3 years ago

Help me pleaseeeee :(

Mathematics

2 answers:

zhannawk [14.2K]3 years ago

7 0

Answer:

-7 x 67 =-469

Step-by-step explanation:

Mashcka [7]3 years ago

5 0

Answer:

use gooogle

Step-by-step explanation:

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Please solve the right triangle below. Round the decimals to the nearest tenth.

aniked [119]

Find $AB$ using Pythagorean Theorem,

$AB=\sqrt{12^2+9^2}=15$ .

$A=\tan^{-1}(12/9)=53.1^{\circ}$ .

$B=\tan^{-1}(9/12)=36.9^{\circ}$ .

Hope this helps.

7 0

3 years ago

Find the with of a triangle as a 15 cm high in a hypogynous of a 19 cm

Inessa05 [86]

Answer:

This other side of the triangle is equal to about 11.7 cm

Step-by-step explanation:

In order to find out the third side of the triangle we will just use the Pythagoras Theorem.

$c^{2} =a^{2} + b^{2}$

Since we know the hypotenuse and we know one of the legs, in order to find the second leg we just substitute the values and solve the equation and so we get...

$c^{2} =a^{2} + b^{2}\\19^{2} = 15^{2} + b^{2}\\361 = 225 + b^{2} \\$

$b^{2} = 361 - 225\\b^{2} = 136\\b = \sqrt{136} \\$

And so b ≈ 11.66190

8 0

3 years ago

What is the area of the rectangle shown below?

krek1111 [17]

Your answer is 8 times 4 is 32.

4 0

3 years ago

Read 2 more answers

HELP ASAP :

marishachu [46]

4.85×88=$426.80.

1) $426.80 is the answer

7 0

3 years ago

Please help me figure this one out !!!

strojnjashka [21]

These are "composite" functions.
g(x+a) means insert (x+a) into g(x) to replace every x:
g(x+a) - g(x) = -5(x+a)^2 +4(x+a) +5x^2 - 4x
= -5(x^2 + 2ax + a^2) +4x +4a + 5x^2 - 4x
Now just Multiply and sum up the answer.

5 0

3 years ago