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lidiya [134]
2 years ago
11

Which phrase represents 3y+9​

Mathematics
2 answers:
sweet [91]2 years ago
8 0

Answer:

9 more than 3 times y; first option

Step-by-step explanation:

3y is 3 times y, and +9 represents 9 more.

Alex2 years ago
4 0

Answer:

A. 9 more than 3 times y

Step-by-step explanation:

3 and y are next to each so it is multiplying then the 9 is being added after word. Therefore, 9 more than 3 times y. If it said 9+3y the answer would be the same since we have to follow the PEMDAS order. Parenthesis, exponents, multiplication and division, addition and subtraction.

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Please can someone solve this question?
kaheart [24]
4 x 4 x 4 thats all ☺

7 0
3 years ago
Simplify: (sin θ − cos θ)^2 − (sin θ + cos θ)^2 A) −4sin(θ)cos(θ) B) 2 C) sin^2 θ D) cos^2 θ
N76 [4]

Answer:

-4sinθcosθ

Step-by-step explanation:

Note:

1. (a + b)^2 = a^2 + 2ab + b^2

2. (a - b)^2 = a^2 - 2ab + b^2

3. sin^2θ + cos^2θ = 1

(sinθ -cosθ)^2 - (sinθ + cosθ)^2

= sin^2θ - 2sinθcosθ + cos^2θ - (sin^2θ + 2sinθcosθ + cos^2θ)

= sin^2θ + cos^2θ - 2sinθcosθ - (sin^2θ + cos^2θ + 2sinθcosθ)

= 1 - 2sinθcosθ - (1 + 2sinθcosθ)

= 1- 2sinθcosθ -1 - 2sinθcosθ

= - 2sinθcosθ - 2sinθcosθ

= -4sinθcosθ

3 0
3 years ago
4. East High School has 540 students. There are 220 girls in the school.
Ierofanga [76]

Answer:

11:16

Step-by-step explanation:

The ratio is 220:320.

Cancel the 0s then divide by 2.

22/2=11

32/2=16

3 0
3 years ago
The lines y=3x-1 and y=ax+2 are perpendicular if a=___
mezya [45]

Answer:

a = \frac{-1}{3}.

Step-by-step explanation:

The equation of line in the form .

y = mx + c

Where m is the slope and c is the y- intercept .

As given

The lines y=3x-1 and y=ax+2 are perpendicular .

Here 3 is slope for equation of line  y=3x-1 and a is slope for equation of line

y=ax+2 .

Now by using properties of the perpendicular lines property .

When two lines are perpendicular than slope of one line is negative reciprocal of the other line .

Thus

a = \frac{-1}{3}

Therefore a = \frac{-1}{3}.

8 0
2 years ago
Read 2 more answers
State all integer values of x in the interval [2, 7] that satisfy the following inequality: 3x + 4 < 14​
Sati [7]

Answer:

456

Step-by-step explanation:

thank you for the free ponits :)))

7 0
3 years ago
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