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Tatiana [17]
3 years ago
11

1. 4x - 5 ( for x is 4 )

Mathematics
2 answers:
Readme [11.4K]3 years ago
5 0
1. 11.
2. 11
3. 27
4. 8
vodka [1.7K]3 years ago
3 0

Answer:

11

12

24

16

substitute variable for the number and solve  

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To save money, you put $200 in your bank account each week. After saving for 4 weeks, you have $1,700$ dollars in your account.
kozerog [31]
Let's say the savings in your account are given by $V, the number of weeks by n and the starting balance by $x:
V = x + 200n

Now if after saving for 4 weeks you have $1700 in your account, then:
1700 = x + 200*4
1700 = x + 800
x = 900, thus your starting balance is $900

Using this information we can now write up the general equation for the savings at the end of each week:
V = 900 + 200n
4 0
3 years ago
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Simplify y 2 + 4y - 16y + 3y 2.
algol13
First, add or subtract all variables
y2 + 4y - 16y + 3y = -7y
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Liam's mass is 102.1 kg. choose the best approximation of Liams mass
bagirrra123 [75]

Question:

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3 years ago
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What the answer ......
attashe74 [19]
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4 0
3 years ago
I need help with those two questions
qaws [65]
9) It helps to draw a picture.  Since one angle is 60°, the other angle is 120°.  When you draw the ddiagonal lines, you will see that you end up with a 30°-60°-90° triangle where √3 is the hypotenuse. The longest diagonal will be across from the 60° angle, which will be length a√3. The length of the hypotenuse is 2a. (Remember: a, a√3, 2a are lengths for this special triangle)
2a = √3 → a = √3/2. 
side across from 60° = a√3 = (√3/2)·√3 → side from across 60° = 3/2
Remember that this is only one-half of the diagonal of the rhombus so multiply that by 2.
Length of longest diagonal is 3.

10) Volume of a square pyramid = (1/3) B · h, where B is the area of the base
200 = (1/3)B(12)
 50  = B
Since the base is a square, then each side is √50 (which equals 5√2).

Now, to find the lateral edge, use Pythagorean Theorem (a² + b² = c²).
Height (a) = 12,  base (b) = 5√2, and lateral edge (c) is unknown.

(12)² + (5√2)² = c²
144  +   50     = c²
     194           = c²
     √194         = c

Lateral edge is √194.




3 0
3 years ago
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