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3 years ago

Paper and Pencil Construction: Construct a Line Perpendicular to a Given Line through a Point on the Line

Mathematics

1 answer:

Zarrin [17]3 years ago

5 0

Step-by-step explanation:

wait a person was about to report it sorry ;/

had to take it off

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Ayyyyyyyy help me even if u can only help with 1 answer it wud be appreciated

Lisa [10]

Answer:

7. 225, 315

Step-by-step explanation:

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3 years ago

1/4 cupcakes for 28 kids

MaRussiya [10]

14 ÷ 28 =7 its must 28÷4

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4 years ago

How many 3 digit palindromes are divisible by 9?

ludmilkaskok [199]

Interesting problem.

A palindrome is a number which is identical when read/interpreted left-to-right or right-to-left. For example, 14241 is a palindrome, so is 444444.

A three digit palindrome must be made up of two distinct digits only, one for the first and last digits, and one for the middle, for example, 424, or 515, etc.

For a number to be divisible by 9, the sum of the digits must add up to a multiple of 9, such as 0, 9, 18, 27, etc.

We can now form a table of the possible 3-digit palindromes divisible by 9, starting with the first/last digits (=A), and finding the middle digit (=B). The number is therefore represented by the pattern ABA.

For example, when A=1, we have the number 1B1. For the number to be divisible by 9, B=7 so that sum=1+7+1=9, which is divisible by 9.

For each value of A (from 1 to 9) we can only find one value of B that makes the number divisible by 9. Thus we can only find nine such numbers, with A equal to 1 to 9.

Here's a list of the numbers

A B number

1 7 171

2 5 252

3 3 333

4 1 414

5 8 585

6 6 666

7 4 747

8 2 828

9 0 909

3 0

3 years ago

How do you graph y=-3x+4

Art [367]

It's a linear function. The graph is a straight line, therefore we need only two points.

Select any value of x and calculate the value of y:

y = -3x + 4

for x = 0 → y = -3(0) + 4 = 4 → (0, 4)

for x = 2 → y = -3(2) + 4 = -2 → (2, -2)

4 0

3 years ago

A cube has side length of 2m. What is the surface area of the cube?

SVEN [57.7K]

Answer:

24 square meters.

Step-by-step explanation:

The surface area of the cube consists of 6 congruent squares with side length of 2 m.

The are of one such square is

$2\cdot 2=4\ m^2.$

Hence, the surface area of the cube is

$6\cdot 4=24\ m^2.$

8 0

3 years ago

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