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Citrus2011 [14]
2 years ago
5

I’m doing a test and it’s already hard

Mathematics
2 answers:
Goryan [66]2 years ago
8 0

Answer:

I mean, the best thing to do is to guess the best guess. I'm not really the type that knows everything, though.

Allushta [10]2 years ago
6 0

Answer:

I mean, the best thing to do is to guess the best guess. I'm not really the type that knows everything, though.

Step-by-step explanation:

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For each part below, use the figure to fill in the blank.
jenyasd209 [6]

Answer:

Step-by-step explanation:

5 0
2 years ago
Which statistic is a measure of how data are dispersed in a population and can be used to give context to larger data sets
OLEGan [10]

Answer:

standard deviation

Step-by-step explanation:

The standard deviation is defined as the measure of how spread out the numbers are in a given population. In other words, statistics refers to the amount of the dispersion or variation of a set of given values.

It is denoted by the Greek letter sigma, σ.

Thus the standard deviation is the measure of how dispersed the data are in the population which can be used to provide context to a larger data sets.

7 0
3 years ago
Solve the system y= -x + 7 and y=0.5(x - 3)^2
solniwko [45]

Answer:

(- 1, 8 ) and (5, 2 )

Step-by-step explanation:

Given the 2 equations

y = - x + 7 → (1)

y = 0.5(x - 3)² → (2)

Substitute y = 0.5(x - 3)² into (1)

0.5(x - 3 )² = - x + 7 ← expand and simplify left side

0.5(x² - 6x + 9) = - x + 7 ( multiply both sides by 2 )

x² - 6x + 9 = - 2x + 14 ( subtract - 2x + 14 from both sides )

x² - 4x - 5 = 0 ← in standard form

(x - 5)(x + 1) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

x + 1 = 0 ⇒ x = - 1

Substitute these values into (1) for corresponding values of y

x = 5 : y = - 5 + 7 = 2 ⇒ (5, 2 )

x = - 1 : y = 1 + 7 = 8 ⇒ (- 1, 8 )

8 0
2 years ago
Read 2 more answers
The rate on a cell phone is $0.22 per minute. If Katelyn uses her phone for 1 hour, how much does she pay
serg [7]

Answer:

$13.20

Step-by-step explanation:

7 0
3 years ago
List the factor pairs of 240
Inessa [10]
1;240 2;120 3;80 4;60 5;48 6;40 8;30 10;24 12;20 15;16
7 0
2 years ago
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