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scZoUnD [109]
3 years ago
11

Nicole has evaluation scores of 93, 88, 76. Her fourth evaluation will be averaged with her previous three scores

Mathematics
2 answers:
ELEN [110]3 years ago
8 0

Answer:

93

Step-by-step explanation:You need to understand that you're solving for the average, which you already know: 90. Since you know the values of the first three exams, and you know what your final value needs to be, just set up the problem like you would any time you're averaging something.

Fofino [41]3 years ago
6 0

Answer:

Is there more to the question?

Step-by-step explanation:

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0647grams nearest tenth
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Bill notes that his apple tree is 4/5 the size of his pear tree is apple tree is 4 M tall how tall is the pear tree
e-lub [12.9K]

1) Given that the apple tree is 4/5 pear tree we can write

Apple Tree size = 4/5 Peartree

Apple tree= 4m

2) So we can write the following expression for that:

\begin{gathered} Apple=\frac{4}{5}P \\ 4=\frac{4}{5}_{}P \\ 4P=20m \\ P=\frac{20}{4} \\ P=5 \\  \\  \end{gathered}

So the Pear tree is 5 meters tall, and the apple tree is 4/5*5 = 4 m

7 0
1 year ago
Which complex number is equivalent to (5 + 12i) − (9i2 − 6i), where i = <br> −1<br> ?
Alchen [17]

Answer:

14 + 18i

Step-by-step explanation:

(5 + 12i) - (9 {i}^{2}  - 6i) \\  = (5 + 12i) - (9 \times  (- 1) - 6i) \\  = (5 + 12i) - ( - 9 - 6i) \\  = (5 + 12i)  +  (  9  + 6i) \\  = 5 + 12i + 9 + 6i \\ \red { \bold{  = 14 + 18i}}

5 0
3 years ago
Math question plz help me
Minchanka [31]

Answer:

The required equation of the line is:

y=\frac{1}{4}x-1

Step-by-step explanation:

Given the equation

y=-4x+3

comparing the equation with the slope-intercept form

y=mx+b

Here,

  • m is the slope
  • y is the intercept

so the slope of the line is  -4.

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line, so

The slope of the perpendicular line will be: 1/4

Therefore, the point-slope form of the equation of the perpendicular line that also intersects the point (8, 1) is:

y-y_1=m\left(x-x_1\right)

y-1=\frac{1}{4}\left(x-8\right)

add 1 to both sides

y-1+1=\frac{1}{4}\left(x-8\right)+1

y=\frac{1}{4}x-1

8 0
3 years ago
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