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3 years ago

Evaluate 3(x+4)(x+1) (x+2)(x-2) for x=4

Mathematics

2 answers:

EleoNora [17]3 years ago

7 0

Answer:

1440

Step-by-step explanation:

3(x+4)(x+1)(x+2)(x-2)

Let x= 4

3(4+4)(4+1)(4+2)(4-2)

Evaluate each parentheses

3 ( 8) (5)( 6) (2)

Multiply

1440

If you meant

3(x+4)(x+1) = 3(4+4)(4+1) = 3 * 8 *5 = 120

(x+2)(x-2)=(4+2)(4-2) = 6 *2= 12

NemiM [27]3 years ago

5 0

Answer:

1440

Step-by-step explanation:

3(x+4)(x+1)(x+2)(x-2)

3(4+4)(4+1)(4+2)(4-2)

3(8)(5)(6)(2)

1440

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Verify the identity. cot(x - pi/2) = -tan(x)

gizmo_the_mogwai [7]

Answer:

See below.

Step-by-step explanation:

$\cot(x-\frac{\pi}{2})=-\tan(x)$

Convert the cotangent to cosine over sine:

$\frac{\cos(x-\frac{\pi}{2} )}{\sin(x-\frac{\pi}{2})} =-\tan(x)$

Use the cofunction identities. The cofunction identities are:

$\sin(x)=\cos(\frac{\pi}{2}-x)\\\cos(x)=\sin(\frac{\pi}{2}-x)$

To convert this, factor out a negative one from the cosine and sine.

$\frac{\cos(-(\frac{\pi}{2}-x ))}{\sin(-(\frac{\pi}{2}-x))} =-\tan(x)$

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$\frac{\cos((\frac{\pi}{2}-x ))}{-\sin((\frac{\pi}{2}-x))} =-\tan(x)\\-\frac{\sin(x)}{\cos(x)} =-\tan(x)\\-\tan(x)\stackrel{\checkmark}{=}-\tan(x)$

8 0

3 years ago

4^4÷4^7 as a fraction

elena-s [515]

Answer: multiply it by the bisector of the photosynthesis.

obviously

Step-by-step explanation:

3 0

3 years ago

For males in a certain town, the systolic blood pressure is normally distributed with a mean of 120 and a standard deviation of

KengaRu [80]

Answer:

$G=93\ to\ 147$

Step-by-step explanation:

From the question we are told that

Mean $x= 120$

Standard deviation $\sigma= 9$

Percentage for men =99.75%

Generally the empirical rule 68%,95% and 99.7% of data value lay b/w 1,2,3 standard deviation of mean

Standard deviation n= 9

Mean x= 120

Generally the interval of systolic blood pressure for middle 99.7 of male G is mathematically given as

$G=Mean \pm 3* \sigma$

$G=120 \pm 3*9$

$G=93\ to\ 147$

6 0

3 years ago

Is my prediction right? or no

USPshnik [31]

Answer:

so does this go with what you got I would think C correct me if i'm wrong

Step-by-step When a population or group of something is declining, and the amount that decreases is proportional to the size of the population, it's called exponential decay. In exponential decay, the total value decreases but the proportion that leaves remains constant over time.

8 0

3 years ago

Someone help me with this

skad [1K]

Answer:

m∠ABC = 74

Step-by-step explanation:

The sum of the measures of three angles of any triangle is invariably equal to the straight angle, also expressed as 180 °

So you subtract the given measurements of ∠BAC (76°) and ∠ ACB (19°) from 180. 180-76-19 = 74

The measurement of angle ABC is 74°

7 0

3 years ago

Evaluate 3(x+4)(x+1) (x+2)(x-2) for x=4​

Evaluate 3(x+4)(x+1) (x+2)(x-2) for x=4