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Kay [80]
3 years ago
8

What does "place value" mean? Give specific examples of systems that use place value and those that do not.

Mathematics
1 answer:
zaharov [31]3 years ago
6 0

Answer:

Place value can be defined as the value represented by a digit in a number on the basis of its position in the number.

Step-by-step explanation:

In the number 456, the "5" has a face value of 5. Value = The place value of the digit times its face value. Example: Find the value of the digits 6, 8 and 4 in the number 684.

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M–[(m–n)÷(−2)](−5), if m=−4, n=−6
Marrrta [24]

- 4 - (( - 4  + 6) \div ( - 2))( - 5) = \\   = - 4 - (2 \div ( - 2))( - 5) =  \\  =  - 4 - ( - 1)( - 5) =  - 4 - 5 =  \\  =  - 9

5 0
3 years ago
Read 2 more answers
josie cast a shadow of 6ft and she is 5 ft 6 in tall. A building cast a shadow of 18 ft at the same time that josie measured her
Debora [2.8K]
Josie's height = 5 ft 6 in. = 5 1/2 ft = 11/2 ft.
Josie's shadow = 6 ft.

Ratio of shadow to height = 6 / 11/2 = 12/11
So, It would be equal to ratio of building's shadow to building's height.

18/x = 12/11
x = 18*11 /12
x = 3*11 / 2
x = 16.5

In short, Your Answer would be 16.5 Feet

Hope this helps!

6 0
3 years ago
What are the answers to A and C?
damaskus [11]
8x+1=-x-1 4-5x=1+6x
8x+x=-1-1 -5x-6x=1-4
9×=-2 -11×=-3
×=-2/9 ×=3/11
5 0
3 years ago
Please help help help thank you
Alex787 [66]

The side RS is 7 cm. For a similar triangle, the ratio of the opposite side of the two similar triangle are the same.

<h3>What is SAS similarity theorem?</h3>

ΔABC ~  ΔDEF only if the ratio of two sides of ΔABC and corresponding two sides of ΔDEF is equal, and the angle included in both sides are congruent.

Suppose the two sides of ΔABC are AB and BC, and that of DEF be DE and EF, then for SAS similarity, we need

For the similar triangle;

\rm \frac{HG}{TS} = \frac{FG}{RS} \\\\ \frac{12}{4} =\frac{21}{RS} \\\\ RS= 7 cm

Hence, the side RS is 7 cm.]

To learn more about the SAS similarity theorem, refer to link;

brainly.com/question/22472034

#SPJ1

5 0
2 years ago
The side of a equilatoral triangle is 9.9 cm. find its perimetre
tia_tia [17]

The perimeter is the distance all the way around.

That's the sum of all the sides.

A triangle has 3 sides.

In an equilateral triangle, they're all the same length.

If one of them is 9.9 cm, then all of them add up to (3) · (9.9 cm) .

3 0
3 years ago
Read 2 more answers
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