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3 years ago

Which sum is equivalent to (11k2 + 3k + 1)?

2 answers:

7 0

A) You can only add together like terms, so adding the k^2, k, and terms without k gives 4k^2+7k^2+2k+k+6-5=11k^2 +3k +1

BabaBlast [244]3 years ago

4 0

a) 4k^2 + k – 5) + (7k^2 + 2k + 6)

11k^2 +3k +1

Choice A

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HELP PLZ DUR 11;59 plz help me

Norma-Jean [14]

Answer:

Base = 10 cm

Height = 60 cm

Step-by-step explanation:

The formula for the area of a triangle is $area=\frac{1}{2} *b*h$ , where b is the length of the base of the triangle, and h is the length of the height of the triangle.

We know the area is 300, and since the height of the triangle is 6 times its base, we know that $h=6*b$ . We can plug in these values into our formula for the area of a triangle, which gives us the following equation to solve:

$300=\frac{1}{2} *b*(6*b)$

$3b^2=300$

$b=\sqrt{100} =10$

The base of the triangle is 10 centimeters.

Now that we know the base of the triangle, we can plug its value in to the original formula to solve for the height of the triangle, which gives us the following equation:

$300=\frac{1}{2} *10*h$

$5h=300$

$h=60$

The height of the triangle is 60 centimeters.

5 0

3 years ago

What is the missing number? 9/21 ?/105 A. 5 B. 45 C. 89 D. 93

4vir4ik [10]

B.

Hope this helps!!!

6 0

3 years ago

Read 2 more answers

The measures of two angles of a triangle are 25° and 87°. Is the triangle acute, right, or obtuse? Explain.

iVinArrow [24]

The answer is A all three angles are acute (less than 90°)

3 0

3 years ago

What is the length of segment AB? (4 points)

Sveta_85 [38]

Answer:

10 units

Step-by-step explanation:

$\sqrt{(0-6)^{2} +(10-2)^{2} }\\\\\sqrt{(-6)^{2}+(8)^{2} } \\\\\sqrt{36+64}\\\\\sqrt{100}\\\\10$

3 0

3 years ago

Solve for x. Show your work. For each picture, please

finlep [7]

If two secants intersect from a point outside of the circle, then the product of the lengths of the secant and its external segment equals the product of the other secant and its external segment.

#1
5(x+5) = 6(4+6)
5x + 25 = 6 * 10
5x = 60 - 25
5x = 35
x = 7

#2
4(x+4) = 3(5+3)
4x + 16 = 3 * 8
4x = 24 - 16
4x = 8
x = 8/4
x = 2

8 0

3 years ago