Divide £100 in the ratio 1:4

The length and width of a rectangle are

uysha [10]

Answer:

y=6

Step-by-step explanation:

(2y-3)*2=4y-6

You multiply by two because there are two sides that are considered the length

y+1*2=2y+2

Same thing here

4y-6+2y+2=32

6y-4=32

+4. +4

6y=36

/6 /6

y=6

5 0

2 years ago

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"Data from the World Health Organization in 2013 were used to predict the life expectancy of men in a country from the life expe

marshall27 [118]

Answer:

The predicted life expectancy of men in a country in which the life expectancy of women is 70 years is 65.33 years.

Step-by-step explanation:

The least square regression line is used to predict the value of the dependent variable from an independent variable.

The general form of a least square regression line is:

$\hat y=\alpha +\beta x$

Here,

y = dependent variable

x = independent variable

α = intercept

β = slope

The regression line to predict the life expectancy of men in a country from the life expectancy of women in that country is:

$\hat y=3.73 +0.88 x$

Compute the life expectancy of men in a country in which the life expectancy of women is 70 years as follows:

$\hat y=3.73 +0.88 x$

$=3.73 +(0.88\times 70)\\=3.73+61.6\\=65.33$

Thus, the predicted life expectancy of men in a country in which the life expectancy of women is 70 years is 65.33 years.

6 0

3 years ago

Which expressions are equivalent 27x/9x

uysha [10]

Answer:

3x

Step-by-step explanation:

6 0

2 years ago

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What is the y-value of the vertex of the function f(x)=−(x+8)(x−14)? 3 6 112 121

Viktor [21]

Answer:

121

Step-by-step explanation:121 ! just got it right.

8 0

3 years ago

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please help solve this question !! *the question is in the pic* (answer thoroughly and make sure to explain step my step and if

Lady bird [3.3K]

Step-by-step explanation:

apply angle sum property of triangle in the given traingle ( instead of this u can write sum of all the interior angles of triangle is 180°)

so,

→ 80° + 50° + x = 180°

→ 130° + x = 180°

→ x = 180° - 130°

→ x = 50°

therefore, value of x is 50°.

hope this answer helps you dear....take care and may u have a great day ahead!.

7 0

2 years ago

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