1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ANEK [815]
3 years ago
13

A train travels from city a to city b and then to city

Mathematics
1 answer:
solniwko [45]3 years ago
6 0
It would be 85 miles per hour your welcome for the answer
You might be interested in
Find the length of the unknown side.<br> 25 cm<br> 15 cm
AleksandrR [38]

Answer:

b = 20 cm.

Step-by-step explanation:

<u>Define and explain:</u>

This is a right triangle, so the Pythagorean Theorem applies.

The Pythagorean Theorem states that the sum of the squared legs will equal the squared length of the hypotenuse.

The legs of a triangle are the sides that form the right angle.

The hypotenuse is the longest side; the hypotenuse is always diagonal from the small square indicating a right angle.

<u>Solve:</u>

a^2+b^2=c^2

a,b-legs

c-hypotenuse

15^2+b^2=25^2

225+b^2=625

625-225=400

b^2=400

b=20

<u>Conclude:</u>

Therefore, the length of the unknown side is 20 centimeters.

3 0
2 years ago
How do you simplify expressions with exponents
Rzqust [24]

Answer:

You would use PEMDAS

Step-by-step explanation:

Parentheses first

Exponents second

Multiplication third

Division fourth

Addition fifth

Subtraction last

5 0
2 years ago
Solve the equation for 0° ≤ x ≤ 90°. Round to the nearest degree. 8cotθ + 3 = 5
galina1969 [7]

<u><em>Answer:</em></u>

θ = 76°

<u><em>Explanation:</em></u>

<u>The given equation is:</u>

8 cotθ + 3 = 5

8 cotθ = 5-3

8 cotθ = 2

cot θ = \frac{2}{8} = \frac{1}{4}

<u>Now, we find θ</u>

We know that the cot function is the inverse of the tan function.

The tan of an angle is positive in the first and third quadrants, therefore, the cot will be <u>positive</u> in the <u>first and third quadrants</u> as well

<u>Now, we are given the condition:</u>

0° ≤ x ≤ 90°

<u>Therefore, we know for sure that our angle is in the first quadrant</u>

θ = cot⁻¹(\frac{1}{4}) = 75.96° = 76° to the nearest degree

Hope this helps :)

5 0
3 years ago
A garden is designed in the shape of a rhombus formed from 4 identical 30°-60°-90° triangles. The shorter distance across the mi
EleoNora [17]

Answer:

c) 120 ft

Step-by-step explanation:

Let's consider the rhombus has 4 sides, A, B, C, and D.

To find the length of each side, let's first find the length AE.

From the diagram, AE is half of AC and AC = 30 ft.

Therefore,

AE = ½ * 30

AE = 15 ft

Let's find the length AD, since we are looking for the distance around the perimeter.

AD = \frac{15}{sin30} = \frac{15}{0.5} = 30 ft

We are told the rhombus is formed by four identical triangles.

Therefore the distance around the perimeter would be: AD+AD+AD+AD=

30 ft + 30 ft + 30 ft + 30 ft

= 120 ft

The distance around the perimeter of the garden is 120 ft

8 0
3 years ago
Read 2 more answers
Find the distance between the points (-3, 11) and (5, 5).<br><br> 10<br><br> 2<br><br> 2
Masja [62]
The correct answer is 10
7 0
3 years ago
Read 2 more answers
Other questions:
  • If a space of 18 inches is allowed for each person, how many persons can be seated in a row of bleacher seats 90 feet long?
    15·1 answer
  • How do you write the sum of 18 + 36 as the product of the GCF and another sum?
    12·1 answer
  • There are 30 nonfiction books and 34 fiction books in the teacher's collection. Which of the following expresses the ratio of fi
    13·2 answers
  • Retro Rides is a club for owners of vintage cars and motorcycles. Every year the club gets together for a ride. This year, 38 ve
    5·2 answers
  • I have two bags. Bag 1 contains 10 blue marbles, while Bag 2 contains 15 blue marbles. I pick one of the bags at random, and thr
    5·1 answer
  • ZD, ZE, and ZF are the perpendicular bisectors of ABC. Use that information to find the length of each segment. Not that the fig
    14·1 answer
  • A skateboard is on sale for 20% off the
    15·1 answer
  • Please, please help!!! and show work if possible!! tysm :)))
    5·1 answer
  • Please hurry please!
    9·1 answer
  • Help me with this two question please
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!