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3 years ago

8

Jodi drew the Eiffel Tower 6.5 inches tall. she thought it was too tall so she multiplied its height by 0.8. the second drawing

was too short so she multiplied its height by 1.2. was her last drawing shorter, the same as, or taller than first drawing.

1 answer:

Studentka2010 [4]3 years ago

7 0

The first drawing was 6.5 inches

The second drawing was: 6.5 x 0.8 = 5.2 inches

Her last drawing was: 5.2 x 1.2 = 6.24 inches.

Her last drawing was shorter than the first drawing.

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9) A heptagon has 6 exterior angles with measures of 47, 55, 62, 64, 54, and 49. What is the measure of the interior angle adjac

svetlana [45]

Answer:

seventh interior angle=∠x=29°

Step-by-step explanation:

sum of interior angle of polygon is equal to 360°

let seventh angle of heptagon is x

∠x+47°+55°+62°+64°+54°+49°=360°

∠x=360°-(47°+55°+62°+64°+54°+49°)

∠x=360°-331°=29°

∠x=29°

seventh interior angle=∠x=29° answer

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3 years ago

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olga_2 [115]

Let

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y------> the width of the rectangle

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The area of a rectangle is equal to

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$A=64\ units^{2}$

so

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let's assume different values of x to get the different values of y

<u>case 1)</u> For x=64 units

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$y=64/x$

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see the draw in the attached figure N 1

<u>case 2)</u> For x=32 units

substitute in the equation 1

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see the draw in the attached figure N 2

<u>case 3)</u> For x=16 units

substitute in the equation 1

$x*y=64$

$y=64/x$

$y=64/16$

$y=4\ units$

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see the draw in the attached figure N 3

<u>case 4)</u> For x=30 units

substitute in the equation 1

$x*y=64$

$y=64/x$

$y=64/30$

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the dimensions of the rectangle are 30 units x 2 (2/15) units

see the draw in the attached figure N 4

<u>case 5)</u> For x=40 units

substitute in the equation 1

$x*y=64$

$y=64/x$

$y=64/40$

$y=1.60\ units$

the dimensions of the rectangle are 40 units x 1.60 units

see the draw in the attached figure N 5

<u>case 6)</u> For x=60 units

substitute in the equation 1

$x*y=64$

$y=64/x$

$y=64/60$

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the dimensions of the rectangle are 60 units x 1 (1/15) units

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Sergeu [11.5K]

m=-(5/4)

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The y value of the second coordinates becomes negative which is unlike the y value in the first coordinates, which means our slope is downward, meaning it has a negative sign in front.

In every slope, there’s a numerator, being the rise, and a denominator, being the run.

To find the rise, we must look at the y values. Starting at 3 going to -2 has a space of 5 units, making that our numerator.

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ivanzaharov [21]

Answer:

x = -15 and x = 1

Step-by-step explanation:

Since we have to use the complete the square method, we first need to <u>rewrite the equation</u> in the form $x^{2}+2ax+a^{2}=(x+a)^{2}$ .

This results in $x^{2} + 14x + 7^{2} = 15 + 7^{2}$ .

Next, we <u>simplify the equation</u> to get $x^{2} +14x+7^{2} = 64$ .

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3 years ago

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