In ΔEFG, e = 2.6 cm, f = 7.2 cm and g=8.3 cm. Find the measure of ∠F to the nearest degree.
{}Urgen{} Delta Math

Answers

Answer 1

Answer:

57°  

Step-by-step explanation:

Use the law of cosines:

cos F = (e² + g² - f²)/2egcos F = (2.6² + 8.3²- 7.2²)/2(2.6)(8.3)          = 0.5516∠F = arccos 0.5516∠F = 57° (rounded to the nearest degree)
Answer 2

Answer:

57

Step-by-step explanation:

cos F = (e² + g² - f²)/2eg

cos F = (2.6² + 8.3²- 7.2²)/2(2.6)(8.3)

        = 0.5516

∠F = arccos 0.5516

∠F = 57° (rounded to the nearest degree)


Related Questions

Help asappp please !!!

Answers

Answer:

Step by step explanation:
equation is y= 2x + 6

write the equation of the line passing through the points (-4 -1) and (2 8)

Answers

Answer:

y=3/2x+5

Step-by-step explanation:


[tex] - \frac{2}{3} + 4 \times \frac{1}{3} [/tex]

Answers

Answer:

2/3

Step-by-step explanation:

You first multiply 4x1/3 which equals 4/3. Now you do -2/3+4/3=2/3. Hope this helps!

Answer:

2/3

Step-by-step explanation:

[tex]\frac{-2}{3}+4*\frac{1}{3}=\frac{-2}{3}+\frac{4}{3}\\\\=\frac{(-2) + 4}{3}\\\\\\= \frac{2}{3}[/tex]

Find the geometric mean between 4 and 6. (Always simplify the radical completely.)

Answers

Answer:

Use the formula to find the geometric mean.

4

6

Multiply

4

by

6

.

24

Rewrite

24

as

2

2

6

.

Tap for more steps...

2

2

6

Pull terms out from under the radical.

2

6

Approximate the result.

4.89897948

The geometric mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.

4.9

B divided by 8= 4
What is B.

Answers

Answer

The answer is 32

Step-by-step explanation:

32/8=4

Answer:

b = 32

Step-by-step explanation:

b/8 = 4

Multiply each side by 8

b/8 * 8 = 4*8

b = 32

It takes 90 minutes to vacuum 30 vehicles. At this rate, how many minutes does it take to vacuum 7 vehicles?

Answers

Answer: 21.

Step-by-step explanation: If you do '90 x 7' you get 630. With this, you will want to divide 630 by 30. So to simplify this, '(90 x 7) ÷ 30 = 21'

Yep 21 is correct good luck

Is my answer right? if not can you please tell me which won is right..

Answers

A = 4 is the correct answer!3 x ? = 1212 ÷ 3 = 4so1 x 4 = 4You're wrong. It is not six.By the way, it's "one" not "won".It was probably a mistake.:)Please let me know if I am wrong.

I NEED HELP ASAPPP
Part A
() For the following figure, the value of zis
HU
45
T
Part B
Using the same figure, determine the value of y.
Choose the suitable option,
(b)
A 16 in.
B 64 in
8V2in.
42 in

Answers

Answer:

sinB=p/h

sin45=8/y

1/√2=8/y

y=8√2in

please help !!!
would you please help me

Answers

The answer is 34300

Lei has a bag full of marbles. She draws one marble from the bag, notes the color, and then returns the marble to the bag. She repeats this process and makes a table with the results.
If there are 500 marbles in the bag, how many of them are most likely green?

Answers

Answer:

100000 olacak iyi dersler

How long does it take an account with a principal of $400 to earn $48 in interest at a simple annual interest rate of 2%?

Answers

Answer:

it'll take 6 years

Step-by-step explanation:

I =put

48= 400(.02) t

48= 8t

t= 6 years

The distance between point Q and point P is 6 1/2 units .Which number could represent point Q?please help me

Answers

Answer:

[tex]Q =2\frac{1}{2}[/tex] or [tex]Q =- 10\frac{1}{2}[/tex]

Step-by-step explanation:

Given

[tex]P = -4[/tex] --- missing from the question

[tex]Distance = 6\frac{1}{2}[/tex]

Required

Determine the possible value of Q

The distance can be calculated using absolute function as:

[tex]Distance = |Q - P|[/tex]

Substitute values for distance and P

[tex]6\frac{1}{2} = |Q - (-4)|[/tex]

[tex]6\frac{1}{2} = |Q +4|[/tex]

The absolute function can then be split as:

[tex]6\frac{1}{2} = Q + 4[/tex] or [tex]-6\frac{1}{2} = Q + 4[/tex]

Make Q the subject in both cases:

[tex]Q = 6\frac{1}{2} - 4[/tex] or [tex]Q = -4 - 6\frac{1}{2}[/tex]

[tex]Q =2\frac{1}{2}[/tex] or [tex]Q =- 10\frac{1}{2}[/tex]

Which does NOT represent the quotient of 17 ÷ 10? A. 1 7/10 B. 1 R7 C. 10/17 D. 1.7

Answers

Answer:

The answer is C

Step-by-step explanation:

Answer:

C. 10/17

Step-by-step explanation:

10/17 is less than the correct answer 1.7 so it is C.

