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lisabon 2012 [21]
3 years ago
8

Complete the square. Fill in the number that makes the polynomial a perfect-square quadratic. 2 + 2) +​

Mathematics
1 answer:
daser333 [38]3 years ago
7 0
Try using either the app the calculater not like those other ones this calculator can solve fractions and almost any other thing
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IQ scores are measured with a test designed so that the mean is 120 and the standard deviation is 12. Consider the group of IQ s
Shkiper50 [21]

Answer:

Step-by-step explanation:

Here a score is considered to be "unusual" if higher than 2 std. dev. from the mean OR lower than 2 std. dev. from the mean.

Thus, any score lower than (120 - 2[12]), or 96, or higher than (120 + 2[12] ), or 144, is considered to be "unusual."

7 0
2 years ago
Sue wants to increase 160 by 4%
ivann1987 [24]

Answer:

a) To increase 160 by 4% we multiply by 1.04

b) To decrease 160 by 6% we multiply by 0.94

Step-by-step explanation:

a) Here we have to increase 160 by 4% we are to note that;

4 \% = \frac{4}{100} = 0.04

Therefore, increasing 160 by 4% is to add additional 0.04×160 to 160

That is 160 + 0.04×160 = 160×(1 + 0.04) = 160×1.04

Therefore Sue should have multiplied 160 by 1.04 to increase 160 by 4%.

b) Here to decrease 160 by 6%, we subtract 6% of 160 from 160 that is;

Decrease 160 by 6% = 160 - 160×0.06 = 160×(1 - 0.06) = 160 × 0.94 = 150.4

Hence to decrease 160 by 6% we multiply by 0.94.

8 0
3 years ago
Please look at the image for the question. Thanks for all the help
Finger [1]

Answer:

2

2x - 8 = -8bx

hope it helps

Step-by-step explanation:

6-8

=2

6 0
2 years ago
Please help ASAP I don’t know how to do this
Dafna11 [192]

Answer:

the answer for a is 0.045

6 0
3 years ago
Read 2 more answers
4. The sides of a triangle are in the ratio 2: 4:5.
Bad White [126]

Answer:

Step-by-step explanation:

Ratio: 2:4:5

Sides are : 2x , 4x , 5x

Second side = 56 cm

4x = 56

x= 56/4

x = 14

2x = 2*14 = 28 cm

4x = 4*14 =  56 cm

5x = 5*14 = 70 cm

Perimeter = 28 + 56 + 70 = 154 cm

5 0
3 years ago
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