Can some one help me? 20 points

Answer:

The answer is c

Step-by-step explanation:

The missing term is YZ/BC = 6/3.

The correct option is A.

Those triangles look the same but are different in size.

And in similar triangles,

the corresponding sides are in proportion to each other and the corresponding angles are equal to each other.

Given:

The triangles ABC and XYZ are similar triangles by the SSS criterion.

And AB/XY = 4/2

AC/XZ = √52/√13

The missing ratio is YZ/BC = 6/3

It will complete the SSS criterion.

Therefore, YZ/BC = 6/3 is the missing term.

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Answer:

8,25

Step-by-step explanation:

Answer: C and the last choice.

Hope that helped! :)

Step-by-step explanation:

A- is not the answer because that is the formula for triangles.

B-Is not the answer because it's the formula for area

C-Is the formula for Volume so that an answer

D- Is the wrong answer when you solve the answer

E-Is the other answer because it is correct

Answer:

Step-by-step explanation:

how the prices at Payless compared to the prices

at Famous Footwear. At each store, they randomly

selected 30 pairs of shoes and recorded the price of

each pair. The table shows summary statistics for

the two samples of shoes.28

Store

Mean

SD

Famous Footwear

$45.66

$16.54

Payless

$21.39 $7.47

Do these data provide convincing evidence at the

0.05 significance level that shoes cost less

, on

average, at Payless than at Famous Footwear?

a =

Answer:

the answer is 62.8cm^2

Step-by-step explanation:

4•3.14•5

By using the formula for the surface area of the sphere [tex]S.A = 4 \pi r^2[/tex], the surface area of this sphere would be, [tex]S.A = 314[/tex] cm²

Used the formula of the surface area of the sphere,

[tex]S.A = 4 \pi r^2[/tex]

Where 'r' is the radius of the sphere.

Given that,

Diameter of a sphere = 10 cm

We know that the radius of the sphere is half of the diameter of the sphere.

Hence, the radius of the sphere is,

[tex]r = \dfrac{10}{2}[/tex]

[tex]r = 5[/tex] cm

Substitute r = 5 cm in the above formula,

[tex]S.A = 4 \pi r^2[/tex]

[tex]S.A = 4 \times 3.14 \times 5^2[/tex]

Therefore, the surface area of a sphere is,

[tex]S.A = 314[/tex] cm²

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Answer: 2x^2+4x/3x-3

Step-by-step explanation: basically simplify the original expression : got it right on the quiz

Answer:

9/10.

Step-by-step explanation:

To determine what expression means the same as 9 divided by 10, the following logical reasoning must be carried out:

Since 9 integers are distributed among 10 dividends, this implies that these 10 will obtain a portion of those 9 integers, that is: 9/10, which gives a total of 0.90.

Answer:

The slope of the line that is perpendicular is 3/8

Step-by-step explanation:

The slope of the line through

(-6,4) (10,-2)

m = ( y2-y1)/(x2-x1)

    = ( 10 - -6)/( -2 -4)

    = (10+6)/(-2-4)

     = 16/-6

    =-8/3

A line perpendicular has a slope that is the negative reciprocal

- 1/( -8/3)

+ 3/8

The slope of the line that is perpendicular is 3/8

The surface area for a pyramid that is: Base 8 and height 6

Would be: 42.87

Answer:

B. The sample selected from one of the populations has no effect or bearing on the sample selected from the other population.

Step-by-step explanation:

In statistical analysis, the use of independent samples for diverse studies is common.

Independent samples are such that the sample selected from one of the populations has no effect or bearing on the sample selected from the other population.

This means that samples are selected randomly in such a way that an observation obtained from a sample does not depend on the values obtained from the observation of another sample from the other population.

Answer:

a) x=8, b) Option B 36°

Step-by-step explanation:

a) Recall that a straight angle is measured 180°, therefore ∠RPS and ∠QPR are supplementary to each other since they'll add up to 180°, therefore:

m∠RPS + m∠QPR = m∠QPS = 180°

(3x + 12)° + (7x + 88)° = 180°

10x + 100 = 180

10x = 80

x = 8

b) Plug in x=8 into m∠RPS and evaluate:

m∠RPS = (3x + 12)°

m∠RPS = (3(8) + 12)°

m∠RPS = (24 + 12)°

m∠RPS = 36°

Answer:

100

Step-by-step explanation:

Answer:

D) 13 1/8

Step-by-step explanation:

105/8=13 1/8 cups

Hope this helped! :)

Answer:

V=12m

Step-by-step explanation:

V=l×w×h​

V=3×4×1

V=12m

Answer:

4m*3m*3m - 2m*2m*2m

Step-by-step explanation:

9514 1404 393

Answer:

  x = 2/3

Step-by-step explanation:

The approach usually recommended for almost any problem involving fractions is to "clear fractions" first. Here, that means multiplying both sides of the equation by 2x (the least common denominator). After that, divide both sides by the coefficient of x.

