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2 years ago

Can someone help me please

Mathematics

1 answer:

Kamila [148]2 years ago

5 0

Which question do you need help on?

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Suppose an amount increases by 100% percent, then decreases by 100% percent. Find the final amount. Would the situation change i

Oksi-84 [34.3K]

No it will not change it will be 250% then it will decrease 100% down again back to 150%

6 0

2 years ago

WILL GIVE BRAINLIEST TO CORRECT ANSWER

Aliun [14]

Answer:

Total number of outcomes = 23

number of biology and art students = 2

number of biology students = 2

Since it is given that all the students study art,

number of possible outcomes = 2

probability = number of favorable outcomes/number of total outcomes.

= 2/23

Therefore probability that the selected student studies both art and biology is 2/23.

7 0

2 years ago

This is so confusing all of it makes no sense

Tom [10]

Answer:

D). $4\sqrt{2}$

Step-by-step explanation:

STEP 1a: Find the last angle of the triangle. ( which is angle A)

$A+90+45=180$

STEP 1b: Solve the equation for A by adding 90 and 45.

$A+135=180$

STEP 1c: Then Move all terms not containing A to the right side of the equation by subtracting 135 from both sides of the equation

$A=180-135$

STEP 1d: Subtract 135 from 180.

$A=45$

STEP 2a: Find side b next.

STEP 2b: The cosine of an angle is equal to the ratio of the adjacent side to the hypotenuse.

$cos(A)=\frac{adj}{hyp}$

STEP 2c: Substitute the name of each side into the definition of the cosine function.

$cos(A)=\frac{b}{c}$

STEP 2d: Set up the equation to solve for the adjacent side, in this case b.

$b=c*cos(A)$

STEP 2e: Substitute the values of each variable into the formula for cosine.

$b=8*cos(45)$

STEP 2f: Cancel the common factor of 2.

$a=4\sqrt{2}$

HOPE THIS HELPS!

4 0

2 years ago

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12k + 26 factor completely pls help

Liula [17]

Answer:

$2\left(6k+13\right)$

Step-by-step explanation:

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2 years ago

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Work out the surface area of this cylinder. Radius-7 cm Height-12 cm

RideAnS [48]

Answer:

226pi

Step-by-step explanation:

2 * pi * 7 *(7+12)

4 0

2 years ago

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