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3 years ago

Solve for x please. :)

Mathematics

2 answers:

hoa [83]3 years ago

7 0

Answer:

x = 105°

Step-by-step explanation:

Because x° and 75° are supplementary angles (sum equals 180°), we cand do 180° - 75° to find x.

180° - 75° = x

x = 105°

aksik [14]3 years ago

4 0

Answer:

x=105

Step-by-step explanation:

75+75+x+x=360

150+2x=360

2x=210

x=105

I hope this is correct and helps you!

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How many solutions does the system have? y=-5x-1 y=-5x+7

vesna_86 [32]

Answer:

Step-by-step explanation:

to do these types of problems, we must compare the slopes and the y int's

in y = mx + b form, the slope will be in the m position and the y int will be in the b position.

y = mx + b

y = -5x - 1......slope here is -5 and y int is -1

y = -5x + 7....slope here is -5 and y int is 7

learn these....it really helps

if the slopes are the same, but the y int different, there is no solution because ur lines are parallel

if the slopes are different and the y int are different, then there will be one solution

if the slopes are the same and the y int are the same, there is infinite solutions because u have the same line.

so the answer to this problem is : NO SOLUTIONS...ur lines are parallel and never cross

8 0

3 years ago

Find a negative real number such that the square of the sum of the number and 5 is equal to 48

ioda

(n+5)^2=48
sqrt both sides
n+4=+/-4√3
minus 4 both sides
n=-4+/-4√3

-4+4√3>0 so this cannot be the value of n
n=-4-4√3

the number is -4-4√3

6 0

3 years ago

Please help me with my math ty

Alja [10]

Hello!

You can use the Pythagorean Theorem to solve this

$a^{2} + b^{2} = c^{2}$

c is the hypotenuse which is the side across the right angle
a and b are the other sides

Put in the values you know

$9^{2} + 12^{2} = c^{2}$

Square the numbers

$81 + 144 = c^{2}$

Add

$225 = c^{2}$

Take the square root of both sides

15 = c

The answer is 15

Hope this helps!

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Blizzard [7]

The answer is 0.60 because the sum of the shaded angles equals 145°, divided by 360° equals 0.60

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3 years ago

Christopher is 5.2 feet tall and his baby sister is 3 3/4 feet tall. How much taller is Christopher than his baby sister?

vladimir1956 [14]

1 9/20 feet or 1.45 feet.

8 0

3 years ago

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