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2 years ago

WHAT IS A+Z DIVIDED BY 60 WHAT IS THE ANSWER

Mathematics

1 answer:

olya-2409 [2.1K]2 years ago

5 0

a+z÷60

this is its most simplifyed form BUT if you know a and z than you can dove further

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The work of a student to solve a set of equations is shown:

seraphim [82]

Answer:

In step 3

4m = 4 + 4n

-4m = -32 -8n. (step 2)

If you add -4m, 4m you end up with

-4m+4m=-32 -8n + 4n +4

In step 3. the 4 was not added

continuing to solve 4n=-28, n=-7

5 0

3 years ago

The estimated number of organisms in a population after t days is shown in the table below. t days estimated number of organisms

Lelu [443]

Answer:

The function $n=591.68(1.2056)^t$ best models the situation.

Step-by-step explanation:

The values in the table do not lie over a straight line because their slope is not a constant; for example

$m_1=\frac{1250=860}{4-2} =195$

$m_2=\frac{1850-1250}{2}=275$

we see here that $m_1\neq m_2$ therefore a linear equation cannot represent this situation.

The values in the table are increasing exponentially , therefore the equation modeling the situation will be of the form:

$n=ab^t$

we take two points from the table for evaluating $a$ and $b$ namely points $(2,860)$ and $(4,1250)$

thus we have

(1). $860=ab^2$

(2). $1250=ab^4$

From equation (1) we solve for $a:$

$a=\frac{860}{b^2}$

and put this value into equation (2)

$1250 =\frac{860}{b^2}b^4$

$b^2=\frac{1250}{860}$

$\boxed{b=1.2056}$

with this value $b$ , we solve for $a$ in equation (1):

$860=a(1.2056)^2$

$a=\frac{860}{(1.2056)^2}$

$\boxed{a=591.68}$

Thus we have the equation

$\boxed{n=591.68(1.2056)^t}$

8 0

3 years ago

Read 2 more answers

If a sprinkler waters 1 over 15 of a lawn in 1 over 3 hour, how much time will it take to water the entire lawn?

Feliz [49]

Now, a whole, will be 15/15 or 1 whole.

now, the sprinkler does 1/15 of the lawn in 1/3 of an hour, how long will it be to do the whole 15/15?

$\bf \begin{array}{ccll}
lawn&hours\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
\frac{1}{15}&\frac{1}{3}\\\\
\frac{15}{15}&h
\end{array}\implies \cfrac{\quad \frac{1}{15}\quad }{\frac{15}{15}}=\cfrac{\quad \frac{1}{3}\quad }{h}\implies \cfrac{1}{15}\cdot \cfrac{15}{15}=\cfrac{\quad \frac{1}{3}\quad }{\frac{h}{1}}
\\\\\\
\cfrac{1}{15}=\cfrac{1}{3}\cdot \cfrac{1}{h}\implies \cfrac{1}{15}=\cfrac{1}{3h}\implies 3h=15\implies h=\cfrac{15}{3}\implies h=5$

6 0

3 years ago

Read 2 more answers

I cannot figure out how to do these two questions. If someone could please show me step by step that would be awesome. Thanks in

Korvikt [17]

So angles in a triangle add up to 180
Angle B is 50 and angle E is 90

90+50=140
180-140=40°(angle A)

Now the other triangle
Angle C is 62 and angle E is 90

90+62=152
180-152=28

40-28=12
hope this helped but I can't help with the second one

5 0

3 years ago

If a triangle has sides of 9 and 14, then the remaining side must be between and , with the smaller number listed first.

pickupchik [31]

Answer:

I think the answer could be 11.5

Step-by-step explanation:

It's in the middle of both numbers

a=9

b=11.5

c=14

5 0

3 years ago

Read 2 more answers