All categories

3 years ago

Karin wants to use the distributive property to find the value of 19·42+19·58 mentally. Which expression can she use?

Mathematics

1 answer:

katrin2010 [14]3 years ago

7 0

19 * 42 + 19 * 58 =
19(42 + 58) =
19 * 100 =
1900

You might be interested in

PLEASE HELP! 40 POINTS

Vedmedyk [2.9K]

I'd start with setting up the equations. Calling x the number of students in most popular country 1, and y in country 2.

x + y = 44740

x - y = 5672

now solve for x1 and x2. You can subtract second from first:

0 + 2y = 39068

y = 19534

x = 5672 + 19534 = 25206

Add a sentence to answer it in words.

7 0

2 years ago

Read 2 more answers

Solve this system by substitution. <br> Y=-8x-23<br> Y=-5x-14

matrenka [14]

$set\ them\ equal\ to\ each\ other \\ -8x-23=-5x-14 \\ -3x-23=-14 \\ -3x=9 \\ x= \frac{9}{-3} \\ x=-3 \\ \\ plug\ in\ OG\ equation \\ y=-8x-23 \\ y=-8(-3)-23 \\ y=24-23 \\ y=1 \\ \\ \boxed {(-3,1)}$

7 0

3 years ago

Read 2 more answers

Determine the type of triangle that is drawn below.

LuckyWell [14K]

Answer:

Isosoles <em>triangleddndnndnendndne</em>

5 0

2 years ago

Given f(x)=1/x+5 and g(x)=x-2

vladimir1956 [14]

For this case we have the following functions:

$f (x) = \frac {1} {x + 5}\\g (x) = x-2$

We must find f (g (x)). So:

$f (g (x)) = \frac {1} {(x-2) +5} = \frac {1} {x-2 + 5} = \frac {1} {x + 3}$

Finally we have to:

$f (g (x)) = \frac {1} {x + 3}$

For the function to be defined the denominator must be different from 0. That is x different from -3.

Answer:

Option B

3 0

2 years ago

Plz Help! 30 Points!

Ira Lisetskai [31]

45.2 is the constant hope this helps! please give branliest

4 0

2 years ago

Read 2 more answers