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3 years ago

Determine which ordered pair is a solution of y = x to the power of 2, minus 2. Choices: (5,21), (-5, 24), (-1, -1), (-2, 6)

Mathematics

2 answers:

qaws [65]3 years ago

6 0

Ohhh i get it that one dude is right it is c

Leno4ka [110]3 years ago

6 0

Answer: Below

Step-by-step explanation:

Y and x can be any number you have to start of with a number for x, you can't put (y,x)^2-2 if you don't know a value

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The following table gives data relating the intensity of exercise on a scale of 0-1 and the pulse rate of the person. If the int

xxTIMURxx [149]

Answer: $The$ $answer$ $is$ $C.$ $200$

Step-by-step explanation:

$I ~can ~see ~that ~it ~does~ not ~appear ~to ~be$ $LINEAR$

$y = 73e^kx$ $< ---~pulse~rate$

$.7$ $when$ $y = 155$ $< ---~sub ~in ~x$

$155 = 73 e^(.7 * k)$

$ln ( 155/73) = .7k$

$.75296567 = .7k$

$k = 1.07567$

$for$ $x = 0.9 :$ $pulse rate = y = 73 e^(1.07567$ $^. .9) = ~ 192$

$Therefore~your~answer~is:~C.~200$

4 0

1 year ago

Write an equation of the line below.

Lubov Fominskaja [6]

Answer (<u>assuming it can be in slope-intercept form)</u>:

$y = \frac{4}{5} x$

Step-by-step explanation:

1) First, find the slope of the line. Use the slope formula $m = \frac{y_2-y_1 }{x_2-x_1}$ and substitute the x and y values of two points on the line into it. We can see that the line passes through (0,0) and (5,4), so let's use those points for the formula and solve:

$m = \frac{4-0}{5-0} \\m = \frac{4}{5}$

So, the slope is $\frac{4}{5}$ .

2) Next, identify the y-intercept of the line. The y-intercept is the point at which the line intersects the y-axis. We can see that the line intersects the y-axis at (0,0), so that must be the y-intercept.

3) Now, write the equation of the line in slope-intercept form using the $y = mx + b$ format. The number in place of $m$ represents the slope, so substitute $\frac{4}{5}$ in its place. The number in place of $b$ represents the y-intercept, so substitute 0 in its place. This gives the following answer and equation:

$y =\frac{4}{5} x+0\\y = \frac{4}{5} x$

4 0

3 years ago

Read 2 more answers

Will name Branliest!<br> Solve for x. x/3≤−6

kobusy [5.1K]

Answer:

x ≤ -18. I hope this helps

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

two blocks of wood are shaped as right rectangle prisms the smaller block has a length of 9 cm a width of 3 cm and a height of 7

dolphi86 [110]

Answer:

1,512 cm³

Step-by-step explanation:

The general formula for the volume of a prism is:

V= Bh, where B = the area of the base and h = height of the prism

Given the dimensions of the smaller block as 9cm x 3cm x 7cm, then the dimensions of the larger block (double the dimensions of the smaller block) must be 18cm x 6cm x 14cm. Using these measurements:

V = (18)(6)(14) = 1,512 cm³

3 0

3 years ago

Point R is located at (1, 2) on a coordinate grid. Point S is located at (4, 5) on the same

Aleksandr-060686 [28]

Answer:

4.2 units

most likely answer choice B

Step-by-step explanation:

(1, 2) and (4, 5)

To find the distance between two points, we use the distance formula:

$d = \sqrt{(x_{2}-x_1)^2 + (y_2-y_1)^2 }$

Let's plug in what we know.

$d = \sqrt{(4 - 1)^2 + (5 - 2)^2 }$

Evaluate the parentheses.

$d = \sqrt{(3)^2 + (3)^2 }$

Evaluate the exponents.

$d = \sqrt{(9) + (9) }$

Add.

$d=\sqrt{18}$

Evaluate the radical.

d = 4.24

Round to the nearest tenth.

d = 4.2 units

*note: The answer choice is 4.6. I'm not sure if that is a typo on someone's end, but the distance between these two points is exactly 4.24264068712 units.

Hope this helps!

6 0

2 years ago