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anastassius [24]
2 years ago
8

Give good evidence to back it up and i will give brainliest. thnx to whoever helps.

Mathematics
1 answer:
Anna007 [38]2 years ago
6 0

Answer:

Step-by-step explanation:

well, every hour she drives, she loses 2 gallons. so when she was 2 hours in, she was at 8 gallons, when she was 1 hour in, she was at 10 gallons, and when she started, she was at 12 gallons.

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Make this sentence into an equation 4 times the number which is v less that 2 is 11
zvonat [6]

4xV-2=11

(4 multiplied by the variable V subtracted by 2 equals 11).


Hope this helps, bud! :P

3 0
3 years ago
Read 2 more answers
I need answers to all? Please help!
Ber [7]

Answer:

do you still need help??

7 0
2 years ago
Two triangles can be formed with the given information. Use the Law of Sines to solve the triangles.
pentagon [3]
<h2>Hello!</h2>

The answer is:

The first triangle is:

A=59.6\°\\C=71.4\°\\c=17.6units

The second triangle is:

A=120.4\°\\C=10.6\°\\c=3.41units

<h2>Why?</h2>

To solve the triangles, we must remember the Law of Sines form.

Law of Sines can be expressed by the following relationship:

\frac{a}{Sin(A)}=\frac{b}{Sin(B)}=\frac{c}{Sin(C)}

Where,

a, b, and c are sides of the triangle

A, B, and C are angles of the triangle.

We are given,

B=49\°\\a=16\\b=14

So, solving the triangles, we have:

<h2>- First Triangle:</h2>

Finding A, we have:

\frac{a}{Sin(A)}=\frac{b}{Sin(B)}\\\\Sin(A)=a*\frac{Sin(B)}{b}=16*\frac{Sin(49\°)}{14}\\\\Sin^{-1}(Sin(A)=Sin^{-1}(16*\frac{Sin(49\°)}{14})\\\\A=59.6\°

Finding C, we have:

Now, if the sum of all the interior angles of a triangle is equal to 180°, we have:

A+B+C=180\°\\\\C=180-A-B\\\\C=180\°-59.6\°-49\°=71.4\°

Finding c, we have:

Then, now that we know C, we need to look for "c":

\frac{14}{Sin(49\°)}=\frac{c}{Sin(71.4\°)}\\\\c=\frac{14}{Sin(49\°)}*Sin(71.4\°)=17.58=17.6units

So, the first triangle is:

A=59.6\°\\C=71.4\°\\c=17.6units

<h2>- Second Triangle:</h2>

Finding A, we have:

\frac{a}{Sin(A)}=\frac{b}{Sin(B)}\\\\Sin(A)=a*\frac{Sin(B)}{b}=16*\frac{Sin(49\°)}{14}\\\\Sin^{-1}(Sin(A)=Sin^{-1}(16*\frac{Sin(49\°)}{14})\\\\A=59.6\°

Now, since that there are two triangles that can be formed, (angle and its suplementary angle) there are two possible values for A, and we have:

A=180\°-59.6\°=120.4\°

Finding C, we have:

Then, if the sum of all the interior angles of a triangle is equal to 180°, we have:

A+B+C=180\°\\\\C=180\°-A-B\\\\C=180\°-120.4\°-49\°=10.6\°

Then, now that we know C, we need to look for "c".

Finding c, we have:

\frac{14}{Sin(49\°)}=\frac{c}{Sin(10.6)}\\\\c=\frac{14}{Sin(49)\°}*Sin(10.6\°)=3.41units

so, The second triangle is:

A=120.4\°\\C=10.6\°\\c=3.41units

Have a nice day!

3 0
3 years ago
Consider the equation and the following ordered pairs: (−4,y) and (x,2).
True [87]

Answer:

(-4, 0) and (-3, 2)

Step-by-step explanation:

Substitute each value into the equation.

Since x = -4 in the first ordered pair, to find y, you just put it into the equation as x:

y = 2(-4) + 8

y = -8 + 8

y = 0

The first ordered pair is (-4, 0)

Now, do the same for the second ordered pair. Substitute 2 for the y and solve for x:

2 = 2x + 8

-6 = 2x

x = -3

The second ordered pair is (-3, 2)

I hope this helps!

3 0
3 years ago
(3x10)x8=___x(10x8) complete equation and tell which properties were used
Sindrei [870]
The completed and correct version of this equation would be (3x10)x8= 3x(10x8). The property that is used in this instance would be the associative property.
5 0
3 years ago
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