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maxonik [38]
3 years ago
14

16) One autumn morning the temperature went up from -4OC to 5OC a) By how many degrees did the temperature rise? During the afte

rnoon, the temperature then fell by seven degrees from 5OC. b) What was the temperature at the end of the afternoon?
Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
7 0

Answer:

Explain it a little more

Step-by-step explanation:

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What is the equation of the top line graphed below?
anyanavicka [17]

Answer:

I think it has to y=mx+b

Step-by-step explanation:

4 0
2 years ago
An atom of chlorine has several valence electrons in its
Vitek1552 [10]
Chlorine atom has 7 electrons in their valence shell
5 0
3 years ago
Based on Pythagorean identities, which equation is true? A. Sin^2 theta -1= cos^2 theta B. Sec^2 theta-tan^2 theta= -1 C. -cos^2
Arturiano [62]

Answer:

D

Step-by-step explanation:

our basic Pythagorean identity is cos²(x) + sin²(x) = 1

we can derive the 2 other using the listed above.

1. (cos²(x) + sin²(x))/cos²(x) = 1/cos²(x)

1 + tan²(x) = sec²(x)

2.(cos²(x) + sin²(x))/sin²(x) = 1/sin²(x)

cot²(x) + 1 = csc²(x)

A. sin^2 theta -1= cos^2 theta

this is false

cos²(x) + sin²(x) = 1

isolating cos²(x)

cos²(x) = 1-sin²(x), not equal to sin²(x)-1

B. Sec^2 theta-tan^2 theta= -1

1 + tan²(x) = sec²(x)

sec²(x)-tan(x) = 1, not -1

false

C. -cos^2 theta-1= sin^2

cos²(x) + sin²(x) = 1

sin²(x) = 1-cos²(x), our 1 is positive not negative, so false

D. Cot^2 theta - csc^2 theta=-1

cot²(x) + 1 = csc²(x)

isolating 1

1 = csc²(x) - cot²(x)

multiplying both sides by -1

-1 = cot²(x) - csc²(x)

TRUE

3 0
3 years ago
Can you please help me i will give brainly to yall if u answer please help me please go through all the images
Angelina_Jolie [31]

Answer:

her inequality is incorrect

the number of hours is greater than or equal to 6

(not sure about the first two questions cause the question is kinda confusing. just know that the inequality in the question represents "x is less than or equal to 6")

their number line is incorrect

the number line is correctly filled in

the lien should be shaded to the left

6 0
2 years ago
State 5.126 to two decimal places​
Kryger [21]

Answer:

5.13

Step-by-step explanation:

Look at the number at the end, and if it's 5 or more, round up. the 6 is greater than or equal to 5, so you round up, dropping the six and making the 2 into a 3, giving you 5.13.

7 0
3 years ago
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