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3 years ago

10

This question is hard I don't get it

1 answer:

Sphinxa [80]3 years ago

8 0

That is coordinates, when I got that in school I had to do up a table abt it and do a graph

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there are 39 members in a marching band for a food drive each member must bring 3 cans of fruit and 5 cans of soup how many cans

bonufazy [111]

The Answer is 312 -- this is because, as we want know the total amount of cans, you add 5 + 3 which gives you 8.yoy can then times that by the members (39) to give you 312 which is the total

7 0

3 years ago

Round up to the nearest hundredth

Shalnov [3]

$x^2+3x-5=0\\\\a=1;\ b=3;\ c=-5\\\\b^2-4ac=3^2-4\cdot1\cdot(-5)=9+20=29\\\\x_1=\dfrac{-b-\sqrt{b^2-4ac}}{2a};\ x_2=\dfrac{-b+\sqrt{b^2-4ac}}{2a}\\\\x_1=\dfrac{-3-\sqrt{29}}{2\cdot1}=\dfrac{-3-\sqrt{29}}{2}\approx-4.19\\\\x_2=\dfrac{-3+\sqrt{29}}{2\cdot1}=\dfrac{-3+\sqrt{29}}{2}\approx1.19$

5 0

3 years ago

Each day Marisa runs the same distance. She ran 35 miles in the last 5 days. What is the unit rate?

Fudgin [204]

Answer:

7 miles

Step-by-step explanation:

As, we will take unit rate as "x"

So, for one day = x distance

For 5 days = 5(x)

For 5 days she covered 35 miles

So therefore,

5(x) = 35 miles

X= 35/5

X=7 miles

For a day= 7 miles are covered

4 0

3 years ago

If a triangle has angle measures of 114°, 25° and 41°, it can be classified as?

Talja [164]

Answer:

obtuse

Step-by-step explanation:

as one angle is bigger than 90°

5 0

3 years ago

Read 2 more answers

A family is relocating from St. Louis, Missouri, to California. Due to an increasing inventory of houses in St. Louis, it is tak

Nostrana [21]

Answer:

The lower bound of the 95% confidence interval for the mean sale time for all homes in the neighborhood is of 160 days.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.025 = 0.975$ , so Z = 1.96.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.96\frac{72}{\sqrt{22}} = 30$

The lower end of the interval is the sample mean subtracted by M. So it is 190 - 30 = 160 days

The lower bound of the 95% confidence interval for the mean sale time for all homes in the neighborhood is of 160 days.

5 0

2 years ago