Can the measurement from △DEF be determined using only the Law of Cosines? State whether each measurement can be determined using only the Law of Cosines by answering “yes” or “no”.

m∠D =


m∠E =


DE =

Answer: x=2

Step-by-step explanation: add 4 to both sides of the equation.

Answer:

50°F

Step-by-step explanation:

Given the equivalent celcius and Fahrenheit temperature relation :

t℃=(32+1.8t)℉

t = any rational number :

Taking a rational number, t = 10

The Fahrenheit temperature obtained will be :

t°C = 10

t℃=[32+1.8(10)] ℉

10°°C = (32 + 18)°F

The equivalent Fahrenheit temperature = 50°F

Answer: $800.

Step-by-step explanation:

To find the income tax of $20,000 simply multiply 20,000 by the decimal of 4%.

20,000 x 0.04 = 800

Answer:

The reason is to allow others to explore and have an image to reference to.

Step-by-step explanation:

Answer:

B, to make the ad more appealing

Answer:

Step-by-step explanation:

The can find this my matching each number of the chart with each diagram

It can't be the first one because the 17-19 isn't on 8, it is on 4

It can't be the second one because the 20-22 isn't on 7, it is on 9

It is the third one because all the number on the chart is matching with the numbers on the diagram

It can't be the fourth one because the 17-19 isn't on 8, it is on 4

Answer: 2(x-7)

Step-by-step explanation: 2x−14

2x−14

=2(x−7)

Answer:

-8

Step-by-step explanation:

so first start off by doing 2x(-14)

this will get us to our answer -8.

It's pretty easy, try using a calculator to help if needed.

☺️

Answer:

1/6 of a bowl of batter

Step-by-step explanation:

Find out how much muffins is needed for 1 bowl.

2 bowls = 12 muffins

1 bowl = 12 ÷ 2 = 6 muffins

Since 1 bowl can fill 6 muffins, it's 1/6

Answer:

10 is subtracted from a third of a number is greater than 22

Step-by-step explanation:

1/3n-10>22​

you subtract 10 from 1/3n

1/3 - 10 is greater than 22

so:

10 is subtracted from a third of a number is greater than 22

Answer:

just go to Desmos graphing calculators

Step-by-step explanation:

and that all

Answer:

x = 252°, y = 126° , z = 54°

Step-by-step explanation:

( Hopefully I've read the size of the angle 126° correctly )

The central angle x is twice the inscribed angle, that is

x = 2 × 126° = 252°

∠ y = 126° ( angles on the circumference subtended by the same arc )

y and z are adjacent angles and are supplementary , that is

y + z = 180°

126° + z = 180° ( subtract 126° from both sides )

z = 54°

Answer:

117

Step-by-step explanation:

Required number

[tex] = 65 \times \frac{9}{5} \\ \\ = 13 \times 9 \\ \\ = 117[/tex]

Answer:

The correct answer is:

Error made: The student multiplied only corresponding terms in each bracket with each other

Correction: Each term in one bracket is to be multiplied with every term in the next bracket

Step-by-step explanation:

The student paired the terms in the brackets into like terms and multiplied the like terms like this:

(2x + 2) × (4x - 1)  

collecting like terms: (2x, 4x) (2, -1)

(2x × 4x) (2 × (-1)) = 8x² - 2.

The above is the wrong way of expanding the bracket. The correct way of doing it is as follows:

(2x + 2) (4x - 1)

Each term in one bracket multiplies each term in the second bracket.

= 2x (4x - 1) + 2(4x -1)

= 8x² - 2x + 8x - 2

= 8x² + 6x - 2

Answer:

8.

Step-by-step explanation:

multiples of 3 for every shape.

