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Yuliya22 [10]
3 years ago
13

For point (3,-7) what is it’s distance to the x-axis

Mathematics
1 answer:
Elena L [17]3 years ago
5 0

Answer:

7 units

Step-by-step explanation:

(3,-7) is 7 units from 3,0 on the x axis

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Which of the following points could be the initial point of vector v if it has a magnitude of 10 an the terminal point (-1,5)?
Eddi Din [679]
Let the initial point of the vector be (x,y). Then the magnitude of the vector v can be written as:

|v|= \sqrt{ (-1-x)^{2} + (5-y)^{2} }

The magnitude of vecor v is given to be 10. So we can write:

10= \sqrt{ (-1-x)^{2} + (5-y)^{2} } \\ \\ 100=(-1-x)^{2} + (5-y)^{2}

Now from the given options, we have to check which one satisfies the above equation. That point will be the initial point of the vector. 

The point in option d, satisfies the equation.

100=(-1+7)^{2} +(5+3)^{2}  \\  \\ 
100=36+64 \\  \\ 
100=100

Thus, the answer to this question is option D
7 0
3 years ago
Student finished eighth of homework problem in the class If the ratio of problem she finish to problem she still had left was 4.
omeli [17]
5 homework problems because 4+1=5
6 0
3 years ago
Need someone to help me please!
mylen [45]

Answer:

\huge\boxed{\sf A = 8\ cm\²}

Step-by-step explanation:

<u>Given data:</u>

Base = b = 4 cm

Height = h = 4 cm

<u>Required:</u>

Area of triangle = A = ?

<u>Formula:</u>

A = bh / 2

<u>Solution:</u>

A = (4)(4) / 2

A = 16 / 2

A = 8 cm²

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>

4 0
2 years ago
Read 2 more answers
Find the area of the regular polygon
Vsevolod [243]

Answer:

433.4

Step-by-step explanation:

Height will be (14/2)/tan36 which is 9.63, then area for one triangle is 1/2*hb which is .5*9.63*7 is 43.34, times 10 you get 433.4

7 0
3 years ago
Tim has twice as many marbles as Luke together they have 39 marbles how many marbles does time have
Travka [436]
Tim has 2 times as luke
t=2l
they have 29 goether
t+l=39
subsitute
2l+l=39
3l=39
divide by 3
l=13

subsitue
t=2l
t=2(13)
t=26


tim has 26 and luke has 13
I don't know how many marble Tim has but probably all of them since alll must die and then the marbles go to Time
3 0
3 years ago
Read 2 more answers
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