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Temka [501]
3 years ago
9

What is this symbol? and can someone please solve this algebra equation for me please?

Mathematics
2 answers:
ella [17]3 years ago
8 0
That symbol means that the number is squared. 

So X^2 means that it's X squared. 
Aleks04 [339]3 years ago
3 0
X^2 means that it's X squared. 
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CD is perpendicular to AB and passes through point C5, 12).
Aleksandr-060686 [28]

Answer:

x intercept of CD = 17

Step-by-step explanation:

We are given a line AB with its end coordinates. and Another line segment CD which is perpendicular to AB. We have the coordinates of C , and we are asked to find the x intercept of line CD.

For that we need to find the equation of CD

we have coordinates of C , and hence if we have slope of CD we can find equation of CD

Slope of CD can be determine with the help of slope of AB as CD⊥ AB

So, the slope of CD mCD = -\frac{1}{mAB}

Hence we start from determining slope of AB

slope is given as

m= \frac{y_2-y_1}{x_2-x_1}

m= \frac{14-(-3)}{7-(-10)}=\frac{17}{17}=1

Hence mAB=1

There fore mCD=-1

(∵  Product of Slopes of two perpendicular lines is always -1)

Now we find the equation of CD with the help of slope -1 and coordinates of C(5,12)

m=\frac{y-y_1}{x-x_1}

-1=\frac{y-12}{x-5}

-x+5=y-12

y=-x+17

Hence we have our equation , now in order to find the x intercept we keep y = 0 in it and solve for x

0=-x+17

x=17

Hence the x intercept is 17

8 0
2 years ago
If $17,800 is invested at an interest rate of 8% per year, find the value of the investment at the end of 5 years for the follow
marta [7]

Answer:

7120

Step-by-step explanation:

6 0
2 years ago
Having trouble with this and 3 others
gavmur [86]

Answer:

View Image

Step-by-step explanation:

View Image

8 0
3 years ago
Are these figures are similar? If so, what is the scale factor?
tester [92]

Answer:

Yes, the scale factor is 0.6 repeating, or 0.7.

Step-by-step explanation:

You find the scale factor by dividing the smaller sides by the corresponding larger ones.

12/18 = 0.6 repeating

14/21 = 0.6 repeating

16/24 = 0.6 repeating

These triangles could be similar by SSS or SAS or ASA I think since congruent angles are shown in both triangles as well.

8 0
2 years ago
Which of these triangle pairs can be mapped to each other using a reflection
tia_tia [17]
Help me! I’ll mark you brainly!
8 0
3 years ago
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