  [tex]\dfrac{2}{x}=\dfrac{6}{2}\qquad\text{given}\\\\\dfrac{(2x)(2)}{x}=\dfrac{(2x)(6)}{2}\qquad\text{multiply by $2x$}\\\\4=6x\qquad\text{simplify}\\\\\dfrac{4}{6}=x\qquad\text{divide by 6}\\\\\boxed{x=\dfrac{2}{3}}\qquad\text{reduce the fraction}[/tex]

__

After you have done this a few times, you recognize that the process involves multiplying the original equation by 2x/6 = x/3. This is x times the reciprocal of the constant term on the right. You can "cut to the chase" and do multiplication of both sides by x/3 as your first step:

  [tex]\dfrac{2}{x}\cdot\dfrac{x}{3}=\dfrac{6}{2}\cdot\dfrac{x}{3}\qquad\text{multiply the given equation by $\dfrac{x}{3}$}\\\\\dfrac{2}{3}=x\qquad\text{simplify}[/tex]

Answer:

Given. 2. A bisector cuts a segment into 2. ≅ parts. 3. Intersecting lines form vertical ∠. 4. ... 3. ∠ABC = ∠ADC Angle. 4. ∆ABC ≅ ∆ADC. Reasons. 1. Given. 2. Given ... AE ≅ DF. AB ≅ CD. Prove: EC ≅ FB. Statement. 1. ∠A and ∠D are a rt ∠ ... CD bisects ∠BCA ... ∠ECA ≅ ½∠BAC and ... Given: CEA ≅ CDB, ∆ABC.

Step-by-step explanation:

Answer:

[tex]57\frac{3}{11}[/tex] = c

or

[tex]57.\overline{27}[/tex] = c

Step-by-step explanation:

We know that the diameter of a circle multiplied by [tex]\pi[/tex] is the circumference, so we can create this equation:

180 = c * [tex]\pi[/tex]

Your teacher told us to assume [tex]\pi[/tex] is 22/7, so we'll put that in

180 = c * [tex]\frac{22}{7\\}[/tex]

To get c by itself, we divide both sides by 22/7

[tex]\frac{180}{\frac{22}{7}}[/tex] = c

Dividing by a number is the same as multiplying by its reciprocal, so we'll multiply 180 by 7/22

180 * [tex]\frac{7}{22}[/tex] = c

Evaluate

[tex]\frac{1260}{22}[/tex] = c

[tex]57\frac{3}{11}[/tex] = c

If you want a decimal instead:

[tex]57.\overline{27}[/tex] = c

Answer:

I'm pretty sure it's C.

Step-by-step explanation:

Step-by-step explanation:

Diameter=10cm

Radius=Diameter/2=10/2=5cm

Now

[tex]\boxed{\sf Volume\:of\: Sphere=\dfrac{4}{3}\pi r^3} [/tex]

[tex]\begin{gathered}\\ \tt{:}\leadsto Volume_{(Sphere)}=\dfrac{4}{3}\times \dfrac{22}{7}\times 5^3\end{gathered}[/tex]

[tex]\begin{gathered}\\ \tt{:}\leadsto Volume_{(Sphere)}=\dfrac{88}{21}\times 125\end{gathered} [/tex]

[tex]\begin{gathered}\\ \tt{:}\leadsto Volume_{(Sphere)}=\dfrac{11000}{21}\end{gathered} [/tex]

[tex]\begin{gathered}\\ \tt{:}\leadsto Volume_{(Sphere)}=523.8\end{gathered} [/tex]

[tex]\begin{gathered}\\ \tt{:}\leadsto Volume_{(Sphere)}=524units^3(Approx)\end{gathered} [/tex]

Volume of the sphere is 524 [tex]cm^{3}[/tex]

"Volume is the total amount of space occupied by any three dimensional object."

" A sphere is three dimensional shape which is equidistant from its center."

Formula used to calculate Volume of a sphere

Volume of a sphere = [tex]\frac{4}{3} \pi r^{3}[/tex]

According to question,

Diameter = 10cm

Radius = [tex]\frac{Diameter}{2}[/tex]

           = [tex]\frac{10}{2}[/tex]

           = 5cm

Volume of a sphere = [tex]\frac{4}{3}[/tex] ×[tex]\pi[/tex]×[tex]5^{3}[/tex]

                                 = [tex]\frac{4}{3}[/tex] ×[tex]\frac{22}{7}[/tex] × [tex]5[/tex] × [tex]5[/tex] × [tex]5[/tex]

                                 = 523.8

                                 = 524 [tex]cm^{3}[/tex] (round to the nearest tenth)

Hence Volume of a sphere is 524 [tex]cm^{3}[/tex].

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Answer:

the answer is 55% are satisfied with the car

Answer:

a) t = 2.2010

b) t = 1.7291

c) t = 3.4995.

Step-by-step explanation:

a. The sample size is 12 and the level of confidence is 95%.

12 - 1 = 11 degrees of freedom, either two-tailed test at [tex]\alpha = 0.975[/tex] or one-tailed test at [tex]\alpha = 0.95[/tex], so t = 2.2010.

b. The sample size is 20 and the level of confidence is 90%.

20 - 1 = 19 degrees of freedom, either two-tailed test at [tex]\alpha = 0.95[/tex] or one-tailed test at [tex]\alpha = 0.9[/tex], so t = 1.7291.

c. The sample size is 8 and the level of confidence is 99%.

8 - 1 = 7 degrees of freedom, either two-tailed test at [tex]\alpha = 0.995[/tex] or one-tailed test at [tex]\alpha = 0.99[/tex], so t = 3.4995.

Answer:

[tex]3(3 - 4x + 2y)[/tex]

Step-by-step explanation:

Find the Greatest Common Factor (GCF).

[tex]gcf = 3[/tex]

Factor out the GCF.

[tex]3( \frac{9}{3} + \frac{ - 12x}{3} + \frac{6y}{3} )[/tex]

Simplify each term in parentheses.

[tex]3(3 - 4x + 2y)[/tex]

Answer:

The answer is 0.25

Step-by-step explanation:

Answer:

I would go with third one down     3 1/2

Step-by-step explanation:

2 1/3 × 1 1/2

7/3 × 3/2   =  (7×3)/(3×2)

                 = 21/6

                 = 3 3/6

                 = 3 1/2