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3 years ago

The rule g = b + 3 expresses the relationship between the

Mathematics

2 answers:

Pani-rosa [81]3 years ago

6 0

Answer:

g = 3 + b

b + 3 = g

3 + b = g

Step-by-step explanation:

jeka57 [31]3 years ago

3 0

Answer:

[see below]

Step-by-step explanation:

Rewriting the rule so 'b' would be the subject:

$g = b + 3\\\\g - 3 = b + 3-3\\\\g-3=b\\\\\boxed{b=g-3}$

Hope this helps.

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If x=3.491 and y= 7.342 what does x equal when y= 349,439

posledela

Answer:

x = 166,152

Step-by-step explanation:

x = 3.491

y = 7.342

x =?

y = 349,439

therefore,

3.491/x = 7.342/349439

1,219,891.549 = 7.34x

divide through 7.34 and make subject

x = 166,152

7 0

3 years ago

−1/3−(−1/2)

Radda [10]

Hi ;-)

$-\frac{1}{3}-(-\frac{1}{2})=-\frac{1}{3}+\frac{1}{2}=-\frac{2}{6}+\frac{3}{6}=\frac{3}{6}-\frac{2}{6}=\frac{1}{6}\\\\3\frac{1}{3}-5=-(5-3\frac{1}{3})=-(4\frac{3}{3}-3\frac{1}{3})=-1\frac{2}{3}\\\\-1\frac{4}{5}-(-2\frac{7}{8})=-1\frac{4}{5}+2\frac{7}{8}=-1\frac{32}{40}+2\frac{35}{40}=2\frac{35}{40}-1\frac{32}{40}=1\frac{3}{40}\\\\-3\frac{3}{8}-\frac{7}{8}=-(3\frac{3}{8}+\frac{7}{8})=-3\frac{10}{8}=-3\frac{5}{4}=-4\frac{1}{4}\\\\4\frac{3}{4}-(-1\frac{1}{12})=4\frac{9}{12}+1\frac{1}{12}=5\frac{10}{12}$

6 0

3 years ago

Derive the equation of the parabola with a focus of (-5,-5) and a directrix of y=7.

adoni [48]

Answer:

$y=-\frac{1}{24}(x+5)^2+1$

Step-by-step explanation:

The given parabola has its focus at (-5,-5) and the directrix is at: y=7.

The equation of such parabola is given by the formula:

$(x-h)^2=-4p(y-k)$

The vertex of the parabola is the midpoint of (-5,-5) and (-5,7).

$(\frac{-5+-5}{2},\frac{-5+7}{2} )=(-5,1)$

The value of p is the distance from the (-5,-5) to (-5,1).

p=|1--5|=6

We substitute the values of the vertex and p into the equation to get;

$(x--5)^2=-4(6)(y-1)$

$(x+5)^2=-24(y-1)$

$y=-\frac{1}{24}(x+5)^2+1$

3 0

3 years ago

One week, the ratio of pounds of apples to pounds of oranges sold at a market was 3:8. Twelve pounds of apples were sold. how ma

Minchanka [31]

3 : 8....can be written as 3/8
12 lbs of apples were sold

apples / oranges : 3/8 = 12/x
this is a proportion, so we cross multiply
(3)(x) = (12)(8)
3x = 96
x = 96/3
x = 32 <=== 32 lbs of oranges

notice that 3/8 = 12/32....these are equivalent fractions....because that is what proportions are, equivalent fractions

5 0

3 years ago

Does 2/5 round to 1/2

ELEN [110]

It does if you're rounding to the nearest 1/2 .

8 0

3 years ago