All categories

3 years ago

What is the difference (7² + 8² + 9²) - (6² + 5² + 4²)

Mathematics

1 answer:

prisoha [69]3 years ago

5 0

Answer:

199

Step-by-step explanation:

49 + 64 + 81 - 36 +25+16

194 - 36 +25 + 16

-36 + 25 + 16

= -11 + 16 = 5

194 + 5 = 199

You might be interested in

Help me find answer to this

Debora [2.8K]

Answer:

$\angle B=41.81^\circ$

Step-by-step explanation:

<u>Trigonometric Ratios</u>

The ratios of the sides of a right triangle are called trigonometric ratios.

The longest side of the triangle is called the hypotenuse and the other two sides are the legs.

The sine ratio relates the opposite side of an angle of the triangle with the hypotenuse:

$\displaystyle \sin B=\frac{\text{opposite leg}}{\text{hypotenuse}}$

Here, the opposite leg to angle B is the side CA=2, and the hypotenuse is the side AB=3, thus:

$\displaystyle \sin \angle B=\frac{2}{3}=0.667$

Calculating the inverse sine function:

$\angle B=\arcsin (0.667)$

$\boxed{\angle B=41.81^\circ}$

5 0

2 years ago

Which relationship describes angles 1 and 2?

In-s [12.5K]

Answer:

Supplementary Angles

Adjacent Angles

Step-by-step explanation:

Angles 1 and 2 share a vertex and form a straight line. These angles are called supplementary angles. They add to 180 degrees and form a straight line. They are adjacent as well because they share a vertex and side.

3 0

2 years ago

Kat has 19 coins, all quarters and dimes, that are worth a total of $4. The system of equations that can be used to find the num

pishuonlain [190]

14 is the answerrrrr

6 0

2 years ago

Read 2 more answers

Keri has a spinner with sections labeled Black,

Schach [20]

Answer:

50%

Step by step explanation

100 divided by 4 is 25

Since it is both blue and black, it is doubled from 25 to 50

4 0

3 years ago

Find the general solution: y''-2y'-3y=-3te^(-t)

allsm [11]

The answer i got was -3te with -t as an exponent

5 0

3 years ago