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3 years ago

Find the given measures

Mathematics

2 answers:

bonufazy [111]3 years ago

8 0

Answer:

Step-by-step

Mama L [17]3 years ago

3 0

Answer:

75°

Step-by-step explanation:

The measure of an arc is the same as the measure of the central angle that intercepts it, thus

m EF = 75°

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PLEASE HURRY

Ira Lisetskai [31]

Answer:

C. 2.8 * 10^-5

Step-by-step explanation:

Ok so its been a while since I've done these but pretty sure c is the answer. (Double check to make sure I'm correct)

8 0

3 years ago

Read 2 more answers

Penny invested $320 at the start of the year. At the end of the year, she had $345. What is the annual effective yield of her in

xeze [42]

Answer:7.18%

Step-by-step explanation:

5 0

3 years ago

Part 1) A school is selling tickets to a play. Tickets cost $12 at the door and $8.50 if purchased in advance. The school has a

Tems11 [23]

Answer:

See below

Step-by-step explanation:

<u>Given:</u>

Tickets cost $12 at the door, number of tickets d
Tickets cost $8.50 if purchased in advance, number of tickets a
Minimum target from tickets sold $1050

<u>Required inequality to meet the goal:</u>

12d + 8.5a ≥ 1050

<u>If a = 36 then minimum value of d:</u>

12d + 36*8.5 ≥ 1050
12d + 306 ≥ 1050
12d ≥ 1050 - 306
12d ≥ 744
d ≥ 744/12
d ≥ 62

Minimum 62 tickets must sell

6 0

3 years ago

What is a prime number grater than 14 but less than 18?

solmaris [256]

It is the number 17.

5 0

3 years ago

Read 2 more answers

Cedric completed the square for the quadratic expression 5x^2−40x+15 in order to determine the minimum value of the expression,

Olegator [25]

Answer:

Step 3 is not correct (should be $(x-4)^2$ , not $(x+4)^2$

Step-by-step explanation:

The expression that we have to simplify is:

$5x^2-40x+15$

We proceed step-by-step, in order to find the mistake did by Cedric:

1) First, we factorize the 5 outside:

$5(\frac{5x^2}{5}-\frac{40x}{5}+\frac{15}{5})=5(x^2-40x+3)$ --> this step is correct

2) We add +16 and -16 inside the brackets:

$5(x^2-8x+16-16+3)$ --> this step is correct

3) We rewrite the term $(x^2-8x+16)$ as the square of a bynomial, which is $(x-4)^2$ , so the expression becomes

$5((x-4)^2-16+3)$ --> we notice that this step is wrong: in fact, Cedric wrote $(x+4)^2$ , which is not correct.

4) Now we continue: we rewrite -16+3 as -13,

$5((x-4)^2-13)$

5) Finally, we multiply the 5 by the terms in the bracket:

$=5(x-4)^2-65$

5 0

3 years ago