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amid [387]
3 years ago
15

Factor the expression: x^2-3x-40

Mathematics
1 answer:
attashe74 [19]3 years ago
6 0
(x-8) (x+5) are the factors for the expression as -8 and 5 multiply to make -40 and add to make -3.
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Is 2(x+3)=5x+6-3x always true or never true?
egoroff_w [7]

Answer:

always true

Step-by-step explanation:

Distribute the left side

2(x + 3) = 2x + 6

Simplify the right side

5x + 6 - 3x ← collect like terms

= 2x + 6

Thus

left side = right side , so always true

8 0
3 years ago
Triangle ABC is a right triangle. Point D is the midpoint of side AB and point E is the midpoint of side AC. The measure of angl
Sophie [7]

Answer: D is the correct answer

Step-by-step explanation:

Just took the test

6 0
3 years ago
Which missing piece of information would allow the triangles in the figure to be proven congruent by AAS? answer: A) ∠C ≅ ∠L B)
anzhelika [568]

Answer:

B) ∠B ≅ ∠K

Step-by-step explanation:

The Angle-Angle-Side Postulate (AAS) states that if two angles and a non-included side of one triangle are congruent to two angles and the corresponding non-included side of another triangle, then the two triangles are congruent.

Given that ∠A ≅ ∠J and AC ≅ JL, then we need that ∠B ≅ ∠K to satisfy postulate AAS (the two angles are ∠A and ∠B in one triangle and ∠K and ∠J in the other one, and the non-included side is AC in one triangle and JL in the other one).

7 0
3 years ago
Use the internet to find the population of ohio. then use this site to estimate the area of ohio in square miles. what is your e
vekshin1

Area of Ohio ≈ 45,000 square miles

The population density of Ohio is 261.33 people / square miles

<h3>Population Density </h3>

From the question, we are to determine the population density of Ohio

Using the internet,

Population of Ohio = 11,760,000

Area of Ohio = 44,825 square miles

Area of Ohio ≈ 45,000 square miles

Population density is given by the formula,

Population density = Number of people / Land area

Thus,

Population density of Ohio = 11760000/45000

Population density of Ohio = 261.33 people / square miles

Hence, the population density of Ohio is 261.33 people / square miles

Learn more on Population Density here: brainly.com/question/26910545

#SPJ1

3 0
1 year ago
Data Set: 5, 8, 10, 10, 15, 18, 23. What is the mean of this data set? (only type one number as your answer and round to the nea
Sergio039 [100]

Answer:

Mean (average): 12.71429 or preferably 13.

5 0
3 years ago
Read 2 more answers
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