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3 years ago

HURRY PLEASE

Mathematics

2 answers:

Delicious77 [7]3 years ago

8 0

Answer:

Infinite solutions

Step-by-step explanation:

2x−7y=12 (1)

−x+3.5y=−6 (2)

(2) x = 3.5y + 6

(1) 2(3.5y+6) - 7y = 12

7y + 12 - 7y = 12

12 = 12 (a true statement)

Since the variable got eliminated and we got a true statement, the system has infinitely many solutions.

One of the solutions:

(6,0)

tino4ka555 [31]3 years ago

6 0

Answer:

(6,0)

Step-by-step explanation:

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The numbers are 16cm, 12cm, and 30cm please help with number 1

suter [353]

Answer:

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3 years ago

In a random sample of 75 individuals, 52 people said they prefer coffee to tea. 99.7% of the population mean is between 84/80/74

Dmitriy789 [7]

Using a 1-sample z-interval for the population proportion with confidence level 0.997, the sample probability is 0.69 with margin of error of 0.16, so between 0.69+0.16=0.85 of the population and 0.69-0.16=0.53 of the population prefers coffee. 84% and 54% are the correct answers.

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4 years ago

Read 2 more answers

Find the Area of the figure below, composed of a parallelogram and two semicircles.

Fed [463]

Two needed formulas,:

To find the area of a parallelogram, use

A = bh.

To find the area of a semicircle, use

Area = (πr^2)/2.

The area of the parallelogram is 11 x 32 or 352.

The two semicircle have the same measure.

The radius of the semicircle is (1/2)(16) or 8.

Area = (π8^2)/2

Area = 64π ÷ 2

A = 32π

There are two semicircle.

So, the area of both semicircle combined is

2(32π) or 64π.

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5 0

3 years ago

Translate the phrase into an algebraic expression.

adell [148]

Answer:

8 + $\frac{5}{w}$

Step-by-step explanation:

From the phrase, the answer is smaller(less) by 8 when compared(equal (=)) to quotient of 5 and w ...

So:

Answer - 8 = quotient of 5 and w

Here, quotient is the whole number from a division. The division here is $\frac{5}{w}$

Therefore,

Answer - 8 = $\frac{5}{w}$

Answer = 8 + $\frac{5}{w}$

Hence the phrase into algebraic expression is 8 + $\frac{5}{w}$

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4 years ago

Slader "Two balls are chosen randomly from an urn containing 8 white, 4 black, and 2 orange balls. Suppose that we win $2 for ea

kolezko [41]

Answer:

the probabilities associated with each possible value for X

for x = -2

0.308

for x = -1

0.176

for x=0

0.011

for x =+1

0.3516

for x=+2

0.088

Step-by-step explanation

See this attachment

4 0

3 years ago