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Natasha_Volkova [10]
3 years ago
14

Help ASAP please again​

Mathematics
1 answer:
KatRina [158]3 years ago
6 0

she got a 110 score

explanation: sorry ignore just had to do 20 characters

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3x-4y=1 and x=2y+1 using substitution
Aleksandr [31]

Answer:

x =-1

y =-1

Step-by-step explanation:

to solve this system of equation, using substiution method

3x-4y=1 ........................ equation 1

x=2y+1 ............................  equation 2

subbstitute for x into equation 1

3x-4y=1 ........................ equation 1

3(2y + 1) - 4y = 1

6y + 3 -4y = 1

2y + 3 = 1

collect the like terms

2y = 1- 3

2y= -2

divide both sides by  the coefficient of y which is y

2y/2 = -2/2

y = -1

put the value of y =-1 into equation 2

x=2y+1 ............................  equation 2

x = 2(-1) + 1

x = -2 + 1

x = -1

therefore x =-1 y = -1

3 0
4 years ago
I WILL MARK BRAINIEST <br> Give the arrow notation for a 270° rotation
Lelechka [254]

Convert from degrees to radians using the ratio  

π/180.  3aπ/2   radians

is this what you need?

or 90 degress

3 0
3 years ago
A new Community Center is being built in Alston. The perimeter of the rectangular playing field is 308 yards. The length of the
Blababa [14]

Answer:

regtangular Angeles

Step-by-step explanation:

398

6yeard and student gaf

4 0
4 years ago
I need help finishing RT. Please help. I do not know what to do. Any help will be appreciated:))
Advocard [28]

Answer:

RT = 86

Step-by-step explanation:

Here, we want to find the value of RT

looking at the given triangle, we can deduce that the smaller triangle SPQ is half the measure of the bigger triangle SRT

what this mean is that we have to multiply the dimensions on SPQ by 2 to get the equivalent dimensions of similar sides in SRT

Thus, we have it that;

2(15x -17) = 23x -6

30x - 34 = 23x -6

30x -23x = -6 + 34

7x = 28

x = 28/7

x = 4

So, we make a substitution

for RT;

23x-6

= 23(4) - 6 = 92-6 = 86

6 0
3 years ago
Question 2 (6 points)
alexdok [17]

Answer:

here

Step-by-step explanation:

it is basically a sector , use the area formula i.e.  

[(theta)/360]*πr^2

4 0
3 years ago
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