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3 years ago

I need help ont his question

Mathematics

1 answer:

Ivahew [28]3 years ago

3 0

Answer:x^2-y^2

Step-by-step explanation:

(x+y)(x-y) = x^2 -xy +xy -y^2 so it becomes x^2-y^2

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What is the distance between points B and C

Alborosie

Answer:

Step-by-step explanation:

I hope this helps

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3 0

3 years ago

What value of y makes the equation true? -7/12=y/-36

STALIN [3.7K]

-7/12=y/-36
times both sides by -36 (-36=12*-3)
-3*-7=y
21=y

y=-21

7 0

3 years ago

Jo had $5 more than Nate and together they had $43. How much did Nate have?

Andru [333]

Answer:

Step-by-step explanation:

43-5

=$38

38/2=19

Nate has $19

hope this helps!

6 0

3 years ago

Read 2 more answers

A local store makes and sells handmade ceramic cookware. The store earns profit of one dollar more on each plate sold than it ea

Gre4nikov [31]

The equation for profit is expected to be
  daily profit = (profit on plate)*(number of plates) +(profit on cup)*(number of cups)

We are told that
  profit on plate = k
  profit on cup = k-1
Matching these to the expression above, we find
  x = number of plates
  y = number of cups

You are asked what y represents. It is
  A. The number of cups sold in one day.

6 0

3 years ago

Find (a) the arc length and (b) the area of a sector.

Brut [27]

Answer:

a) 23.56 ft (2 dp)

b) 58.90 ft² (2 dp)

Step-by-step explanation:

Formula

$\textsf{Arc length}=r \theta$

$\textsf{Area of a sector}=\dfrac{1}{2}r^2 \theta$

$\quad \textsf{(where r is the radius and}\:\theta\:{\textsf{is the angle in radians)}$

Calculation

Given:

$\theta=\dfrac{3 \pi}{2}$
r = 5 ft

$\begin{aligned}\implies \textsf{Arc length} & =r \theta\\& = 5\left(\dfrac{3 \pi}{2}\right)\\& = \dfrac{15}{2} \pi \\& = 23.56\: \sf ft\:(2\:dp)\end{aligned}$

$\begin{aligned} \implies \textsf{Area of a sector}& =\dfrac{1}{2}r^2 \theta\\\\ & = \dfrac{1}{2}(5^2) \left(\dfrac{3 \pi}{2}\right)\\\\& = \dfrac{25}{2}\left(\dfrac{3 \pi}{2}\right)\\\\ & = \dfrac{75}{4} \pi \\\\& = 58.90 \: \sf ft^2\:(2\:dp)\end{aligned}$

6 0

3 years ago