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statuscvo [17]
3 years ago
5

PRETTY PLEASE help with scientific notion questions

Mathematics
1 answer:
Blizzard [7]3 years ago
4 0
Questions 1 and 2 are correct.

Question #3 is A

Question #4 is C

Question #5 is C
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What is the length of JM in the given figure?
umka21 [38]

Answer:  B. 30

<u>Step-by-step explanation:</u>

When given a secant and a tangent, the formula is:

exterior of secant × secant = tangent²

                     KM   ×    JK     =    LK²

                      10   ×  (JM + 10) = 20²

                            10JM + 100 = 400

                                     10JM = 300

                                         JM =  30

7 0
2 years ago
Select all expressions that are equivalent to 5n-30
mamaluj [8]

Answer: everything EXCEPT 5(n-30)

Step-by-step explanation:

8 0
2 years ago
The equation t^3=a^2 shows the relationship between a planet’s orbital period, T, and the planet’s mean distance from the sun, A
ankoles [38]

Answer:

     2√2

Step-by-step explanation:

We can find the relationship of interest by solving the given equation for A, the mean distance.

<h3>Solve for A</h3>

  T^3=A^2\\\\A=\sqrt{T^3}=T\sqrt{T}\qquad\text{take the square root}

<h3>Substitute values</h3>

The mean distance of planet X is found in terms of its period to be ...

  D_x=T_x\sqrt{T_x}

The mean distance of planet Y can be found using the given relation ...

  T_y=2T_x\\\\D_y=T_y\sqrt{T_y}=2T_x\sqrt{2T_x}=(2\sqrt{2})T_x\sqrt{T_x}\\\\D_y=2\sqrt{2}\cdot D_x

The mean distance of planet Y is increased from that of planet X by the factor ...

  2√2

8 0
2 years ago
5x-2+3x=17+12x-23<br> please show all steps
vlabodo [156]
5x-2+3x=17+12x-23 combine like terms 
8x-2=12x-6
-8x    -8x
-2=4x-6
+6     +6
4=4x divide each side by 4 
x=1 
5 0
2 years ago
Solve the compound inequality. 6 – x &gt; 15 or 2x – 9 ≥ 3 A. x &gt; 9 or x ≤ 6 B. x &lt; 9 or x ≥ –6 C. x &gt; –9 or x ≤ –6 D.
Vesnalui [34]

Answer:

Step-by-step explanation:

Solve the compound inequality. 6 – x > 15 or 2x – 9 ≥ 3 A. x > 9 or x ≤ 6 B. x < 9 or x ≥ –6 C. x > –9 or x ≤ –6 D. x < –9 or x ≥ 6

4 0
2 years ago
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