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LUCKY_DIMON [66]
3 years ago
7

Identify an equation of a line in slope-intercept form that passes through (1, 2) with a slope of -8

Mathematics
2 answers:
frozen [14]3 years ago
7 0

Answer:

y = -8x + 10

Step-by-step explanation:

y = -8x + b

2 = -8(1) + b

2 = -8 + b

10 = b

vaieri [72.5K]3 years ago
4 0

9514 1404 393

Answer:

  y = -8x +10

Step-by-step explanation:

The y-intercept can be found from the equation ...

  b = y -mx

Using the given point and slope, this is ...

  b = 2 -(-8)(1) = 10

Then the slope-intercept equation is ...

  y = mx +b

  y = -8x +10

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PLEASE HELP!! I’ll give brainlest or whatever it’s called
Nataly_w [17]

Answer: y is 23 and x is 139 so x + y = 162

Step-by-step explanation:

(23-x)+(2x+18)=180

41+x=180

x=180-41

x=139

8 0
2 years ago
Three expressions that are equal to 5/9 x 8
madam [21]

Answer:

  • \frac{13}{9}+3
  • \frac{22}{9}+2
  • \frac{85}{9}-5

They all equal \frac{5}{9}*8 because they all give \frac{40}{9}

Step-by-step explanation:

  • \frac{13}{9}+3
  • \frac{22}{9}+2
  • \frac{85}{9}-5

They all equal \frac{5}{9}*8 because they all give \frac{40}{9}

Done by writing three equations with one random number and the desired result, \frac{40}{9}, returning the answers above.

4 0
3 years ago
Simplify the expression. Write your answer as a power.<br><br> (−5/7)^8⋅(−5/7)^9
dem82 [27]

Answer: (-\frac{5}{7})^{17}

Step-by-step explanation:

The expression can be simplified by applying the a properties of exponents, specifically the Product of powers, which states that:

(b^a)(b^c)=b^{(a+c)

Where b is the base and a and c are exponents.

 Then simplify it by rewriting the base (-\frac{5}{7}) and adding the exponents of the expression (8 and 9).

You will get the expression simplified and written as a power:

(-\frac{5}{7})^8(-\frac{5}{7})^9=(-\frac{5}{7})^{(8+9)}=(-\frac{5}{7})^{17}

3 0
3 years ago
Cain measured his couch and found it is 3 3/4 meters long what is the length as a decimal
11Alexandr11 [23.1K]
3 3/4
= 3+ 3/4
= 3+ 0.75
= 3.75

The length as a decimal is 3.75 m~
5 0
3 years ago
Need some help with these problems!
LekaFEV [45]

Answer:

<em>h=12, w=24, t=8</em>

Step-by-step explanation:

<u>System of Linear Equations </u>

We have 3 unknown variables and 3 conditions between them. They form a set of 3 equations with 3 variables.

We have the following data, being  

w = price of a sweatshirt

t = price of a T-shirt

h = price of a pair of shorts

19.

The first condition states the price of a sweatshirt is twice the price of a pair of shorts. We can write it as

\displaystyle w=2h

The second condition states the price of a T-shirt is $4 less than the price of a pair of shorts. We can write it as

\displaystyle t=h-4

The final condition states Brad purchased 3 sweatshirts, 2 pairs of shorts, and 5 T-shirts for $136, thus

\displaystyle 3w+2h+5t=136

This is the system of equations we need to solve for w,t,h

20.

To solve the system, we replace w in terms of h and t in terms of h. Those relations have been already written, so

\displaystyle 3(2h)+2h+5(h-4)=136

Operating

\displaystyle 6h+2h+5h-20=136

\displaystyle 13h=156

Solving for h

\displaystyle h=12

The other two variables are

\displaystyle w=2h=24

\displaystyle t=12-4=8

4 0
3 years ago
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