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3 years ago

PLZ HELP !! IS IT ABC OR D ??!

Mathematics

1 answer:

dusya [7]3 years ago

6 0

Answer:

Step-by-step explanation:

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Find the length of CB.<br> 5x – 3<br> 3x + 1

SSSSS [86.1K]

Assumed that sides are equal

5x-3=3x+1
5x-3x=1+3
2x=4
x=2

5(2)-3
7

4 0

2 years ago

GREYUIT [131]

Answer:

$175\ in^{2}$

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z----> the scale factor

x----> volume of the larger solid

y----> volume of the smaller solid

$z^{3}=\frac{x}{y}$

we have

$x=125\ in^{3}$

$y=27\ in^{3}$

substitute

$z^{3}=\frac{125}{27}$

$z=\frac{5}{3}$

step 2

Find the surface area of the larger solid

we know that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

Let

z----> the scale factor

x----> surface area of the larger solid

y----> surface area of the smaller solid

$z^{2}=\frac{x}{y}$

we have

$z=\frac{5}{3}$

$y=63\ in^{2}$

substitute

$(\frac{5}{3})^{2}=\frac{x}{63}$

$x=\frac{25}{9}*63=175\ in^{2}$

3 0

4 years ago

At a wedding reception, there will be 1,012 guests. A round table will seat 12 guests. How many round tables will be needed?

Whitepunk [10]

Answer:

85 tables

Step-by-step explanation:

1012 divided by 12 is 84 and 1/3. We want to have room for everyone, so we round up to 85.

3 0

3 years ago

Law of sines: How many distinct triangles can be formed for which m∠A = 75°, a = 2, and b = 3? No triangles can be formed. One t

Vinvika [58]

We have been given angle A as 75 degrees and sides a = 2 and b = 3.

Using Sine rule, we can set up:

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

Upon substituting the given values of angle A, and sides a and b, we get:

$\frac{Sin(75)}{2}=\frac{Sin(B)}{3}$

Upon solving this equation for B, we get:

$\Rightarrow 3Sin(75)=2Sin(B)\\ \Rightarrow Sin(B)=\frac{3Sin(75)}{2}\\ \Rightarrow Sin(B)=1.4488\\$

Since we know that value of Sine cannot be more than 1. Hence there are no values possible for B.

Hence, the triangle is not possible. Therefore, first choice is correct.

7 0

3 years ago

Read 2 more answers

Pablo purchased adult and touth tickets for rhe footall game. He brought x adults tickets for $74 each and y youth tickets for $

Rus_ich [418]

The equation will be made up of the cost of x number of adult tickets at 74 each which is represented by 74x and youth tickets (an unknown number y) at 35 each which is represented by 35y. We add them together and set them equal to Cost. Cost = 74x + 35y

4 0

3 years ago