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4 years ago

How can u use a number line to find the sum of -4 and 6

Mathematics

2 answers:

MrRa [10]4 years ago

8 0

Look at -4 on a number line then you add 6 spaces to the right which would get you 2

sdas [7]4 years ago

5 0

Find -4 on the number line.

Go to the right 6 place values (+6)

You will find your answer

-4 (+6) = 2

2 is your answer

hope this helps

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The heights of women aged 20 – 29 in the United States are approximately Normal with mean 64.2 inches and standard deviation 2.8

Alenkinab [10]

Answer:

a) 0.64

b) -1.13

Step-by-step explanation:

We are given the following information in the question:

Women:

Mean, μ = 64.2 inches

Standard Deviation, σ = 2.8 inches

We are given that the distribution of heights of women is a bell shaped distribution that is a normal distribution.

Men:

Mean, μ = 69.4 inches

Standard Deviation, σ = 3.0 inches

We are given that the distribution of heights of men is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

5.5 feet = 66 inches

a) z‑score for a woman 5.5 feet tall

$x = 66\\\\\Rightqrrow z = \displaystyle\frac{66 - 64.2}{2.8} = 0.64$

b) z‑score for a man 5.5 feet tall

$x = 66\\\\\Rightqrrow z = \displaystyle\frac{66 - 69.4}{3.0} = -1.13$

4 0

3 years ago

Lena collects antique spoons. The line plot shows the length of the spoons in her collection. If she lines up all of her spoons

slavikrds [6]

Answer:

See the figure attached with the complete question, including the line plot.

<u>The size of the middle spoon is 4/4 feet = 1 feet.</u>

Explanation:

Each mark on the line plot represents a spoon and the position on the line indicates its length,

There are two marks over the the lenght 1/4, thus there are two spoons with that length,

One spoon with length 2/4,

One spoon with length 3/4,

Four spoons with length 4/4, and

One spoon with length 5/4

Those are in total 9 spoons. Thus, if she lines up all of her spoons in order size, the fifth spoon is the middle spoon, and its size is 4/4 feet.

6 0

3 years ago

Question 16 (5 points)

enyata [817]

Your answer should be 42

4 0

4 years ago

Read 2 more answers

Proving the Single Opposite Side Pair Theorem

omeli [17]

9514 1404 393

Explanation:

1. AD ≅ BC, AD ║ BC . . . . given

2. ∠DAC ≅ ∠BCA . . . . alternate interior angles theorem

3. AC ≅AC . . . . reflexive property

4. ΔDAC ≅ ΔBCA . . . . SAS postulate

5. AB ≅ CD, ∠BAC ≅ ∠DCA . . . . CPCTC

6. AB ║ CD . . . . converse of alternate interior angles theorem

7. ABCD is a parallelogram . . . . definition of a parallelogram (has 2 pairs of parallel & congruent sides)

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We don't know what your tiles/choices are for statements or reasons. We have shown the triangles are congruent, so their corresponding parts (sides/angles) are congruent. That lets us claim opposite sides are congruent and parallel. YMMV

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3 years ago

(WILL GIVE BRAINLYIST IF ANSWER IS RIGHT!)

d1i1m1o1n [39]

Answer:

The answer is 1 and 4

Step-by-step explanation:

.25 x 4y = Y

36 divided by 4 = 9

6 0

3 years ago