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Tomtit [17]
3 years ago
15

Evaluate q^2-5q+4, when q equals -2

Mathematics
1 answer:
Anastasy [175]3 years ago
8 0

Answer:

18

Step-by-step explanation:

q^2 - 5q +4

Let q = -2

(-2)^2 - 5(-2) +4

4  + 10 +4

18

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The radius of a circle is 8 cm<br> Calculate the circumference of the circle <br> [Use pi r = 3.1]
Murrr4er [49]

Answer:

Radius is 8 cm, this means that the diameter is 16 cm. the circumference formula is 2(pie)R     2x3.14xRadius... Your answer is 50.265CM

Step-by-step explanation:


3 0
3 years ago
What is the length of line segment KJ?
Karolina [17]

Please consider the attached file.

We can see that triangle JKM is a right triangle, with right angle at M. Segment KM is 6 units and segment MJ is 3 units. We can also see that KJ is hypotenuse of right triangle.

We will use Pythagoras theorem to solve for KJ as:

KJ^2=KM^2+MJ^2

KJ^2=6^2+3^2

KJ^2=36+9

KJ^2=45

Now we will take positive square root on both sides:

\sqrt{KJ^2}=\sqrt{45}

KJ=\sqrt{9\cdot 5}

KJ=3\sqrt{5}

Therefore, the length of line segment KJ is 3\sqrt{5} and option D is the correct choice.

5 0
4 years ago
Solve the compound inequality 3x + 4 ≤ 7
Ierofanga [76]

Answer:

x ≤ 1

Step-by-step explanation:

3x+4≤ 7

3x + 4 - 4 ≤ 7 - 4

3x≤3

x ≤ 1

3 0
3 years ago
Which angles are pairs of corresponding angles? check all that Apply.
miskamm [114]

Answer:

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Step-by-step explanation:

bcyhebvcvbehcbe nhbdwgef che bhcb hsg ge hdbhuj eh

4 0
3 years ago
Which statements could you use to conclude that JKLM is a parallelogram?
telo118 [61]
Angle JML Angle LKJ & Angle MJK = MLK

Why it's correct:

In a parallelogram the opposite angles are congruent (as well as the opposite sides
7 0
4 years ago
Read 2 more answers
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