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3 years ago

Ms. Hernandez writes this expression on the board.

Mathematics

1 answer:

Ahat [919]3 years ago

7 0

I need a point to this question in order to answer it

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Please help quick! 4 3/5 - 2 4/5

VARVARA [1.3K]

Answer:

$\frac{9}{5} \\ \\ OR\\ \\ 1\frac{4}{5}$

Hope this helped. A brainliest would be very much appreciated. (I need 4 brainliest so I can level up) :)

3 0

2 years ago

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Are they correct? Why or why not? answer correctly thank you 10 points.

Kitty [74]

Answer:

No.

Step-by-step explanation:

the system of equations provided in the condition consists of two linear equations in slope-interception form. The slope of the 1st equation is equal to the slope of 2d equation. It means, the lines are parallel. In other words, no solution of this system, they are not correct.

Answer: no.

8 0

2 years ago

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A study is performed in a large southern town to determine whether the average weekly grocery bill per four-person family in the

OLga [1]

Answer:

The average weekly grocery bill per four-person family in the town is significantly different from the national average.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $100

Sample mean, $\bar{x}$ = $103.23

Sample size, n = 25

Alpha, α = 0.05

Sample standard deviation, s = $8.82

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 100\text{ dollars}\\H_A: \mu \neq 100\text{ dollars}$

We use Two-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{103.23- 100}{\frac{8.82}{\sqrt{25}} } = 1.831$

Now,

$t_{critical} \text{ at 0.05 level of significance, 24 degree of freedom } = \pm 2.063$

Since,

$t_{stat} < t_{critical}$

We accept the null hypothesis.

We accept the null hypothesis and determine that the average weekly grocery bill per four-person family in the town is significantly same to the national average.

4 0

3 years ago

Read 2 more answers

a dessert recipe calls for 2 and 1/2 cups of milk and makes 5 servings how many cups of milk are needed to make for 8 servings s

melomori [17]

It would take 4 cups of milk, how I got my answer.

I first needed to know out how much milk was in 1 serving so I divided, 2.5÷5=0.5, so then I multiplied, 0.5×3=1.5, the reason I done this was because there are 3 more servings than the last, then I added, 2.5+1.5=4.

I hope this helps!

7 0

4 years ago

(01.02 LC)Which of the following describes a function of a satellite? Helps scientists track weather Measures latitude and longi

Lana71 [14]

Answer:

A. Helps scientists track weather

Step-by-step explanation:

Have you seen those weather guys on TV showing clouds and stuff, they got them via satellite or at least if there are animations, those are possible because they can see what the clouds or other stuff look like via satellites.

4 0

3 years ago

Ms. Hernandez writes this expression on the board. ​

Ms. Hernandez writes this expression on the board.