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4 years ago

Help me solve this worth 30

Mathematics

1 answer:

kirza4 [7]4 years ago

5 0

For the problem on the left, the correct choice is A.

For the problem on the right, the correct choice is B.

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Find the area of the rectangle

Hunter-Best [27]

Answer:

<h2>Option A = 1*3 = 3 unit² </h2>

$area \: of \: rectangle \: = length \: \times breath$

$length \: = distance \: between \: f \: and \: g \: or \: between \: e \: and \: h \:$

<h3>Distance between f and G = distance between E and H </h3>

F = (3,7)

G = (6,4)

H = (5,3)

E= (2,6)

= (3 units)

<h3>Distance between FE = GH </h3>

= 1 units

Area = 3* 1

= 3 units²

5 0

2 years ago

If (-1,4) and (3,-2) are end points of diameter of the circle, then the equation of the circle is

Volgvan

Answer:

If you've more doubts you can ask :)

Step-by-step explanation:

If the centre of a circle is (a, b) and radius r, then the equation of the circle is :

$(x - x)^2 + (y-b)^2 = r^2$

<em><u>First we will find the centre, (a , b): </u></em>

<em><u>Find radius:</u></em>

$Radius, r = \frac{Diameter}{2}$

Diameter is the distance between (-1, 4) and (3, -2)

$diameter = \sqrt{(x_2 - x_1)^2 +(y_2-y_1)^2} \\\\$

$= \sqrt{(3-(-1)^2 + (-2-4)^2} \\\\=\sqrt{16 + 36}\\\\=\sqrt{52}\\\\=\sqrt{4 \times 13}\\\\=2\sqrt{13} \ units$

Therefore , $r = \frac{2 \times \sqrt{13} }{2} = \sqrt{13} \ units$

<em><u>Equation of the circle is : </u></em>

$(x - 1)^2 +(y-1)^2 = 13$ <em><u></u></em>

4 0

3 years ago

What is the name of the expression under the radical symbol in a radical function?

vfiekz [6]

An expression is defined as a set of numbers, variables, and mathematical operations. The name of the expression under the radical symbol in a radical function is called a radicand.

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The radical is the symbol that is used to represent the root in the expression n√x. The name of the expression under the radical symbol in a radical function is called a radicand.

Learn more about Expression:

brainly.com/question/13947055

#SPJ1

5 0

2 years ago

Pls help fast its urgent

telo118 [61]

Answer: -8

Step-by-step explanation:

3 - (-8) = 3+8

3+ 8=11

6 0

3 years ago

8. You are paid a commission plus $5.40 per hour with time and a half overtime

Elanso [62]

9514 1404 393

Answer:

$491.65

Step-by-step explanation:

The pay for the first 8 hours is $5.40 per hour × 8 hours = $43.20. Hours over 8 are paid at 1.5 × $5.40 = $8.10 per hour. There are at least 8 hours every day for the 6-day week. There are hours over 8 on Monday, Wednesday, Thursday, and Friday totaling 7 hours of overtime.

The amount of sales is more than $3000, so 4% will be paid on $3000, and 5% will be paid on the $1115 in excess of $3000.

So, the gross pay is ...

$43.20 × 6 + 8.10 × 7 = $315.90 . . . . wages

$3000 × .04 +1115 × .05 = $175.75 . . . commission

$315.90 +1.75.75 = $491.65 . . . . gross pay for the week

_____

It can be less tedious to let a spreadsheet do the calculations.

6 0

3 years ago