2 years ago

17. Evaluate each pair of expressions. a. (-3)-8 and -3-8 b. (-3)-9 and -3-9

1 answer:

5 0

A = -11
B= -12

This is because of how calculations work in negatives. Because they are both negative they work similarly to addition

You might be interested in

8-(x+2) = 6(x-4) what is the answer is 6 or something else

Sonbull [250]

Answer:

x=30/7 or decimal x=4.28571

Step-by-step explanation:

6 0

2 years ago

A bakery sold 208 chocolate cupcakes in a day, which was 52% of the total number of cupcakes sold that day. How many total cupca

Dima020 [189]

Answer:

Step-by-step explanation:

8 0

2 years ago

Number of the day 3.59

sleet_krkn [62]

Please be a little specific.

7 0

2 years ago

When 7 is subtracted from two third of the square of a number it becomes 17 find the number

Dmitry [639]

Answer: 6 or -6

hello,

Step-by-step explanation:

Let say n the number

$\dfrac{2}{3} *n^2-7=17\\\Longrightarrow\ \dfrac{2}{3} *n^2=24\\\Longrightarrow\ n^2=\dfrac{3*24}{2}\\\Longrightarrow\ n^2=36\\\Longrightarrow\ (n-6)(n+6)=0\\\\n=6\ or\ n=-6\\$

8 0

2 years ago

What is m∠A to the nearest degree?

Anuta_ua [19.1K]

So this is a right triangle so you can use sin, cosine, or tangent. for A, you have the sides opposite and hypotenuse, which means you use sin*
sin(A) = opposite / hypotenuse
sin(A) = 56 / 75
arcsin(56/75) = A
A= about 48.3
so to the nearest degree, your answer is 48

*soh cah toa (if you dont know what that is, i can explain it)

4 0

2 years ago

Read 2 more answers