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4 years ago

PLZ HELP SOON!!!!!!!!!!!!

1 answer:

3 0

There are two extra credit questions on the Biology test, and 27 questions overall [including the afore-mentioned two]. If Jo answers all questions [including the extra credits] correctly, and each is worth the same amount, what score does she earn?

Answer: 108%

27 − 2 = 25. 100 / 25 = 4. So, each question is worth 4%. 2 x 4% = 8% That’s how much the extra credit is worth. 100% (main test) + 8% (extra credit) = 108% (best score possible).

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Evaluate the expression for s=9<br> 72/s

Vinil7 [7]

Answer:

Step-by-step explanation:

72/s

Let s=9

72/9 = 8

7 0

3 years ago

What is the order from least to greatest(38%,3/8,0.4,1/3,41%,0.33)

Anna35 [415]

.33, 1/3, 3/8, 38%, .4, 41% is order from least to greatest

3 0

3 years ago

A residential community was polling households to find out whether they wanted to get their TV signal from a satellite or cable.

Ira Lisetskai [31]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Identify the quotient in the form a + bi. HELP ASAP PLEASE!!

Artist 52 [7]

Solving $\frac{4-5i}{2+3i}$ we get $-\frac{7}{13}-\frac{22i}{13}$

Option A is correct.

Step-by-step explanation:

We need to find the result of $\frac{4-5i}{2+3i}$

We need to remove i from the denominator. For removing i Multiplying and dividing by 2-3i:

$\frac{4-5i}{2+3i}*\frac{2-3i}{2-3i}$

Solving:

$=\frac{4-5i*2-3i}{2+3i*2-3i}\\=\frac{4(2-3i)-5i*(2-3i)}{(2)^2-(3i)^2}\\=\frac{8-12i-10i+15i^2)}{4-9i^2}\\We\,\,i^2=-1\\=\frac{8-12i-10i+15(-1))}{4-9(-1)}\\=\frac{8-12i-10i-15}{4+9}\\=\frac{8-15-12i-10i}{13}\\=\frac{-7-22i}{13}\\=-\frac{7}{13}-\frac{22i}{13}$

So, solving $\frac{4-5i}{2+3i}$ we get $-\frac{7}{13}-\frac{22i}{13}$

Option A is correct.

Keywords: Complex numbers

Learn more about Complex numbers at:

#learnwithBrainly

5 0

3 years ago

A manufacturer knows that their items have a normally distributed length, with a mean of 13.2 inches, and standard deviation of

Lana71 [14]

Answer:

0.5358

Step-by-step explanation:

Given

mean = μ = 13.2 inches

and

SD = σ = 2.2 inches

We have to find z-score for the given value 13.4 first

z-score = (x-μ)/σ

= (13.4-13.2)/2.2

=0.2/2.2

=0.0909

We have to find the area to the left of given z-score

The area to the left is 0.5358

So, the probability of choosing an item with length less than 13.4 is 0.5358 ..

5 0

3 years ago