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3 years ago

PLEASE HELP FOR BRAINLIEST AND EXPLAIN :)

Mathematics

2 answers:

m_a_m_a [10]3 years ago

7 0

Answer:

Step-by-step explanation:

(6s+2) + (4s-2) = 180

10s = 180

s = 18

serious [3.7K]3 years ago

3 0

X=18 because both sides have to add together to 180, since they’re angles that add up to a straight line which is 180 degrees.

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Simultaneous equation Find x and y 2x+y=5 X+3y=5

snow_tiger [21]

$x+3y=5 \ =>\boxed{x=5-3y} \\\\ 2x+y=5 \\\\ 2(5-3y)+y=5 \\\\10-6y+y=5 \\\\ -5y=5-10 \\\\ -5y=-5 \ |:(-5) \\\\ \boxed{y=1} \\\\ x=5-3*1 \\\\ x=5-3 \\\\ \boxed{x=2}$

6 0

3 years ago

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Verify the following: 15x(6+(-2) ) = (15x6) + 15x (-2)

NeX [460]

Answer:

-True-

Explanation:

the left side

is equal to the right side

, which means that the given statement is always true.

6 0

3 years ago

Evaluate g/-5, when g=-5

daser333 [38]

Answer:

g/-5= 1

Step-by-step explanation:

g=-5, so -5/-5 is 1.

6 0

3 years ago

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What is the explicit rule for the geometric sequence? 600, 300, 150, 75, ...

pochemuha

Answer:

Step-by-step explanation:

Hello, this is a geometric sequence so we are looking for a multiplicative factor.

$a_0=600\\\\a_1=a_0 \cdot \boxed{\dfrac{1}{2}} = 300 = 600 \cdot \boxed{\dfrac{1}{2}}\\\\a_2=a_1 \cdot \boxed{\dfrac{1}{2}} = 150= 300 \cdot \boxed{\dfrac{1}{2}}\\\\a_3=a_2 \cdot \boxed{\dfrac{1}{2}} = 75 = 150 \cdot \boxed{\dfrac{1}{2}}$

So, the explicit formula is for n

$\boxed{a_n=a_0\cdot \left(\dfrac{1}{2}\right)^n=600\cdot \left(\dfrac{1}{2}\right)^n}}$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

5 0

3 years ago

A basket contains four apples and six peaches. You randomly select one piece of fruit and eat it. Then you randomly select anoth

Sveta_85 [38]

Answer:

Answer as a fraction: 4/15

Answer as a decimal: 0.267

The decimal version is approximate rounded to three decimal places.

Step-by-step explanation:

6 apples, 4 peaches

6+4 = 10 pieces of fruit total

The probability of picking an apple is 6/10 = 3/5

After you pick and eat the apple, there are 10-1 = 9 pieces of fruit left. Also, the probability of picking a peach is 4/9, as there are 4 peaches out of 9 fruit left over.

Multiply out 3/5 and 4/9 to get (3/5)*(4/9) = (3*4)/(5*9) = 12/45 = 4/15

Using a calculator, 4/15 = 0.267 approximately.

6 0

2 years ago