3 years ago

Ike likes numbers only if the sum of their digits is 9. How many digits between 10-100 does he like? *

2 answers:

6 0

There are many divisibility tests. ... 9: A number is divisible by 9 if the sum of its digits is divisible by 9. .... Each number has only two factors: 1 and itself. 6 ...

Rashid [163]3 years ago

4 0

Ok so its 8 `1&8 2&7 3&6 4&5 and then all of those numbers reversed
18 27 36 45 and 81 72 63 54

You might be interested in

The perimeter of a rectangular sandbox is 28ft. The length is six times the width.

VLD [36.1K]

Let the width =x
length = 6x
p=14x
28=14x
x=2

7 0

3 years ago

Find the complement and the supplement of the given angle.<br> 23°

e-lub [12.9K]

Answer:

Complement: 67°

Supplement: 157°

Step-by-step explanation:

Complementary angles = 90°

90-23=67°

Supplementary angles = 180°

180-23=157°

7 0

3 years ago

12. The width of a rectangle is 16.55 inches. The length of the rectangle is half its width.

zepelin [54]

The answer is D

16.55 divide by 2= 8.275
8.275+8.275+16.55+16.55=49.65

4 0

3 years ago

Which transformation could NOT be used to prove that two circles are congruent to one another?

EleoNora [17]

Answer: D

Step-by-step explanation:

6 0

2 years ago

If a² + b² = z and ab = y, which of the following is equivalent to 4z + 8y? Show all the steps.

Ivenika [448]

Answer:

The answer to your question is: (2a + 2b)²

Step-by-step explanation:

a² + b² = z

ab = y

Which is equivalent to 4z + 8y ?

Substitution

4(a² + b²) + 8(ab)

Simplify 4a² + 4b² + 8ab

Order 4a² + 8ab + 4b² It's a perfect square trynomial

Factorize (2a + 2b)²

7 0

3 years ago

Read 2 more answers