MATHEMATICS HIGH SCHOOL

What do a rectangle and a rhombus have in common? Select all that apply.The opposite sides are parallel.
They have four right angles.
Their angle measures add to 360°.
They have four congruent sides.

Answers

Answer 1
Answer: The opposite sides are parallel.
Their angle measures add to 360°

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To break even in a manufacturing​ business, income or revenue R must equal the cost of production C. The revenue R from selling x number of computer boards is given by R=40x​, and the cost C of producing them is given by C=30x+1000. Find how many boards must be sold to break even. Find how much money is needed to produce the​ break-even number of boards.

True or False. A sinusoid is a function whose values repeat based on positions of a point that moves around a circle.

Answers

The correct answer is:

True.

Explanation:

A sinusoidal function is based on the sine function, or sine wave.

The sine wave repeats based on its period. The period of the sine function is 2π, or 360°. Depending on the transformations applied to the function, the period of the transformed function may be different, but will always be based around this idea of repeating every 2π radians.

Since 2π = 360°, this corresponds with a circle. This means the graph repeats based on positions of a point that move around a circle.

Answer:

True

Step-by-step explanation:

A.P.E.X.

Can anyone plz help me plz this is the only question am asking ??:(

Answers

I think it is 1/7(3) but if I am wrong then sorry:)

Can someone please solve 10n - 3 = 7n + 21

Answers

10 n-3 = 7n+21

Add 3 to both sides :

10n-3+3=7n+21+3

10n=7n+24

Subtract  7 n from both sides:

10n-7n=7n+24-7n

3n=24

Divide both sides by 3 :

(3n)/(3) = (24)/(3)

n = 8

hope this helps!

The lengths of the bases of the right trapezoid are 9 cm and 18 cm. The length of a longer leg is 15 cm. Find the area of the trapezoid.

Answers

Firstly, we will draw figure

now, we will draw a altitude from B to DC that divides trapezium into rectangle and right triangle

because of opposite sides of rectangle ABMD are congruent

so,

DM=AB=9

CM=CD-DM

CM=18-9

CM=9

now, we can find BM by using Pythagoras theorem

BM=√(BC^2-CM^2)

now, we can plug values

we get

BM=√(15^2-9^2)

BM=12

now, we can find area of trapezium

A=(1)/(2) (AB+CD)*(BM)

now, we can plug values

and we get

A=(1)/(2) (9+18)*(12)

A=162cm^2

so, area of of the trapezoid is 162cm^2..........Answer

Which statement is true about the similarity of two squares of different sizes ABCD and WXYZ?A) ABCD can be carried onto WXYZ using only dilation.
B) ABCD can be carried onto WXYZ using only rotation.
C) ABCD can be carried onto WXYZ using only reflection.
D) ABCD can be carried onto WXYZ using only translation.

Answers

Answer:

the correct A

Step-by-step explanation:

Answer: A) ABCD can be carried onto WXYZ using only dilation.

Step-by-step explanation:

Which multiplication has a negative answer?A) (-1)(-1)
B) (-1)(-1)(-1)(-1)
C) (-1)(-1)(-1)(-1)(-1)
D) (-1)(-1)(-1)(0)

Answers

To find out quickly if multiplication will be positive or negative,  count the number of negative signs in each equation. If it comes out even,  it is positive.  If odd, it will come out negative.  Only exception is when 0 is in the mix.  First equation has 2,  therefore is positive because even.  Second has 4,  which is another positive because even.  3rd is 5, which is negative because it is odd and has NO 0.  4th has 0.

C is the answer and I hope this helped.
The answer is C. because when you multiply,exponents  [-1][-1][-1][-1][-1]. the answer results in the exponent -1.hope i helped
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