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Mathematics

2 answers:

snow_lady [41]3 years ago

7 0

Answer:

x = 3 ×10^2

Step-by-step explanation:

To determine how many times larger the culture sample was compared to a week earlier

We divide the values of the present sample to the past sample size

3.9 x 10^5/ 1.3 ×10^2

3.9/1.3 x10^5-3 = 3 ×10^2

Lubov Fominskaja [6]3 years ago

3 0

Answer-

the first box is 3 the second is 10 to the third then the last = 3,000

Step-by-step explanation:

just did it

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Chords AB and CD intersect at point E, AE = 10, EB = 4, and CE = 8. Therefore, ED =

Genrish500 [490]

So here is how we are going to find out what is ED.
Based on the given figure, it states that, AE is 10, and EB is 4 and CE is 8.
So, <span>(AE/CE)=(ED/EB)
10/8 = ED/4 <<multiply both sides by the common denominator which is 8 and the result would be:
80/8 = 8ED/4
10 = 2ED <<divide both sides by 2 and we get
ED = 5.
Therefore, the measurement of ED is 5.
Hope this answer helps. Let me know if you need more help next time!</span>

5 0

3 years ago

Read 2 more answers

Selena earned $200 last month babysitting. She used 25 of her earnings to buy a video game. How much did she spend on the video

babymother [125]

Answer:

See below

Step-by-step explanation:

If $25, she spent $25.

If 25%, she spent (0.25)*(200) = $50.

3 0

2 years ago