2 years ago

I need help with this question

Mathematics

2 answers:

leonid [27]2 years ago

8 0

The answer must be G, after calculating, I got 5.45

Rama09 [41]2 years ago

6 0

Answer:

Step-by-step explanation:

An integer is a whole number. Round each of your answers to the nearest tenth (for the 5's, you round up), and you see that choice G, 5.5, can be divided by 1.1 to equal 5.

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Compare the fractions using the LCM. <br>3/5 and 1/4

mina [271]

Answer:

Step-by-step explanation:

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2 years ago

In a metal fabrication process, metal rods are produced to a specified target length of 15 feet. Suppose that the lengths are n

Leto [7]

Answer:

95% Confidence interval: (14.4537 ,15.1463)

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 15 feet

Sample mean, $\bar{x}$ = 14.8 feet

Sample size, n = 16

Alpha, α = 0.05

Sample standard deviation, σ = 0.65 feet

Degree of freedom = n - 1 = 15

95% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 15 and}~\alpha_{0.05} = \pm 2.1314$

$14.8 \pm 2.1314(\dfrac{0.65}{\sqrt{16}} ) \\\\= 14.8 \pm 0.3463 = (14.4537 ,15.1463)$

is the required confidence interval for the true mean length of rods.

3 0

2 years ago

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The ages of two brothers are in the ratio two to three, but in eight years, the ratio of their ages will be three to four. What

grigory [225]

3(3x+8)=4(2x+8)
9x+24=8x+32
x=8

2(8)=16
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that means that the younger brother is 16 years old

8 0

2 years ago

Can somebody help me I will mark brainliest

bixtya [17]

Answer:

Hope this helps

Step-by-step explanation:

a) <e and <c

b) <c and <b

c) <c and <a

d) <c and <b, <c and <d, <d and <e, <e and <a, <a and <b

e) c = 30, a = 90, b= 60, e= 30, d= 150

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2 years ago

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Dr. Green has to multiply the weight of the team’s bug spray bottles, 7 x 90 grams. To solve this, he writes out the equation 7

Dominik [7]

It works because 7 x 9 x 10 is the same thing as 7 x 90, since 9 x 10 is just 90. So basically he is just writing more but the answer will still be the same.

4 0

2 years ago