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3 years ago

3(2 + 4) = 60 5 + 1 = 8 − 23 can someone help me please

Mathematics

2 answers:

Lelechka [254]3 years ago

8 0

Answer:

I am trying to help you, but i need to know the content of the question. What am i trying to do? Simplify? Explain? Say if true or False? More info will allow me to assist you much better than before. Then I will alter my answer accordingly

Step-by-step explanation:

alexdok [17]3 years ago

7 0

Search it up on a calculator or on. google and you’ll get the right answer

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Find the slope of a line that passes through (-2,1) and (4,9)

melamori03 [73]

Answer:

m = 4/3

Step-by-step explanation:

To find the slope of a line use the formula, where "m" means slope:

$m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

*You don't need to show this part on paper*

Choose which point you want to be point 1 and point 2. Remember the points are written (x, y).

Point 1: (-2, 1) x₁ = -2 y₁ = 1

Point 2: (4, 9) x₂ = 4 y₂ = 9

Substitute the coordinates into the formula:

*Show this part on paper*

$m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

$m=\frac{9-1 }{4-(-2) }$ Simplify

$m=\frac{8 }{6 }$ Reduce by dividing by 2

$m=\frac{4 }{3 }$ Slope

The slope of the line is 4/3

8 0

3 years ago

A pendulum is 18 feet long. Its central angle is 44º. The pendulum makes one back and forth swing every 12 seconds. Each minute,

expeople1 [14]

Radius: r=18 feet
Cental Angle: A=44°
Each cycle (one back and forth) lasts 12 seconds
In each cycle the pendulum swings:
L=(A/360°) 2 pi r
L=(44°/360°)(2)(3.141592654)(18 feet)
L=(0.122222222)(113.0973355 feet)
L=13.82300764 feet
Rounded to 3 decimal places:
L=13.823 feet

Each minute (60 seconds) the pendulum makes:
Number of cycles: n=(60 seconds) / (12 seconds)→n=5 cycles

Then, each minute, the pendulum swings:
T=nL=5(13.823 feet)→T=69.115 feet

Answer: Each minute, the pendulum swings 69.115 feet.

8 0

3 years ago

145 is what percent of 620

Oksanka [162]

Hello There!

145 is 23.39% of 620

HOW TO SOLVE

Equation: Y = P% * X

We need to solve our equation for "P"

P% = Y/X

P% = 145/620

p = 0.2339

Convert decimal to percent:

Percent = 0.2339 * 100 = 23.39%

4 0

3 years ago

Which expression will calculate the distance between any two points (p and q) on a number line?

aleksley [76]

Answer:

The answer is (A)

Step-by-step explanation:

By subtracting both number you will be left off with the distance between the numbers.

Edit: answer (C) is wrong because it refers to the absolute values of p and q, the absolute value of a number is equal to how many numbers that number is away from zero.

6 0

3 years ago

Read 2 more answers

Which graph shows the system of equations 4x+y = 3 and 2x-3y = 3?

jarptica [38.1K]

Answer:

red line is 4x+y=3 and blue line is 2x-3y=3

Step-by-step explanation:

7 0

2 years ago