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3 years ago

ANSWER ASAP FOR BRAINIEST AND 100 POINT ASAP Find the value of x in the triangle.

Mathematics

2 answers:

deff fn [24]3 years ago

8 0

The total measure of all the angles in a triangle is 180°.

Since there is already a 90° angle, the other 2 angles must also add up to 90°.

The only answer that fits is x = 9.

Check:

9x7 = 63°

3x9 = 27°

Add up = 90°

brilliants [131]3 years ago

7 0

C (x=18)

is your answer

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What is z2+z+4z3+4z2?

Sergeeva-Olga [200]

4z^3 + 5z^2 + z
<span>Well that</span> would be it... <span>not</span> much can be done considering the exponents of the variable :)

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3 years ago

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Find the solution to the system of equations.

Tanya [424]

Answer:

x = - 4, y = 7

Step-by-step explanation:

Given the 2 equations

- 7x - 2y = 14 → (1)

6x + 6y = 18 → (2)

Multiplying (1) by 3 and adding to (2) will eliminate the y- term

- 21x - 6y = 42 → (3)

Add (2) and (3) term by term to eliminate y

- 15x = 60 ( divide both sides by 15 )

x = - 4

Substitute x = - 4 into either of the 2 equations and evaluate for y

Substituting into (2)

6(- 4) + 6y = 18

- 24 + 6y = 18 ( add 24 to both sides )

6y = 42 ( divide both sides by 6 )

y = 7

7 0

3 years ago

Sophia drives 6.12 miles each time she goes to visit her grandparents. How far will Sophia drive if she visits her grandparents

adell [148]

Answer:

55.08

Step-by-step explanation: Hope it helped.

3 0

4 years ago

Read 2 more answers

Learning

fiasKO [112]

Answer:

Neither

Step-by-step explanation:

Arithmetic Sequence has a common difference. You can add a "unique" number to each term to get the next term. Example:

2, 4, 6, 8, ...

Here you add 2 to get next term.

Also,

10, 20, 30, ...

Here you add 10 to get next term.

Geometric Sequence has a common ratio. You can multiply a "unique" number to each term to get the next term. Example:

2, 4, 8, 16, ...

Here you multiply each term by 2 to get next term.

Also,

5, 25, 125, ...

Here, you multiply each term by 5 to get next term.

Now, lets look at the sequence given, it is:

169, 196, 225, 256, ...

Lets check for common difference.

You add 27 to get 2nd term.

You add 29 to get 3rd term.

You add 31 to get 4th term.

So, NOT Arithmetic Sequence.

Also, if we divide next term by previous, we don't get a "unique" common ratio.

So, NOT Geometric Sequence.

So, we conclude, the sequence is NEITHER arithmetic nor geometric.

7 0

3 years ago

(please show your answer. thank you)

kondaur [170]

The correct option is: A. 80 cm³

Explanation

Diameter of the coin, $d= 2.0$ cm.

So, the radius, $r= \frac{d}{2} = \frac{2.0}{2} = 1.0$ cm.

As the coin is circular, so..

Area of each circular surface, $A= \pi r^2 = \pi (1.0)^2 = \pi$ cm²

Now for finding the amount of plastic for making each coin, we will find the Volume of each coin first.

As the thickness ( $h$ ) of the coin is 0.5 cm, so Volume of each coin,

$V= A*h \\\\= \pi*0.5 \\\\= 3.14159... * 0.5 \\\\ = 1.5707963... cm^3$

As you need to make a batch of 50 coins, so the total volume of 50 coins $= (1.5707963...*50 )= 78.53981... = 80$ [Rounded up to the nearest multiple of 10 cm³]

So, the amount of plastic you will need for making a batch of 50 coins is 80 cubic centimeter.

8 0

3 years ago