Mathematics High School

17) HELP I have the answer I just need to show the work

Which trig ratio or formula should you use to find “c”?

Answer: B

Don’t give me the answer I already know it just show the work pls

17) HELP I Have The Answer I Just Need To Show The Work Which Trig Ratio Or Formula Should You Use To

Answers

Answer 1

Here

cos25°=BC/AB=8/c

c=8/cos25°

so cos function is helpful here

really a dum.beannie

Answer 2

Answer:

b) cos25

c = 7.248 or 7.2

Step-by-step explanation:

Cosine = [tex]\frac{adjacent}{hypothenuse}[/tex]

Cos 25 = [tex]\frac{8}{c}[/tex]

Cos of 25 is 0.906

0.906 = [tex]\frac{8}{c}[/tex]

Multiply 8 on both sides:

0.906 x 8 = [tex]\frac{8}{c}[/tex] x 8

7.248 = c

Related Questions

The circumference of a circle is m. What is the area , in square meters ? Express your answer in terms of pi

Answers

Answer:

area = m²/2π

Step-by-step explanation:

∵ circumference of circle = 2πr = m

∴ r = m/2π

∵ area of circle = πr²

∴ area of circle = (m/2π)² × π = m²/2π² × π = m²/2π

hope this helps

skracanie ułamków

224/100 =
308/100 =
125/1000=
444\1000 =

Answers

Answer:

224/100 = 2 24/100

= 2 6/25

308/100 = 3 8/100

= 3 2/25

125/1000 = ⅛

444/1000 = 111/250

I need this answer ASAP! Please help!
A ladder is leaning against a building. The ladder forms an angle of 77° with the ground. The distance from the base of the ladder to the base of the building is 8 feet.

Answers

Answer:

Step-by-step explanation:

sin77=h/8

h=8sin77

h=8(0.9744)

h=7.7952ft

What is 2x+7y=28 in slope intercept form

Answers

Answer:

y = -2/7x + 4

Express 12 as a sum, a difference, a product, and a quotient.

Answers

6+6, 13-1, 6x2, 24/2
5+ 7 =12
100- 88 =12
3x 4 = 12
24 divided by 2 =12

PLS HELP I WILL DO ANYTHING

Answers

Answer:

the solution for x is x=40

PLEASE HELPPP! I have to solve for X, this was my warmup but I'm not smart and I need to turn it in today!

Answers

Answer:

X=8

Step-by-step explanation:

48+22=70

4×8=48

so X is 8

Solve each equation.

d(d+3)-d(d-4)=9d-16

Answers

Answer:

2d+3d-2d+4d= 9d-16

2d is cancelled

3d+4d=9d-16

7d=9d-16

16=9d-7d

16=2

16/2

d=8

Evaluate using P E M D A S 2 x 3 + 4

Answers

Step-by-step explanation:

We would do multiplication first, because of order of operations.

2x3=6

Now we add.

6+4=10

hope it helps! :3

First (2•3)+4
Then 6+4
Equals =10

If the edge length of a cube is 13 feet, what is the correct way to write the expression to represent the volume of the cube in exponential form? (2 points)

Answers

Answer:

take side as a

volume of cube=a×a×a

= 13×13×13

(im so sorry if im wrong)

10,000-99 what does it mean and what does it add up to i am confused

Answers

9901 is the answer what do you mean add up it’s subtraction

Can someone plz help me! Thx!

Answers

Answer:

q

Step-by-step explanation:

a

Answer:

Step-by-step explanation:

PLS HELP PLSSSSS PLSSSSSS PLSSSSSSSS PLSSSSSSSSSSSSSS HIRRRYYYYYYYYYYYYYYYYYYYYYYYY

Answers

Answer:

74

Step-by-step explanation:

the top two are 5 cm each angled sides and it completely added up to 74

If x=−5⁢, what is the value of 7−x(2x+1)?

Answers

Answjnweijfbiqwerf

Step-by-step explanation:

What is the base of the triangle? Pls I need it ASAP

Answers

Answer: 10 I think not sure

Step-by-step explanation: 1/2 base times height-> 1/2(6•10)

A triangle is B x H divided by 2. If the area is 30, then to work backwards we multiply it by 2. That gets us 60, and if one of the sides is 6, that can only mean it’s 10

Please help!

(Vieta's Formulas) Let [tex]r[/tex], [tex]s[/tex], and [tex]t[/tex] be solutions to the equation [tex]$2x^3 - 3x^2 + 4x - 1 = 0$[/tex]. Find [tex]$r^2+s^2+t^2$[/tex].


Please include an explanation as well :)

Answers

We are given the polynomial:

2x³ - 3x² + 4x - 1 = 0

We need to find the value of r² + s² + t² where r,s,t are the solutions.

Simplifying r² + s² + t²:

r² + s² + t² = (r + s + t)² - 2(rs + st + rt)

[since a²+b²+c² = (a+b+c)² - 2(ab + bc + ca)]

Using the Vieta's formulae:

Above, we can see that in order to find the value of r² + s² + t², we need to find the value of the sum of solutions and sum of solutions taken 2 at a time.

