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jeka94
3 years ago
12

Please look at photo attached :)

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
8 0

Answer:

210

Step-by-step explanation:

what i did was 30*14/2 and i got 210

answer is 210

Lisa [10]3 years ago
6 0

Answer:

210 squared

Step-by-step explanation:

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A ball is thrown from an initial height of 3 meters with an initial upward velocity of 30 m/s. The ball's height h (in meters) a
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now, it doesn't give us nice looking integers, so let's plug that into the quadratic formula.

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t=\cfrac{6\pm\sqrt{28}}{2}\implies t=\cfrac{6\pm\sqrt{2^2\cdot 7}}{2}\implies t=\cfrac{6\pm 2\sqrt{7}}{2}\implies t=\cfrac{2(3\pm 1\sqrt{7})}{2} \\\\\\ t=3\pm \sqrt{7}\implies t= \begin{cases} 3+\sqrt{7}\\ 3-\sqrt{7} \end{cases}\implies t\approx \begin{cases} 5.65\\ 0.35 \end{cases}

8 0
3 years ago
carmel can drive 320 miles on one tank of gas, and one tankful costs $39. how many tanks of gas will she need to drive 2,240 mil
BARSIC [14]

Answer:

She will need 7 tanks of gas. It will cost $273.

Step-by-step explanation:

First, we divide the amount of miles that she needs to go by the amount she can drive on one tank.

2240/320 = 7

She will need 7 tanks. Multiply the cost of one tank by 7.

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4 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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6 0
3 years ago
Read 2 more answers
I need help please !!!!!!!!
vredina [299]

Answer:

a= 1

b= 3

c= 1

d=2

e= 6

f= 8

Step-by-step explanation:

Plug the x value into the equation above the letter that you solve for.

This would give

a = 2^0 = 1 (since any number to the zero power is 1)

b = 3* 2^0 = 2 (we already know what 2^0 is we just have to multiply it with 3)

c= 2^ (3*0) = 2^0= 1 (when 3x is saying that you multiply the x value by zero then raise 2 to what that equals. any number times zero is zero and any number raised to the zero power is 1.

d= 2^1 = 2 (any number to the first power is that number)

e= 3* 2^1(we already know the value of 2^1 is we just have to multiply it with 3)

f= 2^(3*1)= 2^3 = 8 ( same rules as with c just multiply x, which equals 1 in this case with 3. 1 times any number is that number so you get 3. then raise 2 to the 3rd power which is 8.

6 0
3 years ago
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