Answer:
[tex]v=\dfrac{r-ht^2+2c}{-2t}[/tex]
Step-by-step explanation:
The given equation is :
[tex]r=ht^2 -2vt-2c[/tex]
We need to solve the above equation for v.
Subtract ht² from both sides.
r-ht²= ht²-2vt-2c-ht²
r-ht² = -2vt-2c
Adding 2c both sides,
r-ht² +2c= -2vt-2c+2c
r-ht² +2c = -2vt
Dividing both sides by (-2t)
[tex]v=\dfrac{r-ht^2+2c}{-2t}[/tex]
So, the value of v is equal to [tex]\dfrac{r-ht^2+2c}{-2t}[/tex].
i need help with 4ourth grade math lesson 8 homework helper asap math
Answer:
sure
Step-by-step explanation:
-3x + 4y = 7
2x + y = -1
Elimination method
[tex]\huge{ \mathfrak{ \underline{ Answer \: \: ✓ }}}[/tex]
The equations are :
-3x + 4y = 7. - [1]
2x + y = -1 - [2]
[tex] \underline{ \underline{ \bf{step} - 1}}[/tex]
multiply equation [2] with 4
[tex] \longrightarrow(2x + y = -1 ) \times 4[/tex]
[tex] \longrightarrow8x + 4y = - 4[/tex]
[tex] \underline{ \underline{ \bf{step} -2}}[/tex]
subtract equation [1] from [2]
[tex] \longrightarrow8x + 4y - ( - 3x + 4y) = - 4 - 7[/tex]
[tex] \longrightarrow8x + 4y + 3x - 4y = - 11[/tex]
[tex] \longrightarrow11x = - 11[/tex]
[tex] \longrightarrow \: x = - 1[/tex]
[tex] \underline{ \underline{ \bf{step} - 3}}[/tex]
plugging the value of x in equation [1]
[tex] \longrightarrow- 3x + 4y = 7[/tex]
[tex]\longrightarrow - (3 \times - 1) + 4y = 7[/tex]
[tex]\longrightarrow3 + 4y = 7[/tex]
[tex]\longrightarrow4y = 4[/tex]
[tex]\longrightarrow \: y = 1[/tex]
[tex] \#TeeNForeveR[/tex]
Plzzzzz helppppppp teachersssss
Answer:
1. tan(x) = 9/20
arctan(9/20) ≈ 24.23°
2. cos(x) = 17/32
arccos(17/32) ≈ 57.91°
3. tan(x) = 13/18
arctan ≈ 35.84°
4. sin(x) = 21/28
arcsin(21/28) ≈ 48.59°
Answer:
1 x = 24.2°
2 x = 57.9°
Step-by-step explanation:
You must memorize the definitions of the trig functions and then these problems are easy
1: tan = opposite side/adjacent side
opp side to x is 9 and adjacent side is 20
So, tan x = 9/20
x = arctan (9/20) = 24.2°
2: cos = adjacent side/hypotenuse
adjacent side = 17 and hypotenuse = 32
cos x = 17/32
x = arccos (17/32)
x = 57.9°
You do 3 and 4. Hint: Use the tan function in 3 and the sine function in 4
OK? You can do it!!!!
Which of the following are solutions to the inequality below select all that apply
( I need a lot of help with this)
The other choices are false, so choice C is the only solution here.
==================================================
Explanation:
Draw a number line. You'll have 0 in the center, with positive values on the right. The positive values increase 1,2,3,4,... as you move from left to right.
The negative values will go in the opposite direction. When going from right to left, we have -1, -2, -3, -4, ...
See the diagram below.
Now plot an open hole at -7 on the number line. The open hole says that we exclude this value from the solution set. Then we shade everything to the left of the open circle. This visually describes all values smaller than -7. Something like -2 is not to the left of -7, meaning -2 < -7 is false. But a value like -10 is to the left of -7, making -10 < -7 true.
