Ask question

Ask question

All categories

2 years ago

10

Shown here mathematical step . Identify the mathematical reason or property used to simplify from the first step to the second s

tep.
7(A+13)
7A+91

1 answer:

Xelga [282]2 years ago

7 0

It’s using the distributive method. 7 x a is 7A and 7 x 13 is 91, therefor it is 7A+91.

You might be interested in

750 feet tall how many stories would the building have

liberstina [14]

Answer:

Well if a story is 14-16 feet tall, then it would be about 50 floors.

Step-by-step explanation:

Each story is 14-16 feet, and if you meet in the middle (15 feet) just divide 750 by 15, you get 50.

6 0

2 years ago

3 - 6k + 9g - 11 + 7g<br>(Distribute it with like terms and stuff)

AURORKA [14]

Answer:

-6k+16g-8

Step-by-step explanation:

simplify

6 0

2 years ago

If x does not equal 16 then 2x+10 does not equal 42

Lady bird [3.3K]

Answer:

The answer is

True

5 0

2 years ago

Read 2 more answers

Evaluate the function<br> f(x)= 7.45x + 33.7 at x= -4.3

slavikrds [6]

First, you have to substitute for x, which would make the problem f(x)=7.45(-4.3)+33.7
Now, you just have to use the PEMDAS method (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction)
f(x)= -32.035+33.7
f(x)=1.665

6 0

3 years ago

Tyler is offered to choose between three boxes that look identical. The first box contains 1 red pills and 19 blue pills, the se

Dafna1 [17]

Answer:

A) 0.15

B) 0.36

Step-by-step explanation:

First Box consist 1 red pills and 19 blue pills

second box consist 6 red pills and 14 blue pills

Third box consist 2 red pills and 18 blue pills

a) Prob ( randomly chosen pill is red) $= \frac{1}{3} \times \frac{1}{20} + \frac{1}{3} \times \frac{6}{20} + \frac{1}{3} \times \frac{2}{20}$

$\frac{1}{60} (1+6+2) = 0.15$

b)Prob ( 1 reds and 10 blue pilss) = $\frac{1}{3} \frac{^1C_1\times ^{19}C_{10}}{^{20}C_{11}} + \frac{1}{3} \frac{^6C_1\times ^{14}C_{10}}{^{20}C_{11}} + \frac{1}{3} \frac{^2C_1\times ^{18}C_{10}}{^{20}C_{11}}$

$= \frac{1}{3} 1.106 = 0.368$

7 0

2 years ago