2 years ago

50 POINTS! WILL MARK BRAINLEST! NEED IN 10 - 15 MINUTES!

Mathematics

1 answer:

masha68 [24]2 years ago

7 0

Answer:

(2,14)

14/2=7

14+7=21

21 is final answer

Erika had a 95% chance of guessing wrong

20 can be seen as 100%

the % will go down by 5's because of the original number

.5*20=

This will give you a 95% success rate.

You might be interested in

Write an equation to convert a diamonds weight and carrots to its weight in milligrams

monitta

I know diamonds I think don't you have to divide

8 0

2 years ago

0.000014565 in scientific notation

Eddi Din [679]

1.4565 * 10 ^ - 5

I would really really appreciate it if you marked me as brainiest ☆〜（ゝ。∂）

8 0

2 years ago

Which methods will determine 70% of 42?

Dennis_Churaev [7]

Answer:

Step-by-step explanation:

Given

(3x + 7)(2x - 6)

Each term in the second factor is multiplied by each term in the first factor, that is

3x(2x - 6) + 7(2x - 6) ← distribute both parenthesis

= 6x² - 18x + 14x - 42 ← collect like terms

= 6x² - 4x - 42 → C

5 0

2 years ago

Read 2 more answers

5. Give the domain and range for this

skad [1K]

Answer:

d={1,-1,2,-2,4,-3,3}

r={1,4,9}

8 0

3 years ago

Basic geometry question plsss

SSSSS [86.1K]

Answer:

x=53

Step-by-step explanation:

pythagoras theorem

a^2 + b^2 =c^2

here a and b are two small sides and c is hypotenuse (longest side)

28^2 + 45^2 = c^2

784 + 2025 =x^2

2809 =x^2

$\sqrt{2809}$ =x

53 =x

7 0

2 years ago