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Thepotemich [5.8K]
3 years ago
5

A rectangular backyard has dimensions represented by the expressions shown. which expression represents the perimeter of the bac

kyard?
A. 4x-2
B. 3x+2
C. 6x^2+4
D. 6x+4​
Mathematics
1 answer:
tester [92]3 years ago
6 0

Answer:

Do you have the figure Friend?

If yes please attach it too!

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In triangle ABC angle A=45 angle B =40 and a=7.Which equation should you solve to find b?
coldgirl [10]

We have been given that in triangle ABC angle A=45 angle B =40 and a=7. We are asked to find the equation that we can use to solve for 'f'.

We have two angles and opposite sides to these angles.

We will use Law of Sines to solve our given problem.

\frac{a}{\sin(A)}=\frac{b}{\sin(B)}=\frac{c}{\sin(C)}, where a, b and c are opposite sides corresponding to angles A, B, and C respectively.

The angle opposite to side b is 40 degrees and angle opposite to side a is 45 degrees.

Upon substituting these values in Law of Sines, we will get:

\frac{7}{\sin(45^{\circ})}=\frac{b}{\sin(40^{\circ})}

Therefore, our required equation would be \frac{7}{\sin(45^{\circ})}=\frac{b}{\sin(40^{\circ})}.

3 0
3 years ago
A basketball player makes 90% of her free throws. what is the probability she will miss for the first time on the seventh shot?
Kobotan [32]
52.17% is the probability she will miss for the first time.
4 0
3 years ago
Worksheet
Svetlanka [38]

Answer:

1a. 495 miles. 1b. 184.8 miles. 2a. 68 km. 2b. 32 kg

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please help! :))
denis23 [38]

Answer:

Check below

Step-by-step explanation:

Hi,

We're dealing with linear functions. f(x)=mx+b

We have here the first function.

g(x)=3x

That's a linear function, with slope, and no linear coefficient since

But on the other hand, the functions below, they all describe parallel lines, since their slope has the same value. I've changed the letters to make it easier the comprehension.

Even though each one has the same slope value, they have different non zero linear coefficients, {-6,-18,6,18}. Unlike, the first one

h(x)=3(9x-2) \rightarrow h(x)= 27x-6\\i(x)=9(3x-2)\rightarrow i(x)=27x-18\\j(x)=3(9x+2)\rightarrow j(x)=27x+6 \\k(x)=9(3x+2)\rightarrow k(x)=27x+18\\

A possible solution would be adjusting any of these, whose operation would result in g(x)=3x, but

Like

y=9(\frac{3x}{9}-2)+18 =3x

4 0
3 years ago
Solve by completing the square.
Leona [35]

Answer:

28- 4±\sqrt{21}

30- -4±2i

Hope this helps!

3 0
2 years ago
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