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IrinaK [193]
3 years ago
11

This morning, Manny took a history test. There were 50 multiple-choice problems on the test

Mathematics
2 answers:
Rasek [7]3 years ago
4 0

Answer:

5 questions were answered correctly

Step-by-step explanation:

10% of 50 is 5. So that means 5 questions were answered correctly.

Maurinko [17]3 years ago
3 0

Answer:

He got 5 right

Step-by-step explanation:

10% = 0.1

50(0.1) = 5

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Solve for x in the picture please
Nutka1998 [239]

Answer: x=1

Step-by-step explanation:

In order to find the value of "x", it is important to remember that:

Tangent\ chord\ angle=\frac{1}{2}(Intercepted\ arc)

 We can identify in the figure that:

Tangent\ chord\ angle=(43x)\°\\\\Intercepted\ arc=AB

Then:

43x=\frac{1}{2}AB

Solving for AB:

2(43x)=AB\\\\AB=86x

Now, since there are 360° in a circle, we know that:

AB+(272x+2)=360

Then we can substitute AB=86x into AB+(272x+2)=360\° and solve for "x". This is:

(86x)+(272x+2)=360\\\\358x=360-2\\\\x=\frac{358}{358}\\\\x=1

8 0
3 years ago
Jill planted two flowers in her garden. The first flower is 2 inches tall, and it is growing 2.25 inches each week. The second p
Nadya [2.5K]

Answer:it will take the two plants 6 weeks before the heights are the same

Step-by-step explanation:

Jill planted two flowers in her garden.

The first flower is 2 inches tall, and it is growing 2.25 inches each week. Since the growth rate is in an arithmetic progression, we will apply the formula for finding the nth term of the series

Tn = a + (n - 1)d

Tn = the nth height of the first flower

a = the initial height of the first flower

d = the common difference in height of the first flower weekly

n = number of weeks

From the information given,

For the first flower,

a = 2

d = 2.25

Tn ?

n ?

Tn = 2 + (n - 1)2.25

For the second flower,

a = 5.75

d = 1.5

Tn ?

n ?

Tn = 5.75 + (n - 1)1.5

To determine the number of weeks that it will take until the two plants are the same height, we would equate Tn for both flowers. It becomes

2 + (n - 1)2.25 = 5.75 + (n - 1)1.5

2 + 2.25n - 2.25 = 5.75 + 1.5n - 1.5

Collecting like terms

2.25n - 1.5n = 5.75 - 1.5 - 2 + 2.25

0.75n = 4.5

n = 4.5/0.75

n = 6 weeks

4 0
2 years ago
For the function f(x)=x2-4, fins the value of f(x) when x=6
Snowcat [4.5K]

Answer:

32

Step-by-step explanation:

Substitute x = 6 into f(x), that is

f(6) = 6² - 4 = 36 - 4 = 32

5 0
3 years ago
A recipe for brownies calls for 4 cups of flour to 6 cups of sugar how many cups of sugar per cup of flour does the recipe requi
Andrews [41]

So, we have 4 cups of flour and 6 cups of sugar and we need to know how many cups of sugar per cup of flour does the recipe require. Because it is requested to know how many cups of sugar per cup of flour does the recipe require, we need to divide the amount of flour and sugar by the amount of flour, and we will know what we need to know.

4 cups of flour / 4 = 1 cup flour

6 cups of sugar / 4 = 6/4 = 3/2 = 1 1/2 cups of sugar per cup of flour is the solution

6 0
3 years ago
A store uses the expression -2p+ 50 to model the number of backpacks it sells per day, where the price, p, can be anywhere
Ivan

Answer:

B: $12.00 per backpack gives the maximum revenue; the maximum revenue is $312.00.

Step-by-step explanation:

3 0
3 years ago
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