2 years ago

Let x be a real number satisfying the condition : √x²-9 · √x²-1 = 2x+3

Mathematics

1 answer:

Andreyy892 years ago

5 0

Answer:

x= 2

1 =0.5

x=0

Step-by-step explanation:

You might be interested in

Could Someone PLEASE help me with this it is stumping me.

Bess [88]

9514 1404 393

Answer:

G 45

Step-by-step explanation:

If Z is the circumcenter, it is equidistant from the vertices T, U, V. That is, ΔZUV is an isosceles triangle and Y is the midpoint of UV.

If Y is the midpoint of UV, then UY = VY = 22.5, and UV = UY +VY = 45.

The length of UV is 45.

4 0

3 years ago

Ms. Lee, a single adult, earned $65,000 in taxable income last year. Use the rate table below to calculate how much she must pay

Nookie1986 [14]

I think $16,250 tax. If you need explanation comment

4 0

3 years ago

Please help, this will just take a minute of your time ❤︎ (literally)<br>(Discriminant Worksheet)

igomit [66]

Answer:

$\large\boxed{x=-\dfrac{7-\sqrt{97}}{4}\ \vee\ x=-\dfrac{7+\sqrt{97}}{4}}$

Step-by-step explanation:

$ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\\text{if}\ \Delta0,\ \text{then an equation has two solutions:}\ x=\dfrac{-b\pm\sqrt\Delta}{2a}\\\\\text{We have:}\\\\-2x^2-7x+10=4\qquad\text{subtract 4 from both sides}\\\\-2x^2-7x+6=0$

$a=-2,\ b=-7,\ c=6\\\\\Delta=(-7)^2-4(-2)(6)=49+48=97>0\\\\\sqrt\Delta=\sqrt{97}\\\\x=\dfrac{-(-7)\pm\sqrt{97}}{2(-2)}=\dfrac{7\pm\sqrt{97}}{-4}=-\dfrac{7\pm\sqrt{97}}{4}$

6 0

3 years ago

Substitution method<br> x=2y<br> 2x+5y=4

Dvinal [7]

Answer:

y=4/9

Step-by-step explanation:

Substitute 2y into the x

2(2y)+5y=4

4y+5y=4

9y=4

y=4/9

6 0

3 years ago

Solve 3x−5 = 9. Not sure what to do

choli [55]

Answer:

x= 14/3

That's the answer :)

3 0

3 years ago

Read 2 more answers