With that in mind, the answer is n = -11 since -11 is to the left of -7. Of the values in the answer choices, it's the only thing to the left of -7.
The value n = -7 cannot be the solution because n < -7 would become -7 < -7 which is false.
ASAP WILL GIVE BRAINLIEST 73 POINTSS
Find the volume of the figure.
Volume =
Answer:
Solution given;
length[l]=20cm
for trapezoid
side 1=37cm
side 2=15cm
height[h]=25.7cm
we have
volume =area of trapezoid *length
=½*h(side 1+side2)*l=½*25.7(37+15)*2013364cm³the volume of the figure13364cm³.
birdseed cost $1.25 per pound how much does 6 pounds of birdseed cost
Answer:
7.5 for 6 pounds
Step-by-step explanation:
Find the measure of the angles D, E, and F
HELP PLZ
Answer:
D) 122
E) 30
F) 28
Step-by-step explanation:
Angle D:
value of angle across is equal to angle D = 122
Angle E:
value of angle across is equal to angle E = 30
Angle F:
180 - 122-30
Answer:
D) 122
E) 30
F) 28
Step-by-step explanation:
7pi/6 radians is what in degrees?
Step-by-step explanation:
7pi/6 radians = 7×180° /6 = 210°
Find the volume of the cone.
9 cm
r = 6 cm
V = [?] cm3
Round to the nearest tenth.
Step-by-step explanation:
[tex] \frac{1}{3} \pi {(6)}^{2} (9) \\ \frac{1}{3} \pi(36)(9) \\ \frac{1}{3} \pi(324) \\ 108\pi \\ 339.3 {cm}^{3} [/tex]
Three friends arrive at a party. Their arrival increases the number of people at the party by 20%. In total, how many people are now at the party
Answer:
18
Step-by-step explanation:
No of people joined=3
let x be people in begning
atq 3= 20/100x
x=20/100*3=15
no of people now=15+3=18
Which expression is equivalent to 28+7?
Answer:
35
Step-by-step explanation:
anything that gives u the same answer which is 35. so it can be 9+ 26 or 11+ 24 or 10+15 and so on
Answer:
35
Step-by-step explanation:
sum of two numbers be 95. if one exceeds the other by 15, find the number
Sum of two number = 95
Let the first number be x, then another number be x + 15.
According to the question, x + x + 15 = 95
=>2x+15=95
=>2x+15-15=95-15
=>2x=80
=>x=40
Hence, the first number = 40
And another number = 40 + 15 = 55.
Help me!!!!!!!!!!!!!!!
Answer:
look at the picture i have sent
Answer:
BHM = 64°
x = 16°
Step-by-step explanation:
BHL is 90° and MLH is 26°. This means to find BHM, we have to subtract 26 from 90.
90 - 26 = 64°
BHM = 64°
BHM is also equal to 4x.
So, to find x, divide 64 by 4. (64 = 4x --> 64 ÷ 4 = x)
64 ÷ 4 = 16
x = 16°
Given m||n, find the value of x , please help me I don't understand , I'm stressed lol
Answer:
x = 2
Step-by-step explanation:
because m || n, you can assume the two angles are congruent.
set them equal to each other:
5x - 4 = 4x - 2
solve
add 4 to both sides: 5x + (-4 + 4) = 4x + (-2 + 4) --> 5x = 4x + 2
subtract 4x from both sides: (5x - 4x) = (4x - 4x) + 2 --> x = 2
Use the graph to answer the following questions. image Activity 1 of 2 Part A: Is the relationship between the distance traveled and the time shown in the graph proportional? A. The relationship is proportional because the ratio of the variables is constant. B. The relationship is not proportional because the graph passes through the origin (0, 0). C. The relationship is proportional because the graph goes up by 5 every time. D. The relationship is not proportional because time increases by 2 and distance traveled increases by 5.
I don't see how to do this...............................
