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KIM [24]
3 years ago
6

Help me plz plz i need my grades up​

Mathematics
2 answers:
Daniel [21]3 years ago
7 0

Answer:

Decimal: 2.1

Fraction: 21/10

makvit [3.9K]3 years ago
5 0
Answer:
2.1
Explanation
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To the nearest thousandth, what is the decimal form of 9/14​
Karo-lina-s [1.5K]

Answer:

.643

Step-by-step explanation:

just put it in the calc and round

7 0
2 years ago
Read 2 more answers
Are the equations 9x=5x+4 and 14x=4 equivilant?​
Paha777 [63]

Answer:

No

Step-by-step explanation:

First solve both equations:

1) 9x = 5x + 4

Simplifying

9x = 5x + 4

Reorder the terms:

9x = 4 + 5x

Solving

9x = 4 + 5x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-5x' to each side of the equation.

9x + -5x = 4 + 5x + -5x

Combine like terms: 9x + -5x = 4x

4x = 4 + 5x + -5x

Combine like terms: 5x + -5x = 0

4x = 4 + 0

4x = 4

Divide each side by '4'.

x = 1

Simplifying

x = 1

2) 14x = 4

14x = 4 (divide both sides by 14 to get x)

14x/14 = 4/14

x = 0.285714285714

As you can see, the value of x in the second equations is less than one, therefore making these algebraic equations not equivalent.

4 0
2 years ago
Read 2 more answers
Solve for x. Round to the nearest tenth, if necessary.
pychu [463]

Answer:

x = 14

Step-by-step explanation.

First I would use sine to find x's value. So ----> sin(30) = 7/x ----> x sin(30) = 7 ----> x = 7/sin(30) = 14.

You Can also find that x is equal to 14 by applying the 30, 60, 90, triangle rule. Becuase '7' opposes the 30 degree angle it is 1/2 the hypotenuse, if thats the case just multiply the 7 by 2 and you have the hypotenuse length.

3 0
2 years ago
Pls help me on this, I need to know about the expressions and pictures
saul85 [17]
Start by expanding the brackets "2(x+4)". Then, start collecting similar terms (those that have "x" with each other, and those that dont have "x" go together). Finally, your answer should be "3x + 5 - 2x - 8 + 3" which is equal to just x.
6 0
3 years ago
Which transformations can be used to map a triangle with vertices A(2, 2), B(4, 1), C(4, 5) to A’(–2, –2), B’(–1, –4), C’(–5, –4
lina2011 [118]

Answer: Hewo, there! your answer is Below

a 90 clockwise rotation about the origin and a reflection over the y-axis

Step-by-step explanation:

Hope this helps you !!!

Have a great day!!!

3 0
3 years ago
Read 2 more answers
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