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Kaylis [27]
3 years ago
13

What is the sum? seven-fourths plus negative one-fifth

Mathematics
2 answers:
tangare [24]3 years ago
8 0
Typing it into a calculater using the abc key to make a fraction, it comes out as 1 and 19/20

jok3333 [9.3K]3 years ago
6 0
The answer is 1.55. Did you try finding a common denominator?
You might be interested in
What sequence is modeled by the graph below?
Lady bird [3.3K]

ANSWER

a_n= \frac{1}{2}( {2}^{n - 1} )

EXPLANATION

The corresponding ordered pairs from the graph are:

(2,1) (3,2) (4,4) (5,8)

The y-values are:

1,2,4,8

The first term term is the term before 1,this has to be.

a_1= \frac{1}{2}

The common ratio is

r =  \frac{2}{1}  = 2

The nth term is given by

a_n=a_1 {(r}^{n - 1} )

Let's substitute the values to get,

a_n= \frac{1}{2} \times  {(2}^{n - 1} )

This simplifies to,

a_n= \frac{1}{2} {(2}^{n - 1} )

3 0
3 years ago
What’s is the inverse function of a(m)=0.6735e^0.423m
natta225 [31]

Answer:

a^{-1}(m)=\frac{ln(\frac{m}{0.6735})}{0.423}

Step-by-step explanation:

The function is  a(m)=0.6735e^{0.423m}

Changing functional notation of a(m) to y:

y=0.6735e^{0.423m}

Now, interchanging m and y:

m=0.6735e^{0.423y}\\

Now, solving for y:

e^{0.423y}=\frac{m}{0.6735}\\ln[e^{0.423y}]=ln[\frac{m}{0.6735}]\\0.423y=ln(\frac{m}{0.6735})\\y=\frac{ln(\frac{m}{0.6735})}{0.423}

Thus, the inverse function is:

a^{-1}(m)=\frac{ln(\frac{m}{0.6735})}{0.423}

5 0
3 years ago
The bacteria took 1 hour and 40 minutes to fill the initial bottle. Explain how it only took 10 minutes to fill 3 additional emp
geniusboy [140]
Bacteria growth occurs exponentially; bacteria divides into 2 every t minutes (similar to the penny doubling every day story). If one gets filled, and the contents divides once, there will be enough for 2 bottles; when these two are ready to divide, there will be enough for 4. This growth process begins very slowly - 1, 2, 4, 8, 16, 32; but it soon speeds up greatly, 64, 128, 256, 512, 1024, 2048.
6 0
3 years ago
Read 2 more answers
Simplify x + 2 + x + 2 + x + 2 + x + 2 + x + 2 + x + 2 + x + 2 + x + 2 + x + 2. Write in simplified form, giving reasons. Someon
Oksanka [162]

easiest thing to do is combine like terms. There are 9 2's, which means 9(2) which equals 18. Now for the X's. There are 9 X's meaning (9)x which is 9x. This all makes up

18+9x

hope this helps

6 0
3 years ago
Read 2 more answers
10 divided by 2-(16 divided by 4) +14
ankoles [38]

Answer:

15

Step-by-step explanation:

okay so you gotta use pemdas (p = parentheses, e = exponents, m = multiplication, d = division, a = addition, s = subtraction), but for the multiplication/division and addition/subtraction parts, if  division or subtraction happens first then you must do it first rather than doing multiplication or addition first

10 / 2 -(16/4) + 14

10 / 2 -(4) + 14

5 - 4 + 14

1 + 14

15

7 0
3 years ago
Read 2 more answers
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