Step-by-step explanation:
So visually youre given the function
for h(-4) it can also be written as h(-4) = y
what do you get for y when you substitute - 4 for x?
All you have to do is trace the line until you get to x=-4 and then find the y that corresponds to it (looks like around y= - 1)
for the other one h(x) = - 5
what do you get for x when you substitute - 5 for y?
what you do is similar, trace the line along the y-axis and see what x-value you get for y =-5
Answer:
3 and x = 0
Step-by-step explanation:
To find the value of h(- 4)
Locate x = - 4 on the x- axis, go vertically up to meet the graph at (- 4, 3 )
Then the value of h(- 4) = 3
For h(x) = - 5
Locate y = - 5 on the y- axis. This is the point (0, - 5)
then the value of x for which h(x) = - 5 is x = 0
asnwer this its khan academy i only get one try
Answer:
C.
hope this helps
have a good day :)
Step-by-step explanation:
When Mr Lee was given a raise of 20%, his new salary was $1980.How much was his increase in his salary?
Answer:
$330
Step-by-step explanation:
to find how much he earned before raise:
1.2x = 1980
x = 1980/1.2
x = 1650
current salary: 1980
former salary: 1650
he makes $330 more
Answer:
330
Step-by-step explanation:
Can someone please help me on this!!
Answer:
(Look at image)
Step-by-step explanation:
(Also look at image)
CAN SOMEONE JUST CHECK MY ANSWER?
Answer:
you are absolutely correct .........
Marcus scored 100 points while playing 3 rounds of a game. Points Round 1 40 Round 2 20 Round 3 ? Total 100 How many points did he score in round 3? Fill in the blanks to solve the problem. let yra
Answer:
40 points
Step-by-step explanation:
40 + 20 = 60
100 - 60 = 40
so round three equals 40 points
Answer:
60 points in round 3
Step-by-step explanation:
Since the total is 100, and they already got 40 points (from round 1 and 2) then just subtract them from the total to find what you got in round 3.
3x^2+3x^2=42
xy=-15
Find the value of (x-y)^2
Answer:
wrong question
Step-by-step explanation:
[tex]wrong question[/tex]
Find all zeros. Choose all answers that apply.
f(x) = -x3 + 4x² + 5x
O A. X = -5
B. X = -1
O C. x = 0
O D. x = 1
If c = 5 what is the perimeter of the house?
I’m marking branliest
which two integers does √5 go between?
Answer:
The two integers are 2 and 3
Step-by-step explanation:
√5
=2.2
Which number from the data set 1, 1, 1, 2, 2, 3, 4, 5,5, and 25 is an outlier?
The angle measurements in the diagram are represented by the following expressions
ZA = 8r+6
B = 4.1 +38
Solve for x and then find the measure of B:
_B =
answer:
∠B = 70°
step-by-step explanation:
as you can see, the angle are alternate exterior anglestherefore, they are EQUALwe can set them equal to each and solve for x first∠A = ∠B
8x + 6 = 4x + 38
4x + 6 = 38
4x = 32
x = 8
now, we will plug in x in the expression for B to find B4(8) + 38
32 + 38
= 70
therefore, ∠B = 70° and x = 8What is the volume of a
cube that has one side of ||
cm?
Answer:
5
Step-by-step explanation:
633 yess sjs this is rhe im doing this for points
Answer: V=a3
Step-by-step explanation:
If I can type 120 words in 3 minutes, what is my rate per minute?
Answer:
40 words per minute
Step-by-step explanation:
[tex]\frac{1}{y} :\frac{3}{120}[/tex]
y · 3 = 1 · 120
3y = 120
3y ÷ 3 = 120 ÷ 3
y = 40
Answer:
1. 40 words per minute
Step-by-step explanation:
3 minutes = 120 words
1 minute = 120/3 = 40 words
it doesn't let me post pitures
Answer:
me neither!
what's wrong with this app?