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4 years ago

6th grade math help me, please. :)

Mathematics

1 answer:

lisabon 2012 [21]4 years ago

4 0

Step-by-step explanation:

Hello there!!

no need to be panic we will help you, alright. 

look solution in picture ok...

sorry for cutting in middle.

Hope it helps...

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Help please !! thank u

Vlad1618 [11]

Answer:

I think this is pythagorean theorem but I'm not sure what I got was 15 for the answer

7 0

3 years ago

Read 2 more answers

Question 4 Which expression represents f-(x) if f(x) = 11 – 10x ?

EleoNora [17]

Answer:

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Step-by-step explanation:

8 0

3 years ago

Triangle ABC has a right angle at C. Select all measurements which would mean it has a hypotenuse with a length of 10 units. a.

Delvig [45]

Option d: Angle A is 30 degrees, BC is 5 units

Option e: AC is 8 units, BC is 6 units

Explanation:

The triangle ABC has a right angle at C.

The length of the hypotenuse is 10 units.

The image of the triangle with this measurement is attached below:

Option a: Angle A is 20 degrees, BC is 2 units

$\begin{aligned}\sin 20 &=\frac{2}{h y p} \\h y p &=\frac{2}{\sin 20} \\&=5.8476\end{aligned}$

Since, hypotenuse is 10 units, Option a is not correct answer.

Option b: AC is 7 units, BC is 3 units

$\begin{aligned}A B &=\sqrt{7^{2}+3^{2}} \\&=\sqrt{49+9} \\&=\sqrt{58}\end{aligned}$

Since, hypotenuse is 10 units, Option b is not correct answer.

Option c: Angle B is 50 degrees, BC is 4 units

$\begin{aligned}\cos 50 &=\frac{4}{h y p} \\h y p &=\frac{4}{\cos 50} \\&=6.222\end{aligned}$

Since, hypotenuse is 10 units, Option c is not correct answer.

Option d: Angle A is 30 degrees, BC is 5 units

$\begin{aligned}\sin 30 &=\frac{5}{h y p} \\h y p &=\frac{5}{\sin 30} \\&=10\end{aligned}$

Since, hypotenuse is 10 units, Option d is the correct answer.

Option e: AC is 8 units, BC is 6 units

$\begin{aligned}A B &=\sqrt{8^{2}+6^{2}} \\&=\sqrt{64+36} \\&=\sqrt{100} \\&=10\end{aligned}$

Since, hypotenuse is 10 units, Option e is the correct answer.

Thus, Option d and e are the correct answers.

3 0

3 years ago

Solve for x and y: ax/b -by/a=a+b; ax-by= 2ab

Svetlanka [38]

Y=-a
x=b
a^2x-b^2y/ab=a+b
ax-by=2ab

3 0

3 years ago

At a local gas station, regular unleaded gasoline is priced at $1.10 per gallon. If it cost $16.50 to fill a cars gas tank, how

8090 [49]

The tank hold 15 gallons.Because you divide 16.50 by 1.10 .

6 0

4 years ago