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Alinara [238K]
3 years ago
5

Please help me with this problem soon

Mathematics
1 answer:
Helga [31]3 years ago
8 0

Answer:

1. a || b ------ Given

2. m<6 = ⅛m<4 ------- Given

3. m<6 + m<4 = 180 ------- Supplementary Angles

4. m<6 + 8<m6 = 180 ---- Substitution

5. m<6 = 20; m<4 = 160 ----- Algebra

Step-by-step explanation:

Required

Fill in the gaps

1. a || b ------ Given

From the question, we understand that m<6 is ⅛ of m<4. This answers (2) as follows:

2. m<6 = ⅛m<4 ------- Given

From the attached figure, m<6 and m<4 are supplementary angles and they add up to 180. So:

3. m<6 + m<4 = 180 ------- Supplementary Angles

In (2): m<6 = ⅛m<4

Multiply both sides by 8

8 * m<6 = 8 * ⅛m<4

8m<6 = m<4

So, substitute 8m<6 for m<4 in (3). This gives (4)

4. m<6 + 8<m6 = 180 ---- Substitution

Solve (4) algebraically,

9m<6 = 180

Multiply both sides by ⅑

⅑ * 9m<6 = ⅑ * 180

m<6 = 20

Recall that m<4 = 8m<6

So:

m<4 = 8 * 20

m<4 = 160

Hence, (5) is

5. m<6 = 20; m<4 = 160 ----- Algebra

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Answer:

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Step-by-step explanation:

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3 0
3 years ago
The scatter plot shows the average heights of children up to age 5.
Over [174]

Answer:

(a) y = 4.5x  + 22 -- The equation

(b) 31 inches

Step-by-step explanation:

Given

See attachment

Solving (a): The equation of the trend line.

We start  by calculating the slope (m)

m = \frac{y_2 - y_1}{x_2 - x_1}

Where

(x_1,y_1) = (0,22)

(x_2,y_2) = (4,40)

So, we have:

m = \frac{40 - 22}{4 - 0}

m = \frac{18}{4}

m = 4.5

The equation is then calculated using:

y = m(x-x_1)+y_1

Where:

(x_1,y_1) = (0,22)

m = 4.5

y = 4.5(x - 0) + 22

Open bracket

y = 4.5x - 0 + 22

y = 4.5x  + 22

(b) The height of a 2 year old.

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y = 4.5 * 2 + 22

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7 0
3 years ago
1. If the area of a circle is 81pi square feet, find its circumference.
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Answer:

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Step-by-step explanation:

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2 years ago
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just olya [345]

Answer:

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Step-by-step explanation:

Perimeter of a rectangule = 2(length+width)

Then:

g = 2w               Eq. 1

2(g+w) = 24       Eq. 2

g = length

w = width

From Eq. 2:

(2*g + 2*w) = 24

2g + 2w = 24      

2w = 24 - 2g            Eq. 3

Matching Eq. 1  and Eq. 3

g = 24 - 2g

g + 2g = 24

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From Eq. 1

g = 2w

8 = 2w

8/2 = w

w = 4 feet

Check:

From Eq. 2

2(g+w) = 24

2(8+4) = 24

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Answer:

Area of a rexctangle = length * width

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