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UNO [17]
2 years ago
13

SOMEONE PLS HELP WHAT DO I DO HERE

Mathematics
1 answer:
pav-90 [236]2 years ago
6 0

Answer:

see below

Step-by-step explanation:

4 ^(3x-1)=3

Take the natural log of each side

ln(4 ^(3x-1))= ln (3)

We know that ln ( a^b) = b ln a

(3x-1) ln 4 = ln 3

Divide each side by ln 4

3x-1 = ln(3)/ (ln4)

Add 1 to each side

3x = ln(3)/ ln (4) +1

Divide by 3

x =1/3 [( ln 3)/ ln (4)] + 1/3

x = .792461

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Write an equation for the line whose slope is 7/2 and which contains the point (-12,-9)
blagie [28]

Slope-intercept form:

y = mx + b    "m" is the slope, "b" is the y-intercept (the y value when x = 0)


Since you know m = 7/2, plug it into the equation

y = 7/2x + b  

To find "b", plug in (-12,-9) into the equation

y = 7/2x + b

-9 = 7/2(-12) + b

-9 = -84/2 + b

-9 = -42 + b     Add 42 on both sides

33 = b


y=\frac{7}{2}x+33




(if you're not suppose to use slope-intercept form)

Point-slope form:

y - y₁ = m(x - x₁)


m = 7/2

(x₁ , y₁) = (-12,-9)

Plug this into the equation

y - y₁ = m(x - x₁)

y - (-9) = 7/2(x - (-12))

y+9=\frac{7}{2}(x+12)

5 0
3 years ago
A home pregnancy test is not always accurate. suppose the probability that the test indicates that a woman is pregnant when she
Gnom [1K]
Set Events:
T=tests positive~T=tests negativeP=subject is pregnant~P=subject is not pregnant
We are givenP(T n ~P)=0.02P(~T n P)=0.03P(P)=0.7
recall by definition of conditional probabilityP(A|B)=P(A n B)/P(B)

Need to find P(P|~T)
First step: make a contingency diagram of probabilities (intersection, n)
          P       ~P       sum 
T       0.67   0.02     0.69=P(T) 
~T     0.03   0.28     0.31=P(~T) 
sum   0.70  0.30     1.00
      =P(P)  =P(~P)

therefore
P(P|~T)=P(P n ~T)/P(~T)=0.03/0.31   [ both read off the contingency table ]
=0.0968

4 0
3 years ago
How do I graph y=1/6x - 1
kupik [55]

Answer:

-1 is on the Y axis (vertical) Slope is 1/6

Step-by-step explanation:

-1 is on the Y axis. Go up 1 a right over 6. <- that is the slope

3 0
3 years ago
If (x-10) is a factor of the polynomial P(x), which of the following do we know to be true?
Anon25 [30]

Answer:

Option 3, p(0) = -10

Option 4, p(10) = 0

Step-by-step explanation:

<u>Step 1:  Check</u>

x - 10 + 10 = 0 + 10

<em>x = 10</em>

f(0) = 0 - 10 = -10

x = -10

<em>p(10) = 0</em>

Answer:  Option 3, p(0) = -10, Option 4, p(10) = 0

4 0
3 years ago
Read 2 more answers
What is the difference between 1/2 and 1 whole?
Travka [436]
1/2 is half of a whole

whole= 1/1. 2/2, 3/3, 4/4 and so on

1/2 are numbers that can be simplify to halves= 1/2, 2/4, 3/6, 4/8, 5/10 and 1/2 are half of the denominator
4 0
3 years ago
Read 2 more answers
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