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2 years ago

How do i know if a shape is concave or convex

Mathematics

1 answer:

horsena [70]2 years ago

3 0

Answer:

You can use the word cave to help you remember the difference between convex and concave polygons. A convex polygon has all its vertices, or corners, pointing out from the center, but a concave polygon looks like it has been caved in

Step-by-step explanation:

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r-ruslan [8.4K]

16 pages/8 hrs

2 pages/ he

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2 years ago

I Need Help!! Identify each congruence transformation that maps ABC to DEF

timama [110]

Answer:

A and F

Step-by-step explanation:

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2 years ago

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olganol [36]

The last answer choice

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3 years ago

A coin collector has $45 in just dimes and quarters in a piggy bank he counted all the coins and there are 240 total how many ea

Whitepunk [10]

Answer:

The number of dimes are 100 and number of quarters are 140.

Step-by-step explanation:

Let the number of dimes be 'd' and quarters be 'q'.

Given:

The sum of amount is $45.

The total number of coins are 240.

1 dime = $0.10

∴ 'd' dimes = $\$0.10d$

1 quarter = $0.25

∴ 'q' quarters = $\$0.25q$

Now, as per question:

$d+m=240-----1\\0.1d+0.25q=45---2$

Multiplying equation (1) by -0.1 and adding the result to equation (2), we get:

$-0.1d-0.1q=240\times -0.1\\-0.1d-0.1q=-24\\0.1d+0.25q=45\\-----------\\0.15q=21\\q=\frac{21}{0.15}=140\\\\d=240-q=240-140=100$

Therefore, the number of dimes are 100 and number of quarters are 140.

7 0

2 years ago

PLEASE HELP WILL GIVE BRAINLIEST Answer all parts of the question please!

Zanzabum

Answer:

It's in the air for about 2 seconds (A), maximum height was about 17 feet, and yes you win the price since 17> 15.

Step-by-step explanation:

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2 years ago