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3 years ago

Rewrite this expression with grouping symbols: 3a-3

Mathematics

2 answers:

velikii [3]3 years ago

3 0

Answer:

3(a-1)

Step-by-step explanation:

3a-3

3*a -3*1

There is a 3 in both terms so we can factor it out

3(a-1)

Sav [38]3 years ago

3 0

Answer:

3(a - 1)

Step-by-step explanation:

3a - 3 = 3(a - 1)

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2x + y = −3 −2y = 6 + 4x Write each equation in slope-intercept form.

Zanzabum

slope intercept form is y=mx+b

so solve for y

2x+y=-3

minus 2x both sides

y=-2x-3

-2y=6+4x

divide both sides by -2

y=-3-2x

y=-2x-3

6 0

3 years ago

HELP ME ?

julsineya [31]

1. $\sqrt{11}$ is less than 3.5

2. $\sqrt{5}$ is more than 2.1

3. -5.3 is more than -5 $\frac{3}{5}$

4. $\frac{8}{10}$ is less than 0.8 repeating

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3 years ago

A cylinder has radius of 4 inches and height 10inches.There’s a small cylinder inside the previous cylinder of radius of 2 inche

MaRussiya [10]

The surface area of the cylinder is 48π inches².

<h3>How to find the Surface area of a cylinder?</h3>

Surface area of a cylinder = 2πr(r + h)

where

r = radius
h = height

Therefore,

Surface area of the smaller cylinder = 2 × π × 2(2 + 10)

Surface area of the smaller cylinder = 4π(12)

Surface area of the smaller cylinder = 48π

learn more on Surface area here: brainly.com/question/1780074

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2 years ago

One satellite is scheduled to be launched from Cape Canaveral in Florida, and another launching is scheduled for Vandenberg Air

Lisa [10]

Answer:

$P(A) = 0.45$

$P(B) = 0.32$

Step-by-step explanation:

Given

$P(A) > P(B)$

$P(A\ u\ B) = 0.626$

$P(A\ n\ B) = 0.144$

Required

Find P(A) and P(B)

We have that:

$P(A\ u\ B) = P(A) + P(B) - P(A\ n\ B)$ --- (1)

and

$P(A\ n\ B) = P(A) * P(B)$ --- (2)

The equations become:

$P(A\ u\ B) = P(A) + P(B) - P(A\ n\ B)$ --- (1)

$0.626 = P(A) + P(B) - 0.144$

Collect like terms

$P(A) + P(B) = 0.626 + 0.144$

$P(A) + P(B) = 0.770$

Make P(A) the subject

$P(A) = 0.770 - P(B)$

$P(A\ n\ B) = P(A) * P(B)$ --- (2)

$0.144 = P(A) * P(B)$

$P(A) * P(B) = 0.144$

Substitute: $P(A) = 0.770 - P(B)$

$[0.770 - P(B)] * P(B) = 0.144$

Open bracket

$0.770P(B) - P(B)^2 = 0.144$

Represent P(B) with x

$0.770x - x^2 = 0.144$

Rewrite as:

$x^2 - 0.770x + 0.144 = 0$

Expand

$x^2 - 0.45x - 0.32x + 0.144 = 0$

Factorize:

$x[x - 0.45] - 0.32[x - 0.45]= 0$

Factor out x - 0.45

$[x - 0.32][x - 0.45]= 0$

Split

$x - 0.32= 0 \ or\ x - 0.45= 0$

Solve for x

$x = 0.32\ or\ x = 0.45$

Recall that:

$P(B) = x$

So, we have:

$P(B) = 0.32 \ or \ P(B) = 0.45$

Recall that:

$P(A) = 0.770 - P(B)$

So, we have:

$P(A) = 0.770 - 0.32 \ or\ P(A) =0.770 - 0.45$

$P(A) = 0.45 \ or\ P(A) =0.32$

Since:

$P(A) > P(B)$

Then:

$P(A) = 0.45$

$P(B) = 0.32$

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3 years ago

Based on the pattern in the table, what is the value of a?

Ahat [919]

Answer: StartFraction 1 Over 64 EndFraction

Step-by-step explanation: Based on the pattern, the fraction keeps increasing. It keeps multiply itself by 2.

(I could be wrong, hopefully I'm Not)

8 0

3 years ago

Read 2 more answers