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3 years ago

IM CONFUSED CAN SOMEONE HELP

Mathematics

1 answer:

Evgesh-ka [11]3 years ago

8 0

The directions are fairly straightforward. They are asking you to plot the two curves on a graph and find the coordinates of the point of intersection.

After 7 years, the number of birds of each species during that year will be 140.

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Which of the following applies the law of cosines correctly and could be solved to find m∠E? ANSWERS: A) cos E = 312 + 392 – 2(3

defon

This question is incomplete because the options were not properly written.

Complete Question

Which of the following applies the law of cosines correctly and could be solved to find m∠E? ANSWERS:

A) cos E = 31²+ 39² – 2(31)(39)

C) 56² = 39² – 2(39) ⋅ cos E

D) 56² = 31² + 39² – 2(31)(39) ⋅ cos E

Answer:

D) 56² = 31² + 39² – 2(31)(39) ⋅ cos E

Step-by-step explanation:

From the above diagram, we see are told to apply the law of cosines to solve for m∠E i.e Angle E

The formula for the Law of Cosines is given as:

c² = a² + b² − 2ab cos(C)

Because we have sides d , e and f and we are the look for m∠E the law of cosines would be:

e² = d² + f² - 2df cos (E)

e = 56

d = 39

f = 31

56² = 39² + 31² - (2 × 39 × 31) × cos E

Therefore, from the above calculation and step by step calculation, the option that applies the law of cosines correctly and could be solved to find m∠E

Is option D: 56² = 31² + 39² – 2(31)(39) ⋅ cos E

8 0

3 years ago

The table and the graph below each show a different relationship between the same two variables, x and y:

Angelina_Jolie [31]

Answer:

The answer is A.

Step-by-step explanation:

thats what i think

7 0

3 years ago

The admission fee is $1.50 for children and $4.00 for adults. If 2700 people enter and $7800 is collected how many children and

mash [69]

Number of children attended is 1200 and number of adults attended is 1500

<h3><u>Solution:</u></h3>

Given that,

Admission fee for each children = $ 1.50

Admission fee for each adult = $ 4.00

Let "c" be the number of children attended

Let "a" be the number of adults attended

Given that 2700 people enter and $7800 is collected

Number of children attended + number of adults attended = 2700

c + a = 2700 -------- eqn 1

Also given that $7800 is collected

Number of children attended x Admission fee for each children + number of adults attended x Admission fee for each adult = 7800

$c \times 1.50 + a \times 4 = 7800$

1.5c + 4a = 7800 -------- eqn 2

Let us solve eqn 1 and eqn 2 to find values of "a" and "c"

From eqn1,

a = 2700 - c ----- eqn 3

Substitute eqn 3 in eqn 2

1.5c + 4(2700 - c) = 7800

1.5c + 10800 - 4c = 7800

-2.5c = -3000

c = 1200

Therefore from eqn 3,

a = 2700 - 1200

a = 1500

Therefore number of children attended = c = 1200

number of adults attended = a = 1500

3 0

3 years ago

Imagine you live in a big country. There are no forests in your country, but there are lots of farms and lots of food. The count

Fed [463]

Trading your food for the neighboring country's wood. You can control how much wood they cut down, slowing down the change of climate in your country, and can help them with their food shortage at the same time.

5 0

2 years ago

Read 2 more answers

How do you convert 78,999milligrams to grams ?

lorasvet [3.4K]

There are 1,000 milligrams in a gram, so to convert milligrams to grams, you simply divide by 1,000.

<span><u>78,999
</u></span> 1000
78.999

Therefore, 78,999 milligrams is 78.999 grams.

6 0

3 years ago