URGANT PLEASE HELP!!
Solve the triangle for x. (1 point)
A) 41.8°
B) 89.6°
C) 48.6°
D) 90.4°
Answers
Answer:
it looks like c
Step-by-step explanation:
its not quite 50 but its extreemly close so its got to be c
[tex]12 {}^{2} = 9 {}^{2} + 8 {}^{2} - 2(9)(8)(cosx)[/tex]
[tex]144 = 81 + 64 - 2(72)(cosx)[/tex]
[tex]144 = 145 - 144(cosx)[/tex]
[tex] - 144(cosx) = 144 - 145[/tex]
[tex](cosx) = \frac{ - 1}{ - 144} [/tex]
[tex]arccos( \frac{1}{144} ) = > a = 89.6[/tex]
Related Questions
one number is four greater than another number.the sum of two numbers is 78.what are the two numbers?
Answers
Answer:
Step-by-step explanation:
27
Please help!!
The graph shows the height of a dolphin (in feet) as it jumps out of the water in relation to how many seconds pass. What type of function is it?
a. linear
b. exponential
c. quadratic
d. no text answer provided.
Answers
Answer:
c
Step-by-step explanation:
A quadratic function looks like a U, which is called a parabola.
What is the answer to this question..?. This is factoring polynomials with four terms .10ab+21−15a−14b
Answers
3p square +18p+25=0
Solve by completing the square.
Answers
Square root 3 × sin X ×1/square root 3 = 1× cos 2 X
Answers
Answer:
yes
no
Step-by-step explanation:
cos
(
2
x
)
−
√
3
sin
(
x
)
=
1
cos
(
2
x
)
-
3
sin
(
x
)
=
1
Factor
sin
(
x
)
sin
(
x
)
out of
−
2
sin
2
(
x
)
−
√
3
sin
(
x
)
-
2
sin
2
(
x
)
-
3
sin
(
x
)
.
Tap for more steps...
sin
(
x
)
(
−
2
sin
(
x
)
−
√
3
)
=
0
sin
(
x
)
(
-
2
sin
(
x
)
-
3
)
=
0
If any individual factor on the left side of the equation is equal to
0
0
, the entire expression will be equal to
0
0
.
sin
(
x
)
=
0
sin
(
x
)
=
0
−
2
sin
(
x
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−
√
3
=
0
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2
sin
(
x
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3
=
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(
x
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sin
(
x
)
equal to
0
0
and solve for
x
x
.
Tap for more steps...
x
=
2
π
n
,
π
+
2
π
n
x
=
2
π
n
,
π
+
2
π
n
, for any integer
n
n
Set
−
2
sin
(
x
)
−
√
3
-
2
sin
(
x
)
-
3
equal to
0
0
and solve for
x
x
.
Tap for more steps...
x
=
4
π
3
+
2
π
n
,
5
π
3
+
2
π
n
x
=
4
π
3
+
2
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n
,
5
π
3
+
2
π
n
, for any integer
n
n
The final solution is all the values that make
sin
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x
)
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−
2
sin
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x
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−
√
3
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=
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sin
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(
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2
sin
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)
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true.
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=
2
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,
π
+
2
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,
4
π
3
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2
π
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5
π
3
+
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π
n
x
=
2
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n
,
π
+
2
π
n
,
4
π
3
+
2
π
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,
5
π
3
+
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π
n
, for any integer
n
n
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2
π
n
2
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and
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2
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n
π
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π
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to
π
n
π
n
.
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=
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,
4
π
3
+
2
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n
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5
π
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+
2
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n
x
=
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,
4
π
3
+
2
π
n
,
5
π
3
+
2
π
n
, for any integer
n
x + 17 = -2x + 23
what is the answer to this ? and show me the work please
Answers
Answer:
2
Step-by-step explanation:
[tex]x + 17 = - 2x + 23 \\ \\ x + 2x = 23 - 17 \\ \\ 3x = 6 \\ \\ x = \frac{6}{3} \\ \\ x = 2[/tex]
Answer:
x = 2
Step-by-step explanation:
First, we will move all the xs to one side and everything else to the other side.
x + 17 = -2x + 23
+2x +2x
-17 -17
This gives us:
x + 2x = 23-17
Then we can just combine like terms:
3x = 6
And divide both sides by three:
x = 2
Jaime builds a corkboard that 45 inches tall and 63 inches wide. He wants to build a smaller corkboard with a similar shape for the kitchen. Which could be the dimensions of that corkboard?
