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lbvjy [14]
3 years ago
13

Find the solutions to the equation −16t2+40t+5=10 using the quadratic formula.

Mathematics
1 answer:
dimulka [17.4K]3 years ago
5 0

Answer:

x1= \frac{5-2\sqrt{5} }{4} \\  x2=\frac{5+2\sqrt{5} }{4}

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Write a story problem about the lunchroom that matches the equation 5 +8+2=15.
zepelin [54]

Step-by-step explanation:

Kyrn, Tiler, and Zack went to buy their lunches. Kyrn bought a turkey sandwich and a bottle of water that only cost $5. Tiler bought only a ham and cheese sandwich that cost $2. Zack bought two slices of pizza and a bottle of cola that cost $8. How much money do they have to pay in total?

Note: I hope this is what you were looking for.

4 0
3 years ago
If y=2x- 3, find the value of y when x=2
Leviafan [203]

2x-3=y

y=2*2-3=

y=4-3

y=1

4 0
3 years ago
Read 2 more answers
A factory has four machines that produce the same item. Machines 1 and 2 each produce 20% of the total output, while machines 3
andrezito [222]

Answer:

The answers are a. 0.27 b. 0.2 c. 0.2 d. 0.3 e. 0.3 f. 1

Step-by-step explanation:

Total output = 100% = 1

Total defective = 6% + 5% + 8% + 8% = 27% = 27

a. Prob of defective item = total defective/total output

= 27/100

= 0.27

b. Prob of defective from machine 1 = 6/27 =0.2222

~ 0.2

c. Prob of item defective from machine2 = 5/27 = 0.1852

~0.2

d. Prob of de defective from machine 3 = 8/27 = 0.2963

~0.3

e. Prob of defective from machine 4

= 8/27 = 0.2963

~ 0.3

f. Sum of prob from b-e

0.2 + 0.2 + 0.3 + 0.3

= 1

4 0
4 years ago
Which angle would be complementary to
Viktor [21]
It’s EBD, CBE + EBD = 90* so the complentary angle to CBE is EBD
6 0
3 years ago
A parking meter contains dimes and quarters worth $17.15. There are 98 coins in all. Fi d how many of each there are.
RoseWind [281]

Answer:

49 Quarters and 49 Dimes

Step-by-step explanation:

So there is $17.15 in the machine. Let's start by establishing how many of each coin adds up to about $17.15.

Quarters (worth $0.25): 68.6

Dimes (worth $0.10): 171.5

The secret is mostly just trial and error.

So we can start by using 49 Quarters which gets us to $12.25. Let's also add 49 Dimes which gets us to $17.15.


6 0
3 years ago
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