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3 years ago

This is just for a brainiest

Mathematics

2 answers:

dsp733 years ago

4 0

Answer:

5x2=10

10/5=2

6x7=42

9x9=81

12x12=144

Veseljchak [2.6K]3 years ago

3 0

Answer:

panfide

Step-by-step explanation:

afeas

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4. Find the slope. Make sure to reduce.

tensa zangetsu [6.8K]

Answer:

undefined

Step-by-step explanation:

All vertical lines are undefined

1. $\frac{0-1}{4-4}$ = $\frac{-1}{0}$

Anything divided by 0 is undefined

4 0

3 years ago

Solve x -9 = 8 HELP!!!!! I am dead over here help me!!!!

kumpel [21]

Answer:

x=17

Step-by-step explanation:

x-9=8

add nine on both sides

x-9+9=8+9

the nines on the side with the x cancel each other

x=17

3 0

3 years ago

The ratio of the sides of a parallelogram is 3 : 5 and its perimeter is 48 cm, what is its sides?

pshichka [43]

Answer: 9 and 15

Explanation: For this problem we will be using the formula of the perimeter of the parallelogram and use algebraic equation to solve it.

"The perimeter of a parallelogram is 48cm"

-So we already know the perimeter of this polygon

-We don't know the other sides

-We know both sides are on a ratio of 3/5

-We know the formula for perimeter of a parallelogram is P=2(a+b)

Let's use the formula to solve this. First lets substitute values we know.

1.) Write the formula.

P=2(a+b)

2.) Replace any known values.

48=2(a+b)

3.) This part is the trick part. Since the sides of the parallelogram are on a ratio of 3:5, it means that the first side is 3 times more of any unknown value, while the second side will be 5 times more of that same value. knowing this we can turn this into an Algebraic equation.

48=2(a+b)

48=2(3x+5x)

4.) Solve.

48=2(3x+5x)

48=2(8x)

48=16x

48/16=16x/16

3=x; or x=3

5.) Now that we know our "unknown value", we can though it back into the ration to figure out the sides lengths.

First side length = 3x = 3(3) = 9

Second side length = 5x = 5(3) = 15

6). Therefore, the first side has the length of 9 and the second side has the length of 15.

7.) Check.

P=2(a+b)

P=2(9+15)

p=2(24)

p=48

48=48

6 0

3 years ago

What is the most precise name for a quadrilateral with the following vertices:

lozanna [386]

Answer:

The most precise name for a quadrilateral ABCD is a parallelogram

Step-by-step explanation:

we have

A(2,3) B(7,2) C(6,-1) D(1,0)

Plot the quadrilateral'

using a graphing tool

The quadrilateral ABCD in the attached figure

Verify the length of the sides

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

step 1

Find distance AB

A(2,3) B(7,2)

substitute

$d=\sqrt{(2-3)^{2}+(7-2)^{2}}$

$d=\sqrt{(-1)^{2}+(5)^{2}}$

$d_A_B=\sqrt{26}\ units$

step 2

Find distance BC

B(7,2) C(6,-1)

substitute

$d=\sqrt{(-1-2)^{2}+(6-7)^{2}}$

$d=\sqrt{(-3)^{2}+(-1)^{2}}$

$d_B_C=\sqrt{10}\ units$

step 3

Find distance CD

C(6,-1) D(1,0)

substitute

$d=\sqrt{(0+1)^{2}+(1-6)^{2}}$

$d=\sqrt{(1)^{2}+(-5)^{2}}$

$d_C_D=\sqrt{26}\ units$

step 4

Find distance AD

A(2,3) D(1,0)

substitute

$d=\sqrt{(0-3)^{2}+(1-2)^{2}}$

$d=\sqrt{(-3)^{2}+(-1)^{2}}$

$d_A_D=\sqrt{10}\ units$

step 5

Compare the length sides

AB=CD

BC=AD

Opposite sides are congruent

<em>Verify the slope of the sides</em>

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

step 1

Find slope AB

A(2,3) B(7,2)

substitute

$m=\frac{2-3}{7-2}$

$m=\frac{-1}{5}$

$m_A_B=-\frac{1}{5}$

step 2

Find slope BC

B(7,2) C(6,-1)

substitute

$m=\frac{-1-2}{6-7}$

$m=\frac{-3}{-1}$

$m_B_C=3$

step 3

Find slope CD

C(6,-1) D(1,0)

substitute

$m=\frac{0+1}{1-6}$

$m=\frac{1}{-5}$

$m_C_D=-\frac{1}{5}$

step 4

Find slope AD

A(2,3) D(1,0)

substitute

$m=\frac{0-3}{1-2}$

$m=\frac{-3}{-1}$

$m_A_D=3$

step 5

Compare the slopes

$m_A_B=m_C_D$

$m_B_C=m_A_D$

The slope of the opposite sides are equal, that means, opposite sides are parallel

The slopes of consecutive sides are not opposite reciprocal, that means, consecutive sides are not perpendicular

therefore

The most precise name for a quadrilateral ABCD is a parallelogram

8 0

4 years ago

SOMEONE PLEASE JUST ANSWER THIS FOR BRAINLIEST!!!

vaieri [72.5K]

Answer:

Hewo

Step-by-step explanation:

-9w^7z^7

6 0

4 years ago