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Solnce55 [7]
4 years ago
7

What is an expression for vector x involving vector r, vector s, and vector t?

Mathematics
1 answer:
navik [9.2K]4 years ago
3 0
X = -3r + s - t ....
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the radius of a circle is 2 cm. A point 8cm away from the center of the circle. What is the length of the tangent drawn to the c
SIZIF [17.4K]

Answer:

7.75 cm

Step-by-step explanation:

Let a circle having centre O and AB is a tangent of the circle and OB is the radius of the circle = 2 cm. And join AO such that AO = 8 cm.

AB=\sqrt{(AO)^{2}- (OB)^{2}} cm

AB=\sqrt {8^{2}-2^{2}}=\sqrt{60}=7.745966692 cm\approx 7.75 cm

3 0
3 years ago
In a cash drawer there is $125 in $5 and $10 bills. The number of $10 bills is twice the number of $5 bills. How many of each ty
WINSTONCH [101]

Let us take number of $5 bills = x and

                   number of $10 bills  = y.

Give that "number of $10 bills is twice the number of $5 bills".

So, y is twice of x,

We can setup an equation.

y= 2x                      ............................... equation(1)

Total value of all bills = $125.

We can setup another equation,

5*(number of $5 bills) + 10*(number of $10 bills) =125.

5(x) +10(y) = 125                         ................................... equation(2)

Plugging y=2x in equation(2), we get

5(x) +10(2x) = 125   .

5x+20x = 125.

Adding like terms

25x = 125

Dividing both sides by 25.

25x /25 = 125/25

x= 5.

Plugging x=5 in first equation, we get

y= 2(5) = 10.

Therefore, number of number of $5 bills=5 bills  and number of $10 bills = 10 bills.


5 0
3 years ago
Solve the absolute value inequality: [X + 12[ +5 <27
Westkost [7]

Answer:

Option C.

Step-by-step explanation:

The given absolute value inequality is

|x+12|+5

Isolate the absolute value by subtracting 5 from both sides.

|x+12|+5-5

|x+12|+0

|x+12|

Therefore, the correct option is C.

We can further solve this, to find the solution of the given inequality.

-22

Subtract 12 from each sides.

-22-12

-34

The solution of given inequality is -34.

5 0
3 years ago
What is the value of f(1)?
raketka [301]
Find x=1 on the graph.  Above it is a horiz. blue line that tells us y = 0.

So f(1)=0.
3 0
3 years ago
jayla is making cookies. The recipe says that she has to mix 160 grams of sugar into the flour. Jayla knows that 1 cup of this p
Kitty [74]

47 {?}^{2}
4 0
3 years ago
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