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2 years ago

In quadrilateral ABCD what is m

Mathematics

1 answer:

sineoko [7]2 years ago

8 0

Answer:

B.99°

Step-by-step explanation:

105°+ 66°+90°+ angle c=360°

angle c= 360° - 261

=99°

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Help me................

Taya2010 [7]

Answer:

x = 5. y = 4

Step-by-step explanation:

7x - 4 = 31

7x = 35

x = 5

4y + 8 = 24

4y = 16

y = 4

4 0

3 years ago

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Please help me with #8

Julli [10]

I believe it would be 1 aka F

7 0

3 years ago

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Given the position of the particle, what the position(s) of the particle when it’s at rest

choli [55]

The position function of a particle is given by:

$X\mleft(t\mright)=\frac{2}{3}t^3-\frac{9}{2}t^2-18t$

The velocity function is the derivative of the position:

$\begin{gathered} V(t)=\frac{2}{3}(3t^2)-\frac{9}{2}(2t)-18 \\ \text{Simplifying:} \\ V(t)=2t^2-9t-18 \end{gathered}$

The particle will be at rest when the velocity is 0, thus we solve the equation:

$2t^2-9t-18=0$

The coefficients of this equation are: a = 2, b = -9, c = -18

Solve by using the formula:

$t=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}$

Substituting:

$\begin{gathered} t=\frac{9\pm\sqrt[]{81-4(2)(-18)}}{2(2)} \\ t=\frac{9\pm\sqrt[]{81+144}}{4} \\ t=\frac{9\pm\sqrt[]{225}}{4} \\ t=\frac{9\pm15}{4} \end{gathered}$

We have two possible answers:

$\begin{gathered} t=\frac{9+15}{4}=6 \\ t=\frac{9-15}{4}=-\frac{3}{2} \end{gathered}$

We only accept the positive answer because the time cannot be negative.

Now calculate the position for t = 6:

$undefined$

6 0

1 year ago

Self-fulfilling prophecy is a primary example of the capability of language to

UNO [17]

Letter A. Influence. Influence is a the primary example of he capability of language that is Self-fulling prophecy. It labels are attached to people and the words describe objects influence perception to them.

6 0

3 years ago

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An entrepreneur sold a damaged bedspread for $130.50, thereby making a loss of 13% on the cost price. Determine the cost price o

Anit [1.1K]

Answer:

$1003.84615

Step-by-step explanation:

130.5 = x * 0.13

130.5/0.13 = x

x = 1003.84615

4 0

3 years ago