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steposvetlana [31]
3 years ago
7

What is the value for x?

Mathematics
1 answer:
shtirl [24]3 years ago
3 0

Answer:

x = 20

Step-by-step explanation:

The given angles are vertically opposite and congruent, hence

6x - 10 = 3x + 50 ( subtract 3x from both sides )

3x - 10 = 50 ( add 10 to both sides )

3x = 60 ( divide both sides by 3 )

x = 20


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Help meeeeeeeeeeeeeeee pleaseee!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
konstantin123 [22]

For the equation  F(x) = ax² + bx + c we have:

  • maximum value if a<0
  • minimum value if a>0

F(x) = -3x² + 18x + 3    ⇒  a = -3, b = 18

a < 0    ⇒   the function has a maximum value

Quadratic function has the maximum value (or minimum) at vertex of its parabola.

The maximum value is k at x=h where:  h=\dfrac{-b}{2a}  and  k = F(h)

h=\dfrac{-18}{2\cdot(-3)}=3\\\\F(3)=-3\cdot3^2+18\cdot3+3=-27+54+3=30

Therefore:

<h3> The function has a maximum value of 30 at x = 3</h3>

3 0
2 years ago
one tank is filling at a rate of 3/4 per gallon per 2/3 minute .a second tank is at a 5/8 gallon per 1 half gallon per 1/2 minut
Bingel [31]
recall\ that\implies \cfrac{\frac{a}{b}}{\frac{c}{{{ d}}}}\implies \cfrac{a}{b}\cdot \cfrac{{{ d}}}{c}\qquad thus&#10;\\ \quad \\&#10;&#10;\cfrac{\frac{3g}{4}}{\frac{2m}{3}}\implies \cfrac{3g}{4}\cdot \cfrac{3}{2m}\implies \cfrac{\square ?}{\square ?}&#10;\\-------------\\&#10;\cfrac{\frac{5g}{8}}{\frac{1m}{2}}\implies \cfrac{5g}{8}\cdot \cfrac{2}{1m}\implies \cfrac{\square ?}{\square ?}

so... you tells us, which filling rate is the bigger and thus faster one?

6 0
3 years ago
A bag contains 7 apples and 5 oranges. If you select 7 pieces of fruit without looking, how many ways can you get 7 apples?
Nataly_w [17]

Answer:

their is a 7/12 chance that u will get a apple out the bag

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
Each person in a group buys a movie ticket, a drink, and a popcorn. How much does the group pay when there are 6 people in the g
evablogger [386]

Answer: 81

Step-by-step explanation:
6.75 + 3 + 3.75 = X
X x 6 = 81


3 0
2 years ago
Read 2 more answers
If a polygon is rotated, which of the following characteristics of the polygon will always be the same? Select ALL that apply.
ASHA 777 [7]

Answer:

When we have a rotation about a given point, the distance between the rotated point and the axis of rotation will remain constant, the only thing that changes is the coordinates of the point.

This tell us that the main measures of any rotated shape will not change.

Then the side lengths will remain constant, this implies that the area also remains constant, and this also means that the angle measures should remain the same.

And because the perimeter is equal to the sum of all the side lengths, the perimeter also remains the same.

The only thing that changes will be the coordinates of our polygon.

4 0
3 years ago
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