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3 years ago

i have been struggling with this question for 30mins. if you answer it can you please show work? thank you

Mathematics

1 answer:

3241004551 [841]3 years ago

8 0

Answer:

a)22

Step-by-step explanation:

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A school administrator bought 6 desk sets. Each set consists of one table and one chair. He paid $48.50 for each chair. If he pa

zloy xaker [14]

Answer: The cost of each table was $62

Step-by-step explanation:

$48.50 x 6

= $291 this is the total cost of the chairs

$663 - $291

= $372 this is the overall cost of the tables

$372 ÷ 6

= $62 this is the cost of each table

5 0

2 years ago

Hi pls help me!!! thank you

elena-s [515]

Step-by-step explanation:

Circumference (C):

$C = 2\pi r = 2\pi(5\:\text{ft}) = 31.4\:\text{ft}$

Area (A):

$A = \pi r^2 = \pi(5\:\text{ft})^2 = 78.5\:\text{ft}^2$

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3 years ago

Which equation has no real solutions?

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3 years ago

Explain how to derive a formula for sin(A - B + C)

Akimi4 [234]

$\textit{Sum and Difference Identities} \\\\ sin(\alpha - \beta)=sin(\alpha)cos(\beta)- cos(\alpha)sin(\beta) \\\\ cos(\alpha - \beta)= cos(\alpha)cos(\beta) + sin(\alpha)sin(\beta) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ sin(A-B+C)\implies sin[~(\stackrel{Z}{A-B})~+C]\implies sin(Z+C) \\\\\\ sin(Z)cos(C)+cos(Z)sin(C)\implies sin(A-B)cos(C)+cos(A-B)sin(C) \\\\[-0.35em] ~\dotfill\\\\ \textit{and since we know that}\\\\ sin(A-B)\implies sin(A)cos(B)-cos(A)sin(B)$

$cos(A-B)\implies cos(A)cos(B)+sin(A)sin(B)\\\\ then \\\\[-0.35em] ~\dotfill\\\\\ [sin(A)cos(B)-cos(A)sin(B)]cos(C)+[cos(A)cos(B)+sin(A)sin(B)]sin(C) \\\\\\ ~\hfill \begin{array}{cllll} sin(A)cos(B)cos(C)-cos(A)sin(B)cos(C)\\\\ +\\\\ cos(A)cos(B)sin(C)+sin(A)sin(B)sin(C) \end{array}~\hfill$

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2 years ago

Need help with math pls help me will mark brainiest.

saw5 [17]

Answer:

The slope is $\frac{-1}{3}$ .

Step-by-step explanation:

Math Vocabulary Values

Vertical Change -1

Horizontal Change 3

Slope $\frac{-1}{3}$

8 0

3 years ago

i have been struggling with this question for 30mins. if you answer it can you please show work? thank you ​

i have been struggling with this question for 30mins. if you answer it can you please show work? thank you