All categories

3 years ago

Simplify the expression. 7y + 4 + 9 - 2y PLEASE HELP ME MY LIFE DEPENDS ON IT

Mathematics

2 answers:

balu736 [363]3 years ago

6 0

Answer:5y+13

Step-by-step explanation:

mote1985 [20]3 years ago

6 0

Answer:

5y+13

Step-by-step explanation:

You add 7y and -2y

and then add 4+9

which is 5y+13

You might be interested in

Help me with this please!

DedPeter [7]

Answer:

Area of triangle = 20√2

Step-by-step explanation:

Formula:

Area of triangle = bh/2

b - base of triangle

h - height of triangle

Distance formula

d = √(x₂ - x₁)² +(y₂ - y₁)²

From the figure we can see that, the given triangle is right angled triangle.

Base = AC and Height = AB

To find AB and AC

A(1,3), B(4,7) and C(9, -5)

AB = √(4 - 1)² +(7 - 3)² = √(3² + 4²) = 5

AC = √(9 - 1)² +(-5 - 3)² = √(8² + -8²) = 8√2

To find the are of triangle

Area = bh/2 = (5* 8√2)/2 = 20√2

Therefore the area of triangle = 20√2 square units

8 0

3 years ago

Read 2 more answers

Can somebody help me as soon as possible.

Evgen [1.6K]

Answer: x= -0.2

Step-by-step explanation:

4 0

2 years ago

Write an expression with parentheses (don't simplify!) to represent the following quantity:

AveGali [126]

So this would be:
5(173 + 32)
Because the 5 in front is the "5 times" part.
Hope this helps!

5 0

3 years ago

What is (15x-12)+(5x-18)=180 what is x

MissTica

x = 21/2

or if you want it a decimal

x = 10.500

8 0

2 years ago

The midpoint of the line segment from upper p 1p1 to upper p 2p2 is left parenthesis negative 1 comma 5 right parenthesis(−1,5).

aliya0001 [1]

The coordinates of the second point are (2, 4).

The midpoint formula is:
$m=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

Substituting our information, we have:

$(-1, 5)=(\frac{-4+x_2}{2},\frac{6+y_2}{2})$

This means that
$-1=\frac{-4+x_2}{2} \text{ and } 5=\frac{6+y_2}{2}$

Multiply both sides of both equations by 2 to cancel it:
$-1\times2=(\frac{-4+x_2}{2})\times2 \text { and } 5\times2=(\frac{6+y_2}{2})\times2
\\
\\-2=-4+x_2 \text { and } 10=6+y_2
\\-2+4=-4+x_2+4 \text { and } 10-6=6+y_2-6
\\2=x_2 \text{ and } 4=y_2$

This gives us our coordinates (2, 4)

3 0

3 years ago