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skelet666 [1.2K]
2 years ago
12

X² + 7x + 12 factorise it​

Mathematics
1 answer:
Sidana [21]2 years ago
4 0

Step-by-step explanation:

x²+7x+12

x²+4x+3x+12

x(x+4)+3(x+4)

(x+3)(x+4)

hope it helps

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How much would you save, per pound, if you buy your ground beef at SuperGrocery A, rather than SuperGrocery B?
zhannawk [14.2K]

Hence, the amount saved by buying at Supergrocery A is; $6.10 - $4.76 = $1.34

<h3>Slope of Graphs;</h3>

According to the questions;

The cost to buy 1 pound of beef from the Supergrocery A is the slope of the given graph;

  • Slope, m = (47.60 - 23.80)/(10-5)

  • m = 23.80/5

  • m = 4.76

Therefore, the cost per pound of beef at Supergrocery A is $4.76 which is cheaper than $6.10 at Supergrocery B.

Hence, the amount saved by buying at Supergrocery A is; $6.10 - $4.76 = $1.34

Read more on slope;

brainly.com/question/3493733

6 0
2 years ago
The minimum of a parabola is located at (-1,-3).the point (9,1) Is also on the graph which equation can be solved to determine t
Tju [1.3M]

Answer:

(8,-2)

Step-by-step explanation:

9-1 and 1-3

8 0
2 years ago
Hey can you please help me
anygoal [31]

Answer:

C


Step-by-step explanation:

General Form of an equation of a line is given by:  y=mx+b

Where,

m is the slope, and

b is the y-intercept (point where line cuts the y-axis)

Also, parallel lines have equal slopes.


Equation of first plane is given as  d=3.67t+4.81

Comparing this with general form of a line, we see that 3.67 is the slope and 4.81 is the y-intercept.

<em>The </em><em>second plane </em><em>is going </em><em>parallel</em><em> to this. So slope should be same. Hence </em><em>second plane has slope of 3.67. </em><em>We can write:</em>

<em>d=3.67t+c</em>


<u>To find the equation of second plane</u>, we need to solve for c. Also, a point given for second plane is (t=0, d=2.14) , substituting these values into the equation we got, we get the value of c:

2.14=3.67(0)+c\\2.14=0+c\\c=2.14


We already know m and now we know c, so we can write final equation as:

d=3.67t+2.14

Answer choice C is right.

8 0
2 years ago
What is the probability that you flip a penny 4 times and it lands on tails all four times in a row?
Elodia [21]

Answer: 1/8

Step-by-step explanation:

Since flipping a coin once and it landing on tails is 1/2, multiply it by however many times you flip it, and that will be you're answer.

5 0
2 years ago
Which angles are vertical angles?
lesya692 [45]

Answer:

<DCA and <BCF

Step-by-step explanation:

vertical angles are the opposite angles created by intersecting lines and are congruent. Vertical angles share only a vertex

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3 years ago
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