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VikaD [51]
3 years ago
8

Please simplify this! 14x - 4 - 2x - 3 = ​

Mathematics
2 answers:
Fittoniya [83]3 years ago
8 0

Answer:

12x-7=

Step-by-step explanation:

Just do -3 + -4 and 14x - 2x

Debora [2.8K]3 years ago
3 0

Answer:

12x - 7 <em>or </em>-7 + 12x <em>(changing the order of the values will not change the answer!)</em>

Step-by-step explanation:

identify the first set of like terms that you're going to combine. i'm going to start with the x terms. you don't have to start with those, but that's just how i'm going to do it.

<u>14x</u> - 4 <u>- 2x</u> - 3

combine the first set of like terms.

14x - 2x

after subtracting 2x, you're left with 12x.

identify the remaining like terms from the original expression.

14x <u>- 4</u> - 2x <u>- 3</u>

combine the remaining like terms.

-4 - 3 <em>aka -4 + -3</em>

after subtracting 3 from -4, you're left with -7.

i hope this helps! have a great day <3

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Step-by-step explanation:

plug in a number for y.

ex) x=0 y=1

y=-x + 1

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5 0
2 years ago
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3 years ago
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In ∆MNP, m∠N = 90º, NH – altitude, m∠P = 21º, PM = 4 cm. Find MH.
Sveta_85 [38]

Answer:

0.51 cm

Step-by-step explanation:

In right triangle MNP, MP = 4 cm, m∠N = 90°, m∠P = 21°

By the sine definition,

\sin \angle P=\dfrac{\text{Opposite leg}}{\text{Hypotenuse}}=\dfrac{MN}{MP}\\ \\MN=MP\sin \angle P\\ \\MN=4\sin 21^{\circ}\approx 1.43\ cm

Now, consider right triangle HMN (it is right because NH is an altitude). By the cosine definition,

\cos \angle M=\dfrac{\text{Adjacent leg}}{\text{Hypotenuse}}=\dfrac{MH}{MN}\\ \\MH=MN\cos \angle M

In the right triangle, two acute angles are always complementary, so

m\angle M=90^{\circ}-m\angle P=90^{\circ}-21^{\circ}=69^{\circ}

Thus,

MH=1.43\cos 69^{\circ}\approx 0.51\ cm

7 0
3 years ago
What is the 7th term in the sequence of square numbers?
12345 [234]

Answer:

49.

Step-by-step explanation:

To solve, you can simply list the square numbers in order...

1^2, 2^2, 3^2, 4^2, 5^2, 6^2, 7^2.

1, 4, 9, 16, 25, 36, 49.

Hope this helps!

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The equation of the line is y=-2x+3. 
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