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kkurt [141]
2 years ago
12

Find x, to the nearest hundredth.​

Mathematics
1 answer:
Vitek1552 [10]2 years ago
3 0

Answer:

Step-by-step explanation:

cos 44° = \frac{x}{14}

x = 14 × cos 44°

x ≈ 10.07 units

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Elena went on a 6-mile walk. She completed the first half of the walk 1 mi/h faster than usual and the second half of the walk 2
xxTIMURxx [149]

Answer:

Her usual rate is 0.8333 miles per hour.

Step-by-step explanation:

The velocity formula is given by:

v = \frac{d}{t}

In which d is the distance and t is the time.

She completed the first half of the walk 1 mi/h faster than usual

Her usual rate is v. 1mph faster is v + 1.

The second half of the walk 2 mi/h slower than the first half.

The first half is v + 1.

2mph slower is v + 1 - 2 = v - 1. Then

Total rate:

7.2 hours, and 6 miles. So

One half is v+1 and the other is v - 1. This is why each is multiplied by 0.5.

0.5(v + 1) + 0.5(v - 1) = \frac{6}{7.2}

0.5v + 0.5 + 0.5v - 0.5 = 0.8333

v = 0.8333

Her usual rate is 0.8333 miles per hour.

8 0
3 years ago
I need help to evaluate the function for the given value of x for y=2×5x; x=2
mars1129 [50]

Answer:

y= 20

Step-by-step explanation:

y=2*5x

Let x =2

y = 2*5 (2)

y = 10*2

y= 20

8 0
3 years ago
The prime factorization of a number is 32 • 5 • 11. What is<br> the number?
Lyrx [107]
160 is the number i believe, hope it helps
3 0
3 years ago
Read 2 more answers
-20 - 4y when y = -3 need help asap
andreev551 [17]
Since y=-3 you need to set up the equation
-20-(-3)
And all you have to do is simplify
So your answer will be
-17

Hope this helped :)
Have a great day
8 0
3 years ago
Researchers want to investigate if students retain more information if it printed on blue paper rather than white paper. They re
Debora [2.8K]

Answer:

Stratified design with color of paper as the blocks

Step-by-step explanation:

The experimental design that this question uses is the stratified design with color of paper as the blocks

A stratified design is one where the population has been divided into strata that are homogeneous. A good number of participants would then be picked for each of the stratum. The homogeneous strata are also known as the blocks and here in this question we have color of paper as the block here.

The students are of different school levels, elementary, high school and middle school. Each of these levels have 100 students. The students in each levels are halved and each half is randomly assigned information on either a white paper or a blue paper.

5 0
3 years ago
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