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Yanka [14]
3 years ago
10

A partial factorization of x2-3x-10 is modeled with algebra tiles

Mathematics
1 answer:
Allushta [10]3 years ago
5 0

X² - 3x - 10


x² = x * x

10 can be factored:

1 x 10 ⇒⇒⇒ difference between factors = 9

2 x 5   ⇒⇒⇒ difference between factors = 3  ⇒ (The correct pair)


(x-5)(x+2) = x(x+2) - 5(x+2)

                = x² + 2x - 5x - 10

                = x² - 3x - 10



∴ x - 5 = 0  ⇒⇒⇒ x = 5

  x + 2 = 0  ⇒⇒⇒ x = -2

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Can someone pls help me!!!
max2010maxim [7]

Answer:

It will equally 2 because you need to change the 3 into a 9 because you can't add fractions without having the same common demometer

Step-by-step explanation:

4 0
3 years ago
Greg has 5 coins in his pocket. The value of all 5 coins is $0.57m which coins does he have in jis pocket
Step2247 [10]
Test all answer choices:
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B) 0.75+0.02 = 0.77 - incorrect
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D) 0.50+0.10+0.02 = 0.62 incorrect

The correct answer is C.
4 0
3 years ago
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Math help pleaseee<br> I need help ASAP
hram777 [196]

Answer: Slope: 6-(-6)/2-(-4)=2

Slope:2

Write it in the standard form

Y=2x+b

Find the b

Substitute the y and x

6=2(2)+b

b=2

Here the equation=

Y =2x+2

Step-by-step explanation:

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3 years ago
Evaluate. 7^2 - 3 + 9 × 8 ÷ 2<br><br> w =
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7^2 - 3 + 9 x 8 / 2
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Jika sin x = p, dengan x tumpul, maka cos(x + 60) =​
Novay_Z [31]

Menjawab:

[(√1-p²) -3√p] / 2

Penjelasan langkah demi langkah:

Dari identitas trigonometri, pemuaiannya benar:

Cos (A + B) = cosAcosB-sinAsinB

Menerapkan ini dalam memperluas cos (x + 60).

cos (x + 60) = cosxcos60 - sinxsin60

Jika sinx = p = berlawanan / sisi miring

opp = p, hyp = 1

adj² = 1²-p²

adj = √1-p²

Cos (x) = adj / hyp = √1-p² / 1

Cos (x) = √1-p²

Cos60 = 1/2 dan sin60 = √3 / 2

Mengganti nilai-nilai ini ke dalam rumus

cos (x + 60) = cosxcos60 - sinxsin60

cos (x + 60) = √1-p² (1/2) - p (√3 / 2)

cos (x + 60) = (√1-p²) / 2 - √3p / 2

Temukan KPK tersebut

cos (x + 60) = [(√1-p²) -3√p] / 2

Oleh karena itu cos (x + 60) = [(√1-p²) -3√p] / 2

5 0
4 years ago
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