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posledela
3 years ago
6

6800 seconds to hours

Mathematics
2 answers:
docker41 [41]3 years ago
8 0

Answer:

It is about 1.89 hours

Step-by-step explanation:

earnstyle [38]3 years ago
7 0
1.89 is the correct answer:) hope this helps
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Find the integer that makes this subtraction statement true -3 - ? = -5
Elenna [48]

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{2}}}}}

Step-by-step explanation:

Let the missing integer be x

Solve for x

\sf{ - 3 - x =  - 5}

Move 3 to right hand side and change it's sign

\dashrightarrow{ \sf{ - x =  - 5 + 3}}

The negative and positive integers are always subtracted but posses the sign of the bigger integer

\dashrightarrow{ \sf{ - x =  - 2}}

Change the signs of both sides

\dashrightarrow{ \boxed{ \sf{x = 2}}}

Hope I helped!

Best regards! :D

7 0
3 years ago
What is the length of side s of the square shown below?
AnnZ [28]

Answer:

F

Step-by-step explanation:

Using the properties of 45-45-90 triangles

8=x*sqrt(2)

4sqrt(2)=x

6 0
3 years ago
Can yall help me with this<br> WILL GIVE BRAINLIEST
dexar [7]
19 guests because each guest is $2 each according to the question.
6 0
2 years ago
Read 2 more answers
Please help me at this wit steps how did you did it
balu736 [363]

Answer:

5. LCM of 7 and 14: <u> </u><u> </u><em><u>1</u></em><em><u>4</u></em><em><u>. </u></em>

multiples of 7: <u> </u><u> </u><u>7</u><u>,</u><u> </u><u>1</u><u>4</u><u> </u>

multiples of 14: <u> </u><u>1</u><u>4</u><u> </u>

LCM of 8 and 12: <u> </u><u> </u><em><u>2</u></em><em><u>4</u></em><em><u>. </u></em>

multiples of 8: <u> </u><u> </u><u>8</u><u>,</u><u> </u><u>1</u><u>6</u><u>,</u><u> </u><u>2</u><u>4</u><u> </u>

multiples of 12: <u> </u><u> </u><u>1</u><u>2</u><u>,</u><u> </u><u>2</u><u>4</u><u> </u>

Step-by-step explanation:

.

5 0
2 years ago
In 2008, data from the Center for Disease Control revealed that 28.5% of all male teenagers, aged 18-19 and attending U.S. colle
m_a_m_a [10]

Answer:

a) H0 : u = 28.5%

H1 : u < 28.5%

b) critical value = - 1.645

c) test statistic Z= - 1.41

d) Fail to reject H0

e) There is not enough evidence to support the professor's claim.

Step-by-step explanation:

Given:

P = 28.5% ≈ 0.285

X = 210

n = 800

p' = \frac{X}{n} = \frac{210}{800} = 0.2625

Level of significance = 0.05

a) The null and alternative hypotheses are:

H0 : u = 28.5%

H1 : u < 28.5%

b) Given a 0.05 significance level.

This is a left tailed test.

The critical value =

-Z_0.05 = -1.645

The critical value = -1.645

c) Calculating the test statistic, we have:

Z = \frac{p' - P}{\sqrt{\frac{P(1-P)}{n}}}

Z = \frac{0.2625 - 0.285}{\sqrt{\frac{28.5(1-28.5)}{800}}}

Z = -1.41

d) Decision:

We fail to reject null hypothesis H0, since Z = -1.41 is not in the rejection region, <1.645

e) There is not enough evidence to support the professor's claim that the proportion of obese male teenagers decreased.

5 0
3 years ago
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