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2 years ago

Help please! very confused

Mathematics

2 answers:

Lera25 [3.4K]2 years ago

5 0

Answer:

???ummm no details

Step-by-step explanation:

irga5000 [103]2 years ago

4 0

Step-by-step explanation:

Triangle and pyramid

Because the others wouldn't give you a prism

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3x + 5 = 2x + 8 =<br> help me plz

Luden [163]

Answer:

x=3

Step-by-step explanation:

4 0

2 years ago

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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

3 years ago

A) 2(x + 10)<br><br> What’s the answer

ss7ja [257]

<h2>Answer: 2x + 20</h2>

indeed

3 0

2 years ago

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Pls help this is due tomorrow-

Vladimir79 [104]

Answer:

Step-by-step explanation:

1- $1 \frac{34}{55}$

2- $1 \frac{1}{18}$

3- $\frac{67}{72}$

4- $\frac{19}{24}$

5- $1 \frac{7}{33}$

6- $\frac{19}{20}$

7- $1 \frac{1}{3}$

8- $\frac{5}{7}$

9- $\frac{5}{6}$

10- $\frac{7}{12}$

4 0

2 years ago

HELP IM SORRY PLESAADNSKSKSNX

dimaraw [331]

Answer:

hey, what is your question?

Step-by-step explanation:

8 0

2 years ago

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