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Mariana [72]
3 years ago
8

7/8 x 1/3 please help me :)

Mathematics
2 answers:
Nonamiya [84]3 years ago
7 0

Answer:

7/24 or about 0.29

Step-by-step explanation:

when multiplying fractions you first have to remember that:

a/b * c/d = a*c / b*d

If you remember that then its not hard to calculate:

7/8 * 1/3 = 7*1 / 8*3 = 7/24

Hope i could help :D

Dont be afraid to ask questions :)

dimaraw [331]3 years ago
4 0

Answer: 7/24

Step-by-step explanation:

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Find the slope of the line passing through the points 3, 4 and 8 , -3 .
olga55 [171]

Answer:

m= -7/5

Step-by-step explanation:

(x1,y1)=(3,4)

(x2,y2)=(8, -3)

Use the slope formula:

m = y2 - y1

x2 - x1

(-3-4)/ (8-3)

= -7/5

8 0
3 years ago
A cubed-shaped box has its side lengths decreased by 3 cm, when this happens, the volume decreases by 1385cm^3. What is the side
mixer [17]

Answer:

Step-by-step explanation:

let side of cube=x cm

volume=x³ cm³

again side=(x-3) cm

volume=(x-3)³ cm³

x³-(x-3)³=1385

(a³-b³)=(a-b)(a²+ab+b²)

(x-x+3){x²+x(x-3)+(x-3)²}=1385

3(x^2+x²-3x+x²-6x+9)=1385

3(3x²-9x+9)=1385

9x²-27x+27=1385

9x²-27x+27-1385=0

9x²-27x-1358=0

x=\frac{27\pm\sqrt{(-27)^2-4*9*(-1358)} }{2*9} \\x=\frac{27\pm\sqrt{729+48888} }{18} \\or~x=\frac{27\pm\sqrt{49617} }{18} \\or~x=\frac{27\pm 222.749}{18} \\taking positive side only as negative sign gives negative length.\\or~x=\frac{27+222.749}{18} \\or~x\approx13.87

3 0
3 years ago
A data set has 40 data points. Enter values to answer each of the questions below.
alukav5142 [94]
When the number of data points is odd the formula to find the Ranking of the Median is (n+1)/2, When the number of data points is even the ranking of the Median will be the AVERAGE of n/2 + n/2 +1, where n is the number of data points.

In our case the ranking of the Median is the average (20+21)/2 = 20.5.

1- How many points are below the Median =20

Lower half = 20, Upper half = 20 & Median = 20.5 (Don't forget Median is the ranking of data points).

Again the 1st Quartile is at 10.5, so 10 data points are below the 1st Quartile

and 20 points are between Q1 & Q3

5 0
3 years ago
Read 2 more answers
Find the equation of the linear relationship
kiruha [24]

answer is 10---- i think

7 0
3 years ago
Read 2 more answers
If the vertex of a parabola is at (2, 3) and the point (0, -1) is also on the parabola, find an equation for the parabola. Write
STALIN [3.7K]

Answer:

y=-1(x-2)^2+3

Step-by-step explanation:

W have been given that the vertex of a parabola is at (2, 3) and the point (0, -1) is also on the parabola. We are asked to find the equation of parabola in the form y=(x-h)^2+k.  

We know that vertex form of parabola in form y=a(x-h)^2+k, where (h,k) in vertex of parabola.  

Upon substituting coordinates of vertex, we will get:

y=a(x-2)^2+3

To find the value of a, we will substitute coordinates of point (0, -1) as:

-1=a(0-2)^2+3

-1=a(4)+3

-1=4a+3

-1-3=4a+3-3

-4=4a

\frac{-4}{4}=\frac{4a}{4}

-1=a

Therefore, our required equation would be y=-1(x-2)^2+3.

3 0
3 years ago
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