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2 years ago

PLEASE HELP!!!!!!!!!!!!!!!!

Mathematics

1 answer:

rodikova [14]2 years ago

8 0

Answer:

Step 2

Step-by-step explanation:

Don't Question It

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-3 + 5n > -13 <br> i need help on this someone please help

Butoxors [25]

Answer:

n > -2

Step-by-step explanation:

5n > -10

n > -2

8 0

3 years ago

Read 2 more answers

Write the number 1.6 x 105 in standard form

Natalka [10]

Answer:

168

Step-by-step explanation:

Multiply normally don't even look at the decimal point then look at how many numbers are after the decimal point after multiplying, then the many times the numbers are after the decimal point in both numbers you will place that decimal point that many places FROM the RIGHT.

3 0

3 years ago

Please help emergency

Firdavs [7]

Step-by-step explanation:

This is a probability related problem.

Probability is the likelihood of an event to occur;

Pr = $\frac{number of possible outcomes}{Total sample space}$

The sample space here is from 1 to 25 which is 25

Pr of a card marked 8; we have just 1 possible outcome;

Pr(8) = $\frac{1}{25}$

Pr of drawing a card that is a multiple of 5;

Multiples of 5 = 5, 10, 15 and 25

Pr (multiples of 5) = $\frac{4}{25}$

Pr of drawing a card with odd numbers:

Number of odd numbers between 1 and 25 = 13

Pr(odd numbers) = $\frac{13}{25}$

Pr of drawing a number with square number on it;

Square numbers between 1 and 25 = 1, 4, 9, 16 and 25

Pr(square numbers) = $\frac{5}{25}$ = $\frac{1}{5}$

3 0

2 years ago

Jamie takes at random a counter from the bag and records the colour. Red : blue : green = 1:3:7 Jamie does this a number of time

Sonbull [250]

Answer: There are 249 times Jamie takes a counter from the bag.

Explanation:

Since we have given that

Ratio of colour of red to blue to green is 1:3:7.

Number of blue counters = 68

Let the total number of times Jamie does from the bag be x.

So, According to question,

$\frac{3}{11}\times x=68\\\\x=\frac{11}{3}\times 68\\\\x=249.33\\\\=249\ approx.$

Hence, there are 249 times Jamie takes a counter from the bag.

8 0

3 years ago

Solve x^2 + 4x + 8 = 0

Mkey [24]

Answer:

x = -2 + 2 i or x = -2 - 2 i

Step-by-step explanation:

Solve for x:

x^2 + 4 x + 8 = 0

Subtract 8 from both sides:

x^2 + 4 x = -8

Add 4 to both sides:

x^2 + 4 x + 4 = -4

Write the left hand side as a square:

(x + 2)^2 = -4

Take the square root of both sides:

x + 2 = 2 i or x + 2 = -2 i

Subtract 2 from both sides:

x = -2 + 2 i or x + 2 = -2 i

Subtract 2 from both sides:

Answer: x = -2 + 2 i or x = -2 - 2 i

8 0

2 years ago