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agasfer [191]
3 years ago
14

To determine a student’s grade, a teacher throws out the lowest grade obtained on 5 tests, averages the remaining grades, and ro

und up to the nearest integer. if betty scored 75, 90, 88, 72, and 86 on her tests, what grade will she receive?
Mathematics
1 answer:
schepotkina [342]3 years ago
6 0

Answer:

85

Step-by-step explanation:

add 4 values, excluding 72 (lowest grade)

total = 339

average = 330/4 = 84.75

84.75 rounding to nearest integer is 85

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One solution of the quadratic equation X2 – 19x + 48 = 0 is 3. What is the other solution?
Liula [17]

Answer:

16

Step-by-step explanation:

The equation is X2 – 19x + 48 = 0

Using the quadratic formula

X= - b +- √ ( b^2 - 4ac)/ 2a

Where a= 1 b= -19 c= 48

Substitute into the formula we have

CHECK THE ATTACHMENT

HENCE, the solution are 3 and 16

7 0
3 years ago
52.3 is what percent of 1046​
satela [25.4K]

Answer:

https://www.percentagecal.com/answer/52.3-is-what-percent-of-%20%201046

Step-by-step explanation:

This will help you calculate any future percentages.

8 0
2 years ago
An Archer shoots an arrow horizontally at 250 feet per second. The bullseye on the target and the arrow are initially at the sam
Genrish500 [490]

Answer:

<h2>1.84feet</h2>

Step-by-step explanation:

Using the formula for finding range in projectile, Since range is the distance covered in the horizontal direction;

Range R = U\sqrt{\frac{H}{g} }

U is the velocity of the arrow

H is the maximum height reached = distance below the bullseye reached by the arrow.

R is the horizontal distance covered i.e the distance of the target from the archer.

g is the acceleration due to gravity.

Given R = 60ft, U = 250ft/s, g = 32ft/s H = ?

On substitution,

60 = 250\sqrt{\frac{H}{32}} \\\frac{60}{250} = \sqrt{\frac{H}{32}}\\\frac{6}{25} = \sqrt{\frac{H}{32}

Squaring both sides we have;

(\frac{6}{25} )^{2} = (\sqrt{\frac{H}{32} } )^{2} \\\frac{36}{625} =  \frac{H}{32} \\625H = 36*32\\H = \frac{36*32}{625} \\H = 1.84feet

The arrow will hit the target 1.84feet below the bullseye.

5 0
3 years ago
Gail, Lucas, and Joel are playing a number game where they must draw a card with a number on it. Then they compare the numbers o
Verdich [7]

Answer:

90

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
What is the slope of the line shown below?
Ksivusya [100]
M = (8-2)/(4-2) = 3
Therefore the slope is 3 (D).
7 0
3 years ago
Read 2 more answers
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