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2 years ago

(e) 3x2 + 10x + 3 by x + 3

Mathematics

1 answer:

kap26 [50]2 years ago

8 0

Answer:

(3x+1)(x+3) is the factorised form for the expression.

Step-by-step explanation:

We can Split the Middle Term of this expression to factorise it.

In this technique, if we have to factorise an expression like

, we need to think of 2 numbers such that:

⋅

and,

After trying out a few numbers we get:

and

⋅

, and

(

)

(

)

(

)

(

)

(

)

is the factorised form for the expression.

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Alex17521 [72]

All 3 triangle angles always add up to 180 degrees.
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3 years ago

What would be the answer too 900ft2+ 144ft2???

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Answer: 1044ft

Step-by-step explanation:

900ft2 + 144ft2

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2 years ago

xz_007 [3.2K]

Answer:

1) $n = 84$

2) $n = 78$

3) $n = 24$

4) $n = 16$

5) $n = 35$

Step-by-step explanation:

To solve each proportion, we apply cross multiplication.

Question 1:

$\frac{5}{12} = \frac{35}{n}$

$5n = 35*12$

Simplifying both sides by 5

$n = 7*12 = 84$

Question 2:

$\frac{n}{52} = \frac{180}{120}$

$120n = 52*180$

Simplifying both sides by 20

$6n = 52*9$

Simplifying by 3

$2n = 52*3$

Simplifying by 2

$n = 26*3 = 78$

Question 3:

$\frac{18}{n} = \frac{21}{28}$

$21n = 18*28$

Simplifying both sides by 7

$3n = 18*4$

Simplifying both sides by 3

$n = 6*4 = 24$

Question 4:

$\frac{n}{4} = \frac{24}{6}$

$\frac{n}{4} = 4$

$n = 16$

Question 5:

$\frac{10}{16} = \frac{n}{56}$

$16n = 56*10$

Simplifying by 2, both sides

$8n = 56*5$

Simplifying by 8, both sides

$n = 7*5 = 35$

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3 years ago

A national study, that revealed a normal distribution, revealed that the average time a student spends studying statistics on a

Neporo4naja [7]

Answer:

Null hypothesis = H0 : μ = 60

Alternative hypothesis = H1 : μ < 60

Step-by-step explanation:

From the question given :

μ = 60 minutes

xbar = 44.27 minutes

s = 20.4 minutes

The alternative hypothesis is the claim ; which is to hypothesize that the average studying time is 44.27 (which is less than the population average studying time)

The null hypothesis is the initial truth and it is the opposite of the alternative hypothesis.

The hypothesis are :

H0 : μ = 60

H1 : μ < 60

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2 years ago

The center of mass of a triangular solid is at its what?

Leya [2.2K]

I believe it is vertex

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3 years ago

(e) 3x2 + 10x + 3 by x + 3​

(e) 3x2 + 10x + 3 by x + 3