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3 years ago

PLEASE help really quick! (; Math problem.

Mathematics

1 answer:

Rufina [12.5K]3 years ago

6 0

Always remember rise over run, used to see what slopes are. In this case, rise over run would be -3/2, because the line is negative.

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Only blue and white vans are made at a factory. The ratio of the number of blue vans to the number of white vans is 4 : 3 write

amid [387]

Answer:

4/7

Step-by-step explanation:

Number of Blue vans = 4

Number of white vans = 3

Total number of vans = Number of Blue vans + Number of white vans

= 4 + 3

= 7 vans

Number of blue vans : Number of white vans = 4 : 3

Fraction of vans that are blue = Number of Blue vans / Total number of vans

= 4 / 7

Fraction of vans that are blue = 4/7

7 0

3 years ago

Below are two parallel lines with a third line intersecting them.

Basile [38]

Answer:

x=66⁰

Step-by-step explanation:

they are co interior angles,

180-114=66⁰

To check,

114+66=180

brainlist me?

8 0

2 years ago

Put y+7=1/2(x+2) in standard form <br> Standard form: Ax+By=C

My name is Ann [436]

$y+7=\frac{1}{2}(x+2)\ \ \ \ |multiply\ both\ sides\ by\ 2\\\\2y+14=x+2\ \ \ \ |subtract\ x\ and\ 2\ from\ both\ sides\\\\-x+2y+14-2=0\\\\-x+2y+12=0\ \ \ \ \ |change\ signs\\\\\boxed{x-2y-12=0}$

4 0

3 years ago

Find the values of a and b such that

Varvara68 [4.7K]

Answer:

a = 1.5

b = 1.75

Step-by-step explanation:

First, we need to solve $(x+a)^2$ and replace the result in the initial equation as:

$x^2+3x+4=(x+a)^2+b\\x^2+3x+4=x^2+2ax+a^2+b$

Then, this equality apply only if the coefficient of $x$ is equal in both sides and the constant is equal in both sides.

It means that we have two equations:

$3x=2ax\\4=a^2+b$

So, using the first equation and solving for a, we get:

$3x=2ax\\3=2a\\a=\frac{3}{2}=1.5$

Finally, replacing the value of a in the second equation and solving for b, we get:

$4=a^2+b\\4=1.5^2+b\\b=4-1.5^2\\b=4-2.25\\b=1.75$

3 0

3 years ago

Roberto invested money into two mutual funds. During the first year, Fund

Alexandra [31]

(a*.04)+(b*-.07)=total

3 0

3 years ago