All categories

2 years ago

Evaluate the expression x^2+5x-19 for x=-4

Mathematics

1 answer:

mina [271]2 years ago

3 0

Answer:

13.708

Step-by-step explanation:

You might be interested in

An amusement park ride has cars that move around a circular track at the rate of 16 revolutions in 20 seconds. To the nearest hu

astraxan [27]

Answer:

$5.03\frac{rad}{sec}$

Step-by-step explanation:

To find the angular velocity divide the revolutions by the time

$\frac{16}{20}=0.8\frac{rev}{sec}$

Remember that

$1\ rev=2\pi \ rad$

Convert rev/sec to rad/sec

$0.8\frac{rev}{sec}=0.8*(2\pi)=1.6 \pi\frac{rad}{sec}$

assume $\pi=3.1416$

$1.6(3.1416)=5.03\frac{rad}{sec}$

6 0

3 years ago

Suppose that we try to solve the matrix equation AX = B by using an inverse matrix, but find that even though the matrix A is a

Tanzania [10]

Answer:

The system will be found to be inconsistent or dependent.

Step-by-step explanation:

The matrix A will have no inverse for two different reasons:

The system is inconsistent
The system is dependent

In the latter case, the Gauss-Jordan method will find a set of parametric equations for a solution. In the former case, there is no solution.

The outcome will depend on the reason why there is no inverse.

7 0

2 years ago

Find the Volume <br> If its correct i give 5 stars a like and brainliest

Leya [2.2K]

Answer:

171 in³

Step-by-step explanation:

6 0

2 years ago

Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

kolezko [41]

The 2nd one or either the last one, I suggest the last one hope this helps!!

4 0

3 years ago

5/21 Marks

cricket20 [7]

Answer:

large jar

Step-by-step explanation:

large jar= £1.54 (divide) 440= 0.0035

small jar= £1.26 (divide) 340= 0.0037

as the large jar cost less (0.0035 > 0.0037) the large jar is the best value for money

8 0

3 years ago