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3 years ago

which of these expressions is equivalent to 8 × (a 1)? a a × (8 1) b 8 (a × 1) c (8 × a) 1 d 8 × a 8 × 1

Mathematics

1 answer:

liberstina [14]3 years ago

6 0

8 x (a + 1) = (8 x a) + (8 x 1)

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6y+40=10y-32
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3 years ago

Find the slope of a line that passes through points (-1,-5) and (6,9).

Nana76 [90]

Answer:

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Find circumference when pi is 22/7

sashaice [31]

Answer:

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Step-by-step explanation:

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3 years ago

2(x-3)-8< -4 I need a explanation and the answer please.

tresset_1 [31]

Answer:

The solution to the inequality is:

$x$

The number line solution graph is also attached below.

Step-by-step explanation:

Given the inequality

$2(x-3)-8< -4$

Add 8 to both sides

$2\left(x-3\right)-8+8$

$2\left(x-3\right)$

Divide both sides by 2

$\frac{2\left(x-3\right)}{2}$

$x-3$

Add 3 to both sides

$x-3+3$

$x$

Thus, the solution to the inequality is:

$x$

The number line solution graph is also attached below.

6 0

3 years ago

The radius of a wheel is 21m.how much distance will it covers when it rotates 5 times?

mrs_skeptik [129]

Answer:

Distance = 660 meters

Step-by-step explanation:

Given the following data;

Radius, r = 21 m

Number of revolutions = 5 times

To find the distance covered;

The distance covered in one revolution is given by the circumference of a circle.

Mathematically, circumfeence of a circle is equal to;

C = 2πr

Substituting into the formula, we have;

C = 2 * 22/7 * 21

C = 44 * 3

C = 132 meters

Next, we find the distance covered;

Distance = Circumference * Number of revolutions

Distance = 132 * 5

Distance = 660 meters

8 0

3 years ago