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Romashka-Z-Leto [24]
2 years ago
6

A road is 4350m long, correct to the nearest 10 metres. Kirsty drove along the road in 205 seconds, correct to the nearest 5 sec

onds.
The average speed limit for the road is 80km/h
Could kirsty’s average speed have been greater than 80km/h?
Mathematics
1 answer:
aalyn [17]2 years ago
7 0

Answer:

No

Step-by-step explanation:

4350 max = 4355m

205 min = 202.5

highest speed = max/min

= 4355/202.5

=21.5m/s

=77.4km/h

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Question 4
sleet_krkn [62]

Answer:

\displaystyle about\:8\:units

Step-by-step explanation:

Use the Distance Formula:

\displaystyle \sqrt{[-x_1 + x_2]^2 + [-y_1 + y_2]^2} = D \\ \\ \sqrt{[6 - 1]^2 + [-7 + 1]^2} = \sqrt{5^2 + [-6]^2} = \sqrt{25 + 36} = \sqrt{61} ≈ 7,810249676 ≈ 8

Since we are talking about distance, we ONLY want the NON-NEGATIVE root.

I am joyous to assist you anytime.

3 0
3 years ago
Which of the following is a perfect square trinomial ? PLEASE HELP!!!!!!!!!!!!!!!!!
zepelin [54]

Answer:

The answer is C. 16x² - 56xy + 49y²

Step-by-step explanation:

A perfect square trinomial is the result of a squared binomial, the perfect square trinomial would be a² + 2ab + b², as that is what you get when you expand the brackets.

6 0
3 years ago
Bee + ant= 10, ant - bee = 8, ant × bee= ?
Alona [7]

The Correct Answer Is...

<em><u>9.</u></em>

Any Questions? Comment Below!

<em><u>-AnonymousGiantsFan</u></em>

7 0
3 years ago
Inherently, industry analysis is a static framework, but it can be used in a quasi-dynamic way by applying the framework at diff
Liula [17]

Answer:

True

Step-by-step explanation:

Quasi-dynamic is a framework which accounts for inertial effects. In this we determine the long term behavior of state. It can be used to identify industry analysis where the industry is in a static state. Quasi static is a thermo-dynamic process that remains in internal equilibrium.

3 0
3 years ago
<img src="https://tex.z-dn.net/?f=108cm%20%7B%3F%7D%5E%7B2%7D%20" id="TexFormula1" title="108cm {?}^{2} " alt="108cm {?}^{2} " a
scoundrel [369]
A(base)=6*6=36
A( triangle)=1/2*(base of the triangle)*height( of the triangle)=1/2*6*4=12
one base +4 triangles=36+4*12=36+48 =84 cm²
8 0
3 years ago
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