3 years ago

Evaluate x2 + 3x – 7+ 8 when x = 4.

Mathematics

2 answers:

antiseptic1488 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

Substitute 4 for x into the expression x^2+3x−7+8 and then simplify using the order of operations.

4^2+3(4)−7+8

16+12−7+8

Karo-lina-s [1.5K]3 years ago

3 0

Answer:

Step-by-step explanation:

Since they have given you x = 4, simply sub it into the equation,

(4)^2 + 3(4) - 7 + 8

= 29

You might be interested in

Can anyone help please?

katen-ka-za [31]

Answer:

A'(-3, 12)
B'(9, 6)
C'(-6, -6)

Step-by-step explanation:

Dilation about the origin multiplies each coordinate value by the dilation factor.

For dilation factor k, the new coordinates are ...

(x, y) ⇒ (kx, ky)

Your dilation factor is 3, so the transformation is ...

(x, y) ⇒ (3x, 3y)

A(-1, 4) ⇒ A'(-3, 12)

B(3, 2) ⇒ B'(9, 6)

C(-2, -2) ⇒ C'(-6, -6)

5 0

2 years ago

the company found that an experienced surveyor can survey a roadbed in 5 hours. An apprentice needs 8 hours to survey the same s

dedylja [7]

40 hours is the answer

7 0

3 years ago

What is the answer when u covert the fraction 9/20 to decimal

ozzi

$\dfrac{9}{20}=\dfrac{45}{100}=0.45$

7 0

3 years ago

HOW TO CONSENTRATE ON STUDY?

Ad libitum [116K]

Answer:

Listen to music or watch a video about what your about to study. Or do what I do... eat while studying

Step-by-step explanation:

4 0

3 years ago

use a mental math strategy to find 4,290+3,602. explain how to check your answer using a different strategy.

Marianna [84]

=7,892 , you could write out your numbers, then line them up to then add them.

5 0

3 years ago