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andrew-mc [135]
3 years ago
10

If someone could help it would be great :)

Mathematics
1 answer:
malfutka [58]3 years ago
3 0

Answer:

2.2

Step-by-step explanation:

<u>  -6-5  </u> = -11/-5=2.2

-9-(-4)

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Louis has $300 to spend on a pair of skis. Sales tax is 8.5%
Marina86 [1]

Answer:They are all Less Than

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
. Using the Binomial Theorem explicitly, give the 15th term in the expansion of (-2x + 1)^19
timofeeve [1]
Let's rewrite the binomial as:
(1 - 2x)^{19}

\text{Binomial expansion:} (1 + x)^{n} = \sum_{r = 0}^n\left(\begin{array}{ccc}n\\r\end{array}\right) (x)^{r}

Using the binomial expansion, we get:
\text{Binomial expansion: } (1 - 2x)^{19} = \sum_{r = 0}^{19}\left(\begin{array}{ccc}19\\r\end{array}\right) (-2x)^{r}

For the 15th term, we want the term where r is equal to 14, because of the fact that the first term starts when r = 0. Thus, for the 15th term, we need to include the 0th or the first term of the binomial expansion.

Thus, the fifteenth term is:
\text{Binomial expansion (15th term):} \left(\begin{array}{ccc}19\\14\end{array}\right) (-2x)^{14}
3 0
4 years ago
Could I get some help with this question on Trigonometric Identities?
Oksana_A [137]
\bf 1-\cfrac{tan(\theta )cos(\theta )}{csc(\theta )}\implies 1-\cfrac{\frac{sin(\theta )}{cos(\theta )}cos(\theta )}{csc(\theta )}&#10;\\\\\\&#10;\boxed{1-\cfrac{\frac{sin(\theta )}{\underline{cos(\theta )}}\cdot \underline{cos(\theta )}}{\frac{1}{sin(\theta )}}\implies 1-\cfrac{sin(\theta )}{\frac{1}{sin(\theta )}}}\implies 1-sin(\theta )sin(\theta )
8 0
3 years ago
4. How much time will it take for a bug to travel 7.5 meters across the floor if it is traveling at 1 m/s?
scZoUnD [109]

It will take the bug 7.5s to travel across the floor.

Step-by-step explanation:

Distance = 7.5 meters

Speed = 1 m/s

The formula for speed is

Speed = \frac{Distance}{Time}\\\\Time = \frac{Distance}{Speed}\\Time=\frac{7.5}{1}\\Time=7.5\ s

It will take the bug 7.5s to travel across the floor.

Keywords: distance, speed

Learn more about distance at:

  • brainly.com/question/4460262
  • brainly.com/question/4464845

#LearnwithBrainly

4 0
4 years ago
I need help an explanation
Ne4ueva [31]

Answer:

45°

Step-by-step explanation:

3x + 4x + 5x = 180° **

12x = 180° / :12

x = 15°

m<A = 3×15 = 45°

** There is a law that the sum of all the angles in a triangle is equal to 180°

8 0
3 years ago
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