Would appreciate help on these 4 :D

Answer:a) ∠BDE is 60° because ΔBDE is an equilateral triangle with all three angles = 60°.

Step-by-step explanation:

b) ∠CDB = 120° because 180° - 60° = 120°

Answer:

A person's VO2max measurement is generally considered the best indicator of cardiovascular fitness and aerobic endurance. [ -is the relationship between VO2max and cardiorespiratory exercise. ]

Step-by-step explanation:

this is shoRT but helps

Answer:

red line

the red line has a slope of -1 by looking at the coordinates,

it also intersects the given point (1,-1)

Answer:

The distributive property of multiplication over addition: Multiplying a sum by a number is the same as multiplying each addend by the number and then adding the products. ... The distributive property of multiplication over subtraction.

Step-by-step explanation:

Answer:

D. First, add 32 to both sides, then divide by -16 and flip the sign

Step-by-step explanation:

Taking that the inequality is -16k-32>-48

First you have to get rid of any addition or subtraction, in this case you have to get rid of -32 by adding 32 to each side:

-16k-32+32 > -48 +32

Then you need to divide by -16 and flip the sign because you are dividing by a negative number and if you don't flip the sign the inequality will be false.

[tex]\frac{-16k}{-16} <\frac{-16}{-16}[/tex]

Answer:

Math SMH

Step-by-step explanation:

Since the distances were the same you can find the average speed directly by adding the speeds then dividing by 2. No need to weight anything.

If we’re considering speed regardless of direction, the average speed is:

(24 + 16) / 2 = 40 / 2 = 20mph

However if direction matters, then one number has to be negative since the directions are opposite:

(24 - 16) / 2 = 8 / 2 = 4mph (in the positive direction)

Depending on the context, either of these could be your answer.

Answer:

19.2

Step-by-step explanation:

You have to trust me, this answer is correct. But here's my solution:

With the formula

Distance=Speed multiplied by Time, we can infer that Speed=Distance/Time.

But we only have one variable (Speed) in the two we need (Speed and Time), we have to pretend we have both variables. You can put the time as 1 hour, because that's the most basic unit. Note that this strategy will also work with 2 hours, 3 hours, or any measure of time.

So now for distance, let's see how fast a car can travel 24 miles. When going at 24 mph, then it'll take 1 hour. With 16 mph, then it'll take 1 hour and 30 minutes, so 1.5 or 3/2 hours.  

Now we have the distance, which is 2 times 24 (Because the 24 mph and 16 mph both traveled 24 miles), equaling 48, and time, which is 1 hour plus 1.5 hours, which is 2.5 hours.

Now we use the formula Speed=Distance/Time, with 48/2.5=19 1/5 or 19.2

DUBS

(Please consider giving a Brainliest. I spent lots of time on this, and it's honestly the best answer out of all!)

Answer: 5x + 6y = -8

Step-by-step explanation: i believe this is the answer but i might be wrong, let me know. hope I helped!

Answer:

y=x+11；

Step-by-step explanation:

Let's say the direct equation is y=kx+b;

Plug in the two points to get the system：

[tex]\left \{ {{16=5k+b} \atop {18=7k+b}} \right.[/tex]

So k is equal to 1, b is equal to 11，

so y=x+11；

Answer:

The answers for each are the following

A.) RPT

B.) NM

C.) X=7

Answer:

D

Step-by-step explanation:

According to the Pythagorean theorem, if you call the 2 legs of a right triangle a and b respectively and call the length of the hypotenuse c, you have:

[tex]a^{2} + b^{2} = c^{2}[/tex]

=> [tex]36^{2} + 10^{2} =[/tex] [tex]hypotenuse ^{2}[/tex]

=> 1396 = [tex]hypotenuse ^{2}[/tex]

=> hypotenuse = [tex]\sqrt{1396}[/tex] (inch)

=> Answer D

Answer:

same thing as adding 3/5 +3/5

total number of parts in a rectangle is 5

the product is 6/5 or 1 1/5

Using the information given, it is found that the 95% confidence interval for the proportion of all U.S. adults who experienced depression in that year is (0.075, 0.081).

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the z-score that has a p-value of [tex]\frac{1+\alpha}{2}[/tex].

3156 out of 40467 adults experienced depression, hence:

[tex]n = 40467, \pi = \frac{3156}{40467} = 0.078[/tex]

95% confidence level

So [tex]\alpha = 0.95[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.95}{2} = 0.975[/tex], so [tex]z = 1.96[/tex].  

