2 years ago

2. 5x + 7 + 2x Is the answer 45x?

Mathematics

2 answers:

liberstina [14]2 years ago

7 0

Answer:

Step-by-step explanation:

5x+2x+7=7x+7

Nimfa-mama [501]2 years ago

7 0

No it is not

5x+7+2x

5x + 7x are like terms add them

7x + 7 is the answer

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PLS HELP- please look at the picture below

Gnesinka [82]

9514 1404 393

Answer:

1/3

Step-by-step explanation:

To find f(2), we need √(x+1) = 2. That means x+1 = 2^2, so x = 4-1 = 3.

Then f(2) = 1/x = 1/3.

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2 years ago

What value of makes this equation true? sin(30) = cos()

masya89 [10]

Answer:

cos60°

Step-by-step explanation:

Using the cofunction identity

cos(90 - x) = sinx , then

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2 years ago

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geniusboy [140]

Answer:

Step-by-step explanation:

(1)

a1=-2

r=-2

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2 years ago

Which of the following statements is true according to the measurements in the diagram?

e-lub [12.9K]

Let's look at the corresponding ratios:

$\frac{AB}{ED}=\frac{24}{30}=\frac{4}{5}\\\frac{BC}{DC}=\frac{16}{20}=\frac{4}{5}\\\frac{AC}{EC}=\frac{21}{28}=\frac{3}{4}\\$

And we see that the three aren't equal.

Hence, $\Delta ABC$ and $\Delta EDC$ are not similar.

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n200080 [17]

Answer:

Step-by-step explanation:

$f(x)=4x^2+4x-4\ or\ f^*(x)=4x+4x-4=8x-4\\\\f(0)-\text{put}\ x=0\ \text{to}\ f(x):\\\\f(0)=4(0)^2+4(0)-4=4(0)+0-4=0-4=-4\\\\f^*(0)=8(0)-4=0-4=-4$

3 0

2 years ago