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melisa1 [442]
3 years ago
12

Evaluate 9u-2z if u = 7 and z =-1

Mathematics
1 answer:
klasskru [66]3 years ago
8 0
To solve problems where we already know the value of the variables, we must simply substitute in that value for every presence of the variable.

=9u-2z
=9(7)-2(-1)
=63-⁻2
=65

Using the math above, we can see that this equation equals 65.
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A praying mantis can grow up to 15cm long how long is this in mm
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150 millimeters! ! hope this helps you, in anyway
6 0
3 years ago
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7650 divided by__?___= 7.652
Ludmilka [50]

Answer:

1000

Step-by-step explanation:

i dont think if that 2 is in that question so i say that

 7650 divided by 1000=7.65

7 0
3 years ago
Hello please answer this thanks
Mandarinka [93]

2 inches in length for ever inch in width. This is because the points are (1,2),(2,4),(3,6) and many more like that. Every x coordinate goes up by one while every y coordinate goes up by two. When you do the y coordinate divided by the x coordinate for all of them, you get two. Two is the constant of proportionality

8 0
3 years ago
A recent survey found that 80.5% of households has Internet access and 82% of households had cable television. Also, it was repo
kirill115 [55]

Answer: 0.878

Step-by-step explanation:

Given : P( Internet access) = 80.5%= 0.805

P(cable television) = 82% = 0.82

P( Internet access and cable television) = 74.7% =0.747

Formula: P(A or B)= P(A ) + P(B) - P(A and B)

So, P( Internet access or cable television)  =  P( Internet access)  + P(cable television) -P( Internet access and cable television)

= 0.805+0.82-0.747

=  0.878

The probability that a randomly selected household in the survey had either Internet access or cable = 0.878

5 0
3 years ago
Choose the correct answer. two cars leave phoenix and travel along roads 90 degrees apart. if car 1 leaves 30 minutes earlier th
Elza [17]
The equation of movement for each car is given by:
 Car 1:
 d1 = v1 * t1
 Substituting values:
 d1 = 42 * 3.5
 d1 = 147 miles
 Car 2:
 d2 = v2 * t2
 d2 = v2 * (t1 + 0.5)
 Substituting values:
 d2 = 50 * (3.5 + 0.5)
 d2 = 200 miles
 The distance between the cars is:
 d = root ((d1) ^ 2 + (d2) ^ 2)
 d = root ((147) ^ 2 + (200) ^ 2)
 d = 248.2 miles
 Answer:
 
They will be 248.2 miles far.
3 0
4 years ago
Read 2 more answers
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