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3 years ago

The angle supplementary to 87 degrees is...

Mathematics

2 answers:

iragen [17]3 years ago

7 0

Answer:

93 degrees

Step-by-step explanation:

supplementary means the two angles = 180 degrees

Thus, 180-87=93

34kurt3 years ago

3 0

Answer:

Step-by-step explanation:

Supplementary angles add to 180

Let x be the unknown angle

x+87 = 180

Subtract 87 from each side

x+87-87 = 180-87

x = 93

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If x -1/7,evaluate x²+1/x²

SCORPION-xisa [38]

Answer:

$given \: x = - \frac{1}{7}$

$x {}^{2} + \frac{1}{x {}^{2} }$

$( - \frac{1}{7} ) {}^{2} + \frac{1}{ ( - \frac{1}{7} ) {}^{2} }$

$\frac{1}{49} + \frac{1}{ \frac{1}{49} }$

$\frac{1}{49} + \frac{1 \times 49}{1}$

$\frac{1}{49} + 49$

$\frac{2402}{49} \: or \: 49.02$

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3 years ago

Please answer!!!!! I will give brainliest!

Ratling [72]

What he or she said up there^^^^^^^

3 0

3 years ago

Can someone please help me with this problem:(

Flauer [41]

Answer:

x y

-2 4

0 0

1 -2

2 4

Step-by-step explanation:

in the equation replace x with the number from the table in the x colum then complete the equation

7 0

3 years ago

Decide whether the table represents a linear or exponential function circle with a linear exponential then write the function fo

Sergio [31]

This function starts at $(0,3)$ , so we have $f(0)=3$ .

Then, every time $x$ increments by 1, $y$ doubles. This is typical of exponential functions. In linear functions, every time $x$ increments by 1, $y$ increments by a fixed amount (the slope of the function).

So, this is an exponential function, and the equation is

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3 0

3 years ago

A coin collector has $45 in just dimes and quarters in a piggy bank he counted all the coins and there are 240 total how many ea

Whitepunk [10]

Answer:

The number of <u>dimes are 100</u> and number of <u>quarters are 140.</u>

Step-by-step explanation:

Let the number of dimes be 'd' and quarters be 'q'.

Given:

The sum of amount is $45.

The total number of coins are 240.

1 dime = $0.10

∴ 'd' dimes = $\$0.10d$

1 quarter = $0.25

∴ 'q' quarters = $\$0.25q$

Now, as per question:

$d+m=240-----1\\0.1d+0.25q=45---2$

Multiplying equation (1) by -0.1 and adding the result to equation (2), we get:

$-0.1d-0.1q=240\times -0.1\\-0.1d-0.1q=-24\\0.1d+0.25q=45\\-----------\\0.15q=21\\q=\frac{21}{0.15}=140\\\\d=240-q=240-140=100$

Therefore, the number of dimes are 100 and number of quarters are 140.

7 0

3 years ago