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3 years ago

If the sudent has grades of 62,67,75, and 89 what is the student's grade befire taking the final exam?

Mathematics

1 answer:

MrMuchimi3 years ago

3 0

Answer:

73.25

Step-by-step explanation:

Add all numbers and divide by 4 to get the average grade.

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Solve the inequality and graph the solution g-3>6

vaieri [72.5K]

Answer: It should be g > 9

Step-by-step explanation:

-Solve:

$g-3>6$

$g-3+3>6+3$

$g>9$

So, Therefore, the result is g > 9

4 0

3 years ago

Use the probability distribution graph to answer the question.

vivado [14]

Answer:

Step-by-step explanation:

So we want to find the value of x where the area to the left of it is equal to 0.6.

Let's start by finding the area of the first triangle, between x=0 and x=4.

A = 1/2 bh

A = 1/2 (4) (0.2)

A = 0.4

So we know a > 4. What if we add the area of that rectangle?

A = 0.4 + bh

A = 0.4 + (1) (0.2)

A = 0.6

Aha! So a = 5.

7 0

4 years ago

Triangles A B C and N M L are shown. Angles B A C and L N M are right angles.

tresset_1 [31]

The additional information needed to prove both triangles are similar are:

A. ∠B ≅ ∠M

C. △ABC was rotated and dilated by a scale factor between 0 and 1

E. ∠C ≅ ∠L

<h3>What are Similar Triangles?</h3>

When a triangle is rotated and dilated by a scale factor, the new triangle formed has the same shape but different size of the original triangle. However, all its corresponding angles remains congruent.

Thus, for triangles ABC and NML to be similar to each other, since we already known each have one congruent right angles, the additional information needed are:

A. ∠B ≅ ∠M

C. △ABC was rotated and dilated by a scale factor between 0 and 1

E. ∠C ≅ ∠L

Learn more about similar triangles on:

brainly.com/question/2644832

#SPJ1

5 0

2 years ago

Initially 100 milligrams of a radioactive substance was present. After 8 hours the mass had decreased by 2%. If the rate of deca

4vir4ik [10]

Answer:

The half life of the radioactive substance is 277 hours.

Step-by-step explanation:

initial mass, No = 100 mg

mass decayed = 2% = 2 mg

Mass remained , N = 98 mg

time, t = 8 hours

Let the half life is T.

Use the equation of radioactivity

$N = No\times e^{\frac{-0.693 t}{T}}\\\\98 = 100 \times e^{\frac{-0.693\times 8}{T}}\\\\0.98 = e^{\frac{-5.54}{T}}\\\\ln 0.98 = -\frac{5.54}{T}\\\\-0.02= -\frac{5.54}{T}\\\\T = 277 hours$

5 0

3 years ago

3x 2 + 7x - 5 name the terms

Ulleksa [173]

Answer:

Hello! Your answer would be, BELOW

Step-by-step explanation:

$-3x^{2} - 7x - 5$

A term is a single mathematical expression. It may be a single number (positive or negative), a single variable ( a letter ), several variables multiplied but never added or subtracted. Some terms contain variables with a number in front of them. The number in front of a term is called a coefficient.

Term's are 7x and 5

<u>Hope I helped! Ask me anything if you have questions! Brainiest plz. Hope You make a 100%! Have a nice day! -Amelia♥</u>

6 0

3 years ago