Please help my little brother!!!!

Answer:

1.cube

6faces

2.i can't understand it what is it but I think rectangle

3.i think it's pyramid if it is it has

5 faces

3. cone

1 face

The answer is 144 cm squared

225 - 81 = 144 (cm squared)

Answer:

Bike A

Step-by-step explanation:

For Bike A: (4/5)*1000=800m

For Bike B: (1/3)*1800=600m

800>600

Answer:

56

Step-by-step explanation:

Answer:

45.5

Step-by-step explanation:

5x7=35

3/2x3/2 = 4.5

7-3=4

4/2x3/2=6

35+4.5+6= 45.5

Answer:

c. Perpendicular lines

Step-by-step explanation:

Answer:

[tex] \displaystyle x = 3.97[/tex]

Step-by-step explanation:

we are given a exponential equation

[tex] \displaystyle {3}^{x} = 78[/tex]

we want to figure out x

remember that,

[tex] \displaystyle \log_{a}( {a}^{c} ) = c[/tex]

thus

take [tex]\log_3[/tex] both sides:

[tex] \displaystyle \log_{3}( {3}^{x} ) = \log_{3}(78) [/tex]

use the formula:

[tex] \displaystyle x = \log_{3}(78) [/tex]

by using calculator

[tex] \displaystyle x = 3.97[/tex]

Answer:

The height for the original part is  10 cm

Never mind that the solid is standing at the angle of 60 degrees.

If you cut the bottom of the solid at the angle of 30 degrees, and put that part on the top of the solid,  

the height is going to be exactly 10 cm.

So, we have...      V = (10 * 4 * 3) / 8  

                     or     V = 5 * 2 * 1.5  

Step-by-step explanation:

Answer:c

Step-by-step explanation:

Answer:

20000  m

Step-by-step explanation

multiplica el valor de longitud por 1000

Answer:

20000m

Step-by-step explanation:

1k = 1000

20k = 20*1000

= 20000

Answer:

like this?

Step-by-step explanation:

Answer:

45x³

Step-by-step explanation:

Given

3x × 15x²

= 3 × 15 × x × x²

= 45 × x³

= 45x³

Answer:

45x^3

Step-by-step explanation:

Multiply the digits that is 15 x 3

Then multiply the Variable x^2 and x

variables are added when multiplied keep this rule in mind always

Answer:

x will be equivalent to 24

Step-by-step explanation:

apply the multiplication rule to the exponents in (a^4)^6

4 times 6= 24, so (a^4)^6 is equivalent to a^24

Answer:

Obtuse, isosceles

Step-by-step explanation:

Classify. Two same length sides make it isosceles

A larger angle than 90° make it obtuse

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

5.71 that's it! no more I hope I helped in any thing

Answer:

(E) square

Step-by-step explanation:

because it's all side's are equal

A, B, C, D, E, F

A square is all of them :D

Answer:

you but question you don't understand and some one will help you with it can take a bit though

Step-by-step explanation:

Answer:

81

Step-by-step explanation:

Evaluating v • w

Recall: Given vectors a and B in Cartesian plane, x, y and z

vector a = [ax ay az] and b = [bx by bz]

The dot product is :

a•b = axbx + ayby + azbz

Using the relation above,

v • w = (5*9) + (-4*-2) + (4*7)

v • w = 45 + 8 + 28

v • w = 81

Hence, v • w = 81

Answer:

it's D) (412 mi) trust me

Step-by-step explanation

The actual distance if the map scale is 1 cm:8 mi is 412 meters.

We have given that,

On a map, the distance between Los Angeles, CA and San Francisco, CA is 51.5 cm.

We have to determine

The actual distance if the map scale is 1 cm:8 mi.

Distance is a numerical measurement of how far apart objects or points are. In physics or everyday usage, the distance may refer to a physical length or an estimation based on other criteria.

Therefore the total distance is 412 meters.

To learn more about the distance visit:

https://brainly.com/question/2854969

#SPJ2

Answer:

142

Step-by-step explanation:

Answer:

We need the figure

Explanation:

Can't describe a figure with no knowledge on what is it like.

Answer:

It has no rotational symmetry

Answer:

n<-27

Step-by-step explanation:

you have to get n by itself, to do this divide -3 from both sides of the equations.

-3n/-3<81/-3

n<-27

the answer is n<-27

Answer:

the value is 36

Step-by-step explanation: so you add

The value of q is 36 in the equation  q+9=45

Two or more expressions with an Equal sign is called as Equation.

The given equation is q+9=45

q plus nine equal to forty five

We have to find the value of q

Plus is the operator

q is the variable

Subtract 9 from both sides

q=45-9

q=36

Hence, the value of q is 36 in the equation  q+9=45

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ7

Find the value of q in equation q+9=45

Answer:

When you have different forms of equations you can then see equivalencies.  the different forms of equations can then be solved, each in its own manner.  meaning sometimes you can not solve one way because the equation is nested within another, a function in a function. F(x)=f(g(x))  Then you can work the problem around to different forms until you get your solution

Answer:

0.3594 = 35.94% probability that a truck will weigh less than 14.3 tons

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean is 15.8 tons, with a standard deviation of the sample of 4.2 tons.

This means that [tex]\mu = 15.8, \sigma = 4.2[/tex]

What is probability that a truck will weigh less than 14.3 tons?

This is the pvalue of Z when X = 14.3. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{14.3 - 15.8}{4.2}[/tex]

[tex]Z = -0.36[/tex]

[tex]Z = -0.36[/tex] has a pvalue of 0.3594

0.3594 = 35.94% probability that a truck will weigh less than 14.3 tons

Answer:

A

Step-by-step explanation:

Have a nice day :)

Answer:

point A

Step-by-step explanation:

counting m 4 steps down to A

Answer: -2 is the numerical opposite of the number 2. Any numbers opposite is it's negative form. (except for 0 due to there being no opposite for something that is not negative or positive.)

Answer:

ok so the numbers are 21%, 3/20, 25.6%, 2.24, and .24 we are ordering from least to greatest

Step-by-step explanation: First we need to figure out what 3/20 is and its 0.15 so 3/20 comes first then 0.24 then 2.24 then 21% then 25.6%

Answer:

82°

Step-by-step explanation: