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evablogger [386]
3 years ago
9

Helpppppppp pleaseee

Mathematics
1 answer:
In-s [12.5K]3 years ago
3 0

Answer:

Dezias' pensil is 5.11-1.09=4.02 inches long

Paul's pencil is 4.02+2.05=6.07 inches long

Miguel's pencil is 5.11+1.75=6.86 inches long

Combined are 5.11+4.02+6.07+6.86=22.06

The fraction is 22.06/12=1.8383333...

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Suppose a population of honey bees in Ephraim, UT has an initial population of 2300 and 12 years later the population reaches 13
Rama09 [41]

Answer:

common ratio: 1.155

rate of growth: 15.5 %

Step-by-step explanation:

The model for exponential growth of population P looks like: P(t)=P_i(1+r)^t

where P(t) is the population at time "t",

P_i is the initial (starting) population

(1+r) is the common ratio,

and r is the rate of growth

Therefore, in our case we can replace specific values in this expression (including population after 12 years, and  initial population), and solve for the unknown common ratio and its related rate of growth:

P(t)=P_i(1+r)^t\\13000=2300*(1+r)^{12}\\\frac{13000}{2300} = (1+r)^12\\\frac{130}{23} = (1+r)^{12}\\1+r=\sqrt[12]{\frac{130}{23} } =1.155273\\

This (1+r) is the common ratio, that we are asked to round to the nearest thousandth, so we use: 1.155

We are also asked to find the rate of increase (r), and to express it in percent form. Therefore we use the last equation shown above to solve for "r" and express tin percent form:

1+r=1.155273\\r=1.155273-1=0.155273

So, this number in percent form (and rounded to the nearest tenth as requested) is: 15.5 %

6 0
3 years ago
Please help! Correct answer only, please! I need to finish this assignment this week. Determine the value of the following: A. B
11Alexandr11 [23.1K]

Answer:

C

Step-by-step explanation:

Given

\left[\begin{array}{ccc}-2&3\\2&4\\\end{array}\right] + \left[\begin{array}{ccc}3&1\\-1&2\\\end{array}\right]

Add corresponding elements to obtain the sum, that is

= \left[\begin{array}{ccc}-2+3&3+1\\2-1&4+2\\\end{array}\right]

= \left[\begin{array}{ccc}1&4\\1&6\\\end{array}\right] → C

4 0
3 years ago
I also really need help with this question! <br> g(x)=2x - 3<br> h(x)=2x + 4<br> Find (g/h)(x)
Ray Of Light [21]
(2x-3)/(2(x+2))
x cannot equal -2
3 0
3 years ago
What is the least angle measure by which this figure can be rotated so that it maps onto itself?
Vinil7 [7]
T think its 90 hope this helpes

7 0
3 years ago
Read 2 more answers
What is the value of x ?? If u cant see numbers let me know
Hoochie [10]

Answer:

X = 58°

Step-by-step explanation:

105° = (2x -11)°

105° + 11° = 2x

116°= 2x

Divide both sides by 2

X = 58°.

4 0
2 years ago
Read 2 more answers
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