1/5(2x-15) + 3/5x = 4 1/4
x=?
Answers
x*2/5 - 15/5 + x*3/5 = 4 1/4
x*2/5 - 3 + x*3/5 = 4 1/4
x*(2/5+3/5) - 3 = 4 1/4
x*(5/5) - 3 = 4 1/4
1*x - 3 = 4 1/4
x= 4 1/4 + 3
x= 7 1/4
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Answers
4/100=56/x
(4)(14)=56, (100)(14)=1400)
4/100=56/1400
therefore 4% of 1400 days is 56 days
:)
To work out 1% we can divide the number of days by 4, as 4% / 4 = 1%
56 / 4 = 14
1% = 14 days
What we want to find next is what 100% is
From 1%, we multiply by 100 to get 100%, we do the same to the number of days
14 x 100 = 1400 days
Answers
94=y/4-18, svaret blir:94=y/-14, vilket ger:94*(-14)=yy=-1316
94= y/-14 multiply both sides by -14 to get rid of the fraction
94*14=y/-14*14
-1316=y
f(x) = −x2 + 2x − 3
Function ____ has the larger maximum.
(Put 1 or 2 in the blank space)
Numerical Answers Expected!
Answers
written in vertex form, we have,
i.e. vertex = (4, 1) and maximum value at y = 1.
written in vertex form, we have,
i.e. vertex = (1, -2) and maximum value at y = -2.
Therefore,
Final answer:
To determine which function has the larger maximum, we find the vertex of each function's graph and compare the y-values. Function 1 has the larger maximum with a value of 9.25.
Explanation:
In order to determine which function has the larger maximum value, we need to find the vertex of each function's graph. The vertex of a quadratic function in the form f(x) = ax^2 + bx + c can be found using the formula x = -b / (2a). For the first function, f(x) = -x^2 + 8x - 15, a = -1, b = 8, and c = -15. Plugging these values into the formula, we get x = -8 / (2*-1) = 4.5. Substituting this value of x back into the function gives us f(4.5) = -4.5^2 + 8(4.5) - 15 = 9.25.
For the second function, f(x) = -x^2 + 2x - 3, a = -1, b = 2, and c = -3. Using the formula, we find x = -2 / (2*-1) = 1. Substituting this value back into the function gives us f(1) = -1^2 + 2(1) - 3 = -2.
Comparing the maximum values of the two functions, we see that f(x) = -x^2 + 8x - 15 (Function 1) has a larger maximum value of 9.25.
Learn more about Function maximum here:
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Answers
14w > = 138 - 46
14w > = 92
w > = 92/14
w > = 6.57....the least number of weeks would be 7
Answers
Answer:
158000
Step-by-step explanation:
Formula:
divide the mass value by 1000
Answers
so
first we get rid of square root then
make the equation equal to zero becaues if
xy=0 then x or/and y=0
squareroot(y-1)+3=y
isolate the squareroot
subtrac 3 from boht sides
squareroot(y-1)=y-3
square both sides (since they are equal, you should be able to square both sides and still make it true)
(squareroot(y-1))^2=(y-3)^2
(y-1)=(y-3)(y-3)
y-1=y^2-6y+9
subtrac y from both sides
-1=y^2-7y+9
add 1 to both sides
0=y^2-7y+10
find what two number multiply to make 10 and add to get -7
the answer is -2 and -5
0=(y-5)(y-2)
therfore
y-5=0
and/or
y-2=0
therefor
y=5 or/and 2 might work
let's try out 2
square root(2-1)+3=2
square root(1)+3=2
1+3=2
false
so 2 doesn't work
let's try 5
squareroot(5-1)+3=5
squareroot(4)+3=5
2+3=5
5=5
true
y=5