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charle [14.2K]
3 years ago
7

What is ​ BC ​ ? Enter your answer in the box.

Mathematics
1 answer:
tangare [24]3 years ago
5 0
Lines AB and AC are equal so you set up an equation like so...
4x + 1 = 2x + 23
Subtract 1 from both sides.
4x = 2x + 22
Subtract 2x from both sides.
2x = 22
Divide.
x = 11
Now you need to plug in 11 into 3x - 8.
3(11) - 8
= 33 - 8
= 25
So BC is 25.
I hope this helps love! :) 
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What is 12+12 and give good reson why
Ilia_Sergeevich [38]

Answer:

24

Step-by-step explanation:

you have 12 of something and Are adding 12 to it.

3 0
2 years ago
Ancient slingshots were made form straps of leather that cradled a rock until it was released. One would spin the slingshot in a
Greeley [361]
We separate equation by looking at x and y projection separately. 
Let us look at the x projection first.
Motion starts with initial velocity v_0cos(45) because there is no force acting along the x-axis we don't have any acceleration along the x-axis.  Our equation would be:
x=v_0cos(45)\cdot t
Now our y equation will be a little bit more complicated. There is gravity working against our projectile and we also have to take into effect the hight from which the projectile is launched.
With all that in mind let us write the equation for y projection:
y=h+v_0sin(45)\cdot t-g \frac{t^2}{2}
The term -g \frac{t^2}{2} represents gravity and as you can see it is negative, which means gravity is pulling our projectile down. 
There is one more thing we can do. We can express initial velocity v_0 in relation to circular motion used to launch the projectile.
v_0=w\cdot r
Where r is the length of the letter used to launch the projectile, and w is angular velocity.  
If we combine our x and y equations we can get the trajectory of our projectile.
y=h+x- \frac{gx^2}{2\cdot (wr)^2cos^2(45)}
This is the equation of a parabola. If you follow this link(https://www.desmos.com/calculator/vogcuygjhs) it will take to an interactive graph where you can see how trajectory looks like depending on some of the paramaters.
8 0
3 years ago
Read 2 more answers
Ariana earns 20% commission as a salesperson. She sold a ceramic vase that cost $78. How much commission did Ariana earn?​
frutty [35]

Answer:

The answer is 15.6.

Step-by-step explanation:

20% of $78 = 15.6

Please mark as brainliest if this helped!

8 0
3 years ago
Kate and Jean paint a house together in 6 days. If they work alone, Kate takes 5 fewer days than Jean would take to do the same
navik [9.2K]
X = number of days it would take Kate to paint the house by herself. .
<span>x+5 = number of days it would take Jean to paint the house by herself.</span>
<span>Together, they paint the house in 6 days: </span>
<span>1/x + 1/(x+5) = 1/6 </span>
<span>Multiply both sides by 6x(x+5) </span>
<span>6(x+5) + 6x = x(x+5) </span>
<span>12x + 30 = x^2 + 5x </span>
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4 0
3 years ago
Read 2 more answers
I need answers asap I believe it’s 24 not sure tho
Andru [333]

Answer:

You're correct. x = 24.

Step-by-step explanation:

:)

6 0
3 years ago
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