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
goblinko [34]
2 years ago
12

PLEASE PLEASE HELP ME WITH THIS QUESTION PLEASE AND SHOW YOUR STEPS PLEASE help me please

Mathematics
1 answer:
jeyben [28]2 years ago
5 0

Answer:

4a)= 2.1m    4b)= 1.9 m    5)= 29.6º

Step-by-step explanation:

4a):

x is the opp

AB is the hyp

BC is the adj

thus,

sin32 = x/4

cross multiply, x= 4*sin32

x= 2.1196.......

x=2.1 m

4b).

x is the hyp

ac is the opp

bc is the adj

thus,

cos65=4.5/x

cross multiply, x= 4.5*cos65

x=1.9017....

x=1.9 m

5).

AB is the opp

bc is the adj

ac is the hyp

thus:

tanC= 2.1/3.7

C= tan^-1 (2.1/3.7)

C= 29.5778.....

C= 29.6º

You might be interested in
1) Sir Arthur Conan Doyle used footprint evidence in 29 of the 60 stories he wrote about Sherlock Holmes, the British detective.
nalin [4]

Answer: D

Tracing

Step-by-step explanation:

Sir Arthur Conan Doyle, author of the Sherlock Holmes stories, was credited as an influence to forensic science due to his character's use of methods such as fingerprints, serology, ciphers, trace evidence, and footprints long before they were commonly used by actual British and American police forces.

8 0
3 years ago
Graph a line with a slope of.....
photoshop1234 [79]

Answer:

use google graph:)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
2/3x - 21/4 = 27/4 x=
EleoNora [17]

Answer: x=-63/73

Step-by-step explanation:

Multiply both sides by 12, Move constant to the right hand side and change its sign, Move variable to the left hand side and change its sign, collect like terms, divide both sides of the equation by -73, x=-63/73 (- 63 over 73)

6 0
3 years ago
Read 2 more answers
What is the focus of the parabola?<br><br> y=−14x2−2x−2
nataly862011 [7]
First, we need to transform the equation into its standard form (x - h)²=4p(y - k).
Using completing the square method:

y = -14x² - 2x - 2
y = -14(x² + 2x/14) - 2
y = -14(x² + 2x/14 + (2/28)²) -2 + (2/28)²
y = -14(x + 1/14)² - 391/196
-1/14(y + 391/196) = (x + 1/14)²

This is a vertical parabola and its focus <span>(h, k + p) is (-1/14, -391/196 + 1/56) = (-1/14, -775/392).

Or (-0.071,-1.977).</span>
3 0
2 years ago
How do I solve 1 and 2?
LuckyWell [14K]
H=+15 m
v=+5 m/s
Ball hits the ground when h(t)=-15m
h(t)=-9.8t^2+vt+h
=>
-15=-9.8t^2+5t+15
9.8t^2-5t-30=0
Solve for t, using quadratic formula,
t=-1.513 or t=2.023
reject negative root due to context, so
t=2.023 seconds

2)
h(t)=-16t^2+20t+8
a. height before pitch is when t=0, or h(0)=8
b. highest point reached when h'(t)=-32t+20=0 => t=5/8 seconds
c. highest point is t(5/8)=-16(5/8)^2+20(5/8)+8=47/5=9.4 m
d. ball hits ground when h(t)=0 => solve t for h(t)=0
=> t=-0.3187 seconds or t=1.569 seconds.
Reject negative root to give
time to hit ground = 1.569 since ball was pitched.

5 0
3 years ago
Other questions:
  • Chan hee purchased a bicycle for $259.99 and a helmet for $67. The sales tax rate is 8.25% What is the total purchase price to t
    15·2 answers
  • Fill in the table what is the constant rate?
    9·1 answer
  • When an opinion poll calls landline telephone numbers at random, approximately 30% of the numbers are working residential phone
    15·1 answer
  • What is the area of the largest rectangle that can be inscribed in an isosceles triangle with side lengths $8$, $\sqrt{80}$, and
    6·1 answer
  • Min makes a scale drawing of her rectangular garden using a scale of 1 to 25. Her garden measures 5 meters long by 3 meters wide
    11·1 answer
  • Tell whether each addition problem has a sum greater the 1/2.
    6·2 answers
  • 10 POINTS
    8·1 answer
  • If x varies inversley as y and x=4 when y =8, find x when y=1
    9·1 answer
  • 5th grade math. correct answer will be marked brainliest.
    12·1 answer
  • resent a combinatorial argument for this identity by considering a set of n people and determining, in two ways, the number of p
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!