3 years ago

Evaluate |-9|= Please helpp

Mathematics

2 answers:

miv72 [106K]3 years ago

6 0

Answer:

Step-by-step explanation:

How to solve your question

Your question is

−

|-9|

∣−9∣

Solve

Find the absolute value

−

Solution

son4ous [18]3 years ago

4 0

He or she was right it’s 9

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5x + 2 (3x - 1) simplify please show your work

AVprozaik [17]

Answer

11x-2

Step-by-step explanation:

5x+(2)(3x)+(2)(-1)

=5x+6x+-2

now combine like terms

=5x+6x+-2

=(5x+6x)+(-2)

=11x+-2

hope this helps:)

8 0

3 years ago

At a temperature of t degrees Fahrenheit, sound travels s feet per second, where s equals 21.9 StartRoot 5 t plus 2457 EndRoot

mafiozo [28]

Answer:

32.63 F

Step-by-step explanation:

The function:

$s = 21.9 \; \sqrt{ 5 t + 2457 }$

represents sound travels s at feet per second, where t is the temperature at Fahrenheit degrees.

We know that sound traveled at a rate of 1121 ft/sec. To find the temperature we need to replace with s value and isolate t for the above function.

$1121 = 21.9 \; \sqrt{ 5 t + 2457 }$

$\frac{1121}{21.9} = \sqrt{ 5 t + 2457 }$

$51.19^2 = 5 t + 2457$

$2620.13 - 2457 = 5 t$

$\frac{163.13}{5} = t$

$32.63 \; F= t$

8 0

3 years ago

Read 2 more answers

FG has a midpoint at M(5, 7). Point G is at (9,5). Find the coordinates of point F. Write the coordinates as decimals or integer

koban [17]

I don’t know i need points though

8 0

3 years ago

Mia is going on a 238-mile bicycle trip. If she rides 14 miles each day, how many days will it take her to finish the trip?

Papessa [141]

Answer:

17 days

Step-by-step explanation:

238/14 = 17

7 0

3 years ago

Angles a= 3x + 5 b= 5x - 18. C= 7x - 2

suter [353]

Answer:

x = 13.

So the 3 angles are a = 44, b = 47 and c = 89 degrees.

Step-by-step explanation:

If these are the angles are the 3 angles of a triangle they sum to 180 degrees, so:

3x + 5 + 5x - 18 + 7x - 2 = 180

15x - 15 = 180

15x = 195

x = 195/15

x = 13.

5 0

4 years ago