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allsm [11]
3 years ago
7

How can we efficiently multiply by multiples of 10?

Mathematics
1 answer:
Naily [24]3 years ago
4 0

Answer:

just add a zero

Step-by-step explanation:

because if you do all the work it's just a waste of time when you could get the same answer by just adding a zero.

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Please help me out with thissssss<br><br> No links no stealing points
Mrac [35]

Answer:

yes

Step-by-step explanation:

congurency property can be used for all right angles triangles

that's all ....have fun

7 0
3 years ago
Factor the trinomial:<br> 5x^2+41x+42
babunello [35]

Answer:

(5x + 6) (x + 7)

Step By Step Explanation:

Use the sum form to the product.

5

5 0
3 years ago
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What are these four? 3, 3, 4, and 4??
Leokris [45]

For 4. (Apples to balloons) it is really simple. All you have to do is count the amount of balloons and apples and turn into a ratio, which is a basically a fraction. The answer for that would be 4:2


For the other 4, im not sure what the answer is as i cant really see it that well.

3 and 3 are pretty easy too. All you need to do is find a common factor. For the first number 3, 6 and 8 can both be divided by 2. The will turn it in 3/4, which is as simple as the number can get. The next one can also be divided by 2, which will turn it into 5/7. Once again, this is as simple as it can get.

Answers:

3. 3/4

3. 5/7

4. ? (couldn't see it)

4. 4:2


3 0
3 years ago
Darya and Kana are both practicing to swim in a
alexandr402 [8]

Answer:

45.7 s

Step-by-step explanation:

Darya:

Number of laps = 13

Average time per lap = 23.5 seconds

Total time to swim 13 laps = Number of laps × Average time per lap

= 13 × 23.5

= 305.5 seconds

Kana:

Number of laps = 10

Average time per lap = 25.98 seconds

Total time to swim 10 laps = Number of laps × Average time per lap

= 10 × 25.98

= 259.8 seconds

It took longer for Darya to swim

13 laps than for Kana to swim 10 laps.

How much longer?

= 305.5 seconds - 259.8 seconds

= 45.7 seconds

7 0
3 years ago
Help which expression is equivalent to this one? cuhhhhh.....!!
Kay [80]

Answer:

3^ 6

Step-by-step explanation:

3^-2 * 3^8

We know that a^b * a^c = a^(b+c)

3^(-2+8)

3^ 6

5 0
3 years ago
Read 2 more answers
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