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3 years ago

Pic need help plz !!!!

Mathematics

2 answers:

sweet [91]3 years ago

6 0

Answer:

Step-by-step explanation:

AAS is Angle Angle Side. Since one pair of sides and angles are already given, the only angles next to the given angles are the vertical angles.

liberstina [14]3 years ago

4 0

It is the first option. The two angles listed there are vertical angles. Therefore, they are equal to each other. And that would prove the triangles are congruent because of AAS

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7th grade math

maw [93]

Answer:

Can you please post a picture...it will help me understand it more!

Step-by-step explanation:

3 0

3 years ago

7 times as much as the sum of 1_3 and 1_4

kherson [118]

If your underscores are supposed to be spaces, the verbal expression translates to 7(13 + 14).

This becomes 7(27) = 189

7 0

3 years ago

a rectangle is constructed with its base on the x-axis and two of its vertices on the parabola y=121-x^2. what are the dimension

insens350 [35]

Answer:

the length is $\dfrac{22}{\sqrt{3}}$ and the width is $121-\left(\dfrac{11}{\sqrt{3}}\right)^2=121-\dfrac{121}{3}=\dfrac{242}{3}.$

Step-by-step explanation:

Let points A and B be placed on the x-axis. Their coordinates are $A(x_0,0)\ (x_0>0)$ and $B(-x_0,0)$ (because of parabola symmetry). Two other vertices lie on the parabola, then $C(-x_0,121-x_0^2)$ and $D(x_0,121-x_0^2).$ The length of the side AB is $2x_0$ and the length of the side AD is $121-x_0^2.$ Thus, the area of the rectangle ABCD is

$A=2x_0\cdot (121-x_0^2)=242x_0-2x_0^3.$

Find the derivative A':

$A'=242-2\cdot 3x_0^2=242-6x_0^2.$

Equate A' to 0:

$242-6x_0^2=0,\\ \\x_0^2=\dfrac{121}{3},\\ \\x_0=\dfrac{11}{\sqrt{3}}.$

The maximum area of the rectangle is

$A_{max}=242\cdot \dfrac{11}{\sqrt{3}}-2\cdot \left(\dfrac{11}{\sqrt{3}}\right)^3=\dfrac{2662}{\sqrt{3}}-\dfrac{2662}{3\sqrt{3}}=\dfrac{5324}{3\sqrt{3}}\ un^2.$

The dimensions of the rectangle are:

the length is $\dfrac{22}{\sqrt{3}}\ un.$ and the width is $121-\left(\dfrac{11}{\sqrt{3}}\right)^2=121-\dfrac{121}{3}=\dfrac{242}{3}\ un.$

6 0

4 years ago

Read 2 more answers

11) Is the following biconditional true? Explain. Two people are brother and sister if-and-only-if they are siblings.

Anna [14]

Answer:

Well, not exactly.

<h3>Step-by-step explanation: You see, there's this thing called half siblings. They aren't exactly quite any different to normal siblings, except the fact that they either have the same mother and different father, or the same father and different mother. This usually results after a mother and a father divorce, or their respected love one dies, and they have children. The mother/father then can remarry, and when their wife/husband also has a child. The two or more children become half siblings. Also, if we're gonna talk not literal siblings. Close friends often like to think of each other as siblings, though they aren't biologically siblings. Half siblings and step sisters are two different things, half is where your sibling shares half your genes, and step siblings are where they don't have any of your genes and only their respected parent's genes. Now depending on if they mean biologically siblings, I would say true. But if they count all, then it would be false.</h3>

5 0

4 years ago

After a 125% markup and a 10% discount, he the price of a watch is $30.78 before tax. What was the wholesale price?

pickupchik [31]

Fter a 125% markup and a 10% discount the price of a watch is 30.78 before tax what was the wholesale price - 2929721. ... If an item is $15.20 is increased by 125% (34.20) it would be about $34.20 before we subtract 10% (3.42)....we arrive at the end cost of $30.78. wholesale pricewould be 15.20.

4 0

3 years ago