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RUDIKE [14]
4 years ago
5

I need help with questions a b c d and e. ​

Mathematics
1 answer:
KengaRu [80]4 years ago
3 0

Answer:

Complementary angles are two angles that have a sum of 90°.

Supplementary angles are two angles that have a sum of 180°.

A ABC BCD SUPP  90+90=180

B BCA ACD COMPL  45+45=90

C BCA CDA NEITHER         45+90=135

D ABC CDA SUPP  90+90=180

E BAC  CAD COMPL  45+45=90

Step-by-step explanation:

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Eighty-five more than the square of a number is the same as the square of the quantity that is $17$ less than the number. What i
Usimov [2.4K]
To solve that we first need to write it as an equation where x is the number:
85 + x^2 = (x-17)^2
85 + x^2 = x^2 - 34x + 289
Now organize the equation by gathering like terms in the same side lf the equation:
You can shift 85 to the other side by subtracting 85 from both sides of the equation:

85 - 85 + x^2 =x^2 34x +289 - 85
x^2 =x^2 + 34x +204

And shift x^2 to the other side by subtracting x^2 from both sides:
x^2 - x^2 =x^2 -x^2 + 34x +204
0 = 34x + 204

Shift 34x to the other side by subtracting 34x from sides
-34x = 34x - 34x + 204
-34x = 204

And now isolate x by dividing both sides of the equation by -34
-34/-34x = 204/-34
x = -6
Thats your awnser , the number is -6
I hope you understood my brief explanation...
5 0
3 years ago
All parts please, i need this by the end of today and pls write answer in comments
ale4655 [162]

Answer:

A

=  \frac{78}{360}  \\  =  \frac{13}{60}

B

let \: total \: number \: be \: x \\  \frac{13}{60} x = 1164 \\ x =  \frac{1164 \times 60}{13}  \\ x = 5372 \: movies

C

A year has (4 × 12) weeks

= 48 weeks.

In 1 week = 9,568,000 movies

48 weeks = (48 × 9,568,000) movies

Average movies = 459.264 movies

D

<em>Since</em><em> </em><em>9</em><em>.</em><em>5</em><em>6</em><em>8</em><em> </em><em>million</em><em> </em><em>movies</em><em> </em><em>are</em><em> </em><em>rented</em><em>.</em>

<em>How</em><em> </em><em>about</em><em> </em><em>in</em><em> </em><em>one</em><em> </em><em>year</em><em> </em><em>(</em><em> </em><em>4</em><em>8</em><em> </em><em>weeks</em><em> </em><em>)</em>

<em>Convert</em><em> </em><em>1</em><em> </em><em>year</em><em> </em><em>to</em><em> </em><em>weeks</em><em> </em><em>and</em><em> </em><em>compare</em><em> </em><em>with</em><em> </em><em>1</em><em> </em><em>week</em>

7 0
3 years ago
Bill weighs 120 lbs and is gaining ten lbs each month. Phil weighs 150 lbs and is gaining four lbs each month. How many months w
vaieri [72.5K]
First, let's write two expressions, letting x= the number of months which have elapsed:

Bill: 120 + 10x
Phil: 150 + 4x

If we set them equal to each other, then solve for x, that will be the number of months where their weights equal each other:

120+10x = 150 + 4x   [starting equation]
-120  -4x    -120 -4x    [ subtract 120 from both sides, and 4x from both sides, to isolate the term with the variable]

<u>6x</u> = <u>30</u>     [divide both sides by 5]
 5      5

x=6. They will weigh the same in six months.

5 0
3 years ago
Read 2 more answers
If x=2, and y=-3, then xy^2 =
liraira [26]

Answer:

36

Step-by-step explanation:

If x = 2 and y = -3...

xy^2=

(2)(-3)^2 =

-6^2 =

36

XY times 2=

(-6)(2) =

-12

3 0
2 years ago
Read 2 more answers
ADD 2hours 12min 48sec + 55min 22sec
adelina 88 [10]
The answer would be: 3hours 8mins 10 sec
5 0
3 years ago
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