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2 years ago

Please PLEASE HELP ME PLEASE

Mathematics

2 answers:

marishachu [46]2 years ago

5 0

Answer:

1. 4(x+1) 2. 9+x 3. 21+x 4. 15+x 5. 9x+2 6. 2(2x+13y) 7. 29y+5x 8. 75x 9. 28x

Korvikt [17]2 years ago

3 0

Answer:

1. 4x+4

2. 9+x

3. 21+x

4. 15+x

5. 13x+2

6. 4x+26y

7. 29y+5x

8. 75x

9. 28x

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katrin2010 [14]

Answer:

230 - 151 + 180 + (43 - 12) = 290

Step-by-step explanation:

Use PEMDAS.

Evaluate the expression in the parentheses:

230 - 151 + 180 + (43 - 12)

43 - 12 = 31

230 - 151 + 180 + 31

Add and Subtract From Left to Right:

230 - 151 + 180 + 31

79 + 180 + 31

259 + 31

290

<em>None of the given options are correct. </em>

6 0

3 years ago

I don't understand this can someone help?

pickupchik [31]

Answer:

Step-by-step explanation:

8 0

3 years ago

Sandra knows the Pythagorean identity sin 2 ⁡ θ + cos 2 ⁡ θ = 1 . If she is told that 0 ≤ θ ≤ π 2 and cos ⁡ θ = 5 12, what will

slavikrds [6]

Answer:

$\text{tan}(\theta)=\frac{\sqrt{119}}{5}$

Step-by-step explanation:

We have been given that Sandra knows the Pythagorean identity $\text{sin}^2(\theta)+\text{cos}^2(\theta)=1$ . She is told that $0\leq \theta\leq \frac{\pi}{2}$ and $\text{cos}(\theta)=\frac{5}{12}$ .

First of all, we will find value of sine theta using the given identity.

$\text{sin}^2(\theta)+\text{cos}^2(\theta)=1$

$\text{sin}^2(\theta)+(\frac{5}{12})^2=1$

$\text{sin}^2(\theta)+\frac{25}{144}=1$

$\text{sin}^2(\theta)+\frac{25}{144}-\frac{25}{144}=1-\frac{25}{144}$

$\text{sin}^2(\theta)=\frac{144-25}{144}$

$\text{sin}^2(\theta)=\frac{119}{144}$

$\text{sin}(\theta)=\sqrt{\frac{119}{144}}$

$\text{sin}(\theta)=\frac{\sqrt{119}}{12}$

$\text{tan}(\theta)=\frac{\text{sin}(\theta)}{\text{cos}(\theta)}$

$\text{tan}(\theta)=\frac{\frac{\sqrt{119}}{12}}{\frac{5}{12}}$

$\text{tan}(\theta)=\frac{\sqrt{119}*12}{5*12}=\frac{\sqrt{119}}{5}$

Therefore, $\text{tan}(\theta)=\frac{\sqrt{119}}{5}$ .

5 0

3 years ago

Find the area of this circle. Use 3 for .

weqwewe [10]

Answer:

ar40 of diameter

18ft

Step-by-step explanation:

1/2 to 1/2 is 2/4

4 0

3 years ago

How do you get 127+376=503

stepladder [879]

6 + 7 = 13
20 + 70 = 90
100 + 300 = 400
The 400 + 90 + 13 = 503

7 0

3 years ago

Read 2 more answers