Answer:
sqrt(3/8) = t
.61237 = t
Step-by-step explanation:
h(t)=−16t^2+10
Let h(t) = 4
4 =−16t^2+10
Subtract 10 from each side
4-10 =−16t^2+10-10
-6 = -16 t^2
Divide by -16
-6/-16 = t^2
3/8 = t^2
Take the square root of each side
sqrt(3/8) = sqrt(t^2)
sqrt(3/8) = t
.61237 = t
We only take the positive since time is not negative
Ducks have 1 head. Dogs have 1 head.
Ducks have 2 feet. Dogs have 4 feet.
If x = no. of ducks and g = no. of dogs
x + g = 25
2x + 4g = 80
Let's use substitution to solve.
x + g = 25 ⇒ x = 25 - g
replace x with 25 - g in the other equation and solve for g
2x + 4g = 80
2(25 - g) + 4g = 80
50 - 2g + 4g = 80
50 + 2g = 80
2g = 30
g = 15
Now use g = 15 in an earlier equation to find x.
x + g = 25
x + 15 = 25
x = 10
Answer:
$7.57
Step-by-step explanation:
$0.04 x 20 = 0.80
0.80 + 6.77 = 7.57
Answer:
-7 and -4
Step-by-step explanation:
Simce 11 is a prime number, only 11 and 1 give us eleven and do not add up to give 28 so we find factors of 28 that'll add up to give us negative 11 and multiply to give us 28.
factors of 28: 1,2,4,7,14,28 -1,-2,-4,-7,-14,-28
Remember a positive integer has negative factors as well as a negative value times another negative value gives a positive value.
Two number that add to give -11 will be -4 and -7
Answer:
30!
Step-by-step explanation:
250% as much
small bottle holds 12 ounces of water
12*2=24+6=30
