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Ulleksa [173]
3 years ago
10

Which expression is equivalent?

Mathematics
1 answer:
Irina18 [472]3 years ago
7 0

Answer:

Again! Option D is the answer!

Please mark my answer as the brainliest since I have you the answer so quickly!

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Sin15°+tan65°=cot25°+cos75°​
kifflom [539]

Step-by-step explanation:

L.H.S =

sin15°+tan65°

sin(90°-75°)+tan(90°-25°)

cos75°+cot25°

or; cot25°+ cos75°. R.H.S

6 0
2 years ago
Graph A line goes through the point (6,–2) and has a slope of –3. What is the value of a if the point (a,7) lies on the line?
3241004551 [841]

Answer:

The value of a is 3

Step-by-step explanation:

First you have to make an equation based on the point and slope that you were given. The formula for this is y-(y cordinate of point)=slope(x-x cordinate of slope)

y--2=-3(x-6), which simplifies to y+2=-3(x-6)

In (a,7), 7 is the y coordinate. We have to plug 7 in for the y in our equation.

7+2=-3(x-6),

Combine like terms on the left side to get to 9=-3(x-6)

Multiply out on the left to get 9=-3x+18

Subtract 18 from the left side to get -9=-3x

Divide both sides by negative 3 to get 3=x (remember x is a)

7 0
3 years ago
A bakery has fixed costs for retail space, electricity, and appliances of $15,000. The variable cost of baking a cookie is 0.25
den301095 [7]

Answer:

Step-by-step explanation:

That $15,000 sounds like an annual amount, not a monthly or weekly amount.  In the absence of clarification of this, I will include that $15,000 in the following calculations:

Let the # of cookies baked be z and the number of cakes be k.

Then:

Total cost = $15,000 + ($0.25/cookie)z + ($3.53/cake)k

In this specific case, where the number of cookies is z and the number of cakes is k, the formula  

Total cost = $15,000 + ($0.25/cookie)z + ($3.53/cake)k

becomes ...

Total cost (z, k)  = $15,000 + ($0.25/cookie)(400) + ($3.53/cake)(200),

and this works out to:

TC (z, k) = $15,000 + $100 + $706 = $15,000 + $806 = $15,806.

No cakes or cookies could be good enough to warrant production costs that high!

Double-check to ensure that you have copied this problem down completely and accurately.

6 0
3 years ago
Read 2 more answers
Help, please<br> Simplify. √27x^2y^2
skelet666 [1.2K]

Answer:

3✓3xy

✓3^2×3x^2y^2

✓3xy ✓3

5 0
3 years ago
Read 2 more answers
Find the value of x.
SVETLANKA909090 [29]

Answer: 111

Step-by-step explanation: its half of the circle

8 0
2 years ago
Read 2 more answers
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