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3 years ago

Can anything be simplified 7x - 11x

Mathematics

1 answer:

Jobisdone [24]3 years ago

4 0

yes 7 - 11 = -4

so 7x - 11x = -4x

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A cyclist accelerates at a rate of 7.0 m/s2. how long will it take the cyclist to reach a speed of 18 m/s?

mart [117]

At constant acceleration the equation is

v = u + at where u = initial speed, a = acceleration. t = time and v = final speed

So here we have 18 = 0 + 7t

t = 18/7 = 2.6 seconds ( to nearest tenth)

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4 years ago

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The most common form of color blindness is an inability to distinguish red from green. However, this particular form of color bl

MaRussiya [10]

Answer:

(a) P(CBM) = 0.07

(b) P(not CBW) = 0.996

(c ) P(neither is color-blind) = 0.926

(d) P=(at least one is color-blind) = 0.074

Step-by-step explanation:

The correct data is that Approximately 7% of American men and 0.4% of American women are red-green color-blind.

(a) Probability that he is red-green color-blind:

$P(CBM) = 0.07$

(b) Probability that she is NOT red-green color-blind:

$P(not\ CBW) =1- P(CBW)\\P(not\ CBW) = 1 -0.004\\P(not\ CBW) =0.996$

(c) Probability that neither are red-green color-blind

$P(neither) = P(not\ CBW)*P(not\ CBM) \\P(neither) = 0.996 *(1-0.07)\\P(neither)=0.926$

(d) Probability that at least one of them is red-green color-blind

$P(at\ least\ one) = 1- P(neither) \\P(at\ least\ one) = 1-0.926\\P(at\ least\ one) = 0.074$

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4 years ago

Which proportion can be used to convert 22 kilograms to grams

Verizon [17]

1kg=1000g

Thus, 22kg=22000g

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4 years ago

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Ymorist [56]

Answer:

$\Huge \boxed{\mathrm{14}}$

$\rule[225]{225}{2}$

Step-by-step explanation:

$(\frac{1}{4} )^{-2} - (5^0) (2)(1^{-1})$

Solving for exponents and multiplying:

$(4 )^{2} - (1) (2)(1)$

$16-2$

Subtracting:

$\Rightarrow \ 14$

$\rule[225]{225}{2}$

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