All categories

3 years ago

Enter the x-coordinate of the solution to this system of equations

Mathematics

1 answer:

Kitty [74]3 years ago

5 0

Answer:

equation 2into minus 3 into equation 1

8x+ 3y= -28

-3x-3y=18

----------------

5x=10

x =2

put value of y in equation 2

8 into 2+3y=-28

16+3y= -28

3y= -28+16

3y= -12

y= -4

You might be interested in

What is the inverse of f(x)=x^4+7 for x>0 where function g is the inverse of function f?<br> -

Ann [662]

Answer:

$g(x) = \sqrt[4]{x-7},~ x\geq 7$

Step by step explanation:

$y= f(x) = x^4+7\\\\\text{Replace x with y and solve for y:}\\\\~~~~~~~x = y^4 +7\\\\\implies y^4 = x-7\\\\\implies y = \pm\sqrt[4]{x-7}\\\\ \implies f^{-1}(x) = \pm\sqrt[4]{x-7}$

7 0

2 years ago

If DGH ~ DEF, Find the value of X

DIA [1.3K]

Answer:

$x=25$

Step-by-step explanation:

we know that

DGH ~ DEF ---> given problem

Remember that

If two triangles are similar, then the rtio of its corresponding sides is proportional and its corresponding angles are congruent

$\frac{DG}{DE}=\frac{GH}{EF}$

substitute the given values

$\frac{52}{91}=\frac{x+3}{2x-1}$

$(2x-1)52=(x+3)91\\104x-52=91x+273\\104x-91x=273+52\\13x=325\\x=25$

4 0

3 years ago

I Need help please :>

Bezzdna [24]

1. What is the total mass of the items in the wheel barrow?
9300g

2. What’s the mass of items, in kg, left in the barrow?
4.9kg

5 0

3 years ago

Help I need someone smart

Neporo4naja [7]

Answer:

ID => 657 824 8085

PA => 12345

[Only - Girls]

On Z-O-OM App

4 0

3 years ago

What number is 13% of 52

MaRussiya [10]

$13 \% \ of \ 52= \frac{13}{100}*52= 13*0.52= \boxed{6.76}$

7 0

3 years ago