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4 years ago

I NEED THIS ASAP PLEASE SAVE ME!!!

Mathematics

1 answer:

prohojiy [21]4 years ago

5 0

Answer:

First page, first question the answer b, second question answer is a.

Step-by-step explanation:

When a function is positive, it moves towards the left, when it is negative it moves towards the right.

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Right triangles abc and dbc with right angle c are given below. If cos(a)=15,ab=12 and cd=2, find the length of bd.

dmitriy555 [2]

see the attached figure to better understand the problem

we have that

$cos(A)=\frac{1}{5} \\ AB=12\ units\\ CD=2\ units$

Step 1

Find the value of AC

we know that

in the right triangle ABC

$cos (A)=(AC/AB)\\AC=AB*cos(A)$

substitute the values in the formula

$AC=12*(1/5)\\ AC=2.4\ units$

Step 2

Find the value of BC

we know that

in the right triangle ABC

Applying the Pythagorean Theorem

$AB^{2} =AC^{2}+BC^{2}\\ BC^{2}=AB^{2} -AC^{2}$

substitute the values

$BC^{2}=12^{2} -2.4^{2}\\BC^{2}= 138.24\\ BC=11.76\ units$

Step 3

Find the value of BD

we know that

in the right triangle BCD

Applying the Pythagorean Theorem

$BD^{2} =DC^{2}+BC^{2}$

substitute the values

$BD^{2} =2^{2}+11.76^{2}$

$BD=11.93\ units$

therefore

the answer is

the length of BD is 11.93 units

8 0

3 years ago

Read 2 more answers

Assume that the custodian of a $705 petty cash fund has $147. 50 in coins and currency plus $535. 50 in receipts at the end of t

zloy xaker [14]

Answer:

$528
If not then it might be $385

7 0

1 year ago

PLZ HELP. plz don't guess or send me a virus this is like my 5th time asking but keep geting viruses or ppl guessing

mezya [45]

Answer:

5p< or equal to 12

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

In the graph y = x + 3

masya89 [10]

Answer:

Its equal 3

Step-by-step explanation:

because x+3 = 3 because x is 0 so that means that 0+3=3 so y is 3 trust me

6 0

3 years ago

Read 2 more answers

1/2 a =11 what does a mean????

yan [13]

‘a’ is a variable
so this means something multiplied by 1/2 = 11
to solve we will divide both sides by 1/2 to isolate ‘a’
so a= 22

you can verify by plugging 22 into a

so

(1/2)(22)=11
which is true

6 0

3 years ago