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DerKrebs [107]
3 years ago
13

The length of a rectangle is 3cm more than twice the width. The perimeter of the rectangle is 42 cm. Find the dimensions of the

rectangle
Mathematics
1 answer:
bogdanovich [222]3 years ago
5 0
The width is 6cm
And the length is two times + 3 of the width
6 X 2 + 3 = 15
Add all 4 sides for the perimeter 6+6+15+15=42
The the dimensions are a rectangle that is 6cm wide and 15cm tall
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3x²-12x-60=0
simplify by dividing by 3: x²-4x-20=0
cannot be factored, use the quadratic formula: √(b²-4ac)=√[(-4)²-4*1*(-20)]=√96=4√6
x=2+2√2 or x=2-2√2
3 0
3 years ago
Which is an x-intercept of the continuous function in the table?
Ad libitum [116K]

Answer:

B. (3, 0)

Step-by-step explanation:

The x-intercept is the point where the graph of the function meets the x-axis.

At x-intercept, y=0 or f(x)=0

So look through the table and find where f(x)=0.

From the table, f(x)=0 at x=3.

We write this as an ordered pair.

Therefore the x-intercept is (3,0)

The correct choice is B.

7 0
3 years ago
Read 2 more answers
Questions 3, 4, and 5.
Sunny_sXe [5.5K]

Answers:

  • Reason 2) Given. Specifically, the diagram shows that the two angles are adjacent and supplementary, which is why the two angles are a linear pair.
  • Reason 3) Definition of Linear Pair. As stated above, a linear pair of angles add to 180 degrees (they are supplementary).
  • Statement 4) m \angle WZX = 90 \text{ and } m \angle WZV = 90 since the term "right angle" is another way of saying "90 degree angle"
  • Statement 5) \overset{\leftarrow -\rightarrow}{WY} \perp \overset{\leftarrow -\rightarrow}{XV} The upside down "T" symbol means "perpendicular". Perpendicular lines form 90 degree angles at the intersection.

Side note: The double arrow over WY and XV in statement 5 is supposed to be an unbroken line.

6 0
4 years ago
$750,000 is what percent of $3,000,000?<br> Please help
velikii [3]

Answer:

25

Step-by-step explanation:

Solution for 750000 is what percent of 3000000:

750000:3000000*100 =

(750000*100):3000000 =

75000000:3000000 = 25

Now we have: 750000 is what percent of 3000000 = 25

Question: 750000 is what percent of 3000000?

Percentage solution with steps:

Step 1: We make the assumption that 3000000 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$x​.

Step 3: From step 1, it follows that $100\%=3000000$100%=3000000​.

Step 4: In the same vein, $x\%=750000$x%=750000​.

Step 5: This gives us a pair of simple equations:

$100\%=3000000(1)$100%=3000000(1)​.

$x\%=750000(2)$x%=750000(2)​.

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

$\frac{100\%}{x\%}=\frac{3000000}{750000}$

100%

x%​=

3000000

750000​​

Step 7: Taking the inverse (or reciprocal) of both sides yields

$\frac{x\%}{100\%}=\frac{750000}{3000000}$

x%

100%​=

750000

3000000​​

$\Rightarrow x=25\%$⇒x=25%​

3 0
3 years ago
What is 9393÷76= I need help with this sum
Nikolay [14]
The exact answer is 123.592105263
Hope This Helps You!
Good Luck Studying :)
7 0
4 years ago
Read 2 more answers
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