Answer:
- <u>Hannah was not speeding because her speed was about 61 mph, which is below the speed limit.</u>
Explanation:
Just to correct some typos, this is the complete question:
<em />
<em>The equation d=0.05v² + 1.1v models the distance, d, that it takes a car traveling at a speed of v miles per hour to come to a complete stop. If Hannah’s car stopped after travelling 250 feet on a highway with a speed limit of 65 mph, was Hannah speeding? Explain using math whether she was speeding and how you know.</em>
<em />
<h2>Solution</h2>
<em />
To find whether Hannah was speeding, you must find the velocity that is solution for the equation:
<em />
Write it in standard form:
Use the quadratic formula:
The speed can only be positive; thus, it is about 61 miles per hour, which is below the speed limit of 65mph.
In conclusion, she was not speeding.
The answer: [B]: h = 2A / (b1 + b2) .
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Explanation:
Given: A = (½) * (b1 + b2) * h ;
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→Multiply EACH side of the equation by "2", to get rid of the fraction, "<span>½";
</span>____________________________________________________________
→ 2*A = 2 * (½) * (b1 + b2) * h ;
→ 2* A = 1 * (b1 + b2) * h ;
→ 2A = (b1 + b2) * h ;
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→ Now, divide EACH side of the equation by: "(b1 + b2)" ; to isolate "h" on one side of the equation;
__________________________________________________________
→ 2A / (b1 + b2) = [(b1 + b2) * h] / (b1 + b2) ;
→ 2A / (b1 + b2) = h ; ↔ h = 2A / (b1 + b2) ; which corresponds to:
"Answer choice: [B]" .
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Answer:
sorry i tried but it is to hard
Step-by-step explanation:
keep strOng u will get it
Hi! X = 2
Because 4 + 10 = 14. 16-14 = 2
x =2
Does this make sense?
Please rate well, give thanks, mark as brainliest, and u can friend me if you want!
Answer:
Hope it works for u
Step-by-step explanation:
As we have given two shapes bathroom
square and rectangle
Parameter of square= sum of all the sides ( : In square all sides are equal
Parameter of square= 4*L = 4*(x+3) (:L=x+3
similarly,
In rectangle opposites sides are equal hence
Perimeter of rectangle= 2*length+2*width ( : length=x+4,width can't be seen clearly so I assume and take it width=x+1 hope this is equal to the width of ur question otherwise do the calculation by ur self).
Perimeter of rectangle= 2*(x+4)+2(x+1)
so now we have to find the value of "x" for which both perimeter are equal, so
perimeter of square= perimeter of rectangle
4*(x+3)=2*(x+4)+2(x+1) we can also write as
<h2>
2(x+3)+2(x+3)=2(x+4)+2(x+1)</h2><h3>
This is the linear equation required</h3><h3>
now to find value of "x"</h3><h3>
simplify both sides, we get</h3><h3>
4x+12=4x+10</h3><h2>
0≠2 so that not true and also there is no value of "x"</h2>
for which both parameters become equal
<h2>
so from my side "b" option is correct</h2>
Please brain-list it if u find it help-full it requires effort!
