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3 years ago

HELP PLEASE WILL MARK BRAINLIEST!!

Mathematics

1 answer:

kakasveta [241]3 years ago

8 0

7Cos33. use Soh Cah Toa to remember Sine Cosine and Tangent. SINE opposite hypotnuse,, COSINE, Adjacent Hypotnuse,, TANGENT Opposite adjacent. so the problem starts as Cos33°= Adjacent/7 . but to type it in the calculator, it becomes 7Cos33° . (think of adjacent as “X” and that you need to get X alone,, so you multiply 7 on both sides to get X alone. We multiply bc multiplication undos division)

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Find the value of -3/8 x 8/15=

g100num [7]

Answer:

-1/5

Step-by-step explanation:

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3 years ago

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Solve the system of equations by elimination. Show your work. i’ll give brainliest

My name is Ann [436]

Answer:

x = 5

y = 4

Step-by-step explanation:

multiply the second equation by -1 and add the first equation to eliminate "x"

$4x+6y=44\\-4x-2y=-28$
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2 years ago

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Vera_Pavlovna [14]

when you simplify 2/4 it equals 1/2. Making them both equal the same.

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3 years ago

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Mary and Mike went to the store to buy colored pencils for their science class.mike bought a 12-pack for 1.69,and Mary bought a

sweet-ann [11.9K]

12-pack for 1.69 is a better buy

Solution:

Given that, Mike bought a 12-pack for 1.69 and Mary bought a 24-pack for 3.18

We have to find which is the better buy

First we have to find the unit rate

Unit rate is cost of 1 pack

Mike bought a 12-pack for 1.69

Therefore,

Cost of 12 pack = 1.69

Cost of 1 pack is found by dividing 1.69 by 12

$cost\ of\ 1\ pack = \frac{1.69}{12} = 0.14083$

Thus unit rate of Mike is 0.14083 dollar per pack

Mary bought a 24-pack for 3.18

Cost of 24 pack = 3.18

Cost of 1 pack is found by dividing 3.18 by 24

$cost\ of\ 1\ pack = \frac{3.18}{24} = 0.1325$

Thus unit rate of Mary is 0.1325 dollars

On comparing both the unit rate

$0.14083>0.1325$

Thus unit rate of Mike is larger

Thus, 12-pack for 1.69 is a better buy

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3 years ago

You deposit $2000 into a savings account to pay 5% interest compounded annually if you make no more deposit or any withdrawal is

Bond [772]

Answer: A = 2000(1.05)^5

Step-by-step explanation:

We would apply the formula for determining compound interest which is expressed as

A = P(1 + r/n)^nt

Where

A = total amount in the account at the end of t years

r represents the interest rate.

n represents the periodic interval at which it was compounded.

P represents the principal or initial amount deposited

From the information given,

P = $2000

r = 5% = 5/100 = 0.05

n = 1 because it was compounded once in a year.

t = 5 years

Therefore, the equation that shows how much money will be in the account after five years is

A = 2000(1 + 0.05/1)^1 × 5

A = 2000(1.05)^5

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3 years ago