Answers
Answer:
2835 its basically multiple
[tex] \sqrt[3]{6} [/tex]
how do I do this
Answers
Answer:
[tex]\sqrt[3]{6}[/tex]≈1.817
Step-by-step explanation:
I used my calculator
type 3 and then [tex]\sqrt[x]{}[/tex] 6
a room is 400 inches long and 300 inches wide. if the length is shortened to 10 inches how wide is the room
Answers
Answer:
Step-by-step explanation:
The room's width should remain unchanged at 300 inches.
If the question is asking room of the same area but length shortened to 10 inches, then the answer is 400*300/`10 = 12000 inches.
One thing the question lacking (The area of both room is same).
New length=L=400-10=390Width be x[tex]\\ \rm\rightarrowtail 400(300)=390x[/tex]
[tex]\\ \rm\rightarrowtail 120000=390x[/tex]
[tex]\\ \rm\rightarrowtail x=307.69[/tex]
What is the value of x in the equation −6 + x = −5? (1 point)
1
11
-1
-11
Answers
Answer: 1
Step-by-step explanation:
i will give u brianliest!
Answers
Answer:
a) 5.956x10^-24
b)8x10^29
In δxyz, z = 3.2 inches, x = 4.8 inches and ∠y=110°. find ∠z, to the nearest 10th of an degree
Answers
Answer: 27 degrees
Step-by-step explanation:
A shirt is on sale for 75% off the original price. If the original price of the shirt is 40 Dirhams. What is
the discounted price?
Answers
Answer:
The discounted price is 10 Dirhams
Step-by-step explanation:
75% of 40 dhs
0.75 of 40 dhs
0.75 × 40 dhs = 30 dhs
40 dhs - 30 dhs = 10 dhs
Answer:
30 Dirhams
Step-by-step explanation:
An alloy is composed of nickel, zinc, and copper in a 5:4:8 ratio. How many kilograms of each metal is needed to make 3.4 kg of this alloy?
Answers
Answer:
1 kg, 0.8 kg, 1.6 kg
Step-by-step explanation:
Add up each part in the ratio
5 + 4 + 8 = 17
Divide the mass of the alloy by 17
3.4/17 = 0.2
To find out how much of each metal is in the alloy multiply 0.2kg by how many parts of it are in the alloy.
Nickel - 5 parts
0.2 x 5 = 1 kg
Zinc - 4 parts
0.2 x 4 = 0.8 kg
Copper - 8 parts
0.2 x 8 = 1.6 kg
Answer:
Step-by-step explanation:
5x+4x+8x=3.4
17x=3.4
x=0.2
Nickel 1 kg
Zinc 0.8 kg
Copper 1.6 kg
Hope this helped :D
Un grupo de 25 estudiantes aportará $4.00 cada uno, para comprar una pizarra.
Si se reduce la cantidad de estudiantes a 20, ¿cuál será el aporte de cada
estudiante para comprar la pizarra?
Answers
Usando algebra, veremos que cada estudiante debe aportar $5.00.
¿Cuál será el aporte de cada estudiante?
En el caso en el que hay 25 estudiantes, cada uno aporta $4.00, entonces la cantidad total que se colecta es:
25*$4.00 = $100
Ahora, en el caso de que hay 20 estudiantes, cada uno aportara una cantidad x, de tal forma que:
20*x = $100
Debemos resolver la ecuación de arriba para x:
x = $100/20 = $5.00
Es decir cada estudiante debe aportar $5.00
Sí quiero aprender más sobre algebra, puedes leer:
https://brainly.com/question/24999712
Carlos found a stick that was
stick in decimal form?
