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3 years ago

6

15 points!!

1 answer:

saw5 [17]3 years ago

5 0

Answer:

If the hypotenuse and one leg of a right triangle are congruent to the hypotenuse and one leg of another right triangle, then the triangles are congruent.

Step-by-step explanation:

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How to simplify the square root of 3 over the square root of 21

Alika [10]

3 * 7 = 21, so

$\sqrt{21}=\sqrt{3\cdot7}=\sqrt3\sqrt7$

Then

$\dfrac{\sqrt3}{\sqrt{21}}=\dfrac1{\sqrt7}$

and you can rationalize the denominator to write this as

$\dfrac1{\sqrt7}\cdot\dfrac{\sqrt7}{\sqrt7}=\dfrac{\sqrt7}7$

7 0

4 years ago

Read 2 more answers

Dvinal [7]

Answer:

26

Step-by-step explanation:

its correct

3 0

3 years ago

I’m confused on this question

NNADVOKAT [17]

So what you would want to do is plot the points in a graph, when you do so you line the points and it will give you a triangle.

So in conclusion it should be, a.) Isosceles

7 0

3 years ago

The length and width of a rectangle are ( 2x -5) and ( 3 x +4) What is the Perimeter?

Stella [2.4K]

Answer:

$\fbox{ \sf{Perimeter \: of \: a \: rectangle = 10x - 2}}$

Step-by-step explanation:

$\star{ \sf{ \: \: Length \: of \: a \: rectangle ( l ) = (2x - 5) }}$

$\star{ \sf{ \: Width \: of \: a \: rectangle ( w ) = (3x + 4)}}$

$\star{ \sf{ \: \: Perimeter \: of \: a \: rectangle = ?}}$

$\boxed{ \bold{ \sf{Perimeter \: of \: a \: rectangle = 2(l + w)}}}$

$\hookrightarrow{ \sf{Perimeter \: of \: a \: rectangle = 2(2x - 5 + 3x + 4)}}$

$\text{Step \: 1 : \: Collect \: like \: term}$

$\text{Like \: terms \: are \: those \: which \: have \: the \: same \: base}$

$\hookrightarrow{ \sf{2(2x + 3x - 5 + 4)}}$

$\hookrightarrow{ \sf{2(5x - 5 + 4)}}$

$\text{Step \: 2 \: : \: Subtract \: 4 \: from \: 5}$

$\text{Remember !\: : the \: negative \: and \: positive \: integers \: are \: always \: subtracted \: but \: posses \: the \: sign \: of \: the \: bigger \: integer}$

$\hookrightarrow{ \sf{2(5x - 1)}}$

$\text{Step \: 3 \: : \: Distribute \: 2 \: through \: the \: parentheses}$

$\hookrightarrow{ \sf{2 \times 5x - 2 \times 1}}$

$\hookrightarrow{ \sf{10x - 2}}$

$\sf{∴ \: The \: perimeter \: of \: a \: rectangle = 10x - 2}$

$\text{Hope \: I \: helped !}$

$\text{Best \: regards ! }$

~ $\text{TheAnimeGirl}$

5 0

3 years ago

Find the measure of the angle.<br> Can someone help?<br> I need to show the work.

kvv77 [185]

The bottom one is 70 the top one is 60 I’m not good at explaining things so sorry if you need it

4 0

3 years ago