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3 years ago

Helppp!!!!

Mathematics

1 answer:

-Dominant- [34]3 years ago

7 0

Answer:

Step-by-step explanation:

Let's say x is the number of friends he has

4 · x = 121 - 1

4x = 120

Divide by 4 on each side

x = 30

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(2a + 3)^2<br><br> – (2a – 3)^2<br><br>.

Afina-wow [57]

Answer:

24a

Step-by-step explanation:

4 0

3 years ago

Select the 2 numbers that are between 0.15 and 1.4,<br><br>1.39<br>1.8<br>-0.13<br>-1.2<br>1.75<br>

Sedaia [141]

Answer:

1.39 and -0.13

Step-by-step explanation:

6 0

3 years ago

Find the quotient -7 divided by 14/3

Brrunno [24]

$-7:\frac{14}{3}=-7\times\frac{3}{14}=-\frac{7}{1}\times\frac{3}{14}=-\frac{\not7^1\times3}{1\times\not14_2}=-\frac{1\times3}{1\times2}=-\frac{3}{2}\\\\=-\frac{2+1}{2}=\huge\boxed{-1\frac{1}{2}}$

4 0

3 years ago

(3x-70) <br> (3y+40)<br> 120<br> x

Andru [333]

(3y+40)+(3x-70)=180

3y+3x-30=180
3y+3x=210
3(y+x)=210
y+x=70
x=70-y

meanwhile 180-120=x therefore x=60
therefore
60=70-y y=10
so x=60 y=10

8 0

3 years ago

Name the property the equation illustrates.<br> (ab)3 = a (63)<br> Accociative Property of addition

Delvig [45]

<h3><u>Question:</u></h3>

Name the property the equation illustrates

(ab)3 = a(b3)

A. Commutative property of addition

B. Associative property of Multiplication

C. Associative Property of Addition

D. Inverse Property of Multiplication

<h3><u>Answer:</u></h3>

Associative property of Multiplication

<h3><u>Solution:</u></h3>

From given equation

(ab)3 = a(b3)

We have to find the property used here

We find the brackets are interchanged

So here, given is a multiplication equation

Therefore, Associative property of Multiplication is used

<h3><u>Associative property of Multiplication:</u></h3>

This property says that when we are multiplying it does not matter where you put the parenthesis

The result will be same wherever we put the parenthesis in multiplying two or more numbers

Which means,

$a \times (b \times c) = (a \times b) \times c$

Therefore, from given,

$a \times (b \times 3) = (a \times b) \times 3$

Thus associative property of multiplication is used

8 0

4 years ago