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3 years ago

Which grade should I work on first, the highest grade or the lowest grade?

Mathematics

2 answers:

Eduardwww [97]3 years ago

8 0

Answer:

lowest but make sure to keep the highest in your mind and keep working. you've got this! :)

lys-0071 [83]3 years ago

7 0

Answer:

the lowest grade. But also stay on top of ur assignments on the subject u have the lowest grade on because u will fall back behind. this also goes for ur other higher grades. try to spend one hour in each assignments that is past due.

You might be interested in

Given cosα = −3/5, 180 < α < 270, and sinβ = 12/13, 90 < β < 180

torisob [31]

I got

$- \frac{6 3}{65}$

What we know

cos a=-3/5.

sin b=12/13

Angle A interval are between 180 and 270 or third quadrant

Angle B quadrant is between 90 and 180 or second quadrant.

What we need to find

Cos(b)

Cos(a)

What we are going to apply

Sum and Difference Formulas

Basics Sine and Cosines Identies.

1. Let write out the cos(a-b) formula.

$\cos(a - b) = \cos(a) \cos(b) + \sin(a) \sin(b)$

2. Use the interval it gave us.

According to the given, Angle B must between in second quadrant.

Since sin is opposite/hypotenuse and we are given a sin b=12/13. We. are going to set up an equation using the pythagorean theorem.

${12}^{2} + {y}^{2} = {13}^{2}$

$144 + {y}^{2} = 169$

$25 = {y}^{2}$

$y = 5$

so our adjacent side is 5.

Cosine is adjacent/hypotenuse so our cos b=5/13.

Using the interval it gave us, Angle a must be in the third quadrant. Since cos is adjacent/hypotenuse and we are given cos a=-3/5. We are going to set up an equation using pythagorean theorem,

$( - 3) {}^{2} + {x}^{2} = {5}^{2}$

$9 + {x}^{2} = 25$

${x}^{2} = 16$

$x = 4$

so our opposite side is 4. sin =Opposite/Hypotenuse so our sin a =4/5.Sin is negative in the third quadrant so

sin a =-4/5.

Now use cosine difference formula

$- \frac{3}{5} \times \frac{5}{13} + - \frac {4}{5} \times \frac{12}{13}$

$- \frac{15}{65} + ( - \frac{48}{65} )$

$- \frac{63}{65}$

Hope this helps

6 0

3 years ago

39 rounded to the nearest tenth

alexgriva [62]

The correct answer is 39.0

3 0

3 years ago

How do you simplify this equations?

Akimi4 [234]

The answer is:

Square root of 77
—————————
22

You need to rationalize the denominator meaning that you have to get rid of the square root signs in denominator

To get rationalize the denominator you need to multiply both sides by square root of 11

(Square root of 7)(square root of 11)
——————————————————
2(square root of 11)^2

When squaring a square root it makes the square root “go away”

(Square root of 77)
——————————
2(square root of 11^2 or 122) = 2(11)

So:

The answer is

square root of 77
—————————
22

~~hope this helps~~

8 0

4 years ago

A runner's distribution of times for running 1,000 meters has a mean of 4.5 minutes with a standard deviation of 0.75 minutes. O

Annette [7]

Answer:

The runner’s time is 3.18 minutes

Step-by-step explanation:

Mathematically;

z-score = (x-mean)/SD

In this question, we have the z-score but we want to calculate x

From the question

z-score = -1.76

mean = 4.5 minutes

SD = 0.75 minutes

x = ?

Substituting these values, we have that

-1.76 = (x-4.5)/0.75

0.75(-1.76) = x - 4.5

-1.32 = x - 4.5

x = 4.5 -1.32

x = 3.18

3 0

3 years ago

Read 2 more answers

Please help IM TIRED :,)

Ad libitum [116K]

It states that the chef makes 20.5 servings, and that each serving holds 3.275 ounces, so to find the total amount of sauce the chef made you would multiply the number of servings by the volume of each serving, which is 20.5*3.275= 67.1375

There are four decimal places in the product of 67.1375 total ounces of sauce.

6 0

3 years ago