3 years ago

Which statement is NOT always true?

1 answer:

3 0

B. The product of two irrational numbers if rational

Example: The square root of 2 times the square root of 3, is the square root of 6, which is still irrational.

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III Convert the following: - a) 5 Km 20 m into m b) 7 m 13 cm into m

nika2105 [10]

All you need to know is that a km is 1000 m ( as the prefix kilo always means 1000 let it be even 1kg and that is equal to 1000g )

also know

that a 100 cm is 1 m and that's cause the prefix centi is 10^–2 (0.01)

answering your question

a) 5km = 5000m

5km and 20m in m is 5000m + 20m = 5020m

b) 13 cm = 13/100m = 0.13m

7m and 12cm is 7m + 0.13m = 7.13m.

remember

1km = 1000m

100cm = 1m

hope this helped :)

7 0

2 years ago

We can find the length of DE using the Pythagorean Theorem:

prohojiy [21]

What's the difference between A) and C)??
There should be an E) because the correct answer would be in either of these forms:
${DE}^{2} = {(4 - 1)}^{2} + {(1 - 3)}^{2} \: \: or \\ DE = \sqrt{( {3}^{2} + {2}^{2} )} \: \: or \\ {DE}^{2} = {(4 - 1)}^{2} + {(3 - 1)}^{2}$

6 0

3 years ago

Read 2 more answers

A turtle is on a rock that is 1.1 feet above sea level. The turtle dives under water. The turtle's total change in altitude duri

ss7ja [257]

Answer:

1.1-5.4=4.3

Step-by-step explanation:

because the total is 5.4 and the turtle was 1.1 up so subtract to see how much the turtle sank to the Bottom

6 0

2 years ago

kayla has a T shirt store. she sold three times as many white T shirts as blue T shirts, she sold a total of 48 T shirts. how ma

bezimeni [28]

WT is white T shirts

BT is blue T shirts, and WT=3BT

WT+BT=48

3BT+BT=48

4BT=48

BT=12 so WT =3×12=36

5 0

3 years ago

Please help me with #14 and #15

RSB [31]

What is 14 and 15 tell me

6 0

3 years ago