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dem82 [27]
3 years ago
5

Add 3x4 - 7x3 + 12x - 9

Mathematics
1 answer:
PolarNik [594]3 years ago
8 0

Answer:

i also need

Step-by-step explanation:

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Heyy pls help! worth 20 points, and please only help if you know the answer. also no links those r kinda annoying lol
iragen [17]

Step 1: Find the slope:

    m= \dfrac{y_2-y_1}{x_2-x_1}= \dfrac{-2-7}{4-(-2)} =  \dfrac{-9}{6}= -\dfrac{3}{2}

This gives you y=-\dfrac{3}{2}x+b, but we need to find b.

To find b, substitute in one (x,y) pair and it doesn't matter which one.  I'll go with (4,-2):

    \begin{aligned}-2&=-\dfrac{3}{2}(4)+b\\[0.5em]-2&=-6+b\\[0.5em]4&=b\end{aligned}

Now take that b-value and plug in into the slope-intercept form:

     y=-\dfrac{3}{2}x+4

It's always a good idea to toss in the other x-value from the other point, to make sure it checks out.

7 0
3 years ago
AJ purchased a new TV for $1200. The regular price of the TV was $1500.what percent did AJ save buying it on sale ?
svet-max [94.6K]

A. 20%


Work: 1500 x .20 = 300

1500 - 300 = 1200


Hope this helps!

4 0
3 years ago
In a certain survey of 1,024 ​adults, 83​% reported having more than one television at home. Find the actual number of responden
irina [24]

Answer:

soorrry dont know butt am suRe you wil get the answer from someone else sooonnn

Step-by-step explanation:

6 0
3 years ago
What is the mode of this data set?
Bess [88]
The mode of the data set is 68
6 0
3 years ago
Without using a calculator, order the following numbers from least to greatest
SpyIntel [72]
The square root of 78 is a number which when multiplied by itself results in 78. The square root of 78 is denoted by √78. 78 can be expressed as 78 = 2 × 3 × 13. Hence, on simplifying square root of 78 is written as √78

so the least number is root 78 , 9 , 10
8 0
3 years ago
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