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4 years ago

The improper fraction of 5 7/8

2 answers:

8 0

Well, if you multiply the whole number which is 5, by the numerator, which is 7. Then, add the denominator which is 8, you should get 43/8

5 times 7, plus 8 =43

Licemer1 [7]4 years ago

3 0

Its 47/8 hope this helped all you need to do is keep the 8 like how it is and then you do 5 times 8 and add 7 thats it

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Richard simplified an expression in three steps, as shown:

soldi70 [24.7K]

Answer:

Step 2 because Richard multiply the powers of same base in denominator instead adding powers of same base.

Step-by-step explanation:

We are given that Richard simplified an expression in threes steps

We have to find the incorrect step in simplification of Richard

Step 1: all the exponent are multiplied by 3

$\frac{x^{-4}y^2}{yx^2\cdot x^2y^{-4}}^{3}=\frac{x^{-12}y^6}{y^3x^6\cdot x^6y^{-12}}$

Step 2:The exponents in the denominator are multiplied

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$\frac{x^{-12}y^6}{x^{12}y^{-9}}=x^{-12-12}y^{6+9}$

$=x^{-24}y^{15}$

Richard makes mistake in step 2 when we multiply then power of same base should be added but Richard multiply the powers of same base in denominator.

4 0

4 years ago

Each base angle of an isosceles triangle measures 55° 30'. Each of the congruent sides is 10 centimeters long. Estimate the foll

kogti [31]

Answer:

55 deg 30 Minutes = 55.5 degrees

sin = opp/hyp

sin(55.5) = altitude/10

Altitude = 10*sin(55.5)

Altitude = 10 * sin(55.5) = 8.241261886

Rounded to nearest 10th

Altitude = 8.2 cm

b. for base use Low of Cosines

Let C = base

Side A and B = length 10 Cm

c^2 = 2*a^2 -2a^2*cos(<C)

<C = 180 - 2*55.5 = 180 -111 = 69 degrees

c = sqrt ( 2a^2 - 2a^2*cos(<C)

c = sqrt ( 2*100- 200*cos(69))

c = sqrt (200 - 200*cos(69) ) = 11.32812474

Answer base

c = 11.3 cms

Area = (1/2)*b * h

Area = (1/2)*(answer a * answer b)

Area = (1/2)* 11.32812474* 8.241261886 = 46.67902132

Area = 46.7 (rounded)

Area = ( 1/2) * a*b*sin(<C) = (1/2)*10*10*sin(69) =

Area = 50* sin(69) = 46.67902132

Area = 46.7 (rounded)

Step-by-step explanation:

3 0

3 years ago