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3 years ago

How do I write The sum of y and product of 7 and x

Mathematics

1 answer:

Cerrena [4.2K]3 years ago

3 0

Answer:

The product of x and y would be (8)(-1) = -8. by adding the two equations you get 2x = 16 so x = 8. then y = 7 - x = -1. Therefore xy = -8.

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A. Find the unit price for each option shown below. Found to the nearest cent when necessary.

jek_recluse [69]

$6.75/10 = $.68 per option 1

$7.25/12 = $.60 per option 2

Option 2 is the better buy

3 0

3 years ago

The law of Cosines Is......

iogann1982 [59]

Answer: $\Large\boxed{C.~21}$

Step-by-step explanation:

The goal of the question

Find the value of 2abcosC

Given information

a = 4

b = 3

c = 2

Given formula (Law of Cosine)

$c^2=a^2+b^2-2abcosC$

Substitute values into the formula (Leave 2abcosC as it is)

$(2)^2=(4)^2+(3)^2-2abcosC$

Simplify the exponents

$4=16+9-2abcosC$

Simplify by addition

$4=25-2abcosC$

Add 2abcosC on both sides

$4+2abcosC=25-2abcosC+2abcosC$

$4+2abcosC=25$

Subtract 4 on both sides

$4 + 2abcosC-4=25-4$

$\Large\boxed{2abcosC=21}$

Hope this helps!! :)

Please let me know if you have any questions

5 0

2 years ago

Read 2 more answers

The price of Phillips favorite candy has been reduced by 15 cent per piece. Philips buys 14 pieces and spend $3.22 what is the r

Tamiku [17]

Well, if we divide 3.22 by 14 we get 0.23
0.23 +0.15 is 0.38
the answer would be $0.38

8 0

3 years ago

Help me with this please

aniked [119]

It's the last answer. Think about when you move a point on a graph left 4 spaces it's on the x axis. Because it's going left it's going towards the negative numbers hence minus and not plus. some concept for the y axis.

4 0

3 years ago

Find the measure of angle B

amid [387]

Answer:

64°

Step-by-step explanation:

Angles in a straight line add up to 180° so 180° - 116° = 64°

7 0

3 years ago