100 POINTS 100 POINTS 100 POINTS 100 POINTS I WILL MARK BRAINLIEST
JUST ANSWER CORRECTLY THE ANSWER 12 IS WRONG PLEASE GIVE THE RIGHT ANSWER
Answer:
Step-by-step explanation:
given tanB= 4/3
so sinB=4/5
n cosB=3/5
given BC=15
BA=BC*cosB
=15*3/5
=9
AC=BC*sinA
=15*4/5
=12
Triangle ABC and DBE are similar by AAA
DB= BA-AD
=9-3
=6
DB/BA=DE/AC
6/9=DE/12
DE=12*6/9
=8
Answer:
DE = 8
Step-by-step explanation:
ΔABC and ΔDBE are similar.
As they share the same angles, the sides are in proportion to each other.
Therefore, we can solve using ratios.
Tan trigonometric ratio
[tex]\sf \tan(\theta)=\dfrac{O}{A}[/tex]
where:
[tex]\theta[/tex] is the angleO is the side opposite the angleA is the side adjacent the angleGiven:
[tex]\sf \tan (B)=\dfrac{4}{3}[/tex]
Therefore:
[tex]\implies \sf \dfrac{DE}{BD}=\dfrac{AC}{BA}=\dfrac{4x}{3x}[/tex]
We know that BC = 15 and that AC : BA = 4x : 3x
Using Pythagoras' Theorem:
[tex]\implies \sf (3x)^2+(4x)^2=15^2[/tex]
[tex]\implies \sf 9x^2+16x^2=225[/tex]
[tex]\implies \sf x^2(9+16)=225[/tex]
[tex]\implies \sf x^2=9[/tex]
[tex]\implies \sf x=3[/tex]
Therefore,
⇒ AC = 4 · 3 = 12
⇒ BA = 3 · 3 = 9
Now we have found the length of BA, we can find the length of BD:
⇒ BD = BA - DA
⇒ BD = 9 - 3
⇒ BD = 6
As DE : BD = 4x : 3x and BD = 6 then:
⇒ 3x = 6
⇒ x = 2
Therefore, to find DE, substitute x = 2:
⇒ DE = 4x
⇒ DE = 4(2)
⇒ DE = 8
What is 45 to the 3rd power?
Answer:
45³ = 91,125
Step-by-step explanation:
45 to the 3rd power = 45 cubed
= 45³
= 45 x 45 x 45
= 2025 x 45
= 91,125
2. What are the solutions to 16x2 - 12x = 54? Select all that apply.
Answer:
x=-3/2, 9/4
Step-by-step explanation:
Write the following equation in slope-intercept form and identify the slope and y-intercept.
X + y = 12
The equation in slope-intercept form is y =
Answer:
Your answer is
slope is -1
y intercept is 12
Hope that this is helpful. Tap the crown button, Like & Follow me
What is the difference between largest and smallest fraction below?
1/5 7/20 3/10
which is the graph of the linear equation Y is greater than or equal to negative X -3
Answer:
yea
Step-by-step explanation:
What is the answer? Yes or no
Answer:
Yes
Step-by-step explanation:
4 is less than 9
Answer:
yes
Step-by-step explanation:
True or False. Shapes that have at least one right angle also have at least one pair of perpendicular lines. Explain your thinking.
Answer:
True
Step-by-step explanation:
In geometry, the property of being perpendicular is the relationship between two lines which meet at a right angle.
I need help with geometry on finding the area of the triangle or trapezoid with these three problems
Answer:
o7ddp7dp77s7ssdtldl9sp5as 8y6f9d8tzl4zl5zp6so68sp68o5s884aa4455665655666b is 45678900 is answer
A school is going on a field trip to a museum. The ratio of men to women to children is 1:3:20 and there are 216 people on this trip. What is the difference between the number of children and adults?
Answer:The difference between the number of children and adults=153
Step-by-step explanation:
ratio of men to women to children is 1:3:20
Total RATIO = 1+ 3+ 20= 24
Number of men = ratio of men / Total ratio x Total Number of people on the trip =
= 1/24 x 216= 9 men
Number of women=ratio of women / Total ratio x Total Number of people on the trip = 3/ 24 x 216 = 3x 9= 27 women
Number of children=ratio of Children/ Total ratio x Total Number of people on the trip = 20/24 x 216= 20 x9 = 180 children
The difference between the number of children and adults will be 180 -27 = 153
help me what should i put! i’ll give brainliest
What is the equation of the line that passes through the point (5, 0) and has a
slope of -1?
