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SpyIntel [72]
3 years ago
5

Which exponential function is represented by the graph a f(x)=2(1/2)^x. B f(x)=1/2(2)^x

Mathematics
1 answer:
algol [13]3 years ago
7 0
Oh you gonna fail baby
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What is the equation in slope-intercept form for the line that passes
igomit [66]

Answer:

y = 6x + 9

Step-by-step explanation:

Δy =-3-3 = -6

Δx =-2-(-1) = -1

Slope = Δy/Δx = 6

Point-slope equation for line of slope 6 that passes through (-1,3):

y-3 = 6(x+1)

Rearrange to solve for y:

y = 6x + 9

5 0
3 years ago
Arsenic is a compound that occurs naturally in very low concentrations. Arsenic blood concentrations in healthy adults are Norma
slava [35]

Answer:

0.7325 to 5.6675 ug/dl

Step-by-step explanation:

The middle 90% will be 45% above the mean and 45% below the mean.  This means

0.5-0.45 = 0.05 and

0.5+0.45 = 0.95

We use a z table.  Look in the cells; find the values as close to 0.05 and 0.95 as we can get.

For 0.05, we have 0.0505 and 0.0495; since these are equidistant from 0.05, we use the value between them.  0.0505 is z=-1.64 and 0.0495 is z=1.65; this gives us z=-1.645.

For 0.95, we have 0.9495 and 0.9505; since these are equidistant from 0.95, we use the value between them.  0.9495 is z = 1.64 and 0.9505 is z=1.65; this gives us z = 1.645.

Now we use our z score formula,

z=\frac{X-\mu}{\sigma}

Our two z scores are 1.645 and -1.645; our mean, μ, is 3.2; and our standard deviation, σ, is 1.5:

1.645=\frac{X-3.2}{1.5}

Multiply both sides by 1.5:

1.5(1.645)=\frac{X-3.2}{1.5}\times 1.5\\\\2.4675 = X-3.2

Add 3.2 to each side:

2.4675+3.2 = X-3.2+3.2

5.6675 = X

-1.645=\frac{X-3.2}{1.5}

Multiply both sides by 1.5:

1.5(-1.645)=\frac{X-3.2}{1.5}\times 1.5\\\\-2.4675=X-3.2

Add 3.2 to each side:

-2.4675+3.2 = X-3.2+3.2

0.7325 = X

Our range is from 0.7325 to 5.6675.

7 0
3 years ago
Can anyone please help me on at least one of them or all that will be lovely thank you
galben [10]

Answer:

Step-by-step explanation:

1. 6*6 + 6*12

= 36 + 72

= 108.

2. 3*5 + 3*5 + 3*14

= 15 + 15 + 42.

= 72.

3.  10*4 + 1/2 * 4*4

= 40 + 8

= 48.

4. 12*6 + 1/2 * 12 * 3

= 72 + 18 = 90.

6 0
3 years ago
1/10+50/100 need help ​
monitta

Answer:

3/5

Step-by-step explanation:

For this problem, you first have to make the denominators the same. You can use 100 in this example. You will have to multiply 1/10*10 which gives you 10/100. Then you add the numerator and denominator which is 60/100. Then you simplify to give you the answer of 3/5. I hope this helps you!

5 0
3 years ago
Brandon’s car used 3/4 of a gallon to travel 13 1/2 miles. How many miles can the car go?
Amiraneli [1.4K]

Answer:

12

Step-by-step explanation:

7 0
3 years ago
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