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3 years ago

12

Kennedy earned a grade of 81% on her multiple choice math final that had a total of 200 problems. How many problems on the final

exam did Kennedy get wrong?

2 answers:

Sedbober [7]3 years ago

6 0

Answer:

162 out of 200

Step-by-step explanation:

81 percent of 100 is 81. multiply that by two to get 162

Soloha48 [4]3 years ago

6 0

Answer:

38

Step-by-step explanation:

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Is it A B C or D o just need help with that

almond37 [142]

Answer:

B

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

Let’s go I need help on number 9 I’ll give you brainliest

Nitella [24]

Answer is 24. Hopefully your talking abt the one that starts with (-5)

4 0

3 years ago

select “equivalent” or “not equivalent” to indicate whether the expression above is equivalent or not equivalent to the values o

Volgvan

9514 1404 393

Answer:

Equivalent
Not Equivalent
Equivalent
Not Equivalent

Step-by-step explanation:

The applicable rules of exponents are ...

(a^b)(a^c) = a^(b+c)

(a^b)^c = a^(bc)

__

The left-side expressions (all the same) can be simplified to ...

(7^(1/5))·(49^(7/5)) = (7^(1/5))·((7^2)^(7/5))

= (7^(1/5))·(7^(14/5)) . . . . . . matches 3rd right-side expression

= 7^(1/5 +14/5) = 7^(15/5) = 7^3

= 343 . . . . . . . . . . . . . . . . . . matches 1st right-side expression

__

49 is obviously not equivalent to 343.

49^(2/10) is obviously not equivalent to 49^(7/5).

7 0

2 years ago

Price ($)87654321Price of CupsFind the unit rate ofthe price per cup.$[?]$54 cups 1 cup=Give your answer asa decimal.

Yanka [14]

Solution

Given the question in the image, the following are the solution steps to answer the question.

STEP 1: Write the formula for slope

$m=\frac{y_2-y_1}{x_2-x_1}$

STEP 2: Pick two points

STEP 3: Find the unit price per cup

Since 4 cups cost $5, one cup will cost

$\frac{5}{4}=\text{ \$}1.25\text{ per cup}$

Therefore, the answer is $1.25

8 0

2 years ago

Two forces act on an object. The first Force has a magnitude of 400 Newtons and acts at an angle of 30 degrees as measured from

Sedaia [141]

ANSWER

Option D is correct

EXPLANATION

We resolve the forces into component forms.

$F_1 = 400 \cos(30) i + 400 \sin(30) j$

$F_1 = 200 \sqrt{3} i +200j$

Also the second is resolved to obtain,

$F_2= 280 \cos(135) i + 280 \sin(135) j.$

$F_2= - 140 \sqrt{2} i + 140 \sqrt{2} j$

To find the resultant vector, V, We add the corresponding components of the two forces to get:

$V=F_1+F_2$

$\implies \: V = (200 \sqrt{3} - 140 \sqrt{2} )i + (200 + 140 \sqrt{2})j$

The correct answer is D.

3 0

4 years ago