A rectangular prism has a base that is 1.5 meters by 2 meters and the prsim is 4 meters high,What is the surface area

Answers

Answer:

34

Step-by-step explanation:

the equation is 2(lw+lh+wh)

2( 1.5 x 2 + 1.5 x 4 + 2 x 4)

Answer:

Step-by-step explanation:

surface area=2lb+2(l+b)h

=2×1.5×2+2(1.5+2)×4

=6+2×3.5×4

=6+28

=34 sq. m


I need two equations

Answers

Answer:lol

Step-by-step explanation: booooooo

the ratio of boys to girls in the lunch room was 4 to 3. If there were 84 students in the cafeteria, how many were girls? -please answer!

Answers

Their would be 67 girls.

Find the unit rate.
1/2 pound : 5 days

Answers

Answer:

= 0.2 pound per day

Step-by-step explanation:

This is a fraction equal to

1 pound ÷ 5 days

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 5

1 pound ÷ 5

5 days ÷ 5

=  

0.2 pound

1 day

=  

0.2 pound

day

= 0.2 pound per day

$26,000 is invested at 8% p.a. If interest is compounded annually, find the balance after 35 years.​

Answers

Answer:

At the end of 35 years, your savings will have grown to $384,418.

You will have earned in $358,418 in interest.

Help plz!!!!!!!! Which expression is equivalent to the expression below?

Answers

hope this helps you

.

.

.

can u pls help me with this question ​

Answers

Should be 56.25 miles from its destination bc you know it’s traveling at 22.5 miles an hour and you know how many hours the train has traveled already then you do 22.5(miles) multiplied by the number of hours or 2.5

The circumference of a circle is approximately 3.14 times the length of its diameter. Which inequality can be used to find all possible diameter lengths, d, if the circumference of a circle is more than 50 cm?

Answers

Answer:

3.14d > 50 cm

Step-by-step explanation:

Given that the circumference of a circle is approximately 3.14 times the length of its diameter

If the circumference is C and the length of the diameter is d then

C = 3.14d

If the circumference of a circle is more than 50 cm then

3.14d > 50

The  inequality can be used to find all possible diameter lengths, d,

d > 50/3.14

d > 15.92cm

Virginia had 3600 dollars in her saving account. She withdrew 2/5 of the money and donated 1/2 of this to the orphanage. How much money did she donate?

Answers

Answer:

$720

Step-by-step explanation:

frecuencia del alcohol​

Answers

????
Dnbdusbsjeisbsbdbbd

HELP PLS ILL GET FINES AND HELD BACK AND IM POR

Answers

Answer:

it would be c

Step-by-step explanation:

Beacause 3x2 equal 6 you do not multiply the dinominator

The answer was c
Put a 1 under the whole so they both have denominater

If A and B are two points on a circle such that m of arc (AB) = 260°. A possible value for the
angle subtended by arc BA at a point on the circle is
(a) 100°
(b) 75°
(c) 50°
(d) 25°​

Answers

Answer:

c) 50 degrees

Step-by-step explanation:

360-260 = 100 degree central angle

inscribed angle = 1/2 (100) = 50

Could someone help me figure this out.?

Answers

[tex]5.50p + 3.25[/tex]

[tex]41.75 = 5.50p + 3.25[/tex]

[tex]41.75 - 3.25 = 5.50p + 3.25 - 3.25[/tex]

[tex]38.5 = 5.50p[/tex]

[tex] \frac{38.5}{5.50} = \frac{5.50p}{5.50} [/tex]

[tex]7 = p[/tex]

Allison ordered 7 pictures.

2. Write the symbol that will make the statement true; -5__+3.
a. < b. > c. = d. /​

Answers

Answer:

a

Step-by-step explanation:

On the number line, negative numbers are less than zero. positive numbers are larger than zero.

ax + 7 = 2x + b
Find x

Answers

Answer:

x = [tex]\frac{b-7}{a-2}[/tex]

Step-by-step explanation:

Given

ax + 7 = 2x + b ( subtract 2x from both sides )

ax - 2x + 7 = b ( subtract 7 from both sides )

ax - 2x = b - 7 ← factor out x from each term on the left side

x(a - 2) = b - 7 ← divide both sides by (a - 2)

x = [tex]\frac{b-7}{a-2}[/tex]

what is distance between C(−5,−2) and D(0,−4)

Answers

Answer:

[tex]\displaystyle d = \sqrt{29}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinates (x, y)

Algebra II

Distance formula: [tex]\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Step-by-step explanation:

Step 1: Define

Point C(-5, -2)

Point D(0, -4)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formula]:                                                       [tex]\displaystyle d = \sqrt{(0+5)^2+(-4+2)^2}[/tex][√Radical] (Parenthesis) Add:                                                                        [tex]\displaystyle d = \sqrt{(5)^2+(-2)^2}[/tex][√Radical] Evaluate exponents:                                                                     [tex]\displaystyle d = \sqrt{25+4}[/tex][√Radical] Add:                                                                                               [tex]\displaystyle d = \sqrt{29}[/tex]
D=/29 that is your answer

>
Find the next three values in the sequence,
-64,-32,-16,-8...

Answers

Answer:

-4, -2, -1

Hope that helps!

Step-by-step explanation:

Answer:

Step-by-step explanation:

geometric sequence with common ratio = 1/2

a₅ = a₄(1/2) = -4

a₆ = a₅(1/2) = -2

a₇ = a₆(1/2) = -1

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