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4 years ago

One one-hundreth meter means the same as ______ meter. 1 . centi 2 . peri 3 . kilo 4 . mili

1 answer:

7 0

For this case what we should keep in mind is the following conversion:
1 meter = 100 centimeters
We have then:
one-hundreth meter:
0.01 meters = 1 centimeter
Answer:
One one-hundreth meter means the same as ______
1 . centi

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The sum of a number and three is equal to five less than double that number

Liula [17]

Answer:

-2

Step-by-step explanation:

x + 3 = 2x + 5

-2 = x

7 0

3 years ago

A chair can be purchased in one of four colors: red, white, green, or blue. The number of chairs purchased in each color is list

Makovka662 [10]

Answer:

$P(Red) = 0.125$

Step-by-step explanation:

Given

$Red: 150$

$White: 450$

$Green: 225$

$Blue: 375$

Required

Determine the probability of getting a red chair, next.

First, we nee the total number of chairs

$Total = 150 + 450 + 225 + 375$

$Total = 1200$

Probability of getting red is then calculated as thus;

$P(Red) = Red/Total$

$P(Red) = 150/1200$

$P(Red) = 0.125$

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3 years ago

Select the pair of equations whose graphs are perpendicular.

viktelen [127]

$k:\ y=m_1x+b_1\ \ \ \ and\ \ \ \ l:\ y=m_2x+b_2\\ \\the\ line\k\ is\ perpendicular\ to\ the\ line\ l\ \ \ \Leftrightarrow\ \ \ m_1\cdot m_2=-1\\----------------------------\\\\A.\\2y=-3x+5\ \ \Rightarrow\ \ \ y=- \frac{3}{2} x+2.5\ \ \Rightarrow\ \ m_1=- \frac{3}{2} \\\\2x+3y=4\ \ \Rightarrow\ \ 3y=-2x+4\ \ \Rightarrow\ \ y=- \frac{2}{3}x+1 \frac{1}{3} \ \ \Rightarrow\ \ m_2=- \frac{2}{3} \\\\m_1\cdot m_2=- \frac{3}{2} \cdot (- \frac{2}{3})=1 \neq -1$

$B.\\5x-8y=9\ \ \Rightarrow\ \ -8y=-5x+9\ \ \Rightarrow\ \ \ y= \frac{5}{8} x-1 \frac{1}{8} \ \Rightarrow\ \ m_1= \frac{5}{8} \\\\12x-5y=7\ \Rightarrow\ \ -5y=-12x+7\ \ \Rightarrow\ \ y= \frac{12}{5}x-1 \frac{2}{5} \ \ \Rightarrow\ \ m_2= \frac{12}{5} \\\\m_1\cdot m_2= \frac{5}{8} \cdot \frac{12}{5}= \frac{3}{2} \neq -1$

$C.\\y=2x-7\ \ \Rightarrow\ \ m_1=2 \\\\x+2y=3\ \Rightarrow\ \ 2y=-x+3\ \ \Rightarrow\ \ y= -\frac{1}{2}x+1 \frac{1}{2}\ \ \Rightarrow\ \ m_2=- \frac{1}{2} \\\\m_1\cdot m_2= 2 \cdot (- \frac{1}{2})= -1\ \ \Rightarrow\ \ y=2x-7\ \ \ \ \perp\ \ \ \ x+2y=3$

$
D.\\x+6y=8\ \ \Rightarrow\ \ 6y=-x+8\ \ \Rightarrow\ \ \ y=- \frac{1}{6} x+1 \frac{1}{3}\ \ \Rightarrow\ \ m_1= -\frac{1}{6} \\\\y=2x-8\ \Rightarrow\ \ m_2= 2 \\\\m_1\cdot m_2= -\frac{1}{6} \cdot2=- \frac{1}{3} \neq -1$

7 0

3 years ago

What are the solutions to the equation x2 +2x-8=0

Solnce55 [7]

Answer:

x=2 x=-4

Step-by-step explanation:

x^2 +2x-8=0

Factor

What numbers multiply to -8 and add to 2

-2*4 = -8

-2+4 =2

(x-2) (x+4) =0

Using the zero product property

x-2 =0 x+4 =0

x-2+2=0+2 x+4-4=0-4

x=2 x=-4

5 0

3 years ago

Read 2 more answers

What is the efficiency of a machine that produces 4500 joules of output work for every 4250 joules of input work? (remember to p

rewona [7]

Answer:

105.88%

Step-by-step explanation:

Efficiency:

Output/input × 100

4500/4250 × 100

105.8823529%

4 0

4 years ago