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2 years ago

six angles of a heptagon measure 107, 139, 131, 110, 145. and 128. what is the measure of the seventh angle

1 answer:

3 0

the measure is 140, I basically summed all of the angles of a polygon of “n”, which is 7, then I did 7-2 times 180 (900) so I can finally add up all of your measurements

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kobusy [5.1K]

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3 years ago

1/x<4x<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7Bx%7D%20%20%3C%204x" id="TexFormula1" title=" \frac{1}{x} &lt

liraira [26]

Answer:

$x>\frac{1}{2} \\x$

Step-by-step explanation:

If we solve for 'x' variable, its recommended to multiply 'x' variable in both sides of inequality:

we have $\frac{1}{4}< x^{2} \\$

This is a quadratic equation, two answer are going to be obtained from here.

since $\sqrt{x^{2} } = |x|$

Applying square roots to both sides of inequality sign we wil have the following

$\sqrt{\frac{1}{4} } < \sqrt{x^{2} }$

This leaves to the following

$\frac{1}{4}$

remember that $|x|= +/ - x$

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6 0

3 years ago

In the first two hours of the trip, Julissa drove 120 miles. In the next hour, she traveled only 48 miles. What was Julissa’s av

viktelen [127]

Answer:

Jane drives at an average speed of 45 mph on a journey of 135 miles. How long ... by speed. 135 miles ÷ 45 mph = 3 hours ... of 8 mph. If he cycles for 6½ hours, how far does he travel? ... in 4 hours. (a) What is her average speed for the first part of the journey? ... (a) What is average speed of the car in miles per hour? mph.

Step-by-step explanation:

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2 years ago

What’s the difference between nine and twice a number,x, is one

coldgirl [10]

9/2x=1 is probably right

6 0

3 years ago

Dmitri wants to cover the top and sides of the box shown with glass tiles that are 5mm square. How many tiles does he need? ( Th

ycow [4]

Answer:

372

Step-by-step explanation:

We are given that the dimensions of the box are,

Length = 15 cm, Width = 20 cm and Height = 9 cm.

We know that the box represents a cuboid.

Since, surface area of a cuboid = L×W + 2×L×H + 2×W×H

Thus, the surface area of the box = 15×20 + 2×15×9 + 2×20×9

i.e. Surface area = 300 + 270 + 360

i.e. Surface area = 930.

Thus, the surface area of the box is 930 cm² i.e. 9300 mm².

Further, the sides of the tiles are 5 mm and the tile represents a square.

So, the surface area of the tile = 5 × 5 = 25 mm².

This gives us that,

Number of tiles required to cover the box = $\frac{9300}{25}$ = 372.

Hence, Dmitri requires 372 tiles to cover the box.

5 0

3 years ago

Read 2 more answers

six angles of a heptagon measure 107, 139, 131, 110, 145. and 128. what is the measure of the seventh angle​

six angles of a heptagon measure 107, 139, 131, 110, 145. and 128. what is the measure of the seventh angle