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Brums [2.3K]
3 years ago
12

Write the quadratic equation whose roots are -4 and -3, and whose leading coefficient is 1.

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
4 0

Answer:

x^{2} + 7x+12=0

Step-by-step explanation:

Roots of the equation are -4 and -3.

Quadratic equation can be written as

(x+4)(x+3)=0\\x(x+3)+4(x+3)\\x^{2} +3x+4x+12\\x^{2} + 7x+12=0

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Reil [10]
The measure of angle 3 is 150 degrees
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3 years ago
Answer please<br>.........​
Anna007 [38]

Hey there!

The perimeter of the floor plan is 30 inches.

Perimeter is length + length + width + width, so we can do 9 + 9 + 6 + 6 = 30

The area of the floor plan is 54 inches²

Area is length x width, so we can do 9 x 6 = 54

The perimeter of the actual size is 105 feet

First, we can solve the dimensions for the actual size. We know that 2 inches = 7 feet, so we can do 7/2 and get 3.5. This means that for every 1 inch, it's 3.5 feet. Then, we multiply the dimensions by 3.5:

9 x 3.5 = 31.5 feet

6 x 3.5 = 21 feet

Then we solve for perimeter. Perimeter is length + length + width + width, so we can do 31.5 + 31.5 + 21 + 21 = 105

The area of the actual size is 661.5 inches²

Area is length x width, so we can do 31.5 x 21 = 661.5

Hope this helps! Tell me if you need more help.

8 0
3 years ago
I need help solving ​
vaieri [72.5K]

Answer:

well if you're looking for angles then

angle ADB = 30°

angle CBD = 80°

angle CDB = 120°

but they asked to classify triangle ADC ,whose measurements are 90° , 40° and 50° ...so of they're asking what type of triangle then it is a right angled triangle.

5 0
2 years ago
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The three lines represent the price, in dollars, of three different brands of chocolate bars.
Cloud [144]

Answer:it is z

Step-by-step explanation:i did the khan acadamey

6 0
3 years ago
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FILL IN THE BLANK:
faust18 [17]

Answer:

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Step-by-step explanation:

When you multiply or divide on one side of an inequaltiy, you have to mirror it on the other side and you have to reverse the inequality sign.

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