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Neko [114]
3 years ago
14

Raise each side of the equation as the power of the base of the log, 0.98 = log x

Mathematics
1 answer:
almond37 [142]3 years ago
8 0

Answer:

see explanation

Step-by-step explanation:

Given

log_{10} x = 0.98, then

x = 10^{0.98}

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A man wants to test for diabetes. His family history shows that the probability of getting diabetes is 0.6. He decides to do a h
lesantik [10]
So,

The probability of the man having diabetes is 0.6 or 60%.  Because we are figuring the probability BEFORE the test is taken that he has the disease, we can disregard the test and its accuracy rate.  That rate is 60%, the probability of him having diabetes.

The correct option is D.
8 0
3 years ago
What is the 9th term of the geometric sequence 4, −20, 100, …?
sveta [45]
First, we are going to find the common ratio of our geometric sequence using the formula: r= \frac{a_{n}}{a_{n-1}}. For our sequence, we can infer that a_{n}=-20 and a_{n-1}=4. So lets replace those values in our formula:
r= \frac{-20}{4}
r=-5

Now that we have the common ratio, lets find the  explicit formula of our sequence. To do that we are going to use the formula: a_{n}=a_{1}*r^{n-1}. We know that a_{1}=4; we also know for our previous calculation that r=-5. So lets replace those values in our formula:
a_{n}=4*(-5)^{n-1}

Finally, to find the 9th therm in our sequence, we just need to replace n with 9 in our explicit formula:
a_{9}=4*(-5)^{9-1}
a_{9}=4*(-5)^{8}
a_{9}=1562500

We can conclude that the 9th term in our geometric sequence is <span>1,562,500</span>
4 0
3 years ago
What is the volume of this cuboid?<br>Please help me!!!?!
Snowcat [4.5K]

The formula of a volume of a cuboid:

V=lwh

l - length

w - width

h - height

We have:

l = (x + 4) cm

w = (x + 1) cm

h = 3 cm

Substitute:

V=(x+4)(x+1)(3)      <em>use distributive property</em>

V=(x+4)(3x+3)

V=(x)(3x)+(x)(3)+(4)(3x)+(4)(3)

V=3x^2+3x+12x+12      <em>combine like terms</em>

\boxed{V=3x^2+15x+12}

6 0
3 years ago
What is f(–3) for the function f(a) = –2a2 – 5a + 4?
shepuryov [24]
F(-3) = -2(-3)2 - 5(-3) +4
            - 6 x 2 -15 + 4
                - 12 -15 +4
                    - 27 + 4
                           -23

I believe this is how to solve the equation. I could be wrong.

4 0
3 years ago
Read 2 more answers
please help me with a math question. Do not report please. I need a good grade for chirstmas. 50 points.
Sliva [168]

Answer: I would think

6-0

12-1

30-2

Step-by-step explanation:

8 0
3 years ago
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