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3 years ago

Is this right yes or no

Mathematics

2 answers:

tatyana61 [14]3 years ago

6 0

Answer:

yes you did that correctly

torisob [31]3 years ago

5 0

Yes it’s correct! Good job! :)

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3 solutions for equation y=7x

vodomira [7]

y=7x

x = -1 y = -7
x = 0 y = 0
x = 1 y = 7

5 0

4 years ago

What is the surface area to a cylinder

Maslowich

Answer:

A. 2(Pi)rh+2(Pi)r^2

Step-by-step explanation:

The surface area of a cylinder is the sum of the lateral area and the area of the two circular ends.

The lateral area is the product of the circumference of the cylinder and its height:

lateral area = 2πrh

The area of the two ends is twice the area of each of those circles, so is ...

total end area = 2(πr²)

Then the total surface area of a cylinder is ...

SA = 2πrh +2πr²

7 0

4 years ago

Sid’s Yummy Food store sold 13 bagels. 9 of them were poppy seed bagels. What is the experimental probability that the next bage

Alenkasestr [34]

Answer: will it be 4/13?

Step-by-step explanation:

5 0

3 years ago

If a > b > c > d, then which is larger, a+c or b+d ? Can we tell from a > b > c > d which of a+d and b+c is la

victus00 [196]

Answer:

1. a+c is larger than b+d

2. No way to tell whether a+d or b+c is larger.

Step-by-step explanation:

1. Which is larger, a+c or b+d?

Let a, b, c, and d be any numbers such that $a > b > c > d$ .

Specifically, note that $a > b$ , and subtracting b from both sides of the inequality, observe that $a-b > 0$ .

Similarly, $c > d$ , and subtracting d from both sides of the inequality, observe that $c-d > 0$ .

From this, add "a-b" (a positive number, as proven above) to both sides of the inequality.

$(a-b)+(c-d) > (a-b)+0$

Addition by zero (the additive identity) doesn't change anything, so the right side remains "a-b"...

$(a-b)+(c-d) > a-b$

... and "a-b" is positive...

$(a-b)+(c-d) > a-b > 0$

... so, by the transitive property of inequality...

$(a-b)+(c-d) > 0$

Recall that subtraction is addition by a negative number...
$a+(-b)+c+(-d) > 0$

...and that addition is associative and commutative, so things can be added in any order, so the middle two terms on the left side can be rearranged...

$a+c+(-b)+(-d) > 0$

Adding b + d to both sides of the inequality

$(a+c+(-b)+(-d))+(b+d) > 0+(b+d)$

... and simplifying

$a+c > b+d$

So, a+c is larger than b+d.

2. Which is larger, a+d or b+c?

Consider the following two examples:

Example 1

Suppose a=10; b=3; c=2; d=1.

Note that $a > b > c > d$ ( $10 > 3 > 2 > 1$ ) and, also observe that $a+d=(10)+(1)=11$ , and $b+c=(3)+(2)=5$ , so a+d is larger than b+c.

Example 2

However, suppose a=10; b=9; c=8; d=1.

Note that $a > b > c > d$ ( $10 > 9 > 8 > 1$ ) but that $a+d=(10)+(1)=11$ , and $b+c=(9)+(8)=17$ , so a+d is smaller than b+c.

So, in one example, a+d is bigger, and in the other, a+d is smaller. Therefore, there is no way to tell which of a+d or b+c is larger from only the given information.

5 0

2 years ago

What is the equation of the line shown in the graph below? *

GaryK [48]

Answer:

y=1/2x−2

Step-by-step explanation:

if you find the 2 point that touch the y and x-axis on the graph, (4,0) and (0,-2), and put it in y=mx+b formula, you get the answer.

8 0

3 years ago