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-BARSIC- [3]
2 years ago
8

What is the answer to this -11 - (-3)

Mathematics
2 answers:
lana [24]2 years ago
6 0

Answer:

=−8

Step-by-step explanation:

=−11−(−3)

=−11+3

=−8

BaLLatris [955]2 years ago
5 0

Answer:

  • <u>-</u><u>8</u>

Step-by-step explanation:

  • -11 - (-3) =

(-11) + 3

<u>-</u><u>8</u>

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90°

Step-by-step explanation:

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Find the y-intercept of the line: 9x – 8y + 5 = 0
NISA [10]

Answer:

-8y = -9x - 5

y = (9/8)x + 5/8

Step-by-step explanation:

y-int 5/8

5 0
3 years ago
En la expresion algebraica x², ¿que indica el número 2 en la base x?
tino4ka555 [31]

Answer:

En la expresión, 2 representa la cantidad de veces que multiplicas x por sí mismo.

**Lo siento si mi español es malo, el inglés es mi primer idioma.

Step-by-step explanation:

8^{2} = 8 × 8 = 64

y^2= y × y

5 0
3 years ago
A past study claims that adults in America spend an average of 17 hours a week on leisure activities. A researcher wanted to tes
8090 [49]

Answer:

The claim is false.

Step-by-step explanation:

Given the data :

13 24 21 37 15 25 18 22 40 32

The sample mean and standard deviation can ben calculated for the given sample.

Using calculator :

Sample mean, xbar = 24.7

Sample standard deviation, s = 9.04

Sample size, n = 10

The hypothesis :

H0 : μ = 17

H1 : μ ≠ 17

The test statistic :

(xbar - μ) ÷ (s/√(n))

(24.7 - 17) ÷ (9.04/√(10))

7.7 / 2.8586990

Test statistic = 2.694

We can obtain the Pvalue, at α = 0.05 ; df = n-1 = 9

Pvalue = 0.0246

Since Pvalue < α ; we reject the null ; Hence, there is significant evidence to conclude that an adult American does not spend average of 17 hours in leisure

5 0
2 years ago
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