All categories

3 years ago

Please help me I need the answers in 30 minutes!!

Mathematics

1 answer:

Crank3 years ago

6 0

Answer:

a.7

b.6.8

Step-by-step explanation:

You might be interested in

Find the distance between each pair of points (-1 4) (1 -1)

pickupchik [31]

Answer:

$\displaystyle d = \sqrt{29}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra II

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Point (-1, 4)

Point (1, -1)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute [DF]: $\displaystyle d = \sqrt{(1+1)^2+(-1-4)^2}$
Add/Subtract: $\displaystyle d = \sqrt{(2)^2+(-5)^2}$
Exponents: $\displaystyle d = \sqrt{4+25}$
Add: $\displaystyle d = \sqrt{29}$

7 0

3 years ago

HELP QUICK PLS I HAVE NO IDEA HOW TO DO THIS

Talja [164]

The average is found by adding all the temperatures together, then dividing by the number of days.

Since the average for five days was 63, then the total of the temperatures need to equal 63 x 5 = 315.

The total for the first four days was : 56 + 60 + 79 + 70 = 265

The fifth day is 315 - 265 = 50 degrees.

6 0

3 years ago

If AB has endpoints A(-15,9) and B(0,3) what is the slope of AB

AysviL [449]

Answer:

-2/5

Step-by-step explanation:

slope= (y2-y1)/(x2-x1)

= (3-9)/(0+15)

= -6/15

= -2/5

7 0

3 years ago

Five times the sum of three times a number and 4 is -10, find the number.

Minchanka [31]

Answer:

-2

Step-by-step explanation:

5[3x+4)]=-10

15x+20= -10

15x=-30

x= -2

5 0

4 years ago

The graph of y=-3x+4 is: pls pls pls help

frutty [35]

Answer:

D. A line that shows only one solution to the equation

4 0

3 years ago