Answer:
y-0= -1(x-5)
y= -x+5
x+y-5=0
Answer:
y=-x+5
Step-by-step explanation:
y-y1=m(x-x1)
y-0=-1(x-5)
y=-x+5
Pls help
Zoom in to view
Thanks
Answer:
1. x=6 y=6
2. x=3√2 y=3
3. a=5√2 b = 5
4. u=2 v=√2
5. x=2√2 y=2
6. x=6 y=3√2
Step-by-step explanation:
Which of the following expressions give the distance between the endpoints of the segment shown on the number line below? Select all that apply
Questions:
A)|−35−(−45)|
B)|−35−45|
C)−35−45
D)|35−45|
E)|45−(−35)|
Ans
3.21343253
Step-by-step explanation:
- 2x + 7y< -14
4x+3y> -12
Answer:
Given inequalities:
- 2x + 7y < -14 4x + 3y > -12Solution is attached
The first inequality is zone AThe second inequality is zone BIntersection of two zones is the solution: zone ABIf a child weighs 97 pounds, how many ounces does she weigh?
Answer:
1552
Step-by-step explanation:
Probably anyway
if the original quantity is 12 and the new quantity is 15, what is the percentage increase
Answer:
25%
Step-by-step explanation:
Given data
original quantity =12
new quantity =15
% increase= new-original/original *100
% increase= 15-12/12 *100
% increase= 3/12 *100
% increase=0.25 *100
% increase=25%
hence the increase is 25%
Can someone pls helppp
Answer:
yq
Step-by-step explanation:
(18—12)^2+(16/4)/-10+12
Find the simplest form
Juan made 3 identical necklaces each having beads and a pendent the total cost of the beads and pendent for all 3 necklaces was $19.20. If the beads cost $2.80 for each necklace, how much did each pendant cost?
Help I gave 30 points
Answer:
Step-by-step explanation:
2.80 x 3 = 8.40 so 19.20-8.40=10.8 then 10.80/3= 3.60
2. Find the glven angle, to the nearest degree.
48
?
50
Answer:
46.16
Step-by-step explanation:
[tex]B=arcsin(\frac{opp}{hyp} )[/tex]
good luck, i hope this helps :)
Evaluate the algebraic expression x^2 - 20 for x = 7 and for x = 9
Answer:
29
61
Step-by-step explanation:
x^2 - 20
x = 7 and 9
Evaluate
___________
We know the values of x, let's substitute them with the x in the problem :
(7)^2 - 20
49 - 20
29
(9)^2 - 20
81 - 20
61
In the figure below, find the exact value of z.
9514 1404 393
Answer:
z = 9/2
Step-by-step explanation:
The triangles in the figure are all similar, so the side lengths are proportional.
long side/hypotenuse = z/6 = 6/8
z = 36/8 = 9/2 . . . . multiply by 6
Can y’all help me with this I just need the equation...thanks ❤️
Answer:
350 - 200 = 150
150 is total games purchased
now divide 150 by 25
150 / 25 = 6
Timani bought 6 video games, and one console for 350
Solve system by elimination
9x + 3y = 24
10x - 2y = 0
Answer:
(1, 5 )
Step-by-step explanation:
Given the 2 equations
9x + 3y = 24 → (1)
10x - 2y = 0 → (2)
Multiplying (1) by 2 and (2) by 3 and adding the result will eliminate the y- term
18x + 6y = 48 → (3)
30x - 6y = 0 → (4)
Add (3) and (4) term by term to eliminate y
48x + 0 = 48
48x = 48 ( divide both sides by 48 )
x = 1
Substitute x = 1 into either of the 2 equations and solve for y
Substituting into (1)
9(1) + 3y = 24
9 + 3y = 24 ( subtract 9 from both sides )
3y = 15 ( divide both sides by 3 )
y = 5
solution is (1, 5 )
Sully has a loan which he repays every month. If the loan amount includes interest, his loan amount due, in dollars, after t years, is shown by the following expression.
7,000(0.90)^12t
Which statement below best describes the coefficient, 7,000?
A. The number of times sully repaid the loan since he began making payments
B. Sully’s initial loan amount
C. The decrease in Sully’s loan amount every month
D. The rate at which Sully repays the loan
i would say its B. The initial loan amount
Answer:
Sully's initial loan amount
edit: i accidently rated my answer as 1 star but i promise its right
A bag contains red and green marbles of equal size. There are more red marbles than green marbles in the bag. A marble is chosen from the bag without looking. Which point could represent the probability that a red marble is chosen? A B C D E
what is the equation of the line that passes through the point(4,12) and has a y-intercept of -2?
Answer:
y=3.5x-2
Step-by-step explanation:
y=mx+c
12=m×4-2
add 2 on both sides
14=m×4
divide by 4 on both sides
3.5=m
y=3.5x-2
Can someone help ASAP pls
Answer:
Step-by-step explanation:
first the answer is most definenetly 130 and 160 and i dont think its 30 so 50.
is this correct?
if not does anybody know which one it is
Answer:
hey, i just did this question and double checked everything and i got a different answer.
So C, =x^2−25 should be the correct one
Step-by-step explanation:
good luck on the test