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Lemur [1.5K]
3 years ago
15

Determine the 22nd term in the following arithmetic sequence: 3, 7, 11, 15...

Mathematics
2 answers:
Lyrx [107]3 years ago
5 0

Answer:

87

Step-by-step explanation:

a+(n-1)d where a is the first term n is the value of term and d the common difference

3+(22-1)4

=87

Elden [556K]3 years ago
3 0

Answer:

87

Step-by-step explanation:

4n-1

4(22)-1

88-1=87

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Which of the following functions best fits the data shown in the scatterplot below? y=100x+2y is equal to 100 x plus 2 y=20x2+10
KengaRu [80]

The equation of the scatter plot is (a) y = 100x + 2

<h3>How to determine the equation of the scatterplot?</h3>

The line of best fit of the scatter plot passes through the points

(x,y) = (0,2) and (1,102)

Start by calculating the slope using:

m = \frac{y_2 -y_1}{x_2 -x_1}

So, we have:

m = \frac{102 - 2}{1 - 0}

m = 100

The equation is then calculated as:

y = m(x - x1) + y1

This gives

y = 100(x -0) + 2

Evaluate

y = 100x + 2

Hence, the equation of the scatter plot is (a) y = 100x + 2

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4 0
2 years ago
Which equation is the inverse of 5 y + 4 = (x + 3) squared + one-half?
8_murik_8 [283]

The inverse of the given function is y = √5x + 7/2 - 3

<h3>Inverse of a function</h3>

Given the function expressed below;

5y + 4 = (x+3)² +1/2

5y = (x+3)² - 7/2

y = 1/5(x+3)² - 7/10

Replace y as x

x = 1/5(y+3)² - 7/10

Make y the subject of the formula

5x = (y+3)²- 7/2

(y+3)² = 5x + 7/2

y+3 = √5x + 7/2

y = √5x + 7/2 - 3

Hence the inverse of the given function is y = √5x + 7/2 - 3

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4 0
2 years ago
18. Curry powder is sold at $7.45 per 100 g. How much money will Thuy need in order to buy 3 kg of curry powder?
MissTica

Answer:

Step-by-step explanation:

$7.45 = 100g

x = 3kg( 3 × 1000) = 3000g

∵ $7.45 = 100g

   x        = 3000g

(100 × x) = (7.45 ×  3000)

100x = 22350

100x/100 = 22350/100

x  = $223.5

4 0
2 years ago
Read 2 more answers
The circumference is __
Anestetic [448]

Answer:

<em>As </em><em>we </em><em>know </em><em>that </em><em>there </em><em>is </em><em>a </em><em>radius </em><em>which </em><em>is </em><em>2 </em><em>cm</em>

<em>so </em>

<em>circumference </em><em>=</em><em> </em><em>2</em><em> </em><em>π</em><em> </em><em>r</em>

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<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>1</em><em>2</em><em>.</em><em>5</em><em>7</em><em>c</em><em>m</em>

<em>it's </em><em>circumference </em><em>is </em><em>1</em><em>2</em><em>.</em><em>5</em><em>7</em><em> </em><em>cm</em>

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3 years ago
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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
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