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3 years ago

on a SOL, a test that had 60 questions. how many questions could've you gotten wrong to have a passing grade?

Mathematics

2 answers:

iren [92.7K]3 years ago

7 0

I think its 45 or 55

Alisiya [41]3 years ago

5 0

20 questions.

You need a above a 66% to pass and 66% of 60 is 40. That means you could've missed 20 questions and still passed.

Hope that helps!

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Simplify. 2 - 30 × 5

exis [7]

First you would do -30x5 which equals -150 then 2-150 equals -148

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3 years ago

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Karen is buying pens and pencils for the new school year. She wants to have no more than 25 writing utensils in all. She also wa

bezimeni [28]

For this case, the first thing we must do is define variables.
We have then:
x: number of pens
y: number of pencils
We now write the system of inequations:
$x + y \leq 25

y \geq (x - 3) ^ 2
$
The solution to the system of inequations is given by the shaded region.
Note: see attached image.

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3 years ago

How many times does the quadratic function intesect the x axis y=2x^+7x+6

atroni [7]

Answer:

There are two intersections

Step-by-step explanation:

The number of intersections can be found by calculating the delta of the equation

Δ=b²-4ac

if Δ=0, there is 1 intersection

if Δ>0 there are 2 intersections

if Δ=<0, there are no intersections

where the quadratic equation is in the form ax²+bx+c

Δ=7²-4(2)(6)

=1>0

There are two intersections

6 0

3 years ago

The rectangle is 3 3⁄4 centimeters long and 2 1⁄2 centimeters wide. What is the area of this rectangle?

scZoUnD [109]

Answer:

The answer to your question is Area = 9 3/8

Step-by-step explanation:

Data

length = 3 3/4 cm

width = 2 1/2 cm

Process

1.- Write the equation of the Area of a rectangle

Area = length x width

2.- Convert the values to improper fractions

3 3/4 = (12 + 3)/ 4 = 15/4

2 1/2 = (4 + 1) / 2 = 5/2

3.- Substitution

Area = (15/4)(5/2)

4.- Simplification

Area = 75/8

5.- Convert to a mixed fraction

8 75

6.- Result

Area = 9 3/8

6 0

3 years ago

The table shows the height of a plant as it grows. what equation in point slope form gives the plants height at any time

Mazyrski [523]

Answer:

$y - 15 = 5(x-3)$

Step-by-step explanation:

Equation of a line:

The equation of a line, in point slope form, is given by:

$y - y_0 = m(x - x_0)$

In which the point is $(x_0,y_0)$ and m is the slope.

3/15

This means that $x_0 = 3, y_0 = 15$

$y - 15 = m(x - 3)$

Finding the slope:

Suppose we have two points. The slope is given by the change in the output divided by the change in the input.

3/15

5/25

Change in the output: 25 - 15 = 10

Change in the input: 5 - 3 = 2

$m = \frac{10}{2} = 5$

The equation is:

$y - 15 = 5(x-3)$

8 0

3 years ago