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2 years ago

Help me plzzz i need hwlp

Mathematics

1 answer:

Anuta_ua [19.1K]2 years ago

3 0

Answer:

x = -2

Step-by-step explanation:

so how i would do it is

-4x + (-3) = -x +3 you would subtract 3 from the right side and add/ subtract it onto the left

then you have

-4x + (-6) = -x next you take the -4x and you would add it to the right side to get

-6 = 3x

lastly you divide -6 / 3 to get

x = -2

would love if i could have brainlist

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SYSTEM OF EQUATION WITH SUBSTITUTION

VMariaS [17]

Answer: x=6, y=4

Step-by-step explanation:

substitute y with (x-2) in the 1st equation

10x-9(x-2)=24

10x-9x+18=24

x+18=24

x=6

Then use 6 for x to solve for y

y=6-2

y=4

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3 years ago

Given: g(x)=1/x+2 and h(x)=3x Check all restrictions on the domain of gOh.

Vlad [161]

The composite function $(g \circle h)(x)$ works like this:

Take a number $x$ as input
Evaluate h(x) = 3x. Let's call this output z.
Evaluate g(x) = 1/(z+2)

So, if we substitute back z = 3x, the final output is 1/(3x+2). We know that the denominator of a fraction can't be zero, so we must impose

$3x+2 \neq 0 \iff 3x \neq -2 \iff x \neq -\dfrac{2}{3}$

3 0

2 years ago

Read 2 more answers

HELP I WILL MARK BRAINLIEST

nadezda [96]

When you divide by a fraction, flip the fraction over and change divide to multiply:

3/2 / 1/8 would become:

3/2 x 8/1

8/1 simplifies to 8

You get:

3/2 x 8 = 12

The answer is:

Three-halves times 8 = 12

4 0

2 years ago

A rectangle park measures 300 ft by 400 ft. A sidewalk runs diagonally from one comer to the opposite corner. Find the length o

DochEvi [55]

The length of side walk is 500 feet

Solution:

Given that, A rectangle park measures 300 ft by 400 ft

Length = 300 feet

Width = 400 feet

A sidewalk runs diagonally from one comer to the opposite corner

We have to find the length of side walk

Which means, we have to find the length of diagonal of rectangle

The diagonal of rectangle is given by formula:

$d = \sqrt{w^2+l^2}$

Where,

d is the length of diagonal

w is the width and l is the length of rectangle

Substituting the values in formula, we get

$d = \sqrt{400^2+300^2}\\\\d = \sqrt{160000+90000}\\\\d = \sqrt{250000}\\\\d = 500$

Thus length of side walk is 500 feet

5 0

3 years ago

If x=-7 is a root of the equation x^2+kx+49=0, then k=

aleksley [76]

Answer:

$k=14$

Step-by-step explanation:

Given:

$x^{2}+kx+49 = 0$

$x = -7$

Substitution can be used to find the value of $k$ :

$(-7)^{2}+(-7)k+49 = 0$

$49-7k+49 = 0$

$98 -7k = 0$

$k = 14$

Hope this helps :)

8 0

2 years ago