MATHEMATICS HIGH SCHOOL

What’s the length of the missing leg ??
Pls help!!

Answers

Answer 1

Answer: The answer i got is 12

Answer 2

Answer:

Answer:

Step-by-step explanation:

If you use the pathagrem therom a^2+b^2=c^2 and fill it in it would be 9^2+b=15^2.

Then just do basic math to simplify the equation

9*9=81

15*15=225

81+b= 225

b= 225-81

b= 144

finally square root 144 and thats how you get 12

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the scale of a map says that 6cm represents 15 km. what distance on the map represents an actual distance of 6 kilometres

Answers

Answer:

2.4 cm

Step-by-step explanation:

$(6)/(15) = (x)/(6) \n \n 15x = 6 * 6 \n \n 15x = 36 \n \n x = (36)/(15) \n \n x = 2.4$

5y – 2x = 4 and x = 8.

Answers

Answer:

y = 4 is the correct solution.

Step-by-step explanation:

If x = 8, then we can plug this into the equation 5y – 2x = 4 to solve for y:

5y – 2(8) = 4

5y – 16 = 4

5y = 20

y = 4

Therefore, the solution to the system of equations 5y – 2x = 4 and x = 8 is y = 4.

We can check our answer by substituting y = 4 into the original equation:

5(4) – 2x = 4

20 – 2x = 4

-2x = -16

x = 8

Since x = 8 is a solution to the original equation, we can confirm that y = 4 is the correct solution.

Reggie can line a football field in 120 minutes. Rosalinda can line a football field in 80 minutes. If they work together, how many minutes does it take them to line a football field?a. 40 minutes
b. 80 minutes
c. 200 minutes
d. 240 minutes HELP?!

Answers

Answer:

If they work together, they take 48 minutes to line the football field.

Step-by-step explanation:

Given: Reggie can line a football field in 120 minutes. Rosalinda can line a football field in 80 minutes.

To find : If they work together, how many minutes does it take them to line a football field?

Solution :

If they work together,

Let the number of minutes(x) they take to line the foot ball field.

According to question,

$(1)/(x)=(1)/(120)+(1)/(80)$

$(1)/(x)=(80+120)/(120* 80)$

$(1)/(x)=(200)/(120* 80)$

Cross multiply,

$x=(120* 80)/(200)$

$x=12* 4$

$x=48$

Therefore, If they work together, they take 48 minutes to line the football field.

Answer: If they work together, they can line a football field in 48 minutes.

Step-by-step explanation: Given that Reggie can line a football field in 120 minutes and Rosalinda can line a football field in 80 minutes.

We are to find the number of minutes does it take them to line a football field if they work together.

We have

Time taken by Reggie to line a football field = 120 minutes.

So, in 1 minute, Reggie can line $(1)/(120)$ part of the field.

Time taken by Rosalinda to line a football field = 80 minutes.

So, in 1 minute, Rosalinda can line $(1)/(80)$ part of the field.

Therefore, if they work together, the portion of the football field that they can lie in 1 minute is given by

$(1)/(120)+(1)/(80)\n\n\n=(2+3)/(240)\n\n\n=(5)/(240)\n\n\n=(1)/(48)$

Thus, if they work together, they can line a football field in 48 minutes.

Which of the following is the function representing the graph below? graph begins in the third quadrant near the line y equals negative 3 and increases slowly while crossing the ordered pair 0, negative 2. When the graph enters the first quadrant, it begins to increase quickly throughout the graph.f(x) = 4x
f(x) = 4x − 3
f(x) = 4x + 3
f(x) = 4(x + 3)

Answers

Answer:

f(x) = 4^x -3

Step-by-step explanation:

All of the listed functions are linear functions with a constant slope of 4. None of them goes through the point (0, -2).

So, we assume that there is a missing exponentiation operator, and that these are supposed to be exponential functions. If the horizontal asymptote is -3, then there is only one answer choice that makes any sense:

f(x) = 4^x -3

_____

The minimum value of 4^z for any z will be near zero. In order to make it be near -3, 3 must be subtracted from the exponential term.

How to solve 9x+5=28
-3x-10y=-26 by Elimination

Answers

so elimination
I assume that you meant to write
9x+5y=28 and not 9x+5=28
so

elimination is basically eliminating values

9x+5y=28
-3x-10y=-26
we can either cancel out the x terms or the y terms, I will cancel out the y terms

9x+5y=28
multipy both sides by 2
18x+10y=56
add to other equation

18x+10y=56
-3x-10y=-26 +
15x+0y=30
15x=30
divide both sides by 15
x=2

subsitute

9x+5y=28
9(2)+5y=28
18+5y=28
subtract 10 from both sides
5y=10
divide both sides by 5
y=2

x=2
y=2

9x + 5 = 28
      - 5   - 5
      9x = 23
   9 9
      x = 2⁵/₉

-3(2⁵/₉) - 10y = -26
    -7²/₃ - 10y = -26
+ 7²/₃    + 7²/₃
-10y = -18¹/₃
   -10 -10
   y = 1⁵/₆
   (x, y) = (2⁵/₉, 1⁵/₆)

A publisher claims that the average salary paid at its company is $37,500 but it could differ as much as $4500. Write and solve an absolute value inequality to determine the range of salaries at this company.|x − 37500| ≤ 4500; The salaries range from $33,000 to $42,000

|x − 37,500| ≤ 4500; The salaries are less than $33,000 or greater than $42,000.

|x − 37500| ≥ 4500; The salaries range from $33,000 to $42,000

|x − 37,500| ≥ 4500; The salaries are less than $33,000 or greater than $42,000.

Answers

In this problem, the mean salary is equal to $37,500 while the maximum salary is $4500 more than the mean and the mnimum salary is $4500 less than the mean salary. This means the equation that represents the salaries is |x − 37500| ≤ 4500; The salaries range from $33,000 to $42,000

Answer:

its A

Step-by-step explanation:

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