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3 years ago

Do all triangles have right angles why or why not

2 answers:

8 0

No all triangles have right angle a right angle is a angle measurement of 90 degrees. some triangles are equal sides yes like 60 degrees on each angle. and the angle must equal 180 degrees. not 360 that is a whole different shape.

Papessa [141]3 years ago

3 0

Not all triangles have right angles. A triangle is simply a closed figure with three sides and three angles, the sum of the degrees of which add up to 180°.

For instance, an equilateral triangle will will have all three angles equal to each other (60°, 60°, 60<span>°).

Some triangles may have right angles (90</span><span>°), but not all do.
Hope that helped =)</span>

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Shawna found out there are 4 yellow pencils for every blue pencil. Write an equation. Explain your equation

Aneli [31]

Answer:

4-4

Step-by-step explanation:

5 0

4 years ago

Need help please. Thanks so much.

Bingel [31]

Answer:

$(-1,\frac{17}{6})$

$(3,\frac{3}{2})$

$(-5,\frac{25}{6})$

Step-by-step explanation:

The given equation is $2x+6y=15$

We substitute the ordered pairs to see which ones satisfies the equation.

For (-1,-8), we put x=-1 and y=-8 to get:

$2(-1)+6(-8)=^?15$

$-2+-48=^?15\\-50=^?15$

This is not true.

For $(-1,\frac{17}{6}))$ we put x=-1 and $y=\frac{17}{6}$ to get

$2(-1)+6*\frac{17}{6})=15\\ -2+17=15\\15=15$

This is true

For (3,3/2) we have 2(3)+6(3/2)=15

This implies 6+9=15

15=15

This is also True

For (-5,25/6), we have 2(-5)+6(25/6)=-10+25=15

This is also true.

8 0

4 years ago

Four friends are order pizza from a take away.

Butoxors [25]

Answer:

Sam ate the most pizza.

Step-by-step explanation:

Mathew: 0.8 is equal to 80%

To get a percentage, you need to move the decimal two places to the right.

Lily: 3/4 = 75%

George: 77%

Sam: 82%

3 0

2 years ago

A certain function h(x) contains the point (8,-2). Find the value of h^-1(-2) . Explain your answer.

pychu [463]

Given:

A certain function h(x) contains the point (8,-2).

To find:

The value of $h^{-1}(-2)$ .

Solution:

If a function is defined as

$f(x)=\{(a,b):a\in R,b\in R\}$

Then, its inverse is defined as

$f^{-1}(x)=\{(b,a):a\in R,b\in R\}$

It is given that, a certain function h(x) contains the point (8,-2). It means, its inverse $h^{-1}(x)$ contains the point (-2,8). So, the value of inverse function is 8 at x=-2, i.e.,

$h^{-1}(-2)=8$

Therefore, the value of $h^{-1}(-2)$ is 8.

4 0

3 years ago

Please help ASAP!!!!

Sliva [168]

Answer:

Step-by-step explanation:

figure it out kid

6 0

3 years ago