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3 years ago

A B C or D need asap please

Mathematics

2 answers:

ArbitrLikvidat [17]3 years ago

7 0

Answer:

Inverse property of multiplication

Step-by-step explanation:

The product of any number and its reciprocal equals 1. In this case, -¹/₄ flipped would be -⁴/₁ or just -4. This would be the reciprocal.

~Hope this Helps!~

Paladinen [302]3 years ago

3 0

Answer:multiplication property of -1

Step-by-step explanation:

because it is muliplying by negatives

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P(x)+p(x+3)=10x-7 find p(3)

makvit [3.9K]

Answer:

Simplify each term.

Px+px+3p=10x−7

Move all terms not containing P to the right side of the equation.

Px=10x−7−px−3p

Divide each term by x and simplify.

P=10−7/x−p−3p/x

Step-by-step explanation:

6 0

3 years ago

"Find the coefficient of determination given that the correlation coefficient = -.39"

nika2105 [10]

Answer:

$r = -0.39$

And the determination coeffcient is just the correlation coeffcient square and we got:

$R = r^2 = (-0.39)^2 =0.1521$

And rounded to the nearest tenth thousand would be 0.1521

Step-by-step explanation:

The correlation coefficient is a measure of variability and is given by this formula:

$r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}$

For this case we have

$r = -0.39$

And the determination coeffcient is just the correlation coeffcient square and we got:

$R = r^2 = (-0.39)^2 =0.1521$

And rounded to the nearest tenth thousand would be 0.1521

4 0

3 years ago

Maggie has 4 3/5 of icing to decorate cakes for a bake sale. Each container will cover 20 1/4 in2. How many square inches will i

ExtremeBDS [4]

Answer:

$93\frac{3}{20} \ square \ inches$ .

Step-by-step explanation:

Given:

Maggie has 4 3/5 container of icing to decorate cakes for a bake sale.

Each container will cover 20 1/4 square inches.

Question asked:

How many square inches will it cover if she uses all of her icing ?

Solution:

Total number of container Maggie has = $4\frac{3}{5}$

Each container will cover = $20\frac{1}{4}$ square inches.

Now, we can find easily that how many square inches it will cover by using all of her icing by unitary method:

Each container will cover = $20\frac{1}{4}$

$4\frac{3}{5}$ container will cover = $20\frac{1}{4}\times4\frac{3}{5} =\frac{20\times4+1}{4} \times\frac{5\times4+3}{5} \$

$=\frac{81}{4} \times\frac{23}{5} =\frac{1863}{20} =93\frac{3}{20}\ square\ inches$

Thus, it will cover $93\frac{3}{20} \ square \ inches$ ,if she uses all of her icing.

7 0

3 years ago

Which expression defines the arithmetic series 4+8+12+... for four terms?

SSSSS [86.1K]

there are 6 terms! hope this helped

4 0

3 years ago

The minimum of the graph of a quadratic function is located at (–1, 2). The point (2, 20) is also on the parabola. Which functio

ss7ja [257]

The min or max of a parabola/quadratic function is the vertex

for
y=a(x-h)²+k
the vertex is (h,k)

so
vertex/min is at (-1,2)
h=-1
k=2

y=a(x-(-1))²+2
y=a(x+1)²+2
find a
given, (2,20) is on the graph

20=a(2+1)²+2
20=a(3)²+2
20=9a+2
minus 2 both sides
18=9a
divide by 9
2=a

y=2(x+1)²+2 is da equation

3rd one
f(x)=2(x+1)²+2

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3 years ago