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4 years ago

Explain how to find the product of 3/8 * 7/9 use complete sentences in your answer

Mathematics

1 answer:

Fofino [41]4 years ago

3 0

Answer:

you times the numerators together and times the denominators together then you simplify

Step-by-step explanation:

hope this helps </3

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Please solve with explanation (high points)

IgorLugansk [536]

So, we know that:

$A=\dfrac{1}{2}ab\\P=a+b+c\\a^2+b^2=c^2$

We also know that $(a+b)^2=a^2+2ab+b^2$ . We will use that fact to find $c$ in terms of $A$ and $P$ .

$A=\dfrac{1}{2}ab\Rightarrow 2ab=4A\\P=a+b+c\Rightarrow a+b=P-c$

Therefore:

$(P-c)^2=c^2+4A\\P^2-2cP+c^2=c^2+4a\\2cP=P^2-4A\\c=\dfrac{P^2-4A}{2P}$

7 0

2 years ago

If a cone with a diameter of 10 m has a surface area of 190.6m2, find its slant height. Round to the nearest tenth.

alukav5142 [94]

Answer: The slant height of the cone is 65.6 m

Step-by-step explanation:

Given: The diameter of a cone = 10 m

Surface area of cone = 190.6 m²

To find: Slant height

Diameter of cone = 10 m

Therefore Radius of cone = $\dfrac{\text {Diameter }}{2} = \dfrac{10}{2} =5m$

As we know that surface area of a cone is given by

$S.A. = \pi r(l+r)$

Where S.A. is surface area , r is the radius of cone and l is the slant height of the cone.

Let Slant height = l

So we have

$190.6 = \dfrac{22}{7} \times 5 ( 5+l)\\\\\Rightarrow 5+l= \dfrac{190.6 \times 7}{22}\\\\\Rightarrow l= \dfrac{1334.2}{22}+5\approx 60.64+5 = 65.64\approx65.6$

Hence the slant height of the cone is 65.6 m

5 0

3 years ago

Bill and Annie's ages add up to a total of 30 years. Bill is six years older than twice Annie's age. How old are Bill and Annie?

omeli [17]

Bill is 5 years old and annie is 6 years old so, you multiply 5×6=30

6 0

4 years ago

Can you please help with math

melomori [17]

Interpret the exponent in the formula. S to the third power means to use s as a factor 3 times.

V = S to the third power = S x S x S

Find the volume of the first cube.
Substitute 4 for s.

V = 4 x 4 x 4 = 64

Find the volume of the second cube.
Substitute 7 for s.

V = 7 x 7 x 7 = 343

Tamara's first cube has a volume of 64 cubic centimeters, and her second cube has a volume of 343 cubic centimeters

7 0

3 years ago

Please help!!!

valentinak56 [21]

Answer:

Step-by-step explanation:

X - 15 =8

+ 15 +15

15+8=23

23-15=8

X =23

3 0

3 years ago

Explain how to find the product of 3/8 * 7/9 use complete sentences in your answer ​

Explain how to find the product of 3/8 * 7/9 use complete sentences in your answer