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2 years ago

Pleaseeee help meenpleaseeee!!!!!!!!

Mathematics

1 answer:

Iteru [2.4K]2 years ago

3 0

Answer:

-5/4

Step-by-step explanation:

4x-5y=10

-5y=-4x-10

-5y/-5=-4/-5-10/-5

y=4/5+2

perpendicular slope is -5/4

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A shoe store was having a back to school sale were you could buy 6 pairs of shoes for 52.62 If a large family decided to buy 3 p

Black_prince [1.1K]

Answer:

$26.31

Step-by-step explanation:

Since 3 is half of 6, 3 pairs of shoes would cost half the price.

So...

52.62/2=$26.31

6 0

3 years ago

On a coordinate plane, parallelogram R S T U is shown. Point R is at (1, 1), point S is at (7, 0), point T is at (10, 4), and po

ira [324]

Answer:

B,5.4 units.

Step-by-step explanation:

Parallelogram RSTU

R(1,1),S(7,0),T(10,4),U(4,5)

slope of RU m=(5-1)/(4-1)=4/3

slope of RS=(0-1)/(7-1)=-1/6=-1/6

slope of ST=(4-0)/(10-7)=4/3

slope of TU=(5-4)/(4-10)=1/(-6)=-1/6

RU||ST

eq. of line RU is

y-y1=m(x-x1)

y-1=4/3(x-1)

3y-3=4x-4

4x-3y-4+3=0

4x-3y-1=0

perpendicular distance of a point (x1,y1) from line ax+by+c=0 is

$d=\frac{ax1+by1+c}{\sqrt{a^2+b^2} } \\$

perpendicular distance of (7,0) from 4x-3y-1=0

$d=\frac{4(7)-3(0)-1}{\sqrt{4^2+(-3)^2} } \\=\frac{28-1}{\sqrt{16+9} }\\=\frac{27}{5} \\=5.4~units$

6 0

3 years ago

Read 2 more answers

Ariel spent a total of $3.42 buying dried apricots from the bulk bins, which were on sale for $2.85 per pound. To the nearest te

Over [174]

Answer:

1.2

Step-by-step explanation:

Just do 3.42/2.85 and u get 1.2 pounds.

5 0

3 years ago

Read 2 more answers

The two triangles below are similar. What is the ratio of the corresponding side lengths? 4:9 4:2 26:26 4.5:2

MrRa [10]

Answer:

4 : 2

Step-by-step explanation:

We are given ΔABC ≅ ΔA'B'C'.

When two triangles are congruent, their corresponding sides and angles are congruent.

Since, the sides of the triangles are in relation,

AB = 2 × A'B' and side BC = 2 × B'C' i.e. 4 = 2 × 2 and 9 = 2 × 4.5.

Therefore, the ratio of the corresponding sides are given by 4 : 2 and 9 : 4.5 i.e. 2 : 1.

Since, the ratio of the corresponding sides comes out to be 2 : 1 = 4 : 2.

Hence, the ratio of the corresponding sides is 4 : 2.

8 0

3 years ago

Read 2 more answers

Determine whether the three points are collinear. (3, -10), (-2, -7), (0, -5)

Mumz [18]

The points are not collinear.

Solution:

Let A, B and C be (3, -10), (-2, -7) and (0, -5).

If slopes of any two points are same, then the points are collinear.

Slope formula:

$$m=\frac{y_2-y1}{x_2-x_1}$

Slope of AB:

$$m_1=\frac{-7-(-10)}{-2-3}$

$$m_1=\frac{-7+10}{-5}$

$$m_1=-\frac{3}{5}$

Slope of BC:

$$m_2=\frac{-5-(-7)}{0-(-2)}$

$$m_2=\frac{-5+7}{2}$

$$m_2=\frac{2}{2}$

$m_2=1$

Slope of CA:

$$m_3=\frac{-10-(-5)}{3-0}$

$$m_3=\frac{-10+5}{3}$

$$m_3=-\frac{5}{3}$

$m_1\neq m_2 \neq m_3$

Slope of AB ≠ Slope of BC ≠ Slope of AC

Therefore the points are not collinear.

6 0

3 years ago