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adelina 88 [10]
3 years ago
6

Nikki descended 20.4 meters from the ocean surface. She then ascended 13.6 meters.

Mathematics
1 answer:
Nostrana [21]3 years ago
6 0
6.8 meters
20.4-13.6=6.8 meters

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Yaritza is going to see a movie and is taking her 4 kids. Each movie ticket costs $13 and there are an assortment of snacks avai
anzhelika [568]

Answer:

Yaritza will have to pay $83.50 dollars to go to the movies.

It will cost $31.50 for 7 snacks for her family to share.

Step-by-step explanation:

6 0
3 years ago
Tara ran the 1600 M event at a constant speed in 5 minutes and 20 seconds. what was her speed
ollegr [7]

5 m/sec or 300m / min

using speed = \frac{distance}{time}

change 5 min 20 sec to seconds = (5 × 60) + 20 = 320 sec

speed = \frac{1600}{320} = 5m / second or

speed = 60 × 5 = 300m / minute



4 0
3 years ago
A researcher is testing a hypothesis of a single mean. The critical z value for a = .05 and a two‑tailed test is +1.96. The obse
grandymaker [24]

Answer:

The decision made by the researcher based on this information is to reject the null hypothesis.

Step-by-step explanation:

Two-tailed hypothesis test:

Critical value: z_c

Test statistic: z

If |z| < |z_c|, we do not reject the null hypothesis.

If |z| > |z_c|, we reject the null hypothesis.

In this question:

z_c = 1.96, z = -2.05, |z| = 2.05

Since |z| > |z_c|, we reject the null hypothesis.

The decision made by the researcher based on this information is to reject the null hypothesis.

4 0
3 years ago
What is the y-coordinate of the solution for the system of equations?
enot [183]
Y= 12 - x

27 + 3( 12 - x ) = 2x
7 0
3 years ago
Read 2 more answers
Use the formula for the area of a circle to solve for the radius of the circle if the area is 78.5cm^2
postnew [5]

Answer:

Area = PI * radius^2

radius = Sq Root (Area / PI)

radius = Sq Root (78.5 / PI)

radius = Sq Root (24.9873260654)

radius = 4.9987

radius = 5 (rounded)



Step-by-step explanation:


5 0
3 years ago
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