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3 years ago

ANSWER FOR LOTS OF POINTS

Mathematics

1 answer:

victus00 [196]3 years ago

3 0

Answer:

4 >=x

x > 2

Step-by-step explanation:

x+5 >= 2x+1

subtract x from each side

x+5 -x>= 2x+1 -x

5>= x+1

subtract 1 from each side

5-1 >=x+1-1

4 >=x

-4x < -8

divide by -4 ( remember when multiplying or dividing by a negative flip the inequality)

-4x/-4 > -8/-4

x > 2

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write an equation of the perpendicular bisector of the line segment whose endpoints are (-1,1) and (7,-5)

gladu [14]

Find midpoint of segment.
(-1,1), (7,-5)
$x= \frac{-1+7}{2}=3,y= \frac{1+(-5)}{2}=-2$

Find slope of line which passes through (-1,1) and (7,-5).
$m= \frac{-5-1}{7-(-1)}= \frac{-6}{8}=- \frac{3}{4}$

The slope of perpendicular line is negative reciprocal value of m.
$m_{\perp}=- \frac{1}{m} =- \frac{1}{- \frac{3}{4} } = \frac{4}{3}$

Write quation of line which slope is $\frac{4}{3}$ and passes throug the point (3,-2).
$m=\frac{4}{3},x_1=3,y_1=-2
\\y-y_1=m(x-x_1)
\\
\\y-(-2)=\frac{4}{3}(x-3)
\\
\\y+2=\frac{4}{3}x-\frac{8}{3}
\\
\\3y+6=4x-8
\\4x-3y-14=0$

3 0

2 years ago

Which equation represents 4x – 3y = 15 when solved for y

andrey2020 [161]

Answer:

y=4/3x-5

Step-by-step explanation:

4x-3y=15

-4x -4x

______________

-3y=-4x+15

---- --- ---- (divide all by -3)

-3 -3 -3

y=4/3x-5

5 0

2 years ago

*I WILL MARK YOU BRAINLIEST!!!!!*

AlekseyPX

<h2> Answer:</h2>

-3

Explanation:

Rate of change in the interval

X=0 to X=3 is given by,

 $r = \frac{f(3) - f(0)}{3 - 0} \\ here \\ f(3) = 1 \\ f(0) = 10 \\ r = \frac{1 - 10}{3} \\ \: \: \: = \frac{ - 9}{ 3} \\ \: \: \: \: = - 3 \\ hope \: it \: helps.....$ 

4 0

3 years ago

Mrs. Rodriguez is going to use 6 1/3 yards of material to make two dresses . the large dress requires3 2/3 yards of material. ho

Dmitry_Shevchenko [17]

Answer:

She has 6 1/3. The larger dress need 3 2/3. So 6 1/3 - 3 2/3 = 2 2/3

So Mrs. Rodriguez will need 2 2/3 for the smaller dress

Step-by-step explanation:

7 0

3 years ago

A student earns $11.75 per hour for gardening. if she worked 21 hours this month, then how much did she earn? show work

ankoles [38]

Answer:

$246.75

Step-by-step explanation:

A student earns $11.75 for 1 hour

If she works for 21 hours this month then the total amount earned can be calculated as follows

= 11.75 × 21

= 246.75

Hence the total amount earned this month is $246.75

4 0

2 years ago