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Tpy6a [65]
2 years ago
9

Given the function

Mathematics
1 answer:
nika2105 [10]2 years ago
4 0

\left \{ {{7x+6\:\:\:\:\:\:x

f(-1)

Solve

-7\cdot \:1+6x                          Swap the negative sign

-7+6x                               Multiply the numbers

-7+6x+7                  Add 7 to both sides

6x                                       Simplify

\frac{6x}{6}                                       Divide both sides by 6

x                                        Simplify

-7\cdot \:1+12x                     Swap the negative sign

-7+12x                          Multiply the numbers

-7+12x+7              Add 7 to both sides

12x                                   Simplify

\frac{12x}{12}                                  Divide both sides by 12

x                                      Simplify

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10

Step-by-step explanation:

using HYPOTHENUS theorem

8^2 + 6^2 = x^2

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√100=10

3 0
3 years ago
Read 2 more answers
Can someone help me how to solve this?
Assoli18 [71]

Answer:

x > -5  in the answer


Step-by-step explanation:

(5 - 3x) / 4 < 5

multiplying both sides by 4:-

5 - 3x < 20

-3x < 15

x > 15/-3

x > -5  (Note the inequality sign is flipped because we are dividing by a negative number)


8 0
3 years ago
the equation of the line a is given as y = -3/4 x -2. Suppose the line a is parallel to line b and lime t is perpendicular to li
Burka [1]

Answer: The equation for line b is y = -\frac{3}{4}x  + 5

The equation for line t is y= \frac{4}{3} x+5

The attachment shows the original line in green, the parallel line b in red, and the perpendicular line t in blue.

Step-by-step explanation: Use slope intercept form, y = mx + b

The given coordinate, (0,5) is on the y-axis, so  5 will be the y-intercept of the equation. Keep the slope of the original equation and substitute the new value for "b"  

To write the equation for line t

Both lines share the y-intercept, (0,5) so the "b" term will be the same. The slope of a perpendicular line is the reciprocal of the original slope with the opposite sign.

So invert 3/4 to become 4/3 and change the negative sign to positive.

The resulting equation is y = 4x/3 + 5

3 0
3 years ago
Use distributive property to simplify. 10(-8s-k) just need to check if -80s-10k is correct.
Nitella [24]
10(-8s-k)
(10) (-8s + -k)
(10) (-8s) + (10) (-k)
= -80s - 10k
= -10k-80s
6 0
3 years ago
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Irina-Kira [14]

Answer:

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These are things we do everyday that use Math.

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8 0
3 years ago
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