4/100
meters long. How many meters long was the
Answers
Answer:
it was long 4cm because 4/100 meters is like 4cm/100cm. 1 meter is 100cm so thats why
Can someone help me on this question? I’ll give brainliest if you answer soon!!!
Answers
Answer:
3
Step-by-step explanation:
Look in picture for information;
~Learn with Lenvy~
Find the distance between the two points rounding to the nearest tenth (if necessary).
(-7, -7) and (1, -3)
Answers
Step-by-step explanation:
-7-(-7)
=-7+7
=0
1-(-3)
=1+3
=4
if a shopkeeper sold a watch for Rs 640 at a loss of 20%,find the cost price of the watch
Answers
Answer:
Rs 800
Step-by-step explanation:
Selling Price =Rs640
Loss=20%
Let the cost price of the watch be Rs x.
SP=CP-20%of CP
or, 640=x-x/5
or, 640=4x/5
or, 4x=640*5
or,x=3200/4
Therefore, x=Rs 800. The cost price of the watch is Rs 800.
If a chemical costs $3.54 for 20 ounces, what is the cost of 25 gallons of the chemical?
Answers
there are 128 fluid ounces in 1 gallon, that means that 25 gallons is 25 * 128 = 3200 ounces.
so if we know that for 20 ounces is 3.54, how much will it be for 3200 ounces?
[tex]\begin{array}{ccll} \$ & oz\\ \cline{1-2} 3.54 & 20\\ x& 3200 \end{array} \implies \cfrac{3.54}{x}=\cfrac{20}{3200}\implies \cfrac{3.54}{x}=\cfrac{1}{160}\implies 566.4=x[/tex]
A group of friends are having a 400 m race julze can run 25 meters in 4 seconds alex can run 60 meters in 10 seconds jaheim can run 6.5 meters Yuseph can run 100 meters in 15 seconds if each of them could keep their constant speed who would win the race explain your answer.
Answers
Answer:
Yuseph would win the race because he has the highest speed and will run 400m in 60 seconds
Step-by-step explanation:
Race = 400m
julze can run 25 meters in 4 seconds
= 400m / 25m × 4 seconds
= 16 × 4
= 64 seconds
alex can run 60 meters in 10 seconds
= 400m / 60m × 10 seconds
= 6.67 × 10
= 66.7 seconds
Yuseph can run 100 meters in 15 seconds
= 400/100 × 15 seconds
= 4 × 15
= 60 seconds
jaheim can run 6.5 meters
Yuseph would win the race because he has the highest speed and will run 400m in 60 seconds
9g − g + 4g − 8g − 2 = 18
plz
Answers
Answer:
g = 5
Step-by-step explanation:
Combine like terms on the left side.
9g - g + 4g -8g = 4g
4g - 2 = 18
Add 2 to both sides.
4g = 20
Divide both sides by 4.
g = 5
I need help please help
Answers
Answer:
Figure 2 and Figure 1 are scaled copies
Figure 2 is twice as High and Wide
Figure 4 is 1/4 as tall.
Step-by-step explanation:
5x+7y-x+2y+3x simplified
Answers
Answer:
7x+9y
Step-by-step explanation:
5x-x
=4x
4x+3x
=7x
7y+2y
=9y
write the equation of the line passes through the given points (0,-2) and (-9,-7)
what is the equation?
Answers
Answer:
[tex]y= \frac{5}{9}x - 2[/tex]
Step-by-step explanation:
Let's write the equation in the slope-intercept form! In the slope-intercept form, y= mx +c, m is the slope and c is the y-intercept.
