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3 years ago

Whats 1+1 x 10 x 61 divided by 2 then find the square root of what you get

Mathematics

2 answers:

Zina [86]3 years ago

5 0

Answer:

610

Step-by-step explanation:

marta [7]3 years ago

3 0

Answer:

24.69818

Step-by-step explanation:

1. 61 times 10 times 2 = 1220

2. 1220/2 = 610

3. Square root of 610 = 24.69818

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The arch of a bridge forms the upper half of an ellipse. The arch is 6 meters above the 20-meter-wide river. Write an equation f

aksik [14]

Answer:

$\frac{x^2}{36} + \frac{y^2}{100} = 1$

Step-by-step explanation:

Required

The equation of the ellipse

This is calculated as:

$\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1$

Where:

$b =6$ ---- height

$a = 0.5 * 20 =10$ --- width

So:

$\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1$

$\frac{x^2}{6^2} + \frac{y^2}{10^2} = 1$

$\frac{x^2}{36} + \frac{y^2}{100} = 1$

3 0

3 years ago

Which three expressions are equivalent to 10x +11

BARSIC [14]

Answer:

B, C, and E

Step-by-step explanation:

<u>Simplify all answer choices:</u>

5(2x+10)+1=

10x+50+1=

10x+51

7(x+2)+3x-3=

7x+14+3x-3=

10x+11

3(3x+4)+x-1=

9x+12+x-1=

10x+11

2(6x+4)+2x+5=

12x+8+2x+5=

14x+13

2(6x+5)-2x+1=

12x+10-2x+1=

10x+11

Answer choices B, C, and E simplify to 10x+11

8 0

3 years ago

Irma works for a service that delivers groceries and pet supplies. She earns a base monthly salary of $1,900. In addition, she g

ruslelena [56]

Irma’s annual income has the delivery fees already taken out. earnings based on salary and commission is higher becuase fees have not been taken out

3 0

2 years ago

Use the first and last data points to find the slope intercept equation of a trend line.

andriy [413]

Answer:

y = $\frac{16}{3}x-79$

Step-by-step explanation:

From the given table,

Two points are (1, 15) and (7, 47)

If the two points $(x_1,y_1)$ and $(x_2,y_2)$ are lying on a line then slope 'm' of the line will be,

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

= $\frac{47-15}{7-1}$

= $\frac{32}{6}$

= $\frac{16}{3}$

Let the equation of a line passing through (h, k) is,

y - h = m(x - k)

If the line passes through (1, 15)

y - 1 = $\frac{16}{3}(x-15)$

y = $\frac{16}{3}x-\frac{16}{3}(15)+1$

y = $\frac{16}{3}x-80+1$

y = $\frac{16}{3}x-79$

4 0

3 years ago

The mean length of 4 childrens' big finger is 14cm. The mean length of 9 adults' big finger is 16.1cm. What is the mean length (

Mamont248 [21]

Answer:

The mean length of the 13 people's big finger is 15.45 cm

Step-by-step explanation:

Given;

mean length of 4 childrens' big finger, x' = 14cm

mean length of 9 adults' big finger is 16.1cm, x'' = 16.1cm

Let the total length of the 4 childrens' big finger = t

$x' = \frac{t}{n} \\\\x' = \frac{t}{4}\\\\t = 4x'\\\\t = 4 *14\\\\t = 56 \ cm$

Let the total length of the 9 adults' big finger = T

$x'' = \frac{T}{N} \\\\x'' = \frac{T}{9}\\\\T = 9x''\\\\T = 9*16.1\\\\T = 144.9 \ cm$

The total length of the 13 people's big finger = t + T

= 56 + 144.9

=200.9 cm

The mean length of these 13 people's big finger;

x''' = (200.9) / 13

x''' = 15.4539 cm

x''' = 15.45 cm (2 DP)

Therefore, the mean length of the 13 people's big finger is 15.45 cm

3 0

3 years ago