1 year ago

Jane evaluates x2-3x+5 for x=-2 below.

Mathematics

1 answer:

denis-greek [22]1 year ago

6 0

Answer: Jane incorrectly evaluated (-2)² in step 2.

Step-by-step explanation:

$(-2)^{2}=4$ , not -4.

You might be interested in

What is the probability of choosing a card from a deck of cards that is a heart or a nine?

Mila [183]

8 out of 52. There are 4 nine cards and 4 heart cards. There are 52 cards in the standard deck. So it is an 8 out of 52 chance that you will choose either a heart or a nine.

3 0

3 years ago

Please tell me if I got this one right or not

Lunna [17]

Answer:no

the answer is c

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

EVALUATE THE FUNCTION REQUESTED. WRITE YOUR ANSWER AS A FRACTION IN LOWEST TERMS

Kryger [21]

Answer:

• From trigonometry ratios:

${ \boxed{ \rm{ \sin(A) = \frac{opposite}{hypotenuse} }}} \\$

opposite → 28
hypotenuse → 35

${ \rm{ \sin(A) = \frac{28}{35} }} \\ \\ { \boxed{ \boxed{ \rm{ \: \sin(A) = \frac{4}{5} \: }}}}$

3 0

2 years ago

Daniel wants to buy cookies for her friends. The area of a cookie is 113.04 in2. What is the circumference of the cookie?

prisoha [69]

Answer:

The circumference of the cookie is 37.68 inches.

Step-by-step explanation:

We have,

The area of a cookie is 113.04 square inches.

It is circular in shape. The area of circle is given by :

$A=\pi r^2$

r is radius of circle

$r=\sqrt{\dfrac{A}{\pi}} \\\\r=\sqrt{\dfrac{113.04}{3.14}} \\\\r=6\ \text{inch}$

The circumference of circular shaped object is given by :

$C=2\pi r\\\\C=2\times 3.14\times 6\\\\C=37.68\ \text{inch}$

So, the circumference of the cookie is 37.68 inches.

7 0

2 years ago

HELP GIVING BRAINLIEST!

KengaRu [80]

Answer:

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers