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Dafna1 [17]
3 years ago
5

Can someone plz help me on this problem.....

Mathematics
1 answer:
Brut [27]3 years ago
7 0

Answer:

choice 1) 2-4y

Step-by-step explanation:

from the answers available, you are looking for the expression for x to substitute into the first equation.

The second equation is: x+4y = 2

To convert x+4y = 2

subtract 4y from both sides of the equation:

x+4y-4y = 2-4y

simplified:

x = 2-4y

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If every dimension of a two-dimensional figure is multiplied by k, by what quantity is the area multiplied?
Igoryamba
For example: Square has dimension a
A = a²  and if every dimension is multiplied by k new dimension would be:
A 1 = k² a² = k² A.
Or the area of rhombus: A = d1 * d 2 / 2
New area is: A 1 = k d 1 * k d 2 / 2 =  k² A
Answer: If every dimension of two-dimensional figure is multiplied by k, the area is multiplied by k².
8 0
3 years ago
1. Simplify.
mrs_skeptik [129]
<h2>1. The "required option c) 45" is correct.</h2><h2>2. The value of 8 − 2⋅3 + 7 = 9</h2><h2>3. The required "option c) 45" is correct.</h2><h2>4. The required "option a) 40" is correct.</h2><h2>5. The value of 3^2-2.3+5 = 8</h2>

Step-by-step explanation:

1. We have,

5^2 + 20

To find, the value of 5^2 + 20 = ?

∴ 5^2 + 20

= 5 × 5 + 20

= 25 + 20

= 45

Thus, the "required option c) 45" is correct.

2. We have,

8 − 2⋅3 + 7

To find, the value of 8 − 2⋅3 + 7 = ?

∴ 8 − 2⋅3 + 7

= 8 - 6 + 7

= 15 - 6

= 9

Thus, the value of 8 − 2⋅3 + 7 = 9

3. We have,

6^2+3^2

To find, the value of 6^2+3^2 = ?

∴ 6^2+3^2

= 6 × 6 + 3 × 3

= 36 + 9

= 45

Thus, the required "option c) 45" is correct.

4. We have,

2^{3} +4.8

To find, the value of 2^{3} +4.8 = ?

∴ 2^{3} +4.8

= 2 × 2 × 2 + 4 × 8

= 8 + 32

= 40

Thus, the value of 2^{3} +4.8 = 40

Thus, the required "option a) 40" is correct.

5 . We have,

3^2-2.3+5

To find, the value of 3^2-2.3+5 = ?

∴ 3^2-2.3+5

= 3 × 3 - 2 × 3 + 5

= 9 - 6 + 5

= 14 - 6

= 8

Thus, the value of 3^2-2.3+5 = 8

4 0
3 years ago
The inner dimensions of an in-ground swimming pool are: width = 13.0 ft, length = 18.0 ft, and depth = 9.0 ft. The pool walls an
lawyer [7]
The answer: a) 386208

And you can see the method solution

Note: don't forget put heart ♥️ .

4 0
3 years ago
Which line is a graph of the equation x = 6? Identify the intercept.
Step2247 [10]
Correct answer is D.

Line x = a is parallel with y-axis and passes through the point (a,0).

So our line is parallel with y-axis and passes through the point (6,0).
3 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=3x%7D%5E%7B2%7D%20%20%2B%205x%20-%202%20%3D%200" id="TexFormula1" title="3x}^{2} + 5x - 2 = 0
Katen [24]
X=1/3 or x=-2
explanation:
Find factors of 3 and 2 which subtract to make 5.
We should realise that (3x2) - 1 = 5.
Find the cross products and subtract to get 5. Add in the signs. One of the factors must be 0.
3 0
4 years ago
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