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cluponka [151]
1 year ago
13

Thomas given the equation for 2 a + 3 equals negative 3x - 1 + 31 - 11/8 to solve some of the steps in the reasons have already

been completed stay a property of numbers for each missing reason
Mathematics
1 answer:
Thepotemich [5.8K]1 year ago
7 0

4(2a + 3) = -3(a - 1) +31 - 11a

firstly, we open the parentheses at the both sides of the equation

4 * 2a + 4*3 = -3 *a - (-3) * 1 +31 -11a

8a + 12 = -3a + 3 + 31 - 11a

we collect the like terms

8a + 3a + 11a +12 = 3 + 31

11a + 11a +12 = 34

22a + 12 = 34

the next step is to isolate 22a then we have

22a = 34 -12

22a = 22

divide both sides by 22

22a/22 = 22/22

a = 1

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PLEASE HELP!! I DON'T UNDERSTAND IT!!
tia_tia [17]
Use the formula  V=Bh

V is 306.52
B is 19.4

to get (h) height you divide

306.52 divided by 19.4= 15.8


3 0
3 years ago
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Kevin is 6 years older than Timothy. 4 years ago, Kevin was twice as old as Timothy. Find their present ages.
Novosadov [1.4K]

Step-by-step explanation:

Hope it helps.

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6 0
3 years ago
The figure shown is a rectangular prism. Which edges are parallel to HK ?
kolezko [41]

Line HK is the line of intersection between pllanes AMKH and HKDY.

Consider all given options:

1. Line PB is the line of intersection between pllanes APBM and PBDY. Since planes APBM || HKDY and AMKH || PBDY, then lines PB and HK are parallel.

2. Line AM is the line of intersection between pllanes APBM and AMKH. Since planes APBM || HKDY and parallel planes are cut by plane AMKH, then lines AM and HK are parallel.

3.  Line YD is the line of intersection between pllanes HKDY and AMKH. Since planes AMKH || PBDY and parallel planes are cut by plane HKDY, then lines YD and HK are parallel.

4. Lines HA and HK intersect each other at point H, thus they are not parallel.

5. Lines BM and HK  are not parallel, because MB || DK and DK intersect HK at point K.

Answer: correct choices are A, B, C.

4 0
3 years ago
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A block of ice weighing 50 kilograms begins to melt. Each hour the block of ice loses 10% of its weight. Let W be the weight in
tamaranim1 [39]

Answer:

yes

Step-by-step explanation:

3 0
4 years ago
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Suppose 50 percent of the customers at Pizza Palooza order a square pizza, 70 percent order a soft drink, and 35 percent order b
Firdavs [7]

Answer:

Ordering a soft drink is independent of ordering a square pizza.

Step-by-step explanation:

20% more customers order a soft drink than pizza, therefore they cannot be intertwined.

Given: P(A)=0.5 & P(B)=.7

P(A∩B) =  P(A) × P(B)

=  0.5 × .7

=  0.35

P(A∪B) =  P(A) + P(B) - P(A∩B)

=  0.5 + .7 - 0.35

=  0.85

P(AΔB) =  P(A) + P(B) - 2P(A∩B)

=  0.5 + .7 - 2×0.35

=  0.5

P(A') =  1 - P(A)

=  1 - 0.5

=  0.5

P(B') =  1 - P(B)

=  1 - .7

=  0.3

P((A∪B)') =  1 - P(A∪B)

=  1 - 0.85

=  0.15

7 0
3 years ago
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