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Leno4ka [110]
3 years ago
7

A student's grade depends on her score on four equally-weighted exams. Her average on the first three exams is 92. What must she

score on the fourth exam in order to guarantee a final average of at least 90?
Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
4 0
3x92 = 276 (first 3 exams)
average of at least 90 (90 x 4 = 360)

360 - 276 = 84

Answer
<span>she needs to score at least 84 on the fourth exam </span><span>in order to guarantee a final average of at least 90</span>
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$10.40 to $13.12 is simplify your answer
Bumek [7]

The required simplified value of $10.40 to $13.12 is $2.72.

Given that,
To determine the simplified value of $10.40 to $13.12.

<h3>What is simplification?</h3>

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
In the question, asked about the difference between the numbers
$10.40 to $13.12
= 13.12 - 10.40
= $2.72

Thus, the required simplified value of $10.40 to $13.12 is $2.72.

Learn more about simplification here:
brainly.com/question/12501526

#SPJ1

4 0
2 years ago
I dont really know how to do soh cah toah. please help me find x.
Ipatiy [6.2K]
First notice that the triangle with sides x,y,a and the triangle with sides z,a+b,x are similar. This is true because the angle between sides x,y in the smaller triangle is clearly 30^\circ, while the angle between sides y,z in the larger triangle is clearly 60^\circ. So the triangles are similar with sides x,y,a corresponding to a+b,z,x, respectively.

Now both triangles are 30^\circ-60^\circ-90^\circ, which means there's a convenient ratio between its sides. If the length of the shortest leg is \ell_1, then the length of the longer leg is \ell_2=\sqrt3\ell_1 and the hypotenuse has length \ell_3=\sqrt{{\ell_1}^2+{\ell_2}^2}=2\ell_1.

Since x is the shortest leg in the larger triangle, it follows that a+b=2x, so a+b=15=2x\implies x=\dfrac{15}2
4 0
4 years ago
So who's going to do this aka the queen / King Master ​
attashe74 [19]
590 is your answer mark me brainist please
5 0
3 years ago
If x = - 4 , the value of y = - 6x
Klio2033 [76]

Answer:

y = 24

Step-by-step explanation:

Step 1:

y = - 6x        Equation

Step 2:

x = - 4        Given

Step 3:

y = - 6 ( - 4 )        Input x value

Answer:

y = 24

Hope This Helps :)

4 0
3 years ago
Please answer this in two minutes
Fudgin [204]

Answer:

R = 21.8° to the nearest tenth

Step-by-step explanation:

To find Angle R we use tan

tan ∅ = opposite / adjacent

From the question

The opposite is 2

The adjacent is 5

So we have

tan R = 2/5

R = tan-¹ 2/5

<h3>R = 21.8° to the nearest tenth</h3>

Hope this helps you

3 0
3 years ago
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