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inessss [21]
3 years ago
7

I’m confused about this question

Mathematics
1 answer:
arsen [322]3 years ago
7 0
Angle B is 102° bc 180-78=102 and if sides DB and BC are congruent, angles D and C must also be, so you can use the original 78 and divide by 2 to get 39° for angle C
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Need help on this one please
lesya [120]

Answer: y = -2x - 4

Step-by-step explanation:

This question asks that you give your answer in slope-intercept form, which is written as y = mx + b, where m is the slope, and b is the y-intercept.


In order to write an equation for this line in slope-intercept form, you need to find the slope and the y-intercept. You can find the slope by selecting any two clear points on the graph and finding the [change in y] ÷ [change in x].

For example, I’ll use (-3, 2) and (-2, 0):

Change in y: 2 - 0 = 2

Change in x: -3 - (-2) = -1

Change in y ÷ Change in x = 2 ÷ (-1) = -2


So, the slope, m, is -2. Finding b, or the y-intercept is a lot more straightforward; you just find where the line intercepts the y-axis, or when x = 0. Looking at the graph, we can see that the y-intercept is -4, so b = -4.


Now, we can put these together in an equation.

y = mx + b, where m = -2 and b = -4


y = -2x -4

3 0
2 years ago
What is the inverse of the function g(x) = x3/8 + 16?
jeka57 [31]

Answer

g^-1(x)=\frac{8}{3}x-\frac{128}{3}

Step-by-step explanation:

7 0
3 years ago
Explain whether the points (−13,4), (−7,3), (−1,2), (5,1), (11,0), (17,−1) represent the set of all the solutions for the equati
ivann1987 [24]

Answer:

No, because the set of all solutions of y=−16x+116 is represented by the line of the equation.

Step-by-step explanation:

8 0
3 years ago
7(x + 4) + 5(x-6) please expand and simplify
Neporo4naja [7]

Answer:

12x − 2

Step-by-step explanation:

7(x+4)+5(x−6)

Distribute:

=(7)(x) + (7)(4) + (5)(x) + (5)(−6)

=7x + 28 + 5x − 30

Combine Like Terms:

=7x + 28 + 5x − 30

=(7x+5x) + (28−30)

= 12x − 2

8 0
3 years ago
Read 2 more answers
Gary wants to buy a video game with a price of $48 the game is marked as 50% off and the sales tax in his state is 4.5%
notka56 [123]
48/2=24
24×.045=1.08
24+1.08=$25.08 to purchase the game
3 0
3 years ago
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