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2 years ago

Please help, i would really appreciate your help

Mathematics

1 answer:

otez555 [7]2 years ago

6 0

Answer:

x = 7

Step-by-step explanation:

Since the lines are parallel, we know that the two angles are equal. So you can write (7x - 4) = (5x + 10). Then you just solve for x.

7x - 4 = 5x + 10

add 4 from both sides to get

7x = 5x + 14

subtract 5x from both sides to get

2x = 14

divide both sides by 2 to get

x = 7

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The ratio of Dobermans to terriers is 2:7. There are 774 dogs altogether.

kaheart [24]

Answer:

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Step-by-step explanation:

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3 years ago

I have no idea how to do this please helo

sesenic [268]

Step-by-step explanation:

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3 0

2 years ago

Read 2 more answers

Solve the following system of equations. (Hint: Use the quadratic formula.) f(x) = 2x² 3x g(x)=-3x² + 20 (0.-10) and (1, 17) (-2

jasenka [17]

The solution of the system of equation is the intersection point of the two quadratic equations, so we need to equate both equations, that is,

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So, by moving the term -3x^3+20 to the left hand side, we have

$5x^2-3x-30=0$

Then, in order to solve this equation, we can apply the quadratic formula

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

In our case, a=5, b=-3 and c=-30. So we get

$x=\frac{3\pm\sqrt{(-3)^2-4(5)(-30)}}{2(5)}$

which gives

$\begin{gathered} x=2.76779 \\ and \\ x=-2.16779 \end{gathered}$

By substituting these points into one of the functions, we have

$f(2.76779)=-2.982$

and

$f(-2.16779)=5.902$

Then, by rounding these numbers to the nearest tenth, we have the following points:

$\begin{gathered} (2.8,-3.0) \\ and \\ (-2.2,5.9) \end{gathered}$

Therefore, the answer is the last option

4 0

1 year ago

Any helpppppp?????? Need help asap

Artemon [7]

Answer:

3. D

4. A

5. C

6. A

hopefullt this helps!

if its incorect im sorry i tried

3 0

2 years ago

Andrea received a $40 gift card to use at a town for a cost her eight dollars per visit to swim a function relating the value of

BigorU [14]

Answer:

n = v/8 = 40/8 = 5

Step-by-step explanation:

5 0

3 years ago