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zmey [24]
2 years ago
11

PLEASE ANSWERING THIS QUESTION!!

Mathematics
2 answers:
jonny [76]2 years ago
7 0

Answer:

1/5

Step-by-step explanation:

because 9 divided by 9 is 1, and that means you must divide the denominator to, so 45 divided by 5, thus, you have 1/5

musickatia [10]2 years ago
6 0
Yes , reducing in simplest terms is very important regarding fractions which still have a chance to get reduced.

how do we reduce?
We commonly/usually reduce them with their suitable factors or in which table they go (multiplication factors)

So as 2/4 is reduced into 1/2 , here 2 and 4 are multiples of 2 and can be reduced into their simple forms as 1 and2
Because 2 x 1 = 2 and 2 x 2 = 4

So now considering the question. , 9/45

This can be reduced in two ways

With factors of three first!

=> 9/45

This goes in three table as 3 x 3 = 9 and 3 x 15 = 45
So we get it as 3/15
And we can again simplify this with 3

3 x 1 = 3 and 3 x 5 = 15

Which comes out to be 1/5

Now second method ;

Directly with 9 table

We know , 9 x 1 = 9 and 9 x 5 = 45

Can be reduced as 1/5 easily.

Also refer attachment

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Use the following information to determine your answer: The length of a movie falls on a normal distribution. About 95% of movie
Elenna [48]

Answer:

75= 119 -1.96 \sigma

\sigma = \frac{75-119}{-1.96}= 22.45

And tha's equivalent to use this formula:

163= 119 +1.96 \sigma

\sigma = \frac{163-119}{1.96}= 22.45

Step-by-step explanation:

For this case the 95%of the values are between the following two values:

(75 , 163)

And for this case we know that the variable of interest X "length of a movie" follows a normal distribution:

X \sim N( \mu, \sigma)

We can estimate the true mean with the following formula:

\mu = \frac{75+163}{2}= 119

Now we know that in the normal standard distribution we know that we have 95% of the values between 1.96 deviations from the mean. We can find the value of the deviation with this formula:

75= 119 -1.96 \sigma

\sigma = \frac{75-119}{-1.96}= 22.45

And tha's equivalent to use this formula:

163= 119 +1.96 \sigma

\sigma = \frac{163-119}{1.96}= 22.45

4 0
3 years ago
Please Answer This Quick Like Plz Like Now!
Marat540 [252]
You divide 5.8 by 1.45
6 0
3 years ago
Read 2 more answers
One side of a right triangle is 8 cm shorter than the hypotenuse and 7 cm shorter than the third side. Find the lengths of the s
Reptile [31]

Answer:

5 cm

Step-by-step explanation:

Let the shorter side be a, longer side be b, hypotenuse be c

By Pythagorean theorem:

a² + b² = c²

a² + (a + 7)² = (a + 8)²

a² + a² + 14a + 49 = a² + 16a + 64

a² - 2a - 15 = 0

a² + 3a - 5a - 15 = 0

a(a + 3) - 5(a + 3) = 0

(a + 3)(a - 5) = 0

a = -3 or a = 5

Because a is a side length and is a positive number

a = 5

7 0
3 years ago
Pls look at this pic and help like i don't understand i will mark u as brainliest
dimulka [17.4K]

Answer:

48 cubic yard

Step-by-step explanation:

volume \: of \: pyramid \\  = area \: of \: base \times height \\  =  {4}^{2}  \times 3 \\  = 16 \times 3 \\  = 48 \:  {yard}^{3}  \\

3 0
3 years ago
Please I need help ASAP<br>pls explain your answer ​
USPshnik [31]

Answer:

47.62 cm

Step-by-step explanation:

ABCD is a rhombus. Each side measures 15 cm.

m<A = 60°.

Here are some properties of a rhombus:

Opposite angles of a rhombus are congruent.

m<C = m<A = 60°

m<ADC = m<ABC

The sum of the measures of the interior angles of a quadrilateral is 360°.

The diagonals are perpendicular bisectors of each other.

m<A + m<C + m<ADC + m<ABC = 360°

60° + 60° + 2m<ADC = 360°

2m<ADC = 240°

m<ADC = 120°

Each diagonal of a rhombus bisects a pair of congruent, opposite angles.

m<ADB + m<CDB = m<ADC

m<ADB = m<CDB

m<ADB + m<ADB = 120°

m<ADB = 60°

Triangle ABD had two angles, <A and <ADB, that measure 60°. Therefore, the third angle, <ABD also measures 60°. That makes triangle ABD an equilateral triangle.

Draw segment AT.

T is the midpoint of BD. The segment AT is the perpendicular bisector of segment BD. Triangle ATD is a 30-60-90 triangle.

Using the ratio of the lengths of the sides of a 30-60-90 triangle, we can calculate the length of AT which is the radius of circle A.

TD : AT : AD

1    : √3 :   2

AD = 15 cm

TD = AD/2

AT = √3 × TD

AT = (AD√3)/2

AT = 7.5√3 = 12.99

AQ = 12.99

perimeter = QD + PB + m(arc)PTQ + BC + CD

perimeter = (15 - 12.99) + (15 - 12.99) + 60°/360° × 2π(12.99) + 15 + 15

perimeter = 47.62

Answer: perimeter = 47.62 cm

7 0
3 years ago
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