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Inga [223]
3 years ago
5

Can u guys help me plz!!!

Mathematics
1 answer:
ziro4ka [17]3 years ago
6 0

Answer:

1 is B

2 is B

3 is D

4 is C

Step-by-step explanation:

Dont care enough to explain all of them

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Write a fraction whose numerator and denominator add up to 9​
aalyn [17]

Answer:

5/4

Step-by-step explanation:

3 0
3 years ago
Two vectors A⃗ and B⃗ are at right angles to each other. The magnitude of A⃗ is 5.00. What should be the length of B⃗ so that th
creativ13 [48]

Answer:

Length of B is 7.4833

Step-by-step explanation:

The vector sum of A and B vectors in 2D is

C=A+B=(a_1+b_1,a_2+b_2)

And its magnitude is:

C=\sqrt{(a_1+b_1)^2+(a_2+b_2)^2} =9

Where

a_1=Asinx

a_2=Acosx

b_1=Bsin(x+90)

b_2=Bcos(x+90)

Using the properties of the sum of two angles in the sin and cosine:

b_1=Bsin(x+90)=B(sinx*cos90+sin90*cosx)=Bcosx

b_2=Bcos(x+90)=B(cosx*cos90-sinx*sin90)=-Bsinx

Sustituying in the magnitud of the sum

C=\sqrt{(Asinx+Bcosx)^2+(Acosx-Bsinx)^2} =9

C=\sqrt{A^2sin^2x+2ABsinxcosx+B^2cos^2x+A^2cos^2x-2ABsinxcosx+B^2sin^2x} =9

C=\sqrt{A^2(sin^2x+cos^2x)+B^2(cos^2x+sin^2x)}

C=\sqrt{A^2+B^2} =9

Solving for B

A^2+B^2 =9^2

B^2 =9^2-A^2

Sustituying the value of the magnitud of A

B^2=81-5^2=81-25=56

B= 7. 4833

8 0
3 years ago
(3a⁴-2a²t5a-10)-(2a⁴t4a²t5a-2)
Phantasy [73]

Answer:

Multiply the a nagative to what is inside the paranthesis on the right side of the nagative sign then combine like variables. This will give you your answer.

Step-by-step explanation:

Multiply the a nagative to what is inside the paranthesis on the right side of the nagative sign then combine like variables. This will give you your answer.

8 0
3 years ago
HELP ASAP!
mrs_skeptik [129]
Short Answer: 5/36
How many ways can you throw two 6 sided dice?
Since each dice has six sides, the total number of ways is 6*6 = 36 ways.

How many ways can an 8 be thrown? To make the differences easier to see use a green colored die and a red colored die.

Red      Green
2            6
6            2
5            3
3            5
4            4 That's five different ways of getting an 8.

The probability is 

5 / 36 <<<<< answer

7 0
3 years ago
What does the ratio 64:60 reduce to?
sesenic [268]
It would reduce to 16:15

They both share 4 as a common factor. 4 goes into 64, 16 times and 4 goes into 60, 15 times. Therefore allowing 64:60 to reduce to 16:15
3 0
3 years ago
Read 2 more answers
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