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3 years ago

What is 4.23x10-7 in standard form

Mathematics

1 answer:

alisha [4.7K]3 years ago

4 0

Answer:

i think it is all ready in standard form

is the original number 0.000000423 if yes then it is in standard form

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Write the equation of the line that passes through the point (2,-9)<br> and has a slope of -5.

balu736 [363]

Step-by-step explanation:

Find equation

y - y1 = m(x - x1)

y + 9 = -5(x - 2)

y = -5x + 10 - 9

y = -5x + 1 → Equaton

7 0

2 years ago

What is the surface area of the given figure?

morpeh [17]

Answer:

D. 2,280 cm²

Step-by-step explanation:

Surface area of triangular prism = bh + (S1 + S2 + S3)*L

Where,

b = 24 cm

h = 10 cm

S1 = 26 cm

S2 = 24 cm

S3 = 10 cm

L = 34 cm

Plug in the values

Surface area = 24*10 + (26 + 24 + 10)*34

= 240 + 2,040

= 2,280 cm²

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3 years ago

how many different lock combinations can be made using the digits 8, 2, 8 and 8 if the 2 is only used once in each combination?

alexandr402 [8]

2,8,8,8

8,2,8,8

8,8,2,8

8,8,8,2

4 combinations.

Hope this helps!

5 0

3 years ago

Two hot air balloons are traveling along the same path away from a town, beginning from different locations at the same time. He

kolbaska11 [484]

9514 1404 393

Answer:

D. Henry's started farther, went faster

Step-by-step explanation:

Henry's balloon traveled 18 additional miles (from 30 to 48) in 2 hours, so had a speed of 18mi/(2h) = 9 mi/h. The equation for his position could be ...

y = 9x +30 . . . . . 9 is the rate of change; 30 is the initial value

Comparing this to Tasha's position function, we see her balloon started 20 miles from town and traveled 8 miles per hour.

Henry started farther from town and traveled faster.

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3 years ago

If NQZ ~ CBK, find BK<br><br> Look at picture

nevsk [136]

Answer:

BK=39/7

Step-by-step explanation:

because NQZ~CBK

so BK/QZ = TZ/KF

(4x+1)/(2x+7) = 27/45 = 3/5

5(4x+1) = 3(2x+7)

20x + 5 = 6x + 21

14x = 16

x = 8/7

=> BK = 4(8/7)+1 = 39/7

5 0

3 years ago