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3 years ago

A car is traveling at 60 kilometers per hour how many meters per second is that

Mathematics

1 answer:

kiruha [24]3 years ago

4 0

$60 \times 1000 = 60000 \div 60 \div 60 = 16.66$

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On a baseball team, the ages of each of the players are as follows: 21; 21; 22; 23; 24; 24; 25; 25; 28; 29; 29; 31; 32; 33; 33;

Paul [167]

Answer:

Mean = 30.68

Standard deviation = 6.095

Two standard deviations above the mean = 42.87

Step-by-step explanation:

Given the following data :

21; 21; 22; 23; 24; 24; 25; 25; 28; 29; 29; 31; 32; 33; 33; 34; 35; 36; 36; 36; 36; 38; 38; 38; 40

Mean = Σ(x) / n

n = 25

Σ (X) = 767

Mean (m) = 767 / 25

Mean (m) = 30.68

Standard deviation : sqrt[Σ(x - m) / n]

Using a calculator :

Standard deviation = 6.095 ( 2 decimal places)

2 standard deviations above the mean :

Mean + 2(standard deviation)

Mean + 2(6.095)

30.68 + 12.19

= 42.87

6 0

3 years ago

Help!!!<br> Find the zeros of the quadratic equation by factoring.<br><br> x^2+4x-5=0

weqwewe [10]

Answer:

x = -5, 1

Step-by-step explanation:

To factor an equation, break the polynomial into two binomials which multiply to make it. Find two numbers that multiply to C and add to B from $ax^2 + bx + c$ .

-1 and 5 multiply to -5 and add to 4.

$x^2+4x-5 = (x+5)(x-1)$

The zeros are the factors set equal to 0 and solved.

(x+5) = 0

x=-5

(x-1) = 0

x=1

4 0

3 years ago

Picture attached for question<br>

Tema [17]

<h3><u>Explanation</u></h3>

Properties of Exponent

${a}^{ \frac{m}{n} } = \sqrt[n]{ {a}^{m} }$

Convert the expressions from radical to exponent form.

$9 \sqrt[4]{ {t}^{3} } \times 7 \sqrt[3]{ {t}^{2} } \\ 9( {t}^{ \frac{3}{4} } ) \times 7( {t}^{ \frac{2}{3} } )$

Simplify the expression by multiplying.

$63( {t}^{ \frac{3}{4} } \times {t}^{ \frac{2}{3} } ) = 63( {t}^{ \frac{3}{4}+\frac{2}{3} } ) \\ 63( {t}^{ \frac{9}{12} + \frac{8}{12} } ) \\ 63( {t}^{ \frac{17}{12} } )Answer[tex] \large \boxed {63 {t}^{ \frac{17}{12} } }$

5 0

2 years ago

The line that BEST models the data shown in the scatterplot is line

Travka [436]

D because the data generally goes downward just as the arrow for answer choice D.

5 0

3 years ago

Read 2 more answers

Oscar and Julie Ashton are celebrating their 15th anniversary by having a reception at a local reception hall. They have budgete

forsale [732]

first you take 2,000 and subtract the cleanup fee, you get 1910 then you divide that by 31 and get 61.61 but you cant invite half a person so they can invite 61 people in total.

7 0

3 years ago