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postnew [5]
3 years ago
14

PLEASE PLEASE PLEASE PLEASE HURRY I ONLY HAVE 59 MINUTES LEFT REEEEEE

Mathematics
1 answer:
KengaRu [80]3 years ago
3 0

Answer:

The second and fourth one

Step-by-step explanation:

The open circle means more/less than or equal to and the closed circle is only more than or less than and it is greater so it goes right

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using your knowledge of cross products how would you solve for x in the following pair of equivalent fraction 7 over x equals 2/
Maslowich

Given:

7 2

---- = ----

x 4

Multiply x by 2: 2x; next, multiply 4 by 7: 28. Then equate 2x and 28.

Solving, we find that x = 14.

7 0
3 years ago
URGENT: plz plz plz help
IRINA_888 [86]
The answers are B, C, and D.

I hope this helps, I have taken the quiz and those are the correct answers! :)
8 0
3 years ago
Read 2 more answers
use the graph that shows the averge number of the heartbeats for an active adult brown bear and hibernating brown bear
julia-pushkina [17]
<span>Given the graph that shows the average number of the heartbeats for an active adult brown bear and hibernating brown bear

Part a</span>.
What does the point (2, 120) represent on the graph?

From the graph the x axis represent the time in minutes while the y axis represent the number of heartbeats.

Therefore, point (2, 120) means that it takes an active adult brown bear an average of 2 minutes to have 120 heartbeat.


Part b.
What does the ratio of the y-coordinate to the x-coordinate for each pair of points on the graph represent?

From the graph the x axis represent the time in minutes while the y axis represent the number of heartbeats.

Therefore, the ratio of the y-coordinate to the x-coordinate for each pair of points on the graph represents the average number of heatbeats of an active brown dear and a hibernating brown dear per minute.


Part c.
Use the graph to find the bear’s average heart rate when it is active and when it is hibernating.

The bear's average heart rate is given by the ratio of the y-coordinate to the x-coordinate for each pair of points on the graph.

This can be obtained by taking any two points from the graph and taking the slope.

Recall that the slope of a line is given by
m= \frac{y_2-y_1}{x_2-x_1}

For the average hearbeat of an active brown bear, using the points (1.5, 90) and (2, 120), we calculate the average heat rate as follows:
Average heart rate = \frac{120-90}{2-1.5} = \frac{30}{0.5} =60 \ beats \ per \ minute

Also, for the average hearbeat of a hibernating brown bear, using the points (1.5, 18) and (2, 24), we calculate the average heat rate as follows:
Average heart rate = \frac{24-18}{2-1.5} = \frac{6}{0.5} =12 \ beats \ per \ minute
4 0
4 years ago
What is the answer for the first one
Rasek [7]
I think the answer's 45
7 0
3 years ago
Read 2 more answers
PLEASE SOLVE!! DUE RIGHT NOW!!! WILL MARK BRAINLIEST IF ANSWERED AND CORRECT!!!!!
Agata [3.3K]

Step-by-step explanation:

a) The measure of angle 7 is also 47 degrees. We know this because angle 5 and angle 7 are vertical angles and vertical angles are always equal.

b and c) Since we know that a straight line has an angle of 180 degrees and that the sum of angle 5 and angle 6 will add to this, we can use that to find the value of x like this:

47+2x-5=180\\47-5+2x=180\\42+2x=180\\42-42+2x=180-42\\2x=138\\\frac{2x}{2} =\frac{138}{2} \\x=69

5 0
3 years ago
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