Help math math ASAP help

Answer:

9.6 cm

Step-by-step explanation:

Since the shapes are similar, we can write a proportion. Let x be the length of MN.

9/12 = 7.2/x Write a proportion.

9x = 12(7.2) Use cross products.

9x = 86.4 Multiply.

x = 9.6 Divide both sides by 9.

Side MN is 9.6 cm.

Answer:

C

Step-by-step explanation:

I am so smart yay duh

Answer:

It's C because 17 is way closer to 20

Step-by-step explanation:

Answer:

Second option from the top

Step-by-step explanation:

        First, let us simplify x + 2 < -3

x + 2 < -3

x + 2 - 2 < -3 - 2

x < -5

        Now we can more clearly see which graph is correct.

   -> Since we are using < / > and not ≤ / ≥ the dot will be opened and not closed. This rules out the first and third options.

   -> Next, we need the direction of the line. Since < is facing to the left, our line will also be going to the left.

   -> To satisfy all requirements, since all graphs start at -5 already, the correct answer is the second option from the top.

Answer:

it's the second one

Step-by-step explanation:

it's all just common knowledge

the sign is a less than sign so the sign is an open dot. That eliminated two options. And whatever way the less than sign is pointing is the way the arrow goes

14

Step-by-step explanation:

b×h×1/2

=7×4×1/2

=14

Answer:

Step-by-step explanation:

Answer:

4

Hope this helps ;)

Step-by-step explanation:

(12-8)x 3 - 2 x 7 = -2

√6 ≈ 2.44949

-2 + 2.44949

= 4

Answer:

21 feet

Step-by-step explanation:

12^2+x^2=20^2(Pythagorean theorem)

144+x^2=400

x^2=400-144

x^2=256

x=sqrt 256

x=16

y^2+12^2=13^2(Pythagorean theorem)

y^2+144=169

y^2=169-144

y^2=25

y=sqrt 25

y=5

distance between A and B=16+5

=21 feet

Factorisation:

[tex]\rightarrow \sf 20mn-15m[/tex]

take 5m as common term

[tex]\rightarrow \sf 5m\left(4n-3\right)[/tex]

solving/simplifying:

[tex]\rightarrow \sf \left(\dfrac{5}{6}z\:+\:5\right)+\left(-\dfrac{1}{3}z-4\right)[/tex]

[tex]\rightarrow \sf \dfrac{5}{6}z+5-\dfrac{1}{3}z-4[/tex]

[tex]\rightarrow \sf \dfrac{5}{6}z-\dfrac{1}{3}z+5-4[/tex]

[tex]\rightarrow \sf \dfrac{5}{6}z-\dfrac{1(2)}{6}z+1[/tex]

[tex]\rightarrow \sf \dfrac{5-2}{6}z+1[/tex]

[tex]\rightarrow \sf \dfrac{3}{6}z+1[/tex]

[tex]\rightarrow \sf \dfrac{1}{2}z+1[/tex]

Answer:

[tex]5m(4n - 3)[/tex]

[tex]\dfrac12z+1[/tex]

Step-by-step explanation:

Given expression:

[tex]20mn-15m[/tex]

Rewrite 20 as [tex]4\cdot 5[/tex]

Rewrite 15 at [tex]3 \cdot 5[/tex]

Therefore,

[tex]20mn-15m=4\cdot 5m\cdot n-3 \cdot 5m[/tex]

Factor out common term [tex]5m[/tex] :

[tex]\implie 5m(4n-3)[/tex]

-------------------------------------------------------------------------------------

Given expression:

[tex]\left(\dfrac56z + 5\right)+\left(-\dfrac13z-4\right)[/tex]

Simplify:

[tex]\dfrac56z+5-\dfrac13z-4[/tex]

Group like terms:

[tex]\dfrac56z-\dfrac13z+5-4[/tex]

Combine like terms:

[tex]\dfrac12z+1[/tex]

Veremos que el otro lado  del triangulo debe medir 20 metros.

Sabemos que para un triangulo rectangulo de catetos P y K, el area es:

A = P*K/2

En este caso, sabemos que el menor de los catetos mide 5 metros, entonces tenemos:

P = 5m

Y tambien sabemos que el area es de 50m^2, reemplazando eso en la ecuación de arriba obtenemos:

50m^2 = 5m*K/2

Ahora podemos resolver esto para K

(50m^2)/5m = K/2

10m = K/2

2*10m = K = 20m

El otro lado debe medir 20 metros.

