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mihalych1998 [28]

3 years ago

12

Please answer ASAP! Thank you in advance.

2 answers:

SashulF [63]3 years ago

7 0

Answer:

I believe the answer is 5

Step-by-step explanation

12 - 7 = 5

victus00 [196]3 years ago

6 0

Answer: 128ft^2

Step-by-step explanation: the small rectangle at the top of the big rectangle sides are 4ft and 5 ft because 12-7=5 and 13-9=4. This means that the area for the small triangle is 20ft. The side lengths for the big rectangle is 9ft and 12ft which means that the area is 108ft. Then you add 108ft with 20ft which gives you 128ft. Dont forget to add the squared at the end of 128ft.

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3 Prove that<br>cos130°+cos 110+ cos10=0

Evgesh-ka [11]

We know, cos A + cos B = 2cos(C+D)/2 × cos(C - D)/2

So,

cos 130 + cos 110 + cos 10

cos 130 + 2cos (110+10)/2 × cos( 110-10)/2

cos 130 + 2cos 60 × cos 50

cos ( 180 - 50 ) + 2cos60 cos 50

We know, cos ( 180 - A ) = -cos A

2cos 60 cos 50 - cos 50

Also, cos 60 = 0.5

2×0.5 cos 50 - cos50

cos 50 - cos 50

0 = RHS.

Hence proved

5 0

3 years ago

Mrs. Gomes found that 40% of students at her high school take chemistry. She randomly surveys 12 students. What is the probabili

zlopas [31]

Answer:

The correct answer to the following question will be "0.438".

Step-by-step explanation:

Just because Mrs. Gomes finds around 40% of students in herself high school are studying chemistry.

Although each student becomes independent of one another, we may conclude:

"x" number of the students taking chemistry seems to be binomial to p = constant probability = 0.40

Given:

Number of surveys

= 12

Exactly 4 students have taken chemistry:

$=P(X\leq4)$

$=P(x=0)+P(x=1)+P(x=2)+P(x=3)+P(x=4)$

$=\Sigma_{0}^{4} C_{r}(0.4)^r(0.6)^{12-r}$

On substituting the above equation, we get the probability of approximately "0.438".

So that the above would be the appropriate answer.

5 0

4 years ago

Please help i don’t really understand this

Andrew [12]

Answer:

g(x) = 1/2x^2

Step-by-step explanation:

6 0

4 years ago

Read 2 more answers

This assignment is due in 15 minutes and this doesn't make sense at all. Please help!

Colt1911 [192]

Last one? I’m not sure but that’s what I would put

7 0

3 years ago

Read 2 more answers

for the inequality Y is less than or equal to 9 Jasmine says 9 and 0 are both solutions is she correct

Natali5045456 [20]

Yes because the solution can either be equal to 9 or less than 9 and 9=9 and 0<9 so they can both be solutions

7 0

3 years ago