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3 years ago

PLZZZZ HELP ME WITH THIS QUESTION WITH AN EXPLANATION

Mathematics

1 answer:

astraxan [27]3 years ago

6 0

Answer :

Given : A and B are complementary angles. B and C are complementary angles.

Prove : A C

I have attached a picture of me doing it. Hope this helps, thank you :) !!

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A jeweler is making a triangular pendant. He has two sides of length 23 mm and 31 mm. What are the

denis-greek [22]

Answer:

38.60mm

Step-by-step explanation:

Step one:

Given data

We are given that the dimension of the triangles are length 23 mm and 31 mm

Let us assume that the triangle is a right angle triangle

Step two:

Applying the Pythagoras theorem we can find the third as

$z^2= x^2+y^2\\\\z^2= 31^2+23^2\\\\z^2= 961+529\\\\z^2= 1490\\\\$

square both sides

z= √ 1490

z= 38.60mm

Hence a possible dimension of the third side is 38.60mm

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3 years ago

What is the coefficient of the x9y-term in the binomial expansion of (2y + 4x3)4?

Strike441 [17]

The answer to your question is D. 512

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3 years ago

Read 2 more answers

Wbt do i multiply 7 by to get 21 or the first number they both have the same?

zzz [600]

7*3=21....The first number they would both share would be 7

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3 years ago

Does it pay to ask for a raise? A national survey of heads of households showed the percentage of those who asked for a raise an

denis-greek [22]

Answer:

0.132

Step-by-step explanation:

p(received raise and asked for one) = p(received raise | asked for one) * p(asked for one)

p(received raise and asked for one) = 0.24 X 0.55 = 0.132

8 0

3 years ago

I just need help explaining it. solve the system of equation

Maksim231197 [3]

SOLUTION

Write out the equation

$\begin{gathered} y=\frac{1}{3}x-3 \\ 5x-3y=-3 \end{gathered}$

To solve this system of equation, the aprropriate method will be substitution

Substitute the expression for y into the second equation for y, we have

$5x-3(\frac{1}{3}x-3)=-3$

Expand the paranthesis we have

$\begin{gathered} 5x-x+9=-3 \\ \text{Simplify},\text{ by subtracting 9 from both sides } \\ 4x+9-9=-3-9 \\ 4x=-12 \end{gathered}$

Divide both sides by 4, we have

$\begin{gathered} \frac{4x}{4}=-\frac{12}{4} \\ \text{Then} \\ x=-3 \end{gathered}$

Since the value of x has been obtained, we substitute into the first equation

$\begin{gathered} y=\frac{1}{3}x-3 \\ \text{ recall x=}-3 \\ y=\frac{1}{3}(-3)-3 \\ y=-1-4 \\ \text{Hence } \\ y=-4 \end{gathered}$

Therefore

x = -3, y= -4

6 0

1 year ago