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Kruka [31]
1 year ago
12

This box plot shows information about the marks scored in a test. 40 50 60 70 Points scored Nobody gained exactly 30, 48 or 70 m

arks. 120 students gained less than 70 marks. How many students gained more than 48 marks? 80 90 100 10 20 30
Mathematics
1 answer:
Sonbull [250]1 year ago
7 0

Answer:

80

Step-by-step explanation:

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Which of these ordered triples indicates where the plane cuts the x-axis for this equation? 7x +2y +3z =42 A. (14,0,0) B. (7,0,0
pickupchik [31]
My answer is: D. <span>(6,0,0)

Given: 
</span><span> 7x +2y +3z =42

I assumed that the format in the given choices is (x,y,z). So, I substituted each number to its corresponding variable.

A. </span>(14,0,0)  → 7(14) +2(0) +3(0) = 42 → 98 + 0 + 0 ≠ 42  NOT THE ANSWER<span>
B. (7,0,0) </span>→ 7(7) +2(0) +3(0) = 42 → 49 + 0 + 0 ≠ 42 NOT THE ANSWER<span>
C. (21,0,0) </span>→ 7(21) +2(0) +3(0) = 42 → 147 + 0 + 0 ≠ 42 NOT THE ANSWER<span>
D. (6,0,0) </span>→ 7(6) +2(0) +3(0) = 42 → 42 + 0 + 0 = 42 CORRECT ANSWER.


<span>The ordered triples indicated where the plane cuts the x-axis for this equation is D. (6,0,0). </span>
4 0
2 years ago
Read 2 more answers
The two-way frequency table shows the results of a survey of a certain forest. Find the probability that a randomly chosen tree
pshichka [43]
Just read the table! 

<span>From "the probability that a randomly chosen tree": </span>
<span>    ⇒ How many Trees? </span>
<span>Write the denominator. </span>

<span>From "will be a California redwood tree taller than 300 ft"" </span>
<span>    ⇒ How many California redwood tree taller than 300 ft? </span>
<span>Write the numerator. </span>

<span>Done.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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8 0
2 years ago
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The density of an object can be found by taking its mass and dividing by its volume. Write an equation to represent the relation
prisoha [69]

Answer:

Step-by-step explanation:

The density of an object can be found by taking its mass and dividing by its volume.

Hence if density is D , Mass is M and Volume is V

D=\frac{M}{V}

a)

M = 500 gms

V = 40 cubic cm

D=\frac{500}{40}

D=12.5

b)

M = 125 gms

V = 1.4 cubic cm

D=\frac{125}{1.4}

D=89.28

D =89.28 gm per cc

3 0
1 year ago
While measuring specimens of nylon yarn taken from two spinning machines, it was found that 9 specimens from the first machine h
stepladder [879]

kaaaaaaaaaaaaaaaaabbbichaStep-by-step explanation:

8 0
1 year ago
Find the additive inverse of 6-3i.
puteri [66]
Hey there!

In order to find the additive inverse of any number, regardless if it is real or not, you can simply multiply the number by -1 or negate it.

This should look like this:
-(6-3i)
=-6+3i

Therefore, the additive inverse of 6-3i is -6+3i.

**Note: Keep in mind, when the additive inverse of a number is added to the number, the number equals 0:
(6-3i)+(-6+3i)=0

Hope this helps and have a marvelous day! :)
5 0
1 year ago
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