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2 years ago

Help ASAP, please! What is the area of this quadrilateral?

Mathematics

1 answer:

nasty-shy [4]2 years ago

5 0

Answer:

D. 12

Step-by-step explanation:

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A small box of cereal contains 10 cups of cereal. A medium box of the same cereal contains 30% more cereal than the small box. H

mario62 [17]

Answer:

13 cups

Step-by-step explanation:

If the small box has 10 cups, then:

(small) 10 cups = 100%

(medium) x cups = 130%

Now, cross multiply:

10 (130) = x (100)

1300 = 100x

x = 13

Another way to solve this is by turning 30% into a decimal:

30/100 = 0.3

10 (0.3) = 3

Now you have 30% of the 10 cups, but you need 30% more than the small box, so:

10 + 3 = 13 cups

6 0

2 years ago

Express the ratio as a fraction in the simplest form: 32 pennies to 300 pennies

jenyasd209 [6]

Answer:

8/75

Step-by-step explanation:

Ratio:

32:300

Fraction:

32/300

Simplest form(divide the numerator and the denominator by 4)

Answer: 8/75

4 0

3 years ago

Read 2 more answers

How many different groups of 3 movies can a person rent if there are 12 movies to choose from?

Norma-Jean [14]

If there are 12 movies and a person can rent three, then there are 220 different combinations they can be rented in.

3 0

3 years ago

Read 2 more answers

Kate has a serving account that contains $230. She decides to deposit $5 each month from her monthly earnings for baby-sitting a

Sladkaya [172]

Y=5x+230

after 1 year she will have $290

6 0

3 years ago

Read 2 more answers

The mean and standard deviation of the number of practices are = 8 practices and sx = 4.47 practices. The mean and standard devi

ddd [48]

Least square regressions are used to find the equation of best fit between two variables.

The equation of the least-squares regression line is: $\mathbf{y = 9.414 - 0.213x}$

The given parameters are:

$\mathbf{\bar x = 8}$

$\mathbf{\sigma_x = 4.47}$

$\mathbf{\bar y = 7.71}$

$\mathbf{\sigma_y = 1.20}$

$\mathbf{r = -0.793}$

The equation of the least-squares regression line is represented as:

$\mathbf{y = a + bx}$

Where:

$\mathbf{b = r \times \frac{\sigma_y}{\sigma_x}}$

$\mathbf{a = \bar y - b\bar x}$

So, we have:

$\mathbf{b = r \times \frac{\sigma_y}{\sigma_x}}$

$\mathbf{b = -0.793 \times \frac{1.20}{4.47}}$

$\mathbf{b = -0.213}$

$\mathbf{a = \bar y - b\bar x}$

$\mathbf{a = 7.71 - (-0.213) \times 8}$

$\mathbf{a = 9.414}$

So, the equation is:

$\mathbf{y = a + bx}$

$\mathbf{y = 9.414 - 0.213x}$

Read more about equations of least squares regression at:

brainly.com/question/2141008

8 0

2 years ago