All categories

3 years ago

Does any one know this i need help!!!

Mathematics

1 answer:

Ber [7]3 years ago

5 0

Answer:

7(x)=5x+7

to find the x / zero intercept, plug in f (x) = 0

0=5x+7

move the left side and change the sign

-5x7

divide both of the equation by -5

x= $-\frac75$

same steps for g(x)=-2x-4

x=-2

You might be interested in

You are watching an airplane fly in the distance.The airplane is traveling at altitude of 8 kilometers How far is the airplane f

kotykmax [81]

Answer:

8 km I didn't understand what you are asking

5 0

3 years ago

Read 2 more answers

Define a variable, write an equation and solve: An investment increased 30% before taxes. $200 was withdrawn to pay taxes and th

strojnjashka [21]

Answer:

$1307.69

Step-by-step explanation:

Let the original investment be x.

Note that a 30% increase in a value is equal to multiplying a value by 130% and a withdrawal is to take out money. The final amount is $1500. Let’s write the equation with the information we have.

Equation:

130%x - 200 = 1500

(130/100)x = 1700

x = 1700(100/130) = $1307.69

I hope this helps! :)

7 0

3 years ago

Which sequence shows the number in order from least to greatest?<br>please help

Mnenie [13.5K]

Answer: A

Explanation:

The square root of 45 is 6.70
_
8 5/6 as a decimal is 8.83

The absolute value of -23 is 23.

4 0

3 years ago

If c not equal be a rational number and d be an irrational number. then c×d is

melamori03 [73]

When you multiply a rational and an rational you always get an irrational. answer 3

8 0

3 years ago

15 POINTS... NEED HELP! Write an equation in point-slope form of a line which is perpendicular to x + 5y = 5 and passes through

earnstyle [38]

Answer:

y + 1 = 5(x - 10)

Step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the t-intercept )

rearrange x + 5y = 5 into this form ( subtract x from both sides )

5y = - x + 5 ( divide all terms by 5 )

y = - $\frac{1}{5}$ x + 1 ← in slope- intercept form

with slope m = - $\frac{1}{5}$

given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{-1/5}$ = 5

using m = 5 and (a, b) = (10, - 1), then

y + 1 = 5(x - 10) ← in point- slope form

4 0

3 years ago