 88^{o}, B = 60^{o} and C = 32^{o}.

5 0
3 years ago
Simplify the expression. w - .25w
balandron [24]
Combine like terms.

1w - 0.25w = 0.75w

Hope this helps!
3 0
3 years ago
How many units? What is e value of a?
kkurt [141]

Answer:

a = 14

Step-by-step explanation:

3a = a + 28 ➡ 2a = 28 ➡ a = 14

6 0
3 years ago
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Is a problem solving method that uses that fact that any number or expression can be multiplied by one without changing it's value.
3 0
3 years ago
Given: ABCD trapezoid<br> BC=1.2m, AD=1.8m<br> AB=1.5m, CD=1.2m<br> AB∩CD=K<br> Find: BK and CK
stepladder [879]

Answer:

The value of BK is 3m and the value of CK is 2.4m.

Step-by-step explanation:

Given information: ABCD trapezoid

, BC=1.2m, AD=1.8m

, AB=1.5m, CD=1.2m

, AB∩CD=K.

Using the given information draw a figure.

Two sides of a trapezoid are parallel.

Since AB∩CD=K, therefore AB and CD are not parallel, because parallel line never intersect.

AD\parallelBC

\angle KBC=\angle KAD              (Corresponding angles)

\angle KCB=\angle KDA             (Corresponding angles)

By AA rule of similarity

\triangle KBC\sim \triangle KAD

Corresponding sides of similar triangles are proportional.

\frac{KB}{KA}=\frac{KC}{KD}=\frac{BC}{AD}

\frac{x}{x+1.5}=\frac{y}{y+1.2}=\frac{1.2}{1.8}

\frac{x}{x+1.5}=\frac{1.2}{1.8}

\frac{x}{x+1.5}=\frac{2}{3}

3x=2x+3

x=3

The length of BK is 3 m.

\frac{y}{y+1.2}=\frac{1.2}{1.8}

\frac{y}{y+1.2}=\frac{2}{3}

3y=2y+2.4

y=2.4

The length of CK is 2.4 m.

5 0
3 years ago
Read 2 more answers
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