Step-by-step explanation:
6x+35+8x=15(x+4)-25
6x+35+8x=15x+60-25
[6+8-15]x=[60-25-35]
-x =0
x=0
9514 1404 393
Answer:
- no solutions
- 1, 14=0
- 2, 7=0
Step-by-step explanation:
The first blank is correctly filled with "no solutions."
The two requested values of x can be <em>any numbers of your choice</em> (except 0). Above, we have chosen x=1, which makes the equation 14/1 = 0, or 14 = 0 when simplified.
And we have chosen x=2, which makes the equation 14/2 = 0, or 7 = 0 when simplified.
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In short, there are <em>an infinite number of correct answers</em> to this question.
Answer:
a. y = -3
b. x = -3
c. z = - 1
d. y = -7
Step-by-step explanation:
a. 5y - 3 = - 18
5y = -18 +3
5y = -15
y = -15/5
y = - 3
b. -3x - 9 = 0
-3x = 9
x = 9/-3
x = -3
c. 4 + 3(z-8)= -23
4 + 3z-24 = -23
3z - 20 = -23
3z = -23 + 20
3z = -3
z = -3/3
z = - 1
d. 1 - 2(y-4) = 5
1 - 2y + 8 = 5
9 - 2y = 5
-2y = 14
y = 14/-2
y = -7
Answer:
3 is the missing value
Step-by-step explanation:
Given

Required
Complete the blank
The model is not given; but the question can still be solved.
We have:

Add 8 to 4

Add 24 to 12

Divide both sides by 12

Rewrite as:

Hence, the blank will be completed with 3
Answer:
d. 52.5 million cases
Step-by-step explanation:
from the data output in the question, we have the regression equation to be
log y = -151.281 + 0.076577x
y is the number of hiv cases which is in millions
x is the year of the hiv case
x = 1998
we put the value of x in the regression equation
log y = -151.281 + 0.076577(1998)
log y = -151.281 + 153.000846
log y = 1.719846
since the result is in log form,

y = 52.5 million cases