Si quieres aprender m'as sobre triangulos, puedes leer:

https://brainly.com/question/25839532

Answer:

Step-by-step explanation:

Given the following 3 points:

x      y

-56   66

-42   58

-28    50

Check the slope of two line segments between the three points:

(58 - 66)/(-42 - (-56))

= -8/14

= -4/7

(50 - 58)/(-28 -(-42))

= -8/14

= -4/7

As the slopes are the same, the 3 points are on a straight line with slope of - 4/7:

y = -4x/7  + C

Substitute x = -28 , y = 50 into the equation

50 = -4(-28)/7  +  C

50 = 16 + C

C = 34

y = -4x/7  + 34

Y-intercept at x = 0:

= 34

Answer : Volume  = 4/3πrcubed = 4/3.π.4.3cubed≈333.03814cm(cubed)

Hope that helps

Step-by-step explanation:

Answer:

y=-5x+35

Step-by-step explanation:

Use the formula y = mx + b

m = slope, so plug in -5 as the slope

To find x-intercept we set y=0

We want the x-intercept to be 7 so we can plug that into the equation too

0=-5(7)+b

Lastly solve for b and you get your answer

Which is y=-5x-35 :) hope this helps

Answer:

$40.80

Step-by-step explanation:

First, convert the 20% to an actual number that can be used in a calculation. For percent, this is always done by simply dividing the percent, in this case, 20%, by 100%. So, the conversational term "20%" becomes 20% / 100% = 0.20 in terms of a real mathematical number.

Second, you need to find out what 20% of your $34.00 meal cost is. This is always done by multiplying 0.20 by $34.00, or 0.20 x $34.00=$6.80. So, the amount of tip you are going to leave is $6.80.

This makes the total cost of your meal (to write on your charge slip or other payment)

$34.00 + $6.80 = $40.80.

Answer:

$40.80

Step-by-step explanation:

If you pay for the original cost of the dinner AND leave a 20% tip then the total amount paid will be 120% of the original cost (100% + 20% = 120%).

Convert 120% into a decimal:  120% = 120/100 = 1.2

So 120% of $34.00 = 1.2 × 34 = $40.80

The population in the study are the people that are 71 years of age and older in the United States.

Population simply means the representative sample of a larger group. Here, the population in the study are the people that are 71 years of age and older.

Also, 0.097 is a statistic because it describes the proportion of the people that suffer from the disease for the sample of 856.

The technical conditions are that the sample should be collected from a normal distribution. In this case, since the sample size is large, then the sampling distribution of the sample means is normal.

Learn more about population on:

https://brainly.com/question/25630111

Answer: A

Step-by-step explanation:

Answer:

the answer is truly 28 person above is correct

411.84 million acres

Hi there !

100% - 89% = 11% (not federally owned)

3744 m ............ 100%

x m........................11%

x = 11×3744/100

= 41184/100

= 411.84 million acres are not federally owned

Good luck !

Explanation:

Imagine you randomly selected n items to form a sample, and you did this 100 times. Each time doing a trial like this, we generate a confidence interval. We expect about 99 of those times to have a confidence interval containing the true value of μ. This is what it means when we say "We are 99% confident that the interval from 4.1 to 5.6 actually does contain the true value of μ."

The value of 8 in 5.18 is 0.08.

The value of the 8 in 5.81 is 0.8.

Place value is the basis of our entire number system. This is the system in which the position of a digit in a number determines its value.

The number 42,316 is different from 61,432 because the digits are in different positions.

here, we have,

from the above we got idea about place value.

hence,

The value of 8 in 5.18 is. 0.08

the value of 8 in 5.81 is 0.8

To learn more on place value click:

https://brainly.com/question/27734142

#SPJ2

Answer:

y=0.25x-11

Step-by-step explanation:

y=mx+b where m=slope and b=y-intercept.

Answer:

Your answer is D.Divide

Step-by-step explanation:

Please mark as brainliest

Hope you have a great day!

Answer:A footing is the final balance when adding all of the debits and all of the credits in accounting. The debits are tallied, followed by the credits, and the two are netted to compute the account balance. Footings are commonly used in accounting to determine final balances to be put on the financial statements.

Step-by-step explanation:The debits are tallied, followed by the credits, and the two are netted to compute the account balance. Footings are commonly used in accounting to determine final balances to be put on the financial statements.

Answer:

B. 5^2 = 5 * 5

and

E. 7 * 7 * 7 * 7 * 7 * 7 = 7^6

Step-by-step explanation:

Answer:

4 tables

Step-by-step explanation:

6 kids would sit at 3 tables and 4 kids will sit at one

Answer:

They will need 4 Tables.

Step-by-step explanation: we need to take the number of students and divide it by how many students can sit at a table. Since 20/6 is 3 and one third, we round up to make sure that every student can sit leaving us with 4 as the answer.

Answer:

30/29

Step-by-step explanation:

5 feet is 5*12 = 60 inches

Fraction is (60 in)/(58 in)

(60 in)/(58 in) = 30/29

Answer:

• 06/21/17

What is the minimum force required to prevent a ball weighing 22.6 lb from rolling down a ramp which is inclined 39.0 degrees with the horizontal

I need help

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Step-by-step explanation:

Answer:

472.222222222

Step-by-step explanation:

Step-by-step explanation:

For the what value of C is the function f(x) = when?

c. x= -2

3. x= 1

x^2 -4 /(x+2)(x-3) otherwise

continuous at x= -2 ?