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
marin [14]
3 years ago
9

Please answer this question

Mathematics
2 answers:
Gennadij [26K]3 years ago
7 0

Answer:

b

Step-by-step explanation:

vladimir2022 [97]3 years ago
4 0

Answer:

a

Step-by-step explanation:

You might be interested in
Right triangles abc and dbc with right angle c are given below. If cos(a)=15,ab=12 and cd=2, find the length of bd.
dmitriy555 [2]

see the attached figure to better understand the problem

we have that

cos(A)=\frac{1}{5} \\ AB=12\ units\\ CD=2\ units

Step 1

<u>Find the value of AC</u>

we know that

in the right triangle ABC

cos (A)=(AC/AB)\\AC=AB*cos(A)

substitute the values in the formula

AC=12*(1/5)\\ AC=2.4\ units

Step 2

<u>Find the value of BC</u>

we know that

in the right triangle ABC

Applying the Pythagorean Theorem

AB^{2} =AC^{2}+BC^{2}\\ BC^{2}=AB^{2} -AC^{2}

substitute the values

BC^{2}=12^{2} -2.4^{2}\\BC^{2}= 138.24\\ BC=11.76\ units

Step 3  

<u>Find the value of BD</u>

we know that

in the right triangle BCD

Applying the Pythagorean Theorem

BD^{2} =DC^{2}+BC^{2}

substitute the values  

BD^{2} =2^{2}+11.76^{2}

BD=11.93\ units

therefore

<u>the answer is</u>

the length of BD is 11.93 units

8 0
3 years ago
Read 2 more answers
The perimeter of a rectangular metal plate is 15 cm. Find the length of the rectangular plate (in decimals) whose width is 228 c
scoray [572]

The Solution.

Representing the problem in a diagram, we have

By formula,

P=2(L+W)

In this case,

P=15\operatorname{cm},L=?,W=\frac{22}{8}cm

Substituting these values in the formula above, we get

15=2(L+\frac{22}{8})

Clearing the bracket, we get

15=2L+(2\times\frac{22}{8})\begin{gathered} 15=2L+\frac{11}{2} \\  \\ 15=2L+5.5 \end{gathered}\begin{gathered} 15-5.5=2L \\ 9.5=2L \end{gathered}

Dividing both sides by 2, we get

L=\frac{9.5}{2}=4.75\approx4.8\operatorname{cm}

Therefore, the correct answer is option C.

6 0
9 months ago
Con las cuatro cartas que se muestran en la figura se pueden formar diferentes números. Por ejemplo: 8232 o 3822. ¿Cuántos númer
densk [106]

Answer:

Se pueden formar 9 números pares.

Step-by-step explanation:

Dado que con cuatro cartas se pueden formar diferentes números, como por ejemplo 8232 o 3822, para determinar cuántos números pares de cuatro dígitos y diferentes puedes formar con estas cuatro cartas se debe realizar la siguiente tabla:

8232 - 8322 - 8223 = 2 pares 1 impar

2832 - 2823 - 2382 - 2328 - 2283 - 2238 = 4 pares 2 impares

3822 - 3282 - 3228 = 3 pares

Por lo tanto, se pueden formar 9 números pares.

5 0
2 years ago
The pipe is leaking at 1.5 cups per day about how many gallons per week is the population
Inessa [10]
The question asks per week. So 1.5 cups times 7 days is 10.5 cups. 

The pipe leaks 10.5 cups every week.
6 0
3 years ago
I need help, anyone get this?
Lunna [17]
What is 75-50, then you subtract that answer from 180, because if it’s a triangle, all 3 sides should equal to 180
5 0
3 years ago
Read 2 more answers
Other questions:
  • You are going to mix a gallon bucket of window cleaner. The instructions direct you to mix 1 part cleaner to 3 parts water. How
    13·1 answer
  • What is the equation of a line that passes through points (0, 4) and (-4,-8)?​
    9·2 answers
  • Collin has t trading cards. Stacy has 13 more trading cards than Collin. Write an expression that shows how many trading cards S
    9·1 answer
  • Simplified <br> 2(x + 8) + 3(x -9)
    5·1 answer
  • Jo has baked 40 cakes for her husband's 40th birthday, one for each of his years, weighing 1, 2, 3 ... 40kg. She forgets which c
    6·1 answer
  • Find the measure of the angles
    9·1 answer
  • Write an explicit formula for an, the nth term of the sequence 40, 35, 30, ....
    8·2 answers
  • Find the unit rate: 340 birds seen in 5 hours
    11·2 answers
  • Help me pleasee (10 points)
    15·1 answer
  • Find three consecutive even numbers whose sum is 1884.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!