MATHEMATICS HIGH SCHOOL

Simplify 6 - (-2) - 3(-5).
-11
-7
19
23

Answers

Answer 1
Answer: 6 - (-2) - 3(-5) = (6 + 2) + 15 = 8 + 15 = 23

Your answer is D. the last one :)
Answer 2
Answer: 6 - (-2)  -3(-5)

- = -1
-1 x -2 = 2

-3 x -5 = 15

6 + 2 + 15 = 23

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Max or min value y=3x^2+6x-5

If xy < zy < 0, is y positive? x < z x is negativeStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked
Both statements (1) and (2) TOGETHER are sufficient to answer the question asked; but NEITHER statement ALONE is sufficient

Answers

Answer:

Both statements (1) and (2) TOGETHER are sufficient to answer the question asked

Step-by-step explanation:

Given statement 1 :

xy < zy < 0,

The product of two numbers are negative if either of the numbers are negative.

∵ if xy < 0 ⇒ Case 1 : x > 0 and y < 0

Case 2 : x < 0 and y > 0,

Thus, Statement is not sufficient to prove y is positive,

Now, Statement 2 :

x < z, x is negative,

That is, x < 0

Combining statements (1) and (2),

We get,

xy < 0, x < 0,

⇒ y > 0

That is, y is positive.

Hence, Both statements (1) and (2) TOGETHER are sufficient to answer the question asked

A van travels 220 miles on 10 gallons of gas. Find how many gallons the van needs to travel 550 miles.31 gallons of gas
121 gallons of gas
25 gallons of gas
115 gallons of gas

Answers

The van will need 25 gallons of gas for it to travel 550 miles. This is calculated by dividing 10 gallons to 220 miles to get the miles per gallons, which in this case is 22 miles per gallon. Then we have to divide 550 miles by 22 miles per gallon to get the total gas consumption, which is 25 gallons.

Answer:

Step-by-step explanation:

To calculate how many gallons the van needs to travel 550 miles you should multiply the number of miles by the relationship between the number of gallons of gas it needs to travel 220 miles, (it is important to put the quantity in miles on the denominator) as follows:

550miles*(10gallons)/(220miles)=25

Therefore the van needs 25 gallons of gas to travel 550 miles

A sector is a wedge-shaped section of a circle graph.

true
false

Answers

True. Draw two lines from the center of the circle that intersect the circumference, the sector is the area comprised between the two lines and the arc of the circumference between them.
 

I REALLY NEED HELP ON THIS, PLEASE!!!!

Answers

1. 2d+3

2.
n\cdot 7\n7n

Cedric buys a cantaloupe every week. The first time he bought a cantaloupe, it cost $2.40. He notices the price is getting less expensive, at a rate of 8% per week.Cedric sketches a graph of the situation, labeling the y-intercept and the point representing the price on Week 4.

Which statements are true?

Select each correct answer.



The graph decreases from left to right.

The graph has an x-intercept and a y-intercept.

The graph increases from left to right.

The point ​ (4, 1.72)​ is on the graph.

The point (4, 3.27) is on the graph.

The graph has a y-intercept only.

Answers

The following statements that are considered as true about Cedrics graph of his situation is as follows:


The point ​ (4, 1.72)​ is on the graph.
The graph has a y-intercept only.
The graph decreases from left to right.

I hope my answer has come to your help. God bless and have a nice day ahead!

In the triangle shown, what is the value of the missing angle?139°


41°


65°


74°

Answers

Because angles in a triangle add up to 180, you can add up the given angles and then take that answer away from 180, so:
65 + 74 = 139
180 - 139 = 41°
So your answer is 41°, I hope this helps!
the answer is 41 degrees

a triangle has 180degrees, is two of the angles add to equal 139 then subtract that from 180 and you get your answer if 41
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