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2 years ago

Which facts could be applied to simplify this expression?Ckeck all that apply 5x+3y+(-x)+6z

Mathematics

2 answers:

Rufina [12.5K]2 years ago

8 0

Answer:

A, C, and D

Step-by-step explanation:

I just took the test.

kenny6666 [7]2 years ago

4 0

Answer:

5x+3y+(-x)+6z

5x+(-x)+3y+6z

4x+3y+6z

The facts to apply is PEMDAS which is parenthesis,exponents, multiplication,division,addition and subtraction.

Then group like terms if there are any.

You finally get to a simplified answer if there are no like terms

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Given: ∆PQR, m∠R = 90° m∠PQR = 75° M ∈ PR , MP = 18 m∠MQR = 60° Find: RQ

tensa zangetsu [6.8K]

Answer: RQ= 8.99 ( approx)

Step-by-step explanation:

Let MR= x

Since, In triangle, PRQ, tan 75°= $\frac{18+x}{RQ}$

⇒ RQ= $\frac{18+x}{tan 75^{\circ}}$

Now, In triangle MRQ,

tan 60°= $\frac{18+x}{RQ}$

⇒ RQ= $\frac{x}{tan 60^{\circ}}$

On equating both values of RQ,

$\frac{18+x}{tan 75^{\circ}}=\frac{x}{tan 60^{\circ}}$

⇒ $\frac{18+x}{x}=\frac{tan 75^{\circ}}{tan 60^{\circ}}$

⇒ $\frac{18+x}{x}=2.15470053838$

⇒ $18=2.15470053838x-x$

⇒ $x=15.5884572681$ ≈15.60

Thus RQ=8.99999999999≈8.99

6 0

3 years ago

Add and Subtract Fractions:

Pachacha [2.7K]

1. 7/10(1/5=2/10)
2. 1/12(1/2=6/12)

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2 years ago

Lateral area of cylinder with r=4 h=5

yulyashka [42]

Answer:

formula: 2πrh

Step-by-step explanation:

2πrh= 2×π×4×5≈125.66371

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2 years ago

Find the gradient of the line segment between the points N(-1,2) and M(-6,3)

siniylev [52]

Answer:

1/5

Step-by-step explanation:

Gradient is another word for slope. To find the gradient, we have to use a formula.

8 0

2 years ago

What is the answer? Please explain.<br><br> (5x^2 -3) + (2x^2 - 3x^3)

ale4655 [162]

Answer:

(5x^2-3) +(2x^2-3x^3)

=3x^3+5x^2+2x^2-3

= 3x^3 +7x^2 -3

Step-by-step explanation:

hope this is correct cuz I'm not an expert...

5 0

2 years ago