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bogdanovich [222]
3 years ago
10

In the following activity, match each pair of equivalent expressions.

Mathematics
1 answer:
Vilka [71]3 years ago
8 0

Answer:

1. -8+3x

2. 51x-2+4x2 (squared)

3. 66x +324

4. 6x+2

5.  13 +13x

Step-by-step explanation:

I don't think I really understand the question but I tried to simplify the equations

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Stephanie is making 10 bracelets a day to prepare for an upcoming craft fair. Mary has offered to help Stephanie make bracelets
ankoles [38]

Answer:

11 bracelets a day

Step-by-step explanation:

7 0
3 years ago
Can anyone help me with trig identities?
nevsk [136]

Answer:

cosA = √(21/25)

Step-by-step explanation:

We know

sin²(A) + cos²(A) = 1

Next, we know that sin(A) = 2/5. Plugging that into our equation, we get

(2/5)² + cos²A = 1

4/25 + cos²A = 1

subtract 4/25 from both sides to isolate cos²A

cos²A = 1 - 4/25 = 25/25-4/25 = 21/25

square root both sides to get

cosA = √(21/25)

We do not include -√(21/25) in our possible answer for cosA because this is in quadrant 1, so cosA must be positive.

6 0
3 years ago
4
jeka57 [31]

Answer:

<h2>          5</h2>

Step-by-step explanation:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\(-5,1)\quad\implies\quad x_1=-5\,,\ \ y_1=1\\\\(-1,4)\quad\implies\quad x_2=-1\,,\ \ y_2=4\\\\d=\sqrt{(-1+5)^2+(4-1)^2}= \sqrt{4^2+3^2}=\sqrt{16+9}=\sqrt{25}=5

4 0
3 years ago
the sum of two numbers is 44. the smaller number is five-sixths of the larger number. what are the numbers?​
Sindrei [870]
X+y=44
x=5/6y

x+y=44
5/6y+y=44
11/6y=44
11y=264
y=24
x=5/6y=(5/6)*24=20
Answers: numbers are 20, 24
7 0
3 years ago
Use the table below to answer the following question
kakasveta [241]
A. false
B. true
C. true
D. true
8 0
3 years ago
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