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ss7ja [257]
2 years ago
12

Evaluate another function please

Mathematics
1 answer:
kari74 [83]2 years ago
6 0

Answer:

70, I think

Step-by-step explanation:

f(10)= -10^2- 3(10)

f(10)= 100-30

f(10) = 70

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If Natalie walked 3/5 in 1/2 hour, how fast did she walk, in miles per hour?
melisa1 [442]
She walked .6 mph because 3/5 x 2= 6/10
1/2 x 2=1

6 0
3 years ago
Find an equivalent system of equations for the following system x + 2y = 2, -4x + 4y = -8
agasfer [191]

Answer:

2x + 4y = 4

-8x + 8y = -16.

Step-by-step explanation:

We can find an equivalent system by multiply the 2 equations by 2.

x + 2y = 2  multiplied by 2 is 2x + 4y = 4.

4 0
2 years ago
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No picture for this problem but here it is...
Vesnalui [34]

Answer:

The coordinates for X are (4, 8).

Step-by-step explanation:

4 0
2 years ago
The diameters of ball bearings are distributed normally. The mean diameter is 107 millimeters and the population standard deviat
tensa zangetsu [6.8K]

Answer:

0.6710

Step-by-step explanation:

The diameters of ball bearings are distributed normally. The mean diameter is 107 millimeters and the population standard deviation is 5 millimeters.

Find the probability that the diameter of a selected bearing is between 104 and 115 millimeters. Round your answer to four decimal places.

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score

μ is the population mean = 107 mm

σ is the population standard deviation = 5 mm

For x = 104 mm

z = 104 - 107/5

z = -0.6

Probability value from Z-Table:

P(x = 104) = 0.27425

For x = 115 mm

z = 115 - 107/5

z = 1.6

Probability value from Z-Table:

P(x = 115) = 0.9452

The probability that the diameter of a selected bearing is between 104 and 115 millimeters is calculated as:

P(x = 115) - P(x = 104)

0.9452 - 0.27425

= 0.67095

Approximately = 0.6710

8 0
3 years ago
A recent survey by the American Automobile Association showed that a
vichka [17]

Answer:

24

Step-by-step explanation:

3 0
3 years ago
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