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svp [43]
2 years ago
14

Can somebody help me with these 3. Will mark brainliest.

Mathematics
1 answer:
Ira Lisetskai [31]2 years ago
8 0
Not 100% but 1) 3 2) true 3) false
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Plzz<br> Help with letter A<br> Im horrible at area :( <br> Plzzz <br><br> Ty
Karo-lina-s [1.5K]
One side let it be 5 1/2, so 5 units and a half of one and then the other side make it 7 units wide.
Then connect the two end points to make a triangle, the area would be 19 1/4

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6 0
2 years ago
I'm not sure how I'm supposed to use this equation.can someone help me and explain?
masha68 [24]
So QRS equals to 158 degrees. Therefore, you need to do 8x+8+2x=158. This is so then you can find x. In order to find x, you'll need to combine the 2x and 8x(10x+2=158). Then subtract 2 from both sides(10x=156). Finally divide by 10(x=15.6). In order to find TRS, multiply 15.6 by 2 to get the angle measure. If you want to find QRT, plug 15.6 into the equation(multiply 8 and 15.6 and add 8=132.8)
6 0
3 years ago
A circle has a diameter of 35 cm. What does the circumference of the circle
Afina-wow [57]

Answer:

c=109.96

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Use the diagram of the right triangle above and round your answer to the nearest hundredth.
Svetlanka [38]

Option a: 17.32 \ {m} is the length of b

Explanation:

The angle of B is \angle B=60^{\circ} and a=10 \ m

We need to determine the length of b.

First, let us determine the angle of A.

Since, ABC is a triangle, then all the angles add up to 180°

Thus, we have,

\angle A+\angle B+\angle C=180^{\circ}

\angle A+60^{\circ}+90^{\circ}=180^{\circ}

       \angle A+150^{\circ}=180^{\circ}

                   \angle A=30^{\circ}

Thus, the angle of A is \angle A=30^{\circ}

Now, we shall determine the length of b using the sine law formula.

The formula for sine law is given by,

\frac{a}{\sin A}=\frac{b}{\sin B}

where a=10 \ m , \angle A=30^{\circ} , \angle B=60^{\circ}

Thus, we have,

\frac{10}{\sin 30}=\frac{b}{\sin 60}

Simplifying, we get,

\frac{10}{0.5}=\frac{b}{0.866}

Multiplying both sides by 0.866, we get,

\frac{10\times0.866}{0.5}=b

Multiplying the numerator, we have,

\frac{8.66}{0.5}=b

Dividing, we get,

17.32=b

Thus, the length of b is b=17.32 \ m

Hence, Option a is the correct answer.

7 0
2 years ago
Write the equation in standard form. <br> 5−3(x−2y)=1−5x
Irina18 [472]

Answer:

2x+6y=-4

Step-by-step explanation:

5 0
3 years ago
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