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Kryger [21]
3 years ago
10

2x+9=3(4x-7) help show work

Mathematics
1 answer:
ivann1987 [24]3 years ago
3 0

Answer:

2x+9=12x-21

-2.      -2

9=10x -21

+21           +21

30=10x

Divide by 10 on both sides

30/10

x=3

Step-by-step explanation:

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write a function g whose graph represents the indicated transformation of the graph of f. f(x)=|x+1|-3; horizontal stretch by a
dybincka [34]

Answer:

f(x) = |\frac{1}{9}(x+1)|-3

Step-by-step explanation:

The value representing the horizontal scaling must be placed inside the absolute value, and we need to put () around x - 1 to change the horizontal shift as well. And remember that we must use the reciprocal in the function, so instead of writing y = |9(x+1)|-3, we need to write y = |\frac{1}{9}(x+1)|-3.

6 0
2 years ago
Write the slope-intercept equation of line that passes through (4,-5) and (5, -7).
Georgia [21]

Answer:

y = mx + b

m = (-7 - -5) / (5 - 4) = -2

y = -2x + b

Use either point to find b

Using (4, -5):

-5 = (-2)(4) + b

-5 = -8 + b

b = 3

y = -2x + 3

Step-by-step explanation:

4 0
3 years ago
What is the product of -1 3/8 and 2 4/5?
kati45 [8]
-1 3/8 and 2 4/5
-1 15/40 and 2 32/40
1 17/40
I hope that helps you!
7 0
3 years ago
From a boat on the lake, the angle of elevation to the top of a cliff is 26°35'. If the base of the cliff is 85 feet from the bo
Trava [24]
Check the picture below

now, <span>26°35' is just 26bdegrees and 35 minutes

your calculator most likely will have a button [ </span><span>° ' " ]  to enter degrees and minutes and seconds

there are 60 minutes in 1 degree and 60 seconds in 1 minute

so.. you could also just convert the 35' to 35/60 degrees

so </span>\bf 26^o35'\implies 26+\frac{35}{60}\implies \cfrac{1595}{60}\iff \cfrac{319}{12}&#10;\\\\\\&#10;tan(26^o35')\iff tan\left[ \left( \cfrac{391}{12} \right)^o \right]

now, the angle is in degrees, thus, make sure your calculator is in Degree mode

5 0
3 years ago
Read 2 more answers
Help Asap! I have 30 minutes! 30 Points!
Vladimir79 [104]
(2x - 5) (5x - 10)
Use FOIL
10x² - 20x - 25x + 50

10x²  - 45x + 50
 

5( 2x² - 9x + 10)

     2x           -5 
      x             -2

5(2x - 5)(x -2)

make each equal to 0
2x - 5 = 0
x - 2 = 0

2x - 5 = 0                        x - 2 = 0
2x - 5 (+5) = 0                x - 2 (+2) = 0 (+2)
2x = 5                             x  = 2
x = 5/2

x = 5/2 , 2

hope this helps
6 0
3 years ago
Read 2 more answers
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