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3 years ago

A) I and II

Mathematics

1 answer:

Yuri [45]3 years ago

6 0

Answer:

The sum of the values of Annikas 4 cards is -16

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The high temperature on Monday was -14 F.on Tuesday the high temperature was 24 F. What is the difference in high temperatures o

kotegsom [21]

24-(-14) F
=24+14 F
=38 F

4 0

4 years ago

PLZ HELP ME!!!!!!!!!!!!!!! WILL GIVE BRAINLIST

daser333 [38]

The answer is the third one

6 0

4 years ago

5x + 3y = -4 y - 2x = 6 By substitution

Assoli18 [71]

Answer:

Hello!

Solve the following system of equations by the substitution method. 5x = y + 6 2x - 3y = 4 What is the value of the y-coordinate?

Solving:

5x = y + 6 (I)

2x - 3y = 4 (II)

god i hope i helped if i did tell me so in not plz still tell me and i will make it better see ya

4 0

4 years ago

A triangle has base of 7 1/8 feet and height 6 1/4 feet. Find the area of a triangle as a mixed number.

exis [7]

Answer: The area is 22 17/64.

Step-by-step explanation:

base = 7 1/8 = 57/8

height = 6 1/4 = 25/4

area = 1/2*b*h

= 1/2*57/8*25/4

= 1425/64

= 22 17/64

6 0

3 years ago

Mary simplified an expression and got 12.9x10^4 for her answer in scientific notation. Her friend, Angela, is telling her that h

Novay_Z [31]

Answer:

Mary simplified an expression. $1.29 \times 10^{5}$ is correct representation in scientific notation.

Solution:

Given that Mary simplified an expression and got $12.9 \times 10^{4}$ for answer in scientific notation.

According to Angela, answer is incorrect. Need to find reason why Angela consider $12.9 \times 10^{4}$ as incorrect scientific notation and find the correct answer.

Let’s understand what is scientific notation of any number.

Scientific notation is a way of representing number between 1 and 10 including 1 and excluding 10 multiplied by appropriate power of 10.

According to Mary’s simplification the number she is getting is 12.9 but in scientific notation, number must be in between 1 to 10

So $12.9 \times 10^{4}$ is not correct scientific notation.

$\text { Let's rewrite } 12.9 \times 10^{4} \text { as } 1.29 \times 10^{1} \times 10^{4}=1.29 \times 10^{5}$

Now we got 1.29 which is in between 1 and 10 multiplied by $10^5$

Hence $1.29 \times 10^{5}$ is correct representation in scientific notation.

8 0

4 years ago