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faltersainse [42]
3 years ago
14

Use the diagrams to answer the problems,

Mathematics
1 answer:
Rudik [331]3 years ago
3 0
A) DEC

b) 2x - 8

c) x = 2

d) 5



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It costs $8.31 to power one laptop computer for one year. How much does it cost to power 10 laptop computers for one week? Round
anyanavicka [17]

Answer:

63

Step-by-step explanation:

There are 52.143 weeks in a year so 52.143/8.31=6.3

So 10 x 6.3= 63

7 0
3 years ago
Find the solution to the system of equations. y= 2x + 3 (-1, [?]) ​
Dmitry_Shevchenko [17]

Answer:

(-1, 1)

Step-by-step explanation:

plug in -1 for x

y = 2(-1) + 3

y = -2 + 3

y = 1

(-1, 1)

7 0
3 years ago
Calculate AD and hence BD.
Vilka [71]

Answer:

AD = 15 cm , BD = 3 cm

Step-by-step explanation:

Δ ABC is similar to Δ ADE ( by the AA postulate )

then the ratios of corresponding sides are in proportion, that is

\frac{AD}{AB} = \frac{DE}{BC} ( substitute values )

\frac{AD}{12} = \frac{10}{8} ( cross- multiply )

8 × AD = 12 × 10 = 120 ( divide both sides by 8 )

AD = 15 cm

AB + BD = AD , that is

12 + BD = 15 ( subtract 12 from both sides )

BD = 3 cm

7 0
2 years ago
please help :) Which number is less than 2.167 × 10 to the 4 power? A. 9,978 B. 1.1 x 10 to the 6 power C. 56,344,000 D. 2.468 ×
zheka24 [161]

Answer: A

Step-by-step explanation

2.167x10^4 = 21,670

                   = 9,978

1.1x10^6      = 1100,000

                   = 56,344,000

2.468x10^5 =  246,800

8 0
3 years ago
Read 2 more answers
The points A,B and C lie on a straight line
aev [14]

I think 0 but if I am wrong I'm sorry

Step-by-step explanation:

6 0
2 years ago
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