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zavuch27 [327]
3 years ago
13

Can I get help please!

Mathematics
1 answer:
Naily [24]3 years ago
8 0
55x5 - 40x5
The third one down
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SOMEONE DO NUMBER 1 AND 2 FOR ME, ILL GIVE BRAINLIEST
amid [387]

Answer:

1. The second number line, the third number line, the first number line.

2.

a) \: 1 \frac{7}{8}  >  \frac{7}{4}

b) \:  \frac{21}{5} =  4 \frac{1}{5}

c) \frac{13}{4} <  3 \frac{5}{6}

8 0
3 years ago
A square is 3 centimeters by 3 centimeters. What are the dimensions of a similar square with sides that are three times that siz
Serjik [45]

Answer:9 cm by 9cm

Step-by-step explanation: 3*3=9

5 0
3 years ago
What is the mean? If the answer is a decimal, round it to the nearest tenth.
Semmy [17]

Answer:

The mean is 52.

Step-by-step explanation:

The mean is the sum of all elements divided by the number of elements.

In this problem, we have that:

Elements

56 47 48 52 62 59 49 56 43 48

Sum

56+47+48+52+62+59+49+56+43+48 = 520

Number of Elements

10 elements

The mean is

M = \frac{520}{10} = 52

8 0
3 years ago
Find all values of in the interval [0, 2π] that satisfy the equation. Enter your answers from smallest to largest. (Enter NONE i
Mrrafil [7]

Answer:

<h3><em>π/4 and 3π/4</em></h3>

Step-by-step explanation:

Given the equation 2\sin^2(x) = 1 \\, we are to find all the values of x in the interval  [0, 2π] that satisfies the equation.

Simplifying the equation:

2\sin^2(x) = 1 \\\\sin^2x = \frac{1}{2} \\\\

Square both sides of the equation;

\sqrt{sin^2x } = \sqrt{\frac{1}{2} } \\\\sin(x) = \sqrt{0.5}\\ \\sin(x) = 0.7071\\\\x = sin^{-1}0.7071\\\\x \approx 45^0

The general formula for sin(x)  is x = nπ + (-1)ⁿ∝ where n = 0, 1, 2, 3...

Since ∝ = 45° = π/4.

x = nπ + (-1)ⁿπ/4

when n = 1

x = π + (-1)¹π/4

x =  π - π/4

x = 3π/4

<em>Hence the values of x within the given interval are π/4 and 3π/4</em>

5 0
3 years ago
Write 4(x+2) using the distributive property
Damm [24]
Hey there! :D

The distributive property states that:

a(b+c)= ab+ac

4(x+2)= 4*x+4*2

4x+8 <== simplified expression

I hope this helps!
~kaikers
7 0
3 years ago
Read 2 more answers
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