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3 years ago

(j-1)(-3) I need help solving the distributive property.

Mathematics

1 answer:

Reptile [31]3 years ago

5 0

Answer:

Step-by-step explanation:

-3*j = -3j

(-3)(-1) = 3

Answer

-3j + 3 Notice the sign change. Be careful about that when signs are used with the distributive property.

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If the ratio of the radii of two spheres is 6 : 5, what is the ratio of the surface areas of the two spheres?

Veseljchak [2.6K]

Answer: Choice C) 36:25

To get this answer, we simply square each piece of the original ratio 6:5
6^2 = 36
5^2 = 25

Think of two squares where one has a side length of 6 and the other of 5. The ratio of the sides is 6:5. The areas of the two squares are 36 and 25 as mentioned above. So the ratio is 36:25. This idea can be applied to any surface area or area in general. It doesn't have to be two squares. The reason why we can apply this to any general shape is because we can break up the shape into small squares to get a rough approximation. The more squares we use, the better the approximation.

7 0

3 years ago

What is 8.25 as a fraction in simplest form?

vekshin1

8 is a whole number, so this will be the whole number part of our mixed number.

0.25 is a decimal, where 25 is in the HUNDREDths place, so we write 25 as a fraction over 100.

$\sf\dfrac{25}{100}$

Simplify by dividing 25 to the numerator and denominator.

$\sf25\div25=1$
$\sf100\div25=4$

So our fraction is $\sf8\dfrac{1}{4}$

0.55 is a decimal, where 55 is in the HUNDREDths place, so we write 55 as a fraction over 100.

$\sf\dfrac{55}{100}$

Simplify by dividing 5 to the numerator and denominator.

$\sf55\div5=11$
$\sf100\div5=20$

So our fraction is $\sf\dfrac{11}{20}$

$\sf\dfrac{5}{8}$

To convert this to a decimal, just divide 5 / 8

$\sf5\div8=0.625$

3 0

3 years ago

Read 2 more answers

What are two answers for 2 / 3 - 5 / 12

nordsb [41]

Answer:

0.25

Step-by-step explanation:

the answer is 1/4 or 0.25 in decimal form

6 0

4 years ago

What is the equation in the point slope form for a line that goes through 7,5 and has a slope of -4,-1

Nuetrik [128]

Answer:

The equation of the line would be y = -4x + 33

Step-by-step explanation:

To find this, we use point-slope form with the point given and the slope given. Then we solve for y.

y - y1 = m(x - x1)

y - 5 = -4(x - 7)

y - 5 = -4x + 28

y = -4x + 33

5 0

3 years ago

Please help I will give brainliest.

ale4655 [162]

Answer:

a and -b is the answer

Step-by-step explanation:

(x-a)(x+b) = 0

x-a = 0 and x+b = 0

then

x = a and x = -b

8 0

3 years ago