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2 years ago

5

A student received a 76% on an exam. If there were 20 questions on the exam, which ratio would show the number of questions answ

ered correctly to the
total number of questions? A. 20:15 B. 5:20 C. 15:20 D. 20:5

2 answers:

Studentka2010 [4]2 years ago

7 0

The answer is A
I did it and I got it right

cestrela7 [59]2 years ago

4 0

Answer:

A

Step-by-step explanation:

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a vegetarian sandwich is in the aproximate shape of a cone. the height of the sandwich is 6 inches and the base diameter is 3.5

Olenka [21]

Answer: 19.2inches³

Step-by-step explanation:

The volume of a cone is calculated as:

= 1/3πr²h

where,

π = 3.14

r = radius = diameter/2 = 3.5/2 = 1.75

h = height = 6

Volume = 1/3πr²h

= 1/3 × 3.14 × 1.75² × 6

= 19.2325

= 19.2inches³

Therefore, the volume of the cone-shaped sandwich is 19.2inches³.

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2 years ago

Solve the following expression and state the operation used in each step. Show all of your work 5+9-3^2+2

Pepsi [2]

Answer: 7

5+9-3^2+2
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= 14-9+2
= 5+2
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3 years ago

Triangle MNP is transformed according to the rule T(4,–1). What is the y-coordinate of M”?

weqwewe [10]

-1 because x is on the left and y is always on the right

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3 years ago

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Solve the inequality for u.<br> 24 Simplify your answer as much as possible.

Annette [7]

Answer:

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Step-by-step explanation:

3 0

2 years ago

A square has side length (x+5) units. What is it’s area

daser333 [38]

The area of square is $x^{2}+10 x+25$ square units

<h3><u>Solution:</u></h3>

Given that square has side length (x+5) units

To find: area of square

<em><u>The area of square is given as:</u></em>

$\text {Area of square }=\mathrm{a}^{2}$

Where "a" is the length of side

From question, length of each side "a" = x + 5 units

Substituting the value in above formula,

$\text {Area of square }=(x+5)^{2}$

${\text {Expanding }(x+5)^{2} \text { using the algebraic identity: }} \\\\ {(a+b)^{2}=a^{2}+2 a b+b^{2}}\end{array}$

$\begin{array}{l}{\text {Area of square }=x^{2}+2(x)(5)+5^{2}} \\\\ {\text {Area of square }=x^{2}+10 x+25}\end{array}$

Thus the area of square is $x^{2}+10 x+25$ square units

7 0

3 years ago