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Ivan
3 years ago
7

3d^2= 10 - 13d how do I factor this

Mathematics
1 answer:
exis [7]3 years ago
3 0

3d^2=10-13d\\3d^2+13d-10 = 0\\(3d -2)(d+5) = 0

This is the function factored

To find their solutions, we just need to set (3d - 2) = 0 and (d + 5) = 0

        d= 2/3 , -5

Hope that helps!

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A teacher is evaluating how students in her first class did on an assessment versus her last class. The box plots show the resul
MrMuchimi

Answer:

The time a student learns mathematics is important for their score

Step-by-step explanation:

Observe the boxes diagrams. Where the horizontal axis represents the score obtained by the students in the test.

The vertical lines that divide the boxes in two represent the value of the median.

The median is the value that divides 50% of the data.

For the class of the morning the value of the median is 50 points, with a maximum value of 80 and a minimum value of 10.

For the afternoon class, the median value is 65 points with a minimum value of 30 and a maximum value of 100.

This indicates that in general, the highest number of high scores were obtained in the afternoon class.

Therefore it can be said that the time a student learns mathematics is important for their  score

4 0
4 years ago
Read 2 more answers
Why do you sometimes need to regroup in 3 digit addition problems
SCORPION-xisa [38]
Because for example 349+567 is something you need to regroup.You start by the ones.9+7=16. You don't always need to regroup though
6 0
3 years ago
The following question has 2 parts. First, answer part A. Then, answer part B.
aalyn [17]

The fraction that represents the addition model shown above will be 53/100.

<h3>How to solve the fraction?</h3>

From the information given, a grid with 10 equal columns is shown with 5 shaded in. This will be expressed as 5/10.

Also, a second grid is shown, identical in size, containing 100 squares with 3 shaded in. This will be expressed as 3/100.

Therefore, the problem that represents the addition model shown above will be:

= 5/10 + 3/100

= 50/100 + 3/100

= 53/100

In this case, the answer given by Emma is incorrect as he added 5 to 3 and got 8/100.

Learn more about fractions on:

brainly.com/question/78672

4 0
2 years ago
besides the 90 degree angle measure, what are the other two angle measures of a right triangle with side lengths 5, 12, and 13
omeli [17]
Use sine cosine and tangent to find the answer. Sine=opposite/hypotenuse
Cosine= adjacent/hypotenuse tangent= opposite/adjacent. This should help you find your answers.
8 0
3 years ago
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A rectangle is 4 units long and 2 units wide. What is its area?
Marrrta [24]

rectangle area = l * w

2 * 4 =

8 units²

4 0
3 years ago
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