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marshall27 [118]
2 years ago
10

Find the difference. $-12-7=$

Mathematics
1 answer:
kramer2 years ago
6 0
Answer: -5
-12 is going to stay a negative and your going to change the -7 into a positive 7 because your subtracting. And you make it a negative because 12 is a bigger number then 7
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Find the length of side x in simplest radical form with a rational denominator
gregori [183]

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Solved i need the answer ASAP
makkiz [27]

Answer:

V = - 3

Step-by-step explanation:

- 1 =  \frac{1}{3} v \\  \\  - 1 \times 3 = v \\  \\ v =  - 3

Your answer is absolutely correct.

8 0
3 years ago
Select the correct answer from each drop-down menu.
finlep [7]

Answer:

Coordinates of point B are (10,-4)

Coordinates of point D are (3.6,-0.4)

Step-by-step explanation:

1) Point C(3.6, -0.4) divides in the ratio 3 : 2. If the coordinates of A are (-6, 5), the coordinates of point B are ____

Let the coordinates of B be (x_2,y_2)

Coordinates of A =(x_1,y_1)=(-6,5)

Coordinates of C=(x,y)=(3.6,-0.4)

We will use section formula over here

x=\frac{mx_2+nx_1}{m+n} , y = \frac{my_2+ny_1}{m+n}

m:n=3:2

3.6=\frac{3x_2+2(-6)}{3+2} , -0.4=\frac{3y_2+2(5)}{3+2}3.6 \times 5 = 3x_2-12, -0.4 \times 5 = 3y_2+10\\18+12=3x_2 , -2=3y_2+10\\30=3x_2 , -12=3y_2\\10=x_2, -4=y_2\\

Coordinates of B = (10,-4)

2)If point D divides in the ratio 4 : 5, the coordinates of point D are ____

(fraction)

Let the coordinates of D be (x,y)

Coordinates of A =(x_1,y_1)=(-6,5)

Coordinates of B=(x_2,y_2)=(10,-4)

We will use section formula over here

x=\frac{mx_2+nx_1}{m+n} , y = \frac{my_2+ny_1}{m+n}

m:n=3:2

x=\frac{3(10)+2(-6)}{3+2} , y=\frac{3(-4)+2(5)}{3+2}\\x=3.6,y=-0.4

Coordinates of point B are (10,-4)

Coordinates of point D are (3.6,-0.4)

4 0
3 years ago
What is10 + 9 <br><br> i really dont know <br><br> can someone help me
Tresset [83]

\huge \green{ \boxed{ANSWER}}

10  \:  +  \: 9 \:  =  {\boxed{19}}

USE CALCULATOR -_-

\mathfrak{JazmineChoi}

<em><u>STAN </u></em><em><u>TREASURE</u></em>

8 0
2 years ago
Read 2 more answers
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