The lower limit of this interval is:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.078 - 1.96\sqrt{\frac{0.078(0.922)}{40467}} = 0.075[/tex]

The upper limit of this interval is:

[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.078 + 1.96\sqrt{\frac{0.078(0.922)}{40467}} = 0.081[/tex]

The 95% confidence interval for the proportion of all U.S. adults who experienced depression in that year is (0.075, 0.081).

A similar problem is given at https://brainly.com/question/16807970

Answer:

30:56!

Step-by-step explanation:

since 30 boys is mentions first you can start it as that way

it helps me better and is way more efficient

Answer:

Step-by-step explanation:

6^2+ (59 - 4 ) = 36 + 55 = 91

I'm taking this to mean 11*2 If I am wrong leave a note.

11*2 = 22

91 / 22 = 4.14

Answer:

Step-by-step explanation:

You just need tp translate what is written in the two- column proof into paragraph.

Given that the two angles have same measure of 125°, by transitive property we proof that the angles are congruent.

We don't perform any of addition,  division or multiplication operations. We just compare the angle measures and come to conclusion.

This is best described in the paragraph C

Answer:

about 5k

Step-by-step explanation:

trust bro

Answer:

All three

Step-by-step explanation:

Hope this helps!

The answer choices that can be considered a binomial random variable are options A, B and C.

A binomial random variable is a variable that is used to count the frequency that a particular event occurs in a fixed number of trials.  

The conditions for a binomial random variable include:

To learn more about binomial random variable, please check: https://brainly.com/question/17139967

Answer:

True

Step-by-step explanation:

Answer:

x = 1.6 , y = 13.8

Step-by-step explanation:

y - 3x = 9 ( add 3x to both sides )

y = 9 + 3x → (1)

7x + y = 25 → (2)

Substitute y = 9 + 3x into (2)

7x + 9 + 3x = 25

10x + 9 = 25 ( subtract 9 from both sides )

10x = 16 ( divide both sides by 10 )

x = 1.6

Substitute x = 1.6 into (1)

y = 9 + 3(1.6) = 9 + 4.8 = 13.8

Answer:

25% increase

Step-by-step explanation:

formula for percent of change =  (new amount - original amount) / original amount; this will give you a decimal and multiply it by 100 to get the percent

(30 - 24) / 24

6/24 = 1/4 = 0.25

25% increase

Answer:

The price was dropped around 15%

Step-by-step explanation:

You will pay $3.15 for a item with original price of $3.70 when discounted 15%. In this example, if you buy an item at $3.70 with 15% discount, you will pay 3.70 - 0.555 = 3.15 dollars.

Answer:

20.7% is the % decrease.

Step-by-step explanation:

 If you are finding the % of decrease then see below.

% Decrease = (Original Cost - New Cost ) ÷ Original Cost  × 100

5.99 - 4.75 = 1.24

1.24 ÷ 5.99 = .2070

.2070 × 100 = 20.7%

Answer:

$7.20

Hope I helped

Answer:

.2 Gallons a minute

.2G/1m

25minutes until empty

Step-by-step explanation:

so the container lost 3 gallons in 15 minutes after that you changed it to how many minutes it took to lose 1 gallon by doing 15/3= 5

Now that you know 5/1 you divid 1/5 for an answer of 1/5 or .2 gallons a minute.

now you know that part two is easy

5/.2=25 which is the amount of times .2 gallon has to be removed from five and happens to also be the amount of minutes due to your solve from earlier.

Answer:

A,B, and D!

Step-by-step explanation:

Hope this helps!! :))

The set of values that satisfies the inequality is (-∝, 6)

Inequality shows the non-equal comparison between two numbers or other mathematical expressions.

Given the inequality: 3k – 6 < 12

Solving the inequality:

3k – 6 < 12

Add 6 to both sides:

3k - 6 + 6 < 12 + 6

3k < 18

Divide both sides of the equation by 3:

3k/3 < 18/3

k < 6

The set of values that satisfies the inequality is (-∝, 6)

Find out more at: https://brainly.com/question/25285332

Answer:

Sarah practices the Piano for 1.96666 Hours or 59/30 Hours

Step-by-step explanation:

0.33333 + 0.83333 = 1.16666

1.16666 + 0.8 = 1.96666

1.96666 = 59/30