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Anon25 [30]
3 years ago
5

Find B'A length and AD length

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
6 0
B'A Length: 90 degrees
AD Length: 31.5 degrees
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I need help now plz​
Romashka-Z-Leto [24]

Answer:

C

Step-by-step explanation:

The picture is a bit blurry, but from what i can see, i'd say C (whichever one has -4 x 3 x 1 under the square root.)

So for this, you need to know the quadratic formula, which is:

\frac{-b ± \sqrt{b^{2} -4ac} }{2a}

<em>*ignore the weird capital A, it keeps coming up when i try to use the ± symbol</em>

They have given you the equation of a quadratic, so the first thing you have to do is rearrange it, so that x^{2} comes first.

<u>So now we have the equation: 3</u>x^{2}<u> - 2x +1</u>

*the quadratic formula uses a, b and c, but they are specific. a is always the coefficient of x^{2} , b is always the coefficient of x and c is always the constant (number without an x)

<u>So, i can find that, in this case:</u>

a = 3      b= -2    c=1

<u>Now substitute each of those values it into the original quadratic equation:</u>

<u />

\frac{-(-2) ± \sqrt{(-2)^{2} -4(3)(1)} }{2(3)}

<em>*again, ignore the weird capital A. </em>

That's how you find the answer, which from what i can tell in the picture is C.

Hope that helped : )

6 0
3 years ago
Jordan and Sharla are saving money to go on a study abroad trip. They must provide a down payment of $650 to sign up for the tri
RSB [31]

Jordan and Sharla are saving money to go on a study abroad trip. They must provide a down payment of $650 to sign up for the trip, and they can pay the remaining balance later. Jordan raises money by mowing lawns in his neighborhood and charges $25 per lawn. Sharla raises money by selling handmade necklaces for $15 each. Sharla raises less money than Jordan does because Sharla 3. only has enough materials to make 40 necklaces. (A) write two constraints to model the problem. Let x represent the number of lawns Jordan mows and y represent the number of necklaces Sharla sells. (B) can Sharla afford the down payment with the money she earns selling her necklaces? Explain your answer    

this is the wrong subject

6 0
4 years ago
Read 2 more answers
A stereo costs $418.70, including 6% sales tax. How much was the sales tax itself?
gulaghasi [49]

Answer:

25.12

Step-by-step explanation:

3 0
3 years ago
What is the area of this face
GaryK [48]

Answer:

Step-by-step explanation:

4 0
4 years ago
89.6 by 7<br><br>a 0.128<br><br>b 1.280<br><br>c. 12.800<br><br>d.128.000
Andreas93 [3]

Answer: 12.800

Step-by-step explanation:

"89.6 by 7' translates to 89.6 divided by 7.

89.6 divided by 7 is equal to 12.8

Check your answer: 12.8 x 7 = 89.6

12.8 is equal to 12.800, it is the answer.

4 0
3 years ago
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