1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ratling [72]
3 years ago
15

( please help me) ( 11 points)

Mathematics
1 answer:
lara [203]3 years ago
5 0

Answer:

500cm2

Step-by-step explanation:

2(9×20)+(7×20)

=360+140=500cm2

You might be interested in
Find the slope of each line and then determine if the lines are parallel, perpendicular or neither. If a value is not an integer
Aleonysh [2.5K]

As given by the question

There are given that the point of two-line

\begin{gathered} (1,\text{ 7) and (5, 5)} \\ (-1,\text{ -3) and (1, 1)} \end{gathered}

Now,

From the condition of a parallel and perpendicular line

If the slopes are equal then the lines are parallel

If the slopes are negative reciprocal then the lines are perpendicular

If the slopes are neither of the above are true then lines are neither

Then,

First, find the slope of both of line

So,

For first-line, from the formula of slope

\begin{gathered} m_1=\frac{y_2-y_1}{x_2-x_1} \\ m_1=\frac{5_{}-7_{}}{5_{}-1_{}} \\ m_1=-\frac{2}{4} \\ m_1=-\frac{1}{2} \end{gathered}

Now,

For second-line,

\begin{gathered} m_1=\frac{y_2-y_1}{x_2-x_1} \\ m_1=\frac{1_{}-(-3)_{}}{1-(-1)_{}} \\ m_1=\frac{4}{2} \\ m_1=2 \end{gathered}

The given result of the slope is negative reciprocal because

\begin{gathered} -\frac{1}{2}=-(-\frac{2}{1}) \\ -\frac{1}{2}=2 \end{gathered}

Hence, the slope of line1 is -1/2, and slope of line2 is 2 and the lines are perpendicular.

5 0
1 year ago
Plz help with math u will get Brainliest
emmasim [6.3K]

Answer:

Volume = 315 cm³

Step-by-step explanation:

Volume = Length × Width × Height

→ Substitute in the values

Volume = 6 cm × 3.5 cm × 15 cm

→ Simplify

Volume = 315 cm³

4 0
3 years ago
5a - 5b is it monomial binomial trinomial
svetoff [14.1K]

Binomial

A monomial is just one term. A binomial is two monomials added or subtracted together. A trinomial is three monomials added or subtracted together.

5 0
3 years ago
Read 2 more answers
A town council has 13 ​members, 7 Democrats and 6 Republicans.
bezimeni [28]

Answer:

Membership selection a town council has members Democrats and Republicans if the president and vice president are selected at random what is the probability that they are both Democrats

There is a 26.9% chance, if the president and vice-president are selected at random, that they are both Democrats. There is a 12.2% chance, if a 3-person committee is selected at random, that Republicans make up the majority.

Step-by-step explanation:

7 0
3 years ago
Methods for graphing lunear equations
Flura [38]

Answer:

Step-by-step explanation:

The first method is by plotting points and then dreaming a line through the points. The second is by using the y intercept and slope the third is applying transformation to the identity function. F(x)=x(x)=x

6 0
3 years ago
Other questions:
  • There are fewer than 8 gallons of gas in the tank how do I write an inequality for that
    6·1 answer
  • She has 18 feet cable. She cuts off 12 feet 9 inches of the cable. How many inches of the cable does she have left
    10·1 answer
  • 1
    8·1 answer
  • A car is driving at 40 kilometers per hour. How far, in meters, does it travel in 2 seconds?
    11·2 answers
  • What is the working for -(-6)
    5·1 answer
  • Is this a positive slope or a negative slope????
    7·2 answers
  • Write 0.45 as a fraction in simplest form.
    5·2 answers
  • Find the exact length of the third side .
    14·1 answer
  • Write each of these as an integer or fraction. <br> a. 2 x 2³<br> b. (-2.5)²
    10·1 answer
  • 3x10^-2 divided by 8x10^-1
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!