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3 years ago

Geometry help please ;(

Mathematics

2 answers:

Crazy boy [7]3 years ago

8 0

The answer would be a reason being sinangle= opposite/hypotenuse
if u shift ur phone and observe it is 12/13

stealth61 [152]3 years ago

4 0

You know this is a right angled triangle. so you can use SOH CAH TOA.
taking <A as the angle you want to find. you can use any of the above with H,O or A .
using sine : ur opposite is 12 ( the side opposite the <A) , your H is your hypotenuse(longest side) aka 13.
Thus
sine<A = 12/13
OPTION A

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Eliminate the parameter:<br> x = 2cost-1 y = 3sint+ 4

adell [148]

Answer:

Hi,

Step-by-step explanation:

$\left\{\begin {array} {ccc}x&=&2*cos(t)-1\\y&=&3*sin(t)+4\\\end{array}\right.\\\\\\\left\{\begin {array} {ccc}\dfrac{x+1}{2}&=&cos(t\\\dfrac{y-4}{3}&=&sin(t)\\\end{array}\right.\\\\Squaring\\\\\boxed{(\dfrac{x+1}{2})^2+(\dfrac{y-4}{3})^2&=1}\\$

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2 years ago

2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5.

Elza [17]

First, simplify the expression $2r^2 + 3s^3 - r^2 + 4t^2 - r^2.$ Here you have three terms with $r^2,$ group them in the following way:

$2r^2 + 3s^3 - r^2 + 4t^2 - r^2=2r^2-r^2-r^2+3s^3+4t^2=(2r^2-r^2-r^2)+3s^3+4t^2=$

$=r^2(2-1-1)+3s^3+4t^2=3s^3+4t^2.$

Then substitute s=-3 and t=5:

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Answer: 19.

3 0

3 years ago

Read 2 more answers

THIS IS FOR 60PTS A taxi company charges $3 per ride plus $1.50 for each mile traveled. Andrea wants to spend no more than $24 o

Nataly_w [17]

Answer:

$21/$1.50 per mile =14 miles. The units match $/($/mile), so division was the proper operation.

Step-by-step explanation:

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3 years ago

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15 and 25 least common multiple

dsp73

If you want to add or subtract fractions :

1- make sure that the denominators of the fractions are equal. if they are not, then multiply each of them by a number so that they will be equal.

2- add or subtract the numerators.(if you already had multiplied the denominator of a fraction by a number, then you should multiply the numerator by the same number and do the adding or subtracting)

3- simplify it's possible

here are the answers :

$\frac{3}{7} + \frac{6}{11} = \frac{33 + 42}{77} = \frac{75}{77}$

$\frac{1}{3} + \frac{3}{4} = \frac{4 + 9}{12} = \frac{13}{12} = 1 \frac{1}{12}$

$\frac{4}{5} + \frac{3}{7} = \frac{28 + 15}{35} = \frac{43}{35} = 1 \frac{8}{35}$

$\frac{7}{12} - \frac{1}{8} = \frac{14 - 3}{24} = \frac{11}{24}$

$\frac{9}{10} - \frac{2}{3} = \frac{27 - 20}{30} = \frac{7}{30}$

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4 years ago

Question is on picture

BabaBlast [244]

Answer:

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3 years ago