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pav-90 [236]
1 year ago
7

What is the value of the expression 4 x (2a - 1) if a = 3? 16 20 23 25

Mathematics
2 answers:
valentinak56 [21]1 year ago
6 0
3x2=6-1=5 then 5x4=20
olga_2 [115]1 year ago
4 0

Answer:

20

Step-by-step explanation:

⇒ Multiply 2 by 3

2 * 3 = 6

4 (6 - 1)

⇒ Distribute terms

4 * 5

20

Hence, the answer is 20.

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Solve BCD Round the answer to the nearest hundredth
lesya [120]

Answer:

A

Step-by-step explanation:

The measure of angle D can be found using the Interior Angle Sum of a Triangle.

The angles of a triangle add to 180. This means:

90 + 21 + x = 180.

111 + x = 180

x = 69

The solution is A.

Angle B is smaller than Angle D which means CD will be smaller than BC.

7 0
3 years ago
The expression 5 + 5x is equivalent to the expression
poizon [28]

Answer:

5(1+x)

Step-by-step explanation:

7 0
2 years ago
You have invested in three different stocks: Engineering Aces, Upton Clothiers, and Thompson Musical Instruments. Because you ha
Serga [27]

Answer:

answer is 0.001254.

Step-by-step explanation:

Given that you invested in 3 stocks of Engineering Aces, Upton Clothiers, and Thompson Musical Instruments.

Also given that each stock value is independent of the other.

Let E be the event changing in value by more than 10% in a given week for Engineering Aces,

U be the event changing in value by more than 10% in a given week for Upton Clothiers, and T be the event changing in value by more than 10% in a given week for Thompson Musical Instruments.

Given that P(E) =  = 19%

P(U) = 11%

P(T) = 6%

probability that all three will change by more than 10% in the same week

= P(EUT)

= P(E) P(U) P(T) since three events are independent.

=0.19(0.11)0.06

= 0.001254



8 0
3 years ago
Write the correct ratio (fraction) for each triangle.
Shalnov [3]

Answer:

21/20

20/29

21/20

20/29

21/29

20/21

Step-by-step explanation:

Use Soh Cah Toa for each, using the right equation for the right angle

e.g for sin(z) we use the opposite/adjacent for that angle

  • the hypotenuse is the biggest size
  • the opposite is the side opposite to the angle you are using
  • the adjacent is the other side
8 0
1 year ago
I Need Help Wit My Assignments And I'm A Senior I HAVE TO GRADUATE
NikAS [45]
What is your question ? for help !
8 0
3 years ago
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