All categories

3 years ago

Help i need help please

Mathematics

2 answers:

Bess [88]3 years ago

5 0

Answer:

a 18

b 18

c 9

Step-by-step explanation:

6 g^4 h^3 * g^10 h^5 * 3 g^4 h

We know that a^b*a^c = a^(b+c)

So rewriting

6 g^4 h^3 * g^10 h^5 * 3 g^4 h^1

6*3 g^(4+10+4) h^(3+5+1)

18 g^18 h^9

Molodets [167]3 years ago

3 0

The coefficient would be 18. The exponent for g would be 18. The exponent for h would be 9.

Add the exponents of the same variable and multiply the coefficents.

You might be interested in

A stone is thrown upward, its height h meters after t seconds is given by this formular h=30t-5t². Find t when it is at a height

Simora [160]

Answer:

the answer is

T¹=5s

T²=1s

Am not sure about why there's two times , although perhaps the two times indicate the starting time and the other indicate the time when the stone hits 25m above the ground

Step-by-step explanation:

the solving steps are in the picture.

8 0

3 years ago

In order to estimate the typical amount of TV watched per day by students at her school of 932 students, a student has all of th

Irina18 [472]

Answer:

1) Quantitative

2) a) Mean or Median

3) b) Bar graph

Step-by-step explanation:

The question is incomplete:

"In order to estimate the typical amount of TV watched per day by students at her school of 932 students, a student has all of the students in her statistics class (30 students) take a short survey, finding that, on average, students in her statistics class report watching 1.2 hours of television per day.

1 - Is the varlable categorical or quantitative?

2 - Identlfy two statistics that the student could use to summarize the variable.

a) Mean or Median b) Mean or Proportions c) Mean or Mode d) Median or Mode.

3 - Identify one graph that the student could use to summarize the variable.

a) Line graph b) Bar graph c) Dotplot d) Pie chart e) Scatter Plot

1) The variable is quantitative as it is a number and we can perform meaningful numerical operations with it.

2) The mean is the most appropiate statistic to summarize the variable.

Proportions is not adequate.

Mode is not appropiate as we are probably dealing with a continous variable.

The second most appropiate is the median, as it is appropiate for continous values for the variable.

3) If he classifies the result in classes, he can chart the results in a bar graph.

6 0

3 years ago

Hello, help plz :) :) :)

NeTakaya

Answer:

Step-by-step explanation:

z = 9, so we plug in 9 for z.

9 * 3 = 27

6 0

3 years ago

Read 2 more answers

Figure ABC is reflected about the x-axis to obtain figure A’B’C’:

MArishka [77]

Answer:

D. Figure ABC is congruent to figure A’B’C’.

Step-by-step explanation:

Any figure transformed by a rigid transformation (rotation, reflection, translation) is congruent to the original.

3 0

3 years ago

PLEASE HELP A QUESTION OF LIFE OR DEATH!!!!!!!

Ira Lisetskai [31]

Answer: The length of the third straw is 29 centimeters.

Step-by-step explanation: Given that Anja is creating a triangle using three straws and the lengths of two shorter straws are 20 cm and 21 cm.

We are to find the length of the third straw in centimeters so that Anja will create a right triangle.

The two shorter straws will make the legs of the right-angled triangle because they are shorter.

Since the third straw will be the largest, so it will make the HYPOTENUSE of the triangle.

In a right-angled triangle, we have

Hypotenuse² = length of one leg² + length of the other leg².

Therefore, we get

$Hypotenuse^2=20^2+21^2=400+441=841\\\\\Rightarrow Hypotenuse=29.$

Thus, the length of the third straw is 29 centimeters.

8 0

3 years ago

Read 2 more answers