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OleMash [197]
3 years ago
6

Pleasee i need help pleaseeee help nowww​

Mathematics
1 answer:
hjlf3 years ago
3 0

Answer:

t > 2.5

Step-by-step explanation:

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Help pls pls pls<br><br> 4 x 10<br> plssss plz plz plzz so hard
mrs_skeptik [129]

Answer:

40

Step-by-step explanation:

4 x 10= 40

PlZ add brainliest.

8 0
3 years ago
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Sin(60-theta)sin(60+theta)​
ehidna [41]

Step-by-step explanation:

\sin(60 -  \theta)  \sin(60 +  \theta)  \\  =  \{ \sin(60)  \cos( \theta)  -  \sin( \theta)   \cos(60)  \} \{ \sin(60)  \cos( \theta)  +  \cos(60)  \sin( \theta)  \} \\  =  \{ \frac{ \sqrt{3} }{2}  \cos( \theta)  -  \frac{1}{2}  \sin( \theta)  \} \{ \frac{ \sqrt{3} }{2}  \cos( \theta)  +  \frac{1}{2}  \sin( \theta)  \} \\  \\

from difference of two squares:

{ \boxed{(a - b)(a + b) = ( {a}^{2} -  {b}^{2} ) }}

therefore:

=  \{ {( \frac{ \sqrt{3} }{2}) }^{2}  { \cos }^{2}  \theta \} -  \{ {( \frac{ \sqrt{3} }{2} )}^{2}  { \sin }^{2}  \theta \} \\  \\  =  \frac{3}{4}  { \cos }^{2}  \theta -  \frac{3}{4}  { \sin}^{2}  \theta

factorise out ¾ :

=  \frac{3}{4} ( { \cos }^{2}  \theta  -  { \sin}^{2}   \theta) \\  \\  = { \boxed{ \frac{3}{4}  \cos(2 \theta) }}

3 0
3 years ago
Read 2 more answers
How do u get this?? I know the answer but then I don't know why they shuld divide by 2 I will mark the person who explains wit p
Greeley [361]

Answer:

10.89

Step-by-step explanation:

Circle:

C = TTD

C = TT(6.6)

C = 20.73451151

C = 20.73

Triangle:

A = bh/2

A = 6.6(3.3)/2        6.6/2=3.3

A = 21.78/2

A = 10.89

Shaded Region = 10.89

5 0
3 years ago
So if i can buy 4 basketballs for $44 at the same rate how much would 8 basket balls be?
ch4aika [34]
$88 for 8 basketballs bc 1 ball is 11$ and 11(8)=88
7 0
2 years ago
Read 2 more answers
The sum of the measures of the angles of any triangle is 180°. In triangle ABC, angles A and B have the same measure, while the
lesya [120]

This is the solution

Click on the photo to view full solution

4 0
3 years ago
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