Answer:
-4
Step-by-step explanation:
Use distributive property:
(-4)(0) -4 =
0 - 4 =
-4
Hope this helps! Please mark as brainliest
Answer: a & b
<u>Step-by-step explanation:</u>
The sum of the probabilities should equal 1.0
a) <u>probability of 5/3 is greater than 1</u> shows that the probability distributions will result in a sum greater than 1.
b) <u>The sum of the probabilities is 31/12</u> shows that the sum of the probability distributions is unequal to 1.0.
c) <u>The result is less than 0</u> is irrelevant. The data could be temperature <em>(or something else which can be measured as a negative value).</em>
d) <u>The probabilities have different denominators</u> is irrelevant. Fractions can be reduced and unlike denominators can be turned into like denominators. The most important thing is that their sum is 1.0.
Answer:
16 hours
Step-by-step explanation:
Multiply the 4/5 by 4 to get the denominator as 20. So you do 4 x 4 which equals 16 and 5 x 4 which equals 20 so you get 16/20 miles or 16 hours.
We have the equation:
We have to find its roots with the quadratic formula:
![\begin{gathered} x^2+3x-40=0 \\ x=\frac{-3}{2\cdot1}\pm\frac{\sqrt[]{3^2-4\cdot1\cdot(-40)}}{2\cdot1} \\ x=-\frac{3}{2}\pm\frac{\sqrt[]{9+160}}{2} \\ x=-\frac{3}{2}\pm\frac{\sqrt[]{169}}{2} \\ x=-\frac{3}{2}\pm\frac{13}{2} \\ x_1=-\frac{3}{2}-\frac{13}{2}=-\frac{16}{2}=-8 \\ x_2=-\frac{3}{2}+\frac{13}{2}=\frac{10}{2}=5 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20x%5E2%2B3x-40%3D0%20%5C%5C%20x%3D%5Cfrac%7B-3%7D%7B2%5Ccdot1%7D%5Cpm%5Cfrac%7B%5Csqrt%5B%5D%7B3%5E2-4%5Ccdot1%5Ccdot%28-40%29%7D%7D%7B2%5Ccdot1%7D%20%5C%5C%20x%3D-%5Cfrac%7B3%7D%7B2%7D%5Cpm%5Cfrac%7B%5Csqrt%5B%5D%7B9%2B160%7D%7D%7B2%7D%20%5C%5C%20x%3D-%5Cfrac%7B3%7D%7B2%7D%5Cpm%5Cfrac%7B%5Csqrt%5B%5D%7B169%7D%7D%7B2%7D%20%5C%5C%20x%3D-%5Cfrac%7B3%7D%7B2%7D%5Cpm%5Cfrac%7B13%7D%7B2%7D%20%5C%5C%20x_1%3D-%5Cfrac%7B3%7D%7B2%7D-%5Cfrac%7B13%7D%7B2%7D%3D-%5Cfrac%7B16%7D%7B2%7D%3D-8%20%5C%5C%20x_2%3D-%5Cfrac%7B3%7D%7B2%7D%2B%5Cfrac%7B13%7D%7B2%7D%3D%5Cfrac%7B10%7D%7B2%7D%3D5%20%5Cend%7Bgathered%7D)
Answer:
The roots (or solutions) of the equation are:
x1 = -8
x2 = 5
4.110= four and one hundred ten thousadths
4.10= four and ten hundredths
