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vodka [1.7K]
3 years ago
13

Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function y = 4x2 + 5x – 1.

Mathematics
1 answer:
Murljashka [212]3 years ago
3 0
Graph the parabola using the direction, vertex, focus, and axis of symmetry.
Direction: Opens Up
Vertex: <span>(−<span>5/8</span>,−<span>41/16</span>)</span>
Focus: <span>(−<span>5/8</span>,−<span>5/2</span>)</span>
Axis of Symmetry: <span>x=−<span>5/8</span></span>
Directrix: <span>y=−<span>21/8</span></span><span><span>   x.        y
</span><span><span>−3.       </span>20
</span><span><span>−2.        </span>5
</span><span><span>−<span>5/8.    </span></span><span>−<span>41/16
</span></span></span><span> 0.          <span>−1
</span></span><span>1.           <span>8


</span></span></span>

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The length of a side of a square field is 48m.Find the cost of ploughing the field at the rate of rs 25/m and cost of fencing th
brilliants [131]

Answer: rs 4800, rs 3456

Step-by-step explanation:j

given data:

length of a sid = 48m

cost of ploughing the field = rs 25/m

cost of fencing the field = rs 18/m

solution:

we know a square has four equal sides. so total length of the field is

= m ( 48 + 48 +48 + 48 )

= 192m

cost of ploughing the field

= 192m * rs 25

= rs 4800

cos of fencing the field

= 192m * rs 18

= rs 3456

8 0
3 years ago
Show me how to do 0.2268÷0.84
vazorg [7]

Answer:

0.27

Step-by-step explanation:

1. put it into the division form which is 0.2268/ 0.84.

2. then see if 0.84 can go into 0.22 if not then 0.226

3. if yes see how many times it can go into 0.226 which is 2.

4. continute these steps until there is no remainder

6 0
3 years ago
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BARSIC [14]
(1/3) bag = (1/4) lb.
multiply by 3 on both sides to get 1 full bag.
3(1/3)b = 3(1/4)
1 bag = (3/4) lb.
3 0
3 years ago
Help me and I will give you a brainlist and be your friend:).
Andrej [43]
41 x 0.15 = 6.15, which means only 6 bands will compete.

Hope this helps.
4 0
3 years ago
Read 2 more answers
One card is selected at random from a deck of cards. determine the probability of selecting a card that is less than 99 or a spa
Kitty [74]
Since these events are independent, you add the possibilities

the number of cards less than 9 is 32
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there are 52 cards in a deck, so you put those numbers over 52

32/52 + 13/52 = 45/52

the answer is 45/52
8 0
3 years ago
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