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nexus9112 [7]
3 years ago
8

Which of the following best represents the average speed of a fast runner?

Mathematics
2 answers:
romanna [79]3 years ago
8 0
10 meters per second is the best way to describe it. Track events such as the 400 relay, or the 50 meter dash are measured in Meters. so 10 meters per second
juin [17]3 years ago
4 0
10 meters per second. please mark as brainliest
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Anyone know the answer?
uysha [10]
AB = CB
Because they are congruent
Therefore CB = 5.9
Given perimeter = 17
CB+BE+ED+DC = 17
5.9 + BE + 2.8 + 5.6 = 17
BE + 14.3 = 17
BE = 17 - 14.3
= 2.7
Hope I helped
If I did please give brainlest answer
Thanks
8 0
3 years ago
If k(x) = b x and k(a) = 0.2, which option below gives the value of k(–3a)?
Ratling [72]
The answer is -0.6a because multiplying pos and neg equals neg thats why its a neg
4 0
3 years ago
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A block of wood has the mass of 180 grams. It is 10cm long, 6cm wide and
pychu [463]

Answer:

.75g/cm^3

Step-by-step explanation:

density = mass / volume

We already know the mass - 180g

Find the volume

10cm * 6cm * 4cm = 240 cm^{3}

Plug in the volume and mass in the density formula

density = 180g / 240cm^{3}

Simplify

Density = .75g/cm^{3}

5 0
3 years ago
Solve the system of equations of equations by graphing on your calculator rounded to 3 decimal spaces
ozzi

Answer:

1 and 1/2 x2 =3

Step-by-step explanation:

3 0
3 years ago
What is the surface area of this right rectangular prism? Enter your answer in the box.
Anon25 [30]
Hello!

We must use a certain formula to calculate the surface area of a rectangular prism. The formula is:

A = 2 (wl + hl + hw)

Substitute:

A = 2(4 × 5) + (2 × 5) + (2 × 4)

A = 2(20 + 10 + 8)

A = 76 cm squared

ANSWER:

The surface area of the right rectangular prism is 76 centimetres squared.
3 0
3 years ago
Read 2 more answers
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