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nadya68 [22]
3 years ago
14

Is -9 a rational number? yes no

Mathematics
2 answers:
Genrish500 [490]3 years ago
8 0

Answer:yes

Step-by-step explanation:

it can  be writtin as a ratio thefor it is a rational number

Contact [7]3 years ago
5 0

Answer:

yes

Step-by-step explanation:

it is a rational number because it's a whole number vs. a fraction or decimal

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HELP ME OUT PLS!!!!!​
miskamm [114]

Answer:

x = 26

Step-by-step explanation:

Supplementary angles mean that when the two angles are added together, they add up to 180. With this info, we can set the two expressions equal to 180

124 + (2x + 4) = 180.    

128 + 2x = 180    combine like terms

2x = 52      subtract both sides by 128

x = 26.      divide both sides by 2

5 0
3 years ago
A softball pitcher has a 0.675 probability of throwing a strike for each pitch and a 0.325 probability of throwing a ball. If th
Dafna11 [192]

Answer:

The probability that exactly 19 of them are strikes is 0.1504

Step-by-step explanation:

The binomial probability parameters given are;

The probability that the pitcher throwing a strike, p = 0.675

The probability that the pitcher throwing a ball. q = 0.325

The binomial probability is given as follows;

p(x) = _{n}C_{x}\cdot p^{x}\cdot q^{1-x}

Where:

x = Required probability

Therefore, the probability that the pitcher throws 19 strikes out of 29 pitches is found as follows;

The probability that exactly 19 of them are strikes is given as follows;

\binom{29}{19}(0.675)^{19}0.325^{10} = \frac{29!}{19!\times 10!}\times (0.675)^{19}\times 0.325^{10} = 0.1504

Hence the probability that exactly 19 of them are strikes = 0.1504

8 0
3 years ago
Macy has completed 78% of the 50 questions on the test. How<br> many questions has Macy completed?
mrs_skeptik [129]

Answer:

39

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A teepee has a circular floor with a diameter of 4 yards. What is the floors circumference
serious [3.7K]

Answer:

12.56

Step-by-step explanation:

If a circle has a diameter of 4, its circumference is 3.14*4=12.56.

3 0
3 years ago
An ore ship is traveling west toward Duluth on Lake Superior at 18 miles per hour. The bearing of Split Rock Lighthouse is 285de
goblinko [34]
We are given
v = 18 m/hr west
θ1 = 285°
θ2 = 340°

After 1 hours, the distance traveled by the ship is
dv = 18 mi

The distance between the ship and the lighthouse is
d = 18 / cos 340
Solve for d<span />
5 0
3 years ago
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