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Sauron [17]
3 years ago
11

Gabriella drives her car 340 miles and averages a certain speed. If the average speed had been 8 mph less, she could have travel

ed only 300 miles in the same length of time. What is her average speed?
Mathematics
1 answer:
Elena L [17]3 years ago
5 0
Most likely would be 42 because 340-8=332 then 332 divided by 8=41.5 and if you round it is 42.
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Which side of XYZ is the longest? <br><br>A. xy<br>B. xz<br>C. yz<br>D. cannot be determined​
Eddi Din [679]

Answer:

the answer is x because its small

4 0
3 years ago
a 1ft long piece of wire needs to be divided into two pieces which will form the shape of a circle and a square. Determine the l
yan [13]

Answer:

Length of wire for circle is 0.44 ft

Length of wire for square is 0.56 ft

Step-by-step explanation:

Let x is circumference of the circle

then

(1-x) = perimeter of the square

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r =  (x/2.π)

Find the area of the circle

a =  π(x/2π)^2

a =  π(x^2/4π^2)

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a =  x^2/4π

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a =  (1-x/4)^2

a =  (1-2x+x^2)/16

Total area

A =  (x^2/4π)+(1-2x+x^2/16)

A = 4x^2+3.142-6.284x+3.142x^2

A = 7.142x^2-6.284x+3.142

Find the axis of symmetry [x = -b/(2a)]

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x =  6.284/14.284

x = 0.44 ft, the piece of wire creating a circle

and

1 - 0.44 = 0.56 ft, the piece of wire creating the square

These lengths should give minimum area of the circle and square together

7 0
2 years ago
7x2+3[81-(4x6)]<br> Simplify
4vir4ik [10]
P E M D A S

Pren
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5 0
3 years ago
Read 2 more answers
What is 36 to 21 ratio in simplest form?
OLga [1]
36:21 in simplest form is 12:7, because 3 goes into both 36 and 21. Simplifying ratios is essentially the same thing as simplifying fractions. Once we have 12:7, we can't reduce any further, because 7 is prime.

Hope this helps!
7 0
3 years ago
Please help me please help me please help me please help me please help me please help me please​
Serga [27]

Answer:

first one is square root

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4 0
2 years ago
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