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
Volgvan
2 years ago
12

PLEASE ANSWER WILL MARK BRAINLIEST!!

Mathematics
1 answer:
const2013 [10]2 years ago
8 0
Answer: AB = 30cm, BD = 16cm, CD = 30 cm, AC = 16 cm

Diagram should be the same thing, except doubled the size of the original.

Explanation: Just multiply each side by the scale factor.

You might be interested in
Graph the function.
RideAnS [48]

Answer:

\displaystyle{y=-3x-1}

Step-by-step explanation:

I have two methods: <u>standard-learning</u> which will explain overall mathematically - basically formula, etc. - while the other one <u>trick-tips</u> method will rely on choices rather mathematical calculations but with explanation on <em>why</em> and <em>how.</em>

<h3>Standard-Learning</h3>

First, let’s pick two points that are integers since they are easily to be found via graphs. We see that (-1,2) and (0,-1) is a part of the graph so now we finally have picked two points for our calculations.

When we have finally picked two points, we will be using them for <u>slope calculation</u>. This part is <u>crucial</u> for finding an equation of a line because a line has to contain slope in its equation.

To calculate the slope, we use rise over run formula which is:

\displaystyle{\dfrac{\Delta y}{\Delta x} = \dfrac{y_2-y_1}{x_2-x_1}}

Note that \displaystyle{\Delta} is delta - in both mathematic and physics, it means <u>changes in</u>.

So, we will be using those two points that we have picked to substitute in the slope formula. Let’s determine that \displaystyle{(x_2,y_2)=(-1,2)} and \displaystyle{(x_1,y_1)=(0,-1)}.

Therefore, our slope will be:

\displaystyle{m=\dfrac{2-(-1)}{-1-0}}\\\\\displaystyle{m=\dfrac{2+1}{-1}}\\\\\displaystyle{m=-3}

Next, find the y-intercept. From the graph, we see that the graph intercepts at (0,-1) which is y-intercept so we will only use y-value. Hence, b = -1.

From the slope-intercept form:

\displaystyle{y=mx+b}

Substitute m (slope) = -3 and b (y-intercept) = -1. Hence, the equation of line is:

\displaystyle{y=-3x-1}

<h3>Fast Way (Trick-Tips)</h3>

Relying on choices and knowledge of graph, notice that there are slopes of 3 and -3.

Keep in mind that if slope is negative, it will decrease down and if slope is positive, it will increase up.

Therefore, cut off all choices with positive slopes which are 1 and 3. We are now left with 2 and 4.

Next, look at the graph and tell its y-intercept. It intercepts y at y = -1 so we take value of -1.

So choice 4 is cut off and now we have choice 2 as the answer.

Learn More:

brainly.com/question/27514958 - Find the line equation with given points

8 0
2 years ago
Ralph opens a bank account. The amount, in dollars, in the account x weeks after the account is
Mila [183]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
A bottle contains 34 gallon of fruit punch. If 6 people share the fruit punch equally, how much fruit punch does each person get
Feliz [49]

Answer:

17/3 or in decimal form, 5.67 gallons for each person.

Step-by-step explanation:

If 34 gallons of fruit punch will be shared equally with 6 people, just divide 34 by 6.

34/6 = 17/3 or in decimal form, 5.67 gallons for each person.

5 0
3 years ago
3.
ANEK [815]

Answer:

B. y ≤ –3x + 5

Step-by-step explanation:

Its B, all y-values are less than -3x+5. also consider root by setting -3x+5=0

x=5/3 is positive so its the second one

...................................................................................................................................................

Answer:

Step-by-step explanation:

we know that

The solution of the inequality is the shaded area below the solid line (the gray area)

The slope of the solid line is negative

The y-intercept of the solid line is positive

The equation of the solid line is equal to  

therefore

the equation of the inequality is equal to

3 0
2 years ago
Solve each system by subtracting
otez555 [7]
What systems are you talking about?

7 0
2 years ago
Other questions:
  • Evaluate the function for x = –2a, if a = 3.
    11·1 answer
  • Charles wants to determine which car is the fastest. The actual speed of four cars is shown below: Car A B C D Speed (in km/h) 6
    13·1 answer
  • 4+9-5+60xfffddgddffgsrfddddffttttttgg
    12·1 answer
  • 4. Adrian and Rory started comic book collections at the same time. Adrian
    14·1 answer
  • An airplane is flying from New York City to Los Angeles the distance it travels in Miles D is related to the time in seconds T b
    10·1 answer
  • Please help me with his picture
    10·1 answer
  • What is the equation of the line that passes through the point (-6,7) and has a slope of -5? Write the equation in slope interce
    6·1 answer
  • PLZ ANSWER THIS QUESTION <br><br> what is 10 decreased by u.
    7·2 answers
  • A wheel spins at 300 revolutions per minute. What is the angular velocity of the wheel, in radians per second? Round the answer
    5·1 answer
  • What is the product of (x − 7)(2x² – 5x<br> -<br> 3<br> + 3)?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!