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GaryK [48]
2 years ago
14

Dallas was told to study 4 hours a week by his mother. Dallas studied

Mathematics
1 answer:
vfiekz [6]2 years ago
3 0

Answer:

16 hours

Step-by-step explanation:

14 hours + 1 hour + 1 hour = 16 hours

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Find the measures of two complementary angles, ÐA and ÐB, if mÐA = (7x + 4)° and mÐB = (4x + 9)°. Measure of angle A = ... Measu
Westkost [7]

Answer:

The measure of angle A is 53 degrees

The measure of angle B is 37 degrees

Step-by-step explanation:

Here in this question, we are interested in calculating the measure of the two angle.

When how angles are complementary, it means the sum of both equals 90 degrees

mathematically ;

(7x + 4) + (4x + 9) = 90

7x + 4x + 4 + 9 = 90

11x + 13 = 90

11x = 90-13

11x = 77

x = 77/11 = 7

The measure of angle A = 7x + 4 = 7(7) + 4 = 49 + 4 = 53 degrees

The measure of B = 4x + 9 = 4(7) + 9 = 28 + 9 = 37 degrees

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3 years ago
What is the side length? Please help, thanks
azamat

Answer:

if Area = 169/225

then

S = √(169/225)

S = √169/√225

S = 13/15

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3 years ago
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lord [1]

Answer:

what are the options? I'll say it in the comments

7 0
3 years ago
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The heights in cm of some pupils are
tatuchka [14]

The median is a halfway point in the set of data.

List the numbers in order from smallest to largest:

111, 129, 144, 149, 152, 162, 166, 171

Because there are an even number of values in the data set, find the two middle numbers, add them together and then divide by 2:

Median = ( 149 + 152 ) /2

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3 years ago
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Answer:

3x+3

Step-by-step explanation:

add up x-3,x+6 and x

combine like terms

x+x+x-3+6=3x+3

4 0
3 years ago
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