Sum of roots:

We know that the Vieta's formula to find the sum of roots is:

Sum of roots = [tex]-\frac{b}{a}[/tex]

Where b and a are the coefficients from the general form: ax³ + bx² + cx - d

We notice that for the given equation, b = -3 ;  a = 2

Sum of roots = [tex]-(\frac{-3}{2})[/tex]

Sum of roots = [tex]\frac{3}{2}[/tex]

Hence, the sum of roots (r + s + t) = 3/2

Sum of roots taken two at a time:

We know that the Vieta's formula to find the sum of roots taken 2 at a time is: Sum of roots taken 2 at a time = [tex]\frac{c}{a}[/tex]

Where c and a are the coefficients from the general form: ax³ + bx² + cx - d

for the given equation, c = 4 ; a = 2

Sum of roots taken 2 at a time = [tex]\frac{4}{2}[/tex]

Sum of roots taken 2 at a time = 2

Hence, the sum of roots taken 2 at a time (rs + st + rt) = 2

Finding the value of r² + s² + t²:

We proved before that:

r² + s² + t² = (r + s + t)² - 2(rs + st + rt)

now that we know the values of (r + s + t) and (rs + st + rt), we can plug those values to get our answer

r² + s² + t² = ([tex]\frac{3}{2}[/tex])² - 2(2)

r² + s² + t² = ([tex]\frac{9}{4\\}[/tex]) - 4

r² + s² + t² = [tex]\frac{9 - 16}{4\\}[/tex]

r² + s² + t² = [tex]\frac{-7}{4}[/tex] = -1.75

Hence, the value of r² + s² + t² is -1.75

What is the factorization of the trinomial below?
-2x^3-10x^2-12x

Answers

Answer: -2x (x+3) (x+2)

Step-by-step explanation:

Answer:

(−2x)(x+2)(x+3)

Step-by-step explanation:

−2x3−10x2−12x

=(−2x)(x+2)(x+3)

Answer:

(−2x)(x+2)(x+3)

Help me please !!!!! I need help

Answers

10 percent of 300 is 30

3 hours and 10 minutes =190

Can someone help me please????

Answers

i think it would be the last one sorry if i’m wrong

What is 190% of 69.70?

Answers

Answer:

[tex]\huge\boxed{132.43}[/tex]

Step-by-step explanation:

= 190 % of 69.70

[% means out of 100 and "of" means to "multiply]

= [tex]\displaystyle \frac{190}{100} * 69.70[/tex]

= 1.9 * 69.70

= 132.43

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

Answer:

132.43

Step-by-step explanation:

Calculate the percentage of a number.

For example: 190% of 69.70 = 132.43

the distance between a number and 2 on the number line.

Answers

What is the other number and do you have like a picture

Your question is not very understanding.

Multi answer inequality! Please help and comment only if you know!

Answers

Answer:

-8, 0, and -12

Step-by-step explanation:

Using -7 would get you 8. Using -5 would get you 4

3a²b3(-4b3 + 2b2a - 7) =

Answers

Answer:

the answer is =6a^3b^5−12a^2b^6−21a^2b^3

Step-by-step explanation:

hoped I helped:)

Help pls and thanks :)

(Are the two triangles similar? Explain, step by step, how you know. )

Answers

Answer:

The two triangles can be considered similar as Angle A is 70 degrees and Angle B is a congruent angle to Angle A, which can be proven by adding 70 to 110 which shows a 180 degree angle (flat angle). Therefore we know that this triangle is similar

Step-by-step explanation:

What is the coefficient in the expression 4x + 2
O2
O4
Ox
O+​

Answers

A coefficient is a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g. 4 in 4x).

The 2 and + are out since they don't have variables(and the + is just a +).

So 4 and x are left. x is a variable, not a coefficient, so the last(and correct) answer is 4.

---

hope it helps

An ice cube tray has 12 sections. Each section has the shape of a 3 m cube. What is the volume of water used to fill the tray?

Answers

Answer:

324 m³

Step-by-step explanation:

each cube = 3x3x3 = 27 m³

27 m³ 12 = 324 m³

The temperature in February was at most 6°F. Use t as your variable.

Answers

Answer:

t ≤ 6°F

The temperature(t) was less than or equal to 6°F.

Need help with all three ​

Answers

Answer:

7. 3000

8. 768

9. 378

Step-by-step explanation:

7. 60×50=3000

8. 48×16=768

9. 21×18=378

Please help me solve 8n+2-6n-13=9+2n-13

Answers

no solution since the 2n on both sides cross out

Answer:

It has no solution, unless there's a specific way it needs to be solved

Step-by-step explanation:

What inequality is represented by this graph?
+
1 2
+
g
02
4 5 6
Ox>6
Ox<6
0 x
O XC6
07:26

Answers

All the numbers chosen on the number line are smaller than 6, meaning 6 will be greater and therefore the open end of the inequality will face the bigger number 6. (Or you can see which way the arrow is pointing, in this case it’s pointing left so find the answer pointing left)
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