Answer:
x=-7 x=4
Step-by-step explanation:
(x −2)(x + 5) = 18
Foil
x^2 +5x-2x-10 = 18
Combine like terms
x^2 +3x -10 =18
Subtract 18 from each side
x^2 +3x -28 = 0
Factor
What two numbers multiply to -28 and add to 3: 7 and -4
(x+7) (x-4) =0
Using the zero product property
x+7=0 x-4 =0
x=-7 x=4
Answer:
To find the mean, add the numbers and divide the sum by the number of addends. The median is the middle number in a data set that is ordered from least to greatest. When there are two middle numbers, the median is the mean of these two numbers.
Step-by-step explanation:
Given :
To find the product of 183.5 and 10², move the decimal point in 183.5 _____ places to the right because 10² has _____ zeros.
To Find :
We need to fill the spaces.
Solution :
We know, when number with positive power of 10 is multiplied with another number we need to shift the number to the right hand side by the number of zeroes.
So, To find the product of 183.5 and 10², move the decimal point in 183.5 <u>to right</u><u> </u> places to the right because 10² has <u>two </u>zeros.
Hence, this is the required solution.
<h3>Number of minutes in 3/4 of an hour is :
</h3>
<h3>n = 3/4 × 60 = 45 minutes.
</h3>
<h3>Now, If it continues to rain at that rate for 15 more minutes :
</h3><h3>
</h3><h3>So, time taken = 45 + 15 min = 1 hour.
</h3><h3>
</h3><h3>Let, rain gauge is filled x fraction in 1 hour.
</h3>
<h3>So,
</h3>
<h3>Hence, this is the required solution.</h3>