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3 years ago

Please helpppp due tomarrow very easy

Mathematics

2 answers:

Ivan3 years ago

5 0

b=12 for the last one

r-ruslan [8.4K]3 years ago

3 0

Answer:

6b+37

Step-by-step explanation:

$6b+30+7$

Since there is a parenthesis, you must get rid of it. You multiply the number in front of the parenthesis and you will get:

$6b+30+7$

You cannot add a variable and a number, but you can add a number to a number so, you will get the answer

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a cell phone company charges $42 per month of service the cost of a new cell phone plus 8 months of service is $415.99 how much

salantis [7]

1247.97 so you have to skip count

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3 years ago

if the breadth of rectangle in one third of its length and perimeter is 80 cm find length and breadth of rectangle

LiRa [457]

Answer:

length = 30 cm

Breadth = 10 cm

Step-by-step explanation:

Length = x cm

Breadth = (1/3)x

Perimeter = 80 cm

2(length + breadth) = 80

2* (x + (1/3)x) = 80

$2*(\frac{3}{3}x+\frac{1}{3}x) = 80\\\\2*(\frac{4}{3}x) = 80\\\\\frac{8}{3}x = 80\\\\x = 80*\frac{3}{8}\\\\x = 10*3$

x = 30cm

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breadth = $\frac{1}{3}*30=10$ cm

6 0

3 years ago

Please help !! Geometry homework. Will mark brainliest answer !

sergeinik [125]

For this case we have:

By trigonometric property we have:

$Cosine(\alpha)=\frac{AdjacentLeg}{Hypotenuse}$

Where:

$Adjacent Leg = 12\\Hypotenuse = 13\\\alpha= x$

Substituting:

$Cosine(x)=\frac{12}{13}$

Clearing x we have:

$x =Cosine^{-1}(\frac{12}{13})$

Thus, the equation is: $x =Cosine^{-1}(\frac{12}{13})$

Answer:

$x =Cosine^{-1}(\frac{12}{13})$

3 0

3 years ago

I need serious answers ppl keep putting those links

ohaa [14]

Answer:

Roman

Step-by-step explanation:

An easy way to solve this is looking at whether the line has a positive or negative slope. We read graphs from left to right so <u>if the line is increasing from left to right, it has a positive slope while a line decreasing from left to right has a negative slope</u>. Since the line shown is decreasing from left to right, it will have a negative slope and Roman is the only one out of the two that shows a negative slope. To check to see if he's correct, we can check the y-intercept. The y-intercept of the line is 8 and Roman also has 8 written in the expression. Hence, meaning Roman is correct.

Best of Luck!

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3 years ago

An entrepreneur is having a design group produce at least eight samples of a new kind of fastener that he wants to market. It co

DerKrebs [107]

Answer:

Step-by-step explanation:

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3 years ago