Answer:

Savings= $236

Step-by-step explanation:

Giving the following information:

Money spent= $59

Proportion of savings= 25% = 0.25

To calculate the total savings before shopping, we need to use the following formula:

Savings= money spent / proportion of savings

Savings= 59 / 0.25

Savings= $236

Answer:

The third one i think

Step-by-step explanation:

Answer:

its the 4th one, the onlyone that makes sense

Step-by-step explanation:

the 3rd one cant since a function always had one input for every output

Answer:

6x^2 + 2xy -9y^2 +3y +10

Step-by-step explanation:

yes

Answer:

Step-by-step explanation:

Answer:

$12

Step-by-step explanation:

$10 is   100% of the price

 The selling price is 120% of the price

x= selling price

10 -------------100%

x ----------------120 %

Cross multiplication

10x120 = 100x

1200 = 100x

Divide both sides by 100

12 = x

 Selling  price = $12

Answer:

there is no question but i think out of a,b,c and e i think b or c

Step-by-step explanation:

sorry

Answer:

1) 2² + 5² = ?²

2) 6² + ?² = 9²

3) 8² + 16² = ?²

4) 8² + ?² = 10²

Step-by-step explanation:

Because these are all right triangles, we can use the Pythagorean Theorem:

a² + b² = c²

Where c is the hypotenuse, the longest side of the triangle. It can be identified as being across from the right angle of the right triangle.

The legs are the two other sides of the triangle and they are interchangeable when placed in the Pythagorean Theorem.

Answer:

Step-by-step explanation:

Answer:

read.

Step-by-step explanation:

The popularity of the Gutenberg press in Europe made books more accessible and motivated people want to learn how to READ.

This is evident in the fact that Johannes Gutenberg who was widely known as a printer was famous for inventing a means of producing books at a cheaper cost and portable size that is also durable and easy for distribution.

The result of this invention led to an increase in the availability of books and thereby enhance and motivate more people, not just the elites, to have access to books and READ them.

Answer:

Read

Step-by-step explanation:

cause

Answer:

8 x 4

Step-by-step explanation:

Lets say the length is x and the width is y.

xy = 32

2x + 2y = 24

Rearranging the second equation, we get:

2x = 24 - 2y

/2         /2

x = 12 - y

substitute into the first equation

y(12 - y) = 32

12y - y^2 = 32

-32             -32

-y^2 +12y - 32 = 0

x -1                      x -1

y^2 - 12y + 32 = 0

(y - 8)(y - 4) = 0

y = 8 or 4

substitute into x = 12 - y.

x = 12 - 8 = 4

x = 12 -4 = 8

so the correct dimensions are 4 x 8, as either x = 4 and y =8, or x = 8 and y = 4.

Hope I helped!

Answer:

45

Step-by-step explanation:

The answer would be 45

Answer:

$367.17

Step-by-step explanation:

we are find the cost of the car after 5 years

Using the compound interest formula;

A = P(1+r/n)^nt

Given

Principal P = $300

rate r = 5.2% = 0.052

Time t = 5years

Time of compounding n = 1/12 (monthly)

Substitute into the formula

A = 300(1+0.052(12))^5(1/12)

A = 300(1+0.624)^0.4167

A = 300(1.624)^0.4167

A = 300(1.2239)

A = 367.17

hence the amount of the car after 5years is $367.17

Answer:

um 3.5?

Step-by-step explanation:

Answer:

3.5

Step-by-step explanation:

if I'm understanding the question correctly, that is the answer

Answer:

you have a 0.25 chance

Step-by-step explanation:

Each coin has a 0.5 so to get two on heads is 0.25 sorry I don't have time for a detailed reason

Answer:

#1

Ratio of 45-45 and 30-60-90 triangles

45-45

30-60-90

a)  

b)

#2

Find x

Find y

#3

a) sin A = 5/13

b) cos A = 12/13

c) tan A = 5/12

d) A = arcsin (5/13) = arccos (12/13) = arctan (5/12) = 22.6°

Answer:

Yes! these are in the same proportion

Step-by-step explanation:

Lhs = 3 over 11/2 = 3/(11/2)

=>3× (2/11)

=> 6/11

=> Rhs