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2 years ago

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Mathematics

1 answer:

Ulleksa [173]2 years ago

7 0

Answer:

what is wrong with you bro

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3. Complete the sentence by choosing the proper option from the given choices.

DanielleElmas [232]

Answer:

B. is exactly 1 triangle

Step-by-step explanation:

For any given triangle, the sum of the internal angles is $180^{o}$ . Thus from the given question, adding the given angles;

30° + 70° + 80° = $180^{o}$

Therefore, only one triangle can be produced with the given measure of angles. This implies that there is exactly one triangle. So that the correct option is B.

3 0

2 years ago

Solve the equation. Round to the nearest hundredth. Show work.

Burka [1]

Answer:

$x=-0.75$

Step-by-step explanation:

The given equation is

$4^{-5x-7}=6^{2x-1}$

We take logarithm of both sides to base 10.

$\log(4^{-5x-7})=\log(6^{2x-1})$

$(-5x-7)\log(4)=(2x-1)\log(6)$

We expand the brackets to get;

$-5x\log(4)-7\log(4)=2x\log(6)-\log(6)$

Group similar terms;

$-7\log(4)+\log(6)=2x\log(6)+5x\log(4)$

$-7\log(4)+\log(6)=(2\log(6)+5\log(4))x$

$\frac{-7\log(4)+\log(6)}{(2\log(6)+5\log(4))}=x$

$x=-0.752478$

To the nearest hundredth.

$x=-0.75$

3 0

3 years ago

Simplify 2x + x. What is the answer to this?

larisa [96]

Answer:

Step-by-step explanation:

2x+x = 3x

5 0

3 years ago

Read 2 more answers

In a race , Ram covers 5 km in 20 min. How much distance will he cover in 100 min ?

bulgar [2K]

Answer:

25 km

Step-by-step explanation:

1 km in 4m

100/4 = 25

25km

4 0

3 years ago

Find all angles, 0 ≤C<360 that satisfy the equation below, to the nearest tenth of a degree.

ludmilkaskok [199]

Move all the terms involving the sine to one side, and all the numbers to the other:

$9\sin(c)-2=\sin(c)-7 \iff 8\sin(c) = -5\iff \sin(c)=-\dfrac{5}{8} \iff c = \arcsin\left(-\dfrac{5}{8}\right)\approx 321.3$

7 0

3 years ago