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
Charra [1.4K]
3 years ago
8

Please show your work.​

Mathematics
1 answer:
Nastasia [14]3 years ago
8 0

Answer:

1. 8.19, 2. 25.96, 3. 3.95

Step-by-step explanation:

use soh cah toa

1. cos is adjacent/hypotenuse

cos73=x/28

multiply both sides by 28

28cos73=x=8.186

2. sin is opposite over hypotenuse

sin68=x/28

multiply both sides by 28

28sin68=x=25.961

3. sin is opposite over hypotenuse

sin26=x/9

myltiply both sides by 9

9sin26=x=3.945

You might be interested in
Sofia tem 52 triângulos retângulos isósceles iguais. Ela quer fazer quadrados usando alguns desses triângulos. Ela pode fazer qu
oee [108]

Answer:

Portanto, o Sofia pode fazer 6 tamanhos diferentes

Step-by-step explanation:

A fim de sermos capazes de determinar efetivamente quantos quadrados de diferentes tamanhos podem ser formados a partir do triângulo isósceles 52, resolvemos isso usando a fórmula

2 (n + 1) Onde n = 0 e todos os inteiros positivos

em outro para obter um tamanho diferente para os quadrados, temos que adicionar mais triângulos para aumentar o tamanho

a) quando n = 0

2 (0 + 1) = 2 × 1 = 2 triângulos isósceles iguais

A união de 2 triângulos isósceles forma um quadrado. Este é o primeiro quadrado

= 1 quadrado

b) quando n = 1

2 (1 + 1) = 2 × 2 = 4 triângulos isósceles iguais = 1 quadrado

c) quando n = 2

2 (2 + 1) = 2 × 3 = 6 triângulos isósceles iguais = 1 quadrado

d) quando n = 3

2 (3 + 1) = 2 × 4 = 8 triângulos isósceles iguais = 1 quadrado

e) quando n = 4

2 (4 + 1) = 2 × 5 = 10 triângulos isósceles iguais = 1 quadrado

f) quando n = 5

2 (5 + 1) = 2 × 6 = 12 triângulos isósceles iguais = 1 quadrado

Adicionamos o número total de triângulos usados

2 + 4 + 6 + 8 + 10 + 12 = 42 triângulos

42 triângulos de 52 triângulos formariam 6 quadrados com tamanhos diferentes

Vamos fazer mais um, onde n = 6

g) quando n = 6

2 (6 + 1) = 2 × 7 = 14 triângulos isósceles iguais = 1 quadrado

2 + 4 + 6 + 8 + 10 + 12 + 14 = 56 triângulos

Isso já excedeu o número dado de triângulos em questão.

Portanto, o Sofia pode fazer 6 tamanhos diferentes de quadrados usando 42 triângulos isósceles iguais

8 0
3 years ago
Pls help ima give BRAINLIST and a like
Hoochie [10]

Answer:

the letter in the green box should be 3.

i believe the full equation should be y= -3/2 x+1

Step-by-step explanation:

the y side keeps decreasing by 1 1/2 which in improper fraction form is -3/2. the x side keeps increasing by 1.

7 0
3 years ago
A soup kettle has a capacity of 4.5 l. what is the kettle’s capacity in milliliters?(1 l = 1,000 ml)
wariber [46]
The answer is 450ml so hope this helps all of you who had this problem
8 0
3 years ago
Find the value of z in the following equation.<br> z + 3z + 25 = 125
Y_Kistochka [10]

Answer:

25

Step-by-step explanation:

z+3z+25=125

4z=100

z=25

3 0
3 years ago
Read 2 more answers
Evaluate the expression using order of operations. 3 x (20 – 5)
horrorfan [7]

Answer:

3 x 15

Step-by-step explanation:

aren't you trying to figure out what the expression is simplified?

8 0
3 years ago
Read 2 more answers
Other questions:
  • Find an equation for the linear function which has a slope of 8 and x intercept of 5
    14·1 answer
  • What is the significance of the ishango bone?
    7·2 answers
  • Please help me ........
    15·1 answer
  • Suppose v1 , v2 , v3 ,v4 are vectors in R3.
    9·1 answer
  • The price of all rail season tickets to London increased by 4%.
    10·1 answer
  • Which of the following is not a function?
    7·2 answers
  • Determine the value of x.
    10·1 answer
  • Which expression is equivalent to (9⋅5)2/3
    15·2 answers
  • Where does the line y=3x-5 cross the y axis?
    12·1 answer
  • Brainly for questions 4 &amp; 5
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!