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3 years ago

Solve the system:

Mathematics

2 answers:

AlladinOne [14]3 years ago

7 0

ello ahahahhahahahahahahaha

marysya [2.9K]3 years ago

4 0

Answer:

390

Step-by-step explanation:

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2. Express each of the following as a rational number in the form of p/q Where q≠0

ANTONII [103]

Step-by-step explanation:

We need to find each of the following as a rational number in the form of p/q

(a) (3/7)² (b) (7/9)³ (c) (-2/3)⁴

Solution,

(a) (3/7)²

$(\dfrac{3}{7})^2=\dfrac{9}{49}$

(b) (7/9)³

$(\dfrac{7}{9})^3=\dfrac{7\times 7\times 7}{9\times 9\times 9}\\\\=\dfrac{343}{729}$

$(\dfrac{-2}{3})^4=\dfrac{-2\times -2\times -2\times -2}{3\times 3\times 3\times 3}\\\\=\dfrac{16}{81}$

Hence, this is the required solution.

4 0

3 years ago

What is the slope of the line that goes through the points (1,-5) and (4,1)?

Anna007 [38]

Answer:

D. 2

Step-by-step explanation:

(1 - -5)/(4 - 1) = 6/3 = 2

3 0

3 years ago

Read 2 more answers

What is an inequality for this graph?

shtirl [24]

Answer:

B. y ≤ |x – 2| + 4

Step-by-step explanation:

Shading is below the solid line, so the appropriate relation symbol is "less than or equal to" (≤).

Shading is below when y values less than those on the line are part of the solution set.

The line is solid when it is part of the solution set (dashed, otherwise). It is part of the solution set when y-values equal to those on the line are solutions to the inequality.

4 0

3 years ago

Guests at a pizza party are seated at three tables. The small table has 5 seats and 2 pizzas. The medium table has 7 seats and 3

bagirrra123 [75]

Answer:

the 5 seated table with the 2 pizzas got more each.

Step-by-step explanation:

$\frac{5}{2} = 2\frac{1}{y2}$ pieces each

$\frac{7}{3} = 2\frac{1}{3}$ pieces each

$\frac{12}{5} = 2\frac{2}{5}$ pieces each

Now change the fractions s that they all have a common denominator.

$2\frac{1}{2} = 2\frac{15}{30}$

$2\frac{1}{3} = 2\frac{10}{30}$

$2\frac{2}{5} = 2\frac{15}{30}$

Thus meaning that the 5 seated table with the 2 pizzas got more each.

6 0

3 years ago

In a sample of 230 teenagers, 202 would like to have smaller class sizes at their school. Find the sample

marishachu [46]

Answer:

The sample proportion is 0.88.

The margin of error is of 0.04.

The interval likely to contain the true population proportion is (0.84,0.92).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.