[tex]\textcolor{blueviolet}{\text{\textcircled{1} Find \: the \: slope}}[/tex]
[tex]\boxed{ slope = \frac{y _{1} - y_2 }{x_1 - x_2} }[/tex]
where (x₁, y₁) is the first coordinate and (x₂, y₂) is the second coordinate
Slope
[tex] = \frac{ - 2 - ( - 7)}{0 - ( - 9)} [/tex]
[tex] = \frac{ - 2 + 7}{0 + 9} [/tex]
[tex] = \frac{5}{9} [/tex]
[tex]\textcolor{blueviolet}{\text{\textcircled{2} Substitute \: value \: of \: slope}}[/tex]
[tex]y = \frac{5}{9} x + c[/tex]
[tex]\textcolor{blueviolet}{\text{\textcircled{3} Substitute \: a \: pair \: of \: coordinates}}[/tex]
When x= 0, y= -2,
[tex] - 2 = \frac{5}{9} (0) + c[/tex]
c= -2
[tex]\textcolor{blueviolet}{\text{\textcircled{4} Substitute \: value \: of \: c}}[/tex]
[tex]\bf y= \frac{5}{9}x - 2[/tex]
There are 60 students in Class C. How many like pizza?
Answers
Answer:
71
Step-by-step explanation:
I think because it's not at 70 and it's not at 80 so 71 because it's between 70 and 80
Solve 2 1/3 divided by 3 1/2.
Answers
Answer:
Solve 2 1/3 divided by 3 1/2.
Step-by-step explanation:
Find the Pattern
12 ↦ −1
3 ↦ −4
0 ↦ −5
−1 ↦ −5.3…
−9 ↦ −8
I have to find a formula to get from the left number to the right number, but I cannot find the pattern. How do I do this, and what is the solution?
Answers
Answer: y = (1/3)x - 5
This is the same as writing [tex]y = \frac{1}{3}x-5[/tex]
======================================================
Explanation:
Assume we have a linear pattern matching the form y = mx+b.
The first row has x = 12 lead to y = -1
The second row has x = 3 lead to y = -4
This produces the two points (12,-1) and (3,-4)
Let's find the slope through those points.
m = (y2-y1)/(x2-x1)
m = (-4-(-1))/(3-12)
m = (-4+1)/(3-12)
m = -3/(-9)
m = 1/3
The slope is 1/3.
The y intercept is b = -5 since x = 0 leads to y = -5
We go from y = mx+b to y = (1/3)x - 5
--------------------------
To verify we have the correct equation, plug in each left side value as x values.
Let's try x = 12
y = (1/3)x - 5
y = (1/3)*12 - 5
y = 4 - 5
y = -1
This shows that the input x = 12 maps to the output y = -1
i.e. 12 ↦ −1 is the case here.
Repeat for x = 3
y = (1/3)x - 5
y = (1/3)*3 - 5
y = 1 - 5
y = -4
We can see that 3 ↦ −4 occurs.
I'll let you check the others, but you should find that the other mappings hold true as well. Therefore, the answer has been fully confirmed.
convert 15cm ^ 3 into m * m ^ 3
Answers
Answer:
15000mm³.
Step-by-step explanation:
Solution,
According to the question,
15cm³ → mm³
Then ,
15 × 1000 ( 1000 mm³ = cm³ )
= 15000mm³.
how do i do this??
5% of a number is equal to 9. What is the number?
Answers
Answer:
5% of a number is equal to 9.
Let the number be " x "
Then ,
[tex]\bold{5\% \: of \: x = 9} \\ \\ \bold\purple{ \frac{5}{100} \times x = 9} \\ \\ \bold{5x = 900 }\\ \\ \bold{x = \cancel\frac{900}{5}} \\ \\\fbox\pink{\ x = 180}[/tex]
hope helpful ~
Answer:
[tex]\displaystyle 180[/tex]
Step-by-step explanation:
Convert [tex]\displaystyle 5\%[/tex]to a fraction and divide nine by it:
[tex]\displaystyle 9 = 5\%{n} \hookrightarrow \frac{9}{\frac{1}{20}} = \frac{\frac{1}{20}n}{\frac{1}{20}} \\ \\ \boxed{180 = n}[/tex]
I am joyous to assist you at any time.