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3 years ago

Y = 4x - 2 y = x + 3

Mathematics

1 answer:

mihalych1998 [28]3 years ago

3 0

Answer:

Step-by-step explanation:

x = 1

(x^2-4x+3=0 or sin(x)=1)

x = 1

( x^2-4x+3=0 or sin(x)=1)

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What is √7 rounded to the nearest hundredth?

Rama09 [41]

Answer:

2.64

Step-by-step explanation:

The sqhate root of 7 is 2.64575131106. Usually this would be 2.64 when rounded to nearest hundredth.

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3 years ago

The number of feet in an unknown

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There are 3feet in one yard.

Let B = number of feet

Let Y = number of yards

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2 years ago

The roots of x2 − ( ) + 34 are 5 ± 3i.

Angelina_Jolie [31]

Use quadratic formula
if you had ax^2+bx+c=0, then
x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$
a=1
b=?
c=34
subsitute
$\frac{-b+/- \sqrt{b^{2}-4(1)(34)} }{2(1)}$ =5+/-3i
$\frac{-b+/- \sqrt{b^{2}-136} }{2}$ =5+/-3i
make 5+/-3 into fraction over 2,(10+/-6i)/2
$\frac{-b+/- \sqrt{b^{2}-136} }{2}$ =(10+/-6i)/2
multiply both sides by 2
$-b+/- \sqrt{b^{2}-136}$ =10+/-6i
we conclude that -b=10
b=-10

ok so equaton is
x^2-10x+34

5 0

3 years ago

Read 2 more answers

HELP PLEASE!!!!!! I need help Urgent Help

gavmur [86]

This is just a porportion. So if 250 meters is 1 meter than: 250/1

And it wants to know the height. So we have the first number but not the second. So we'll use x: 212/x

Set them equal to each other 250/1=212/x

Cross multiply: 212=250x

Divide to find x: 212/250=x
x=212/250
x=0.848

So the height of the model, to the nearest 10th would be 0.8 meters.

5 0

3 years ago

Which of the following equations are linear? (choose all that apply)

lions [1.4K]

Answer:

yes

Step-by-step explanation:

yes y = 2x + 1

yes 5x = 6 + 3y

yes y/2 = 3 − x

7 0

3 years ago