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4 years ago

5. What is angel 8 use picture above

Mathematics

2 answers:

Vikki [24]4 years ago

6 0

Answer:

Angle 8 = Angle 4

Step-by-step explanation:

velikii [3]4 years ago

5 0

Answer:

4. ∠3 and ∠5

5. 75°

Step-by-step explanation:

4. Same-side interior angles.

If you look at the figure, the INTERIOR angles are those between the two parallel lines (JL and MP), these are angles #3, #4, #5 and #6. The other angles are exterior angles.

The question asks for same-side... meaning both on the left of NK or on the right side of it. So, the two sets that match this are: 3 with 5 and 4 with 6.

The last option gives you ∠3 and ∠5, so that's your answer.

That makes sense since angles 1 and 2, present in all other choices, are exterior angles.

5. If ∠4 = 75 degrees, what's the value of ∠8?

Since JL and MP are parallel lines crossed by another line (NK), we know that ∠4 and ∠8 will have the same measurement. Those two angles are located on the same position compared to each other and one of the parallel line.

So, since ∠3 = 75°, ∠8 also has to be 75°, same for their opposing angles 2 and 5. While the other angles are complements... so they're 105 degrees angles.

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HELP ASAP

Vlad1618 [11]

The correct true statement is the swimmer comes back up 9 seconds after the timer was started.

<h3>Maximum height of a function</h3>

The maximum height of a function is the point where the velocity the body is zero.

Given the function that represent the height of the swimmer as h(t)=t^2−12t+27

If the velocity of the function is zero, hence;

h'(t) = 2t - 12

0 = 2t - 12

2t = 12

t = 6secs

Substitute t = 6 into the function as shown:

h(6) = 6^2−12(6)+27

h(6) = 36 - 72 + 27

h(6) = -36 + 27

h(6) = -9 feet

Hence the correct true statement is the swimmer comes back up 9 seconds after the timer was started.

Learn more on maximum height here: brainly.com/question/23144757

#SPJ1

7 0

2 years ago

HELP ASAP!! I WILL MARK BRAINLIEST IF YOU ARE CORRECT!!

vodomira [7]

Answer:

=4sqrt(10)

Step-by-step explanation:

The geometric mean of two numbers is sqrt(a*b) where a and b are the two numbers

geometric mean = sqrt(8*20)

=sqrt(160)

= sqrt(16*10)

We know that sqrt(ab) = sqrt(a) sqrt(b)

=sqrt(16) sqrt(10)

=4sqrt(10)

5 0

3 years ago

There are 13 books on a shelf. 7 of these books are new. The rest of them are used.

emmainna [20.7K]

Answer:

6 of them are used books

Step-by-step explanation:

6+7=13. 7 new book and add 6 more book that will be used, it will equal out in addition = 13

3 0

3 years ago

Mrs. Snell's math test has twenty questions and is worth 100 points. The test consists of multiple choice questions worth 3 poin

Irina18 [472]

Answer:

The number of multiple-choice questions are 15.

Step-by-step explanation:

Mrs. Snell's math test has twenty questions and is worth 100 points.

The test consists of multiple-choice questions and short answer questions.

Let M represents the Multiple choice questions.

Let S represents the short answer question.

It is given that the total number of question are 20.

$S+M=20$ ...(1)

Also, multiple-choice questions worth 3 points each, and short answer questions worth 11 points each. The total worth of the test is 100 points.

$11S+3M=100$ ...(2)

Multiply equation (1) by 3 and subtract from equation (2).

$11S+3M=100\\3S+3M=60\\\underline{-\:\:\: -\:\:\:\:\:\:\:\:-\:\:\:\:\:\:}\\8S\:\:\:\:\:\:\:\:\:\:\:\:\:=40\\S\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:=5$

The total number of short answers is 5.

Put S=5 in equation 1.

$5+M=20\\M=15$

Hence, the number of multiple-choice questions are 15.

3 0

4 years ago

Volume of hemisphere when radius is 11?

Alex_Xolod [135]

Answer: The volume of is 2787.639

Step-by-step explanation:

-To find the volume of the hemisphere you need this equation:

$V = \frac{2\pi r^3}{3}$

-Put the radius to the equation in order to solve and get the volume:

$V=\frac{2\pi 11^3 }{3}$

-Then, you solve it:

$V=\frac{2\pi*11^3 }{3}$

$V = \frac{2\pi* 1331 }{3}$

$V = \frac{2662\pi }{3} = 2787.639$

7 0

4 years ago