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2 years ago

I don't remember how to solve this problem I missed yesterday when we learned it. 4(x-2+y)

Mathematics

1 answer:

kow [346]2 years ago

3 0

Answer:

4x - 8 + 4y

Step-by-step explanation:

4(x - 2 + y)

4x - 8 + 4y

You multiply each term in the parenthesis by the number in front of it.

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What is the solution of the equation? (√2x-1) + 2=x

Gwar [14]

Answer:

x = 5

Step-by-step explanation:

√(2x − 1) + 2 = x

√(2x − 1) = x − 2

2x − 1 = (x − 2)²

2x − 1 = x² − 4x + 4

0 = x² − 6x + 5

0 = (x − 1) (x − 5)

x = 1 or 5

Check for extraneous solutions.

√(2(1) − 1) + 2 = 1

√(1) + 2 = 1

3 = 1

No solution

√(2(5) − 1) + 2 = 5

√(9) + 2 = 5

5 = 5

x = 5

7 0

3 years ago

Given qr = 4.8, m angle r space equals space 80 degree , and m angle p equals 42 degree ... if you want to find pq.... a. should

Lady bird [3.3K]

By applying the law of sines, the length of side PQ is equal to 7.1 units.

<h3>What is the law of sines?</h3>

The law of sines is also referred to as sine law and it can be defined as an equation that relates the side lengths of a triangle to the sines of its angles.

<h3>How to calculate the length of PQ?</h3>

Mathematically, the law of sines is given by this equation:

$\frac{sinA}{a} =\frac{sinB}{b} =\frac{sinC}{c}$

Substituting the given parameters into the formula, we have;

$\frac{sin80}{PQ} =\frac{sin42}{4.8} \\\\\frac{0.9848}{PQ} =\frac{0.6691}{4.8}\\\\0.6691PQ = 4.7270\\\\PQ = 4.7270/0.6691$

PQ = 7.1 units.

Read more on law of sines here: brainly.com/question/7922954

#SPJ1

4 0

1 year ago

A swimming pool has a diameter of 32 feet.

Setler79 [48]

Area = 256*3.14=804feet^2

4 0

3 years ago

Which body parts do birds have? scales, teeth, and beaks feathers, beaks, and hair feathers, beaks, and teeth feathers, beaks, a

Annette [7]

Answer:

head, back, throat, breast, wings, tail, and legs

7 0

2 years ago

Read 2 more answers

How do you simplify: 5(8 + 7) ?<br><br> a. 75<br> b. 65<br> c. 47<br> d. 15

tia_tia [17]

Answer:

C. 47

Step-by-step explanation:

5(8 + 7)

Expand the brackets. Brackets mean to multiply.

5(8 + 7)

5 * 8 + 7

= 40 + 7

= 47

8 0

2 years ago

Read 2 more answers