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Fynjy0 [20]
3 years ago
7

Help pleaseee. 20 points!

Mathematics
1 answer:
Alja [10]3 years ago
6 0

Answer:

1. always true

2. always true

3. sometimes true

4. always true

5. never true

Step-by-step explanation:

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Falling rock on another planet was detected as moving at the following speeds, corresponding to the time suggested in the table
Lady bird [3.3K]

Answer:

B. s = 24t

Step-by-step explanation:

Since s varies directly with t, therefore, equation that will represent the relationship would take the form of s = my

m = rate of change

✔️Find the rate of change:

Rate of change using two given pairs, (0.5, 12) and (2.5, 60),

Rate of change (m) = ∆s/∆t = (60 - 12)/(2.5 - 0.5) = 48/2 = 24

✔️Substitute m = 24 into s = mt

s = 24t

5 0
3 years ago
What is the volume of this sphere?
Natasha_Volkova [10]

Answer:

Option c. 11,488.21 cm3

Step-by-step explanation:

<u><em>The picture of the question in the attached figure</em></u>

we know that

The volume of the sphere is equal to

V=\frac{4}{3}\pi r^{3}

we have

r=28/2=14\ cm ---> the radius is half the diameter

\pi =3.14

substitute

V=\frac{4}{3}(3.14)(14)^{3}

V=11,488.21\ cm^3

3 0
3 years ago
Simplify. left parenthesis negative 8 right parenthesis squared
DerKrebs [107]

Answer:

The solution of (-8)^{2} is 64.

Step-by-step explanation:

In Mathematics when two negative numbers are multiplied the result is a positive number, i.e. -a\times-b=ab.

The expression to be solved is: (-8)^{2}

Solve the above expression as follows:

(-8)^{2}=(-8)\times (-8)=64

Thus, the solution of (-8)^{2} is 64.

6 0
2 years ago
Help on this problem​
murzikaleks [220]

Answer:

8/3

Step-by-step explanation:

4 0
2 years ago
A right triangle is shown below.<br> Which measurement is the closest to the value of x?
REY [17]

Answer:

35°

Step-by-step explanation:

First you find the sine of x. That would be

sinx = opposite/hypotenuse

sinx = 57/100

sinx = 0.57

You can look it up if you want, but sin35 = 0.574

so the answer is 35°

6 0
3 years ago
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