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3 years ago

Help me please thank you very much

Mathematics

1 answer:

Butoxors [25]3 years ago

6 0

For the first question the answer is-2,3
For the second question the answer should be 168.83 meters.

Hope I didn't mess up for your sake

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you are making a picture frame in your shop class. two peices of wood are cut to form complementary angles so they fit fit toget

Andrews [41]

Two angles are complementary when their sum is equal to 90°.

So, ( 2x + 39 ) + ( 7x - 21 ) = 90°

9x + 18° = 90°

x = 8°

Putting value of x in the angles given :

( 2x + 39 )° = 2(8°) + 39° = 55°.

( 7x - 21 )° = 7(8°) - 21° = 35°.

Therefore, the angles are 55° and 35°.

Hence, this is the required solution.

5 0

3 years ago

-5x - -4x - 10 = ? Please Help Me!

Nastasia [14]

Answer:

Today: Monday, 12 October 2020

Hour: 23.39 WIB (in Indonesia)

_________________________

-5x - - 4x - 10

-5x + 4x - 10

-x - 10

8 0

3 years ago

Simplify (x^-2y^6/x^-4y^8)1/2

AlexFokin [52]

Simplify the following:
(y^6 y^8)/((2 x^2)/(x^4))
Combine powers. (y^6 y^8)/((x^2×2)/x^4) = (y^(8 + 6) x^(4 - 2))/2:
(y^(8 + 6) x^(4 - 2))/2
8 + 6 = 14:
(y^14 x^(4 - 2))/2
4 - 2 = 2:
Answer: (y^14 x^2)/2

6 0

3 years ago

HELP PLESSE ITS MULTIPLE CHOICE

Andrew [12]

Answer:

<h2>Letter A</h2>

Step-by-step explanation:

First of all, we have to solve all the equations

First one is (4*1)-6

We have to use PEMDAS

which stands for

Parenthesis

Exponents

Multiplication

Divison

Addition

Subtraction

In (4*1)-6

You have to do 4*1 first ~ which equals 4

the next step would be 4-6 ~ which equals -2

The next equation would be (1*4)-6

First do 1*4 ~ which is 4

Next 4-6 ~ which again equals -2

Next equation is (1*6)-(4-6)

Parenthesis first, 1*6=6

4-6=-2

6-(-2)

which equals 8

Our next equation is 6-(1*4)

1*4=4

6-4~ which equals 2

Our last equation is 4*(1-6)

Parenthesis comes first, so it would be 1-6 first

which equals -5

4*(-5) would be our final step ~ which equals -20

All of our answers would be

-2 - from the top equation

-2 - from letter A

8 - from letter B

2 - from letter C

-20 - from letter D

which means Letter A is the answer.

Hope this is helpful.

5 0

3 years ago

Let x be a real number. Find the lowest possible value of |5x^2 - 16| + |10x - 2|.

BlackZzzverrR [31]

Since the equations are for absolute value this means any negative number used the answer would become positive, so to get the lowest value possible x would need to equal 0, which would eliminate the x variable from the equations.

Replace x with 0 and solve:

|5(0)^2 - 16| + |10(0) - 2|

Simplify:

|0 - 16| + |0 - 2|

|-16| + |-2|

Combine:

|-18|

Absolute Value = 18

4 0

3 years ago