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Black_prince [1.1K]
3 years ago
11

What is (x-3)(x+7) ?

Mathematics
1 answer:
Alexeev081 [22]3 years ago
6 0

Answer:

-1x-3×-1x-7

-4x×-7x

=28x

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In a class full of men and women, 2/9 of the class are women. What is the ratio of men to
RUDIKE [14]

Answer:

2:7

Step-by-step explanation:

if 2/9 of the class are women then 7/9 of the class are men.

\frac{2}{9}:\frac{7}{9}\\ 2*9:7*9\\18:63\\\frac{18}{9}:\frac{63}{9}\\2:9

6 0
3 years ago
I NEED HELPPPPPP!!!! :DDDD WILL MARK BRAINLIEST TO THE BEST ANSWER!!!! PLEASE SHOW ALL SOLUTIONS!!!! In triangle ABC, the exteri
QveST [7]

9514 1404 393

Answer:

  ∠A = 66.2°

Step-by-step explanation:

The sum of exterior angles of any polygon is 360°, so you have ...

  (3x +10)° +(5x)° +(2x +4)° = 360°

  10x +14 = 360 . . . . . . . . . . . . . . .collect terms, divide by °

  x + 1.4 = 36 . . . . . . . . . divide by 10

  x = 34.6

The interior angle at A is the supplement of the exterior angle there:

  ∠A = 180° -(3x +10)° = 180° -(3(34.6) +10)°

  ∠A = 66.2°

8 0
3 years ago
jessie says to round 763,400 to the nearest ten thousand,he will round to 770,000. is he right? explain
Schach [20]
No, because you would round up if the number to the right of the ten thousand place was at least five you would round up but since it's only three you would round the number to 760,000
5 0
3 years ago
Read 2 more answers
N^2/3=9 indices equation​
Mekhanik [1.2K]

Answer:

Exponential equations

Step-by-step explanation:

8 0
3 years ago
Which terms could be used as the first term of the expression below to create a polynomial with a degree of 5 written in standar
Sladkaya [172]

Answer:

Option 2 - -4x^3y^2

Option 5 - 5x^4y

Step-by-step explanation:

To find : Which terms could be used as the first term of the expression below to create a polynomial with a degree of 5 written in standard form?

Solution :

The polynomial with a degree of 5 means the polynomial of highest power must be 5.

Now, we check one by one,

1) 2x^2y^2-3xy^3 - the highest degree is 4

2) -4x^3y^2 - the highest degree is 5

3) x^3 - the highest degree is 3

4) 8.4x^4y^2 - the highest degree is 6

5) 5x^4y - the highest degree is 5

6) -xy^3 - the highest degree is 4

Therefore, In the above options- option 2 and 5 has the highest degree 5 which means they both have a polynomial with a degree of 5.

6 0
3 years ago
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