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2 years ago

No link or bot answer the question

Mathematics

2 answers:

Oduvanchick [21]2 years ago

7 0

Answer:

5^11

Step-by-step explanation:

5^7/5^-7 is basically 5^7x5^7 which is 5^14. 5^14x5^-3 is 5^11.

Jobisdone [24]2 years ago

4 0

Answer:

5^11

Step-by-step explanation:

(5^-3)(5^14 )

= 5^11

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Find the endpoint of segment CD if D(-3, 1/2) and the midpoint is (-1/2, 3).

Juliette [100K]

Answer:

Step-by-step explanation:

(x - 3)/2 = -1/2

x - 3 = -1

x = 2

(y + 1/2)/2= 3

y + 0.5 = 6

y = 5.5

(2, 5.5) the other endpoint

4 0

3 years ago

If a=mg-kv2/m,find,correct to the nearest whole number the value of v when a=2.8,m=12,g=9.8 and k=8/3

RUDIKE [14]

Answer:

The value of $v$ is ± 22.729.

Step-by-step explanation:

Let be $a=m\cdot g -\frac{k\cdot v^{2}}{m}$ , the variable $v$ is now cleared:

$\frac{k\cdot v^{2}}{m}=m\cdot g -a$

$k\cdot v^{2} = m^{2}\cdot g- m\cdot a$

$v^{2} = \frac{m^{2}\cdot g - m\cdot a}{k}$

$v =\pm \sqrt{\frac{m^{2}\cdot g-m\cdot a}{k} }$

If $a = 2.8$ , $m=12$ , $g = 9.8$ and $k = \frac{8}{3}$ , the value of $v$ is:

$v=\pm \sqrt{\frac{(12)^{2}\cdot (9.8)-(12)\cdot (2.8)}{\frac{8}{3} } }$

$v \approx \pm 22.729$

The value of $v$ is ± 22.729.

6 0

3 years ago

PLEASE HELP ASAP!! No explanation needed. Just yes or no please!

nasty-shy [4]

Answer: A) Yes, it is a solution.

=================================================

Explanation:

Replace every x with -3 and simplify both sides.

3x - 2 < 2 - 2x

3(-3) - 2 < 2 - 2(-3)

-9 - 2 < 2 + 6

-11 < 8

Since -11 is to the left of 8 on the number line, this means the inequality -11 < 8 is true. Consequently, it means the first inequality is true when x = -3.

Therefore, x = -3 is a solution.

8 0

3 years ago

9 Given: p + q = 25. r + s = 25. q = r. Prove: p=s

MrRissso [65]

This is about simultaneous equations.

<u><em>p = s has been proved below. </em></u>

We are given;

p + q = 25 - - - (eq 1)

r + s = 25 - - - (eq 2)

q = r - - - (eq 3)

Let's put r for q in eq 1 to get;

p + r = 25 - - -(eq 4)

Let's subtract eq 2 from eq 4;

(p + r) - (r + s) = 25 - 25

p + r - r - s = 0

p - s = 0

p = s

Read more at; brainly.com/question/15165519

5 0

3 years ago

Suppose that the speeds of cars travelling on California freeways are normally distributed with a mean of miles/hour. The highwa

Readme [11.4K]

Answer:

the standard deviation of the speeds of cars travelling on California freeways is 6.0 miles per hour

Step-by-step explanation:

The computation of the standard deviation of the speeds of cars is shown below;

The z score for the top 1% is 2.326

So,

= (75 - 61) ÷ standard deviation = 2.326

Standard deviation is

= 14 ÷ 2.326

= 6.0 miles per hour

Hence, the standard deviation of the speeds of cars travelling on California freeways is 6.0 miles per hour

4 0

3 years ago