Help me 15 pointttttssssss

How to you put y=(x-8)2+6 in number sense

SpyIntel [72]

Answer:

y = 2x-10

Step-by-step explanation:

just that is the way

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=0%20%3D%20%20%20-%204.9t%20%7B%7D%5E%7B2%7D%20%20%2B%2027t%20%2B%202.4" id="TexFormula1" title

marta [7]

$0 = - 4.9t {}^{2} + 27t + 2.4$
Convert decimals to fractions

$0 = - \frac{49}{10} t {}^{2} + 27t + \frac{12}{5}$
Multiply both sides by 10

$0 = - 49t {}^{2} + 270t + 24$
Move expression to the left.

$0 + 49t {}^{2} - 270t - 24 = 0$
Remove zero.

$49t {}^{2} - 270t - 24 = 0$ Solve the quadratic equation.

$t = \frac{ - ( - 270) + - \sqrt{( - 270) {}^{2} - 4 \times 49 \times ( - 24) } }{2 \times 49}$
Remove parenthesis and calculate.

$t = \frac{270 + - \sqrt{72900 + 4704} }{98}$
Add the numbers

$t = \frac{270 + - 77604}{98}$
Separate the solutions

$t = \frac{270 + \sqrt{77604} }{98} \\ t = \frac{270 - \sqrt{77604} }{98}$
The final solution are
$t1 = \frac{270 - \sqrt{77604} }{98} , t2 = \frac{270 + \sqrt{77604} }{98}$

7 0

3 years ago

Many non-profit groups ask for donations during December. Do men give higher monetary donations than women in the month of Decem

Lelu [443]

Answer:

For this case we want to test if do men give higher monetary donations than women in the month of December (alternative hypothesis) and the complement should be the null hypothesis. So then the sytem of hypothesis are:

Null hypothesis: $\mu_m -\mu_w \leq 0$

Alternative hypothesis : $\mu_m -\mu_w >0$

So then the best option would be:

d. Ha: mum -muw > 0

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

Solution to the problem

For this case we want to test if do men give higher monetary donations than women in the month of December (alternative hypothesis) and the complement should be the null hypothesis. So then the sytem of hypothesis are:

Null hypothesis: $\mu_m -\mu_w \leq 0$

Alternative hypothesis : $\mu_m -\mu_w >0$

So then the best option would be:

d. Ha: mum -muw > 0

3 0

3 years ago

True or false? The solution of tan x=3.284 is a linear measurement

butalik [34]

Answer:

False

Step-by-step explanation:

A linear measurement is a length measurement of something, expressed in a length unit, like centimeter, inches, yards, miles and so on. It's used only to measure length as opposed to surface/area, volume, and so on.

x = 3.284 is NOT a linear measurement.

The unit used in this expression is simply graph units, it's not a length measurement.

6 0

3 years ago

What is the solution for the equation 4x - 10 = 2x?<br> Ox=5<br> Ox=4<br> Ox=1<br> Ox= -1.67

Akimi4 [234]

Answer:

5

Step-by-step explanation:

4x-10=2x - Original equation

4x=2x+10 - Move constant to the right-hand side and change its sign

4x-2x=10 - Move variable to the left-hand side and change its sign

2x=10 - Combine like terms and divide both sides by 2

x=5 - Answer

Hope this helps!!!

7 0

3 years ago