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3 years ago

Solve with steps please. Urgenttt

Mathematics

1 answer:

aleksklad [387]3 years ago

4 0

The answer is -48.
You have to plug in -6 where x is.

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4 questions, if you dont know all of them please just help with at least 1. i have crossed out the ones i dont need help with. h

Bingel [31]

Answer:

the part you crossed out makes it look like a person's eyes and eye brows lol

Step-by-step explanation:

8 0

4 years ago

g Determine the point estimate of the population mean and margin of error for the confidence interval. Lower bound is 21, upper

nata0808 [166]

Answer: The point estimate of the population mean is 23. The margin of error for the confidence interval is 2.

Step-by-step explanation:

The confidence interval for the mean is of the form is given by :-

$\overline{x}-\text{error}\leq\mu\leq\overline{x}+\text{error}$

Given : Lower bound: $\overline{x}-\text{error}=21$

Upper bound : $\overline{x}+\text{error}= 25$

Then ,the sum of lower and upper bound will be :-

$2\overline{x}=21+25=46\\\\\Rightarrow\ \overline{x}=23$

Since $\overline{x}-\text{error}=21$

$\Rightarrow\ \text{Error}=\overline{x}-21=23-21=2$

Hence, The point estimate of the population mean is 23. The margin of error for the confidence interval is 2.

4 0

4 years ago

Solve for x.

o-na [289]

Answer:

x = -9

Step-by-step explanation:

Given:

BC = x + 19

ST = x + 29

Required:

Value of x

Solution:

Midsegment theorem states that the midsegment of a triangle = ½ of the length of its third side

Thus:

BC = ½(ST)

Substitute

x + 19 = ½(x + 29)

Multiply both sides by 2

2(x + 19) = x + 29

2x + 38 = x + 29

Collect like terms

2x - x = -38 + 29

x = -9

3 0

3 years ago

AnnZ [28]

I think the equation is y=-2x+1

8 0

3 years ago

Darcy’s house is 6 times as far from school as her friend’s house. If her friend’s house is 3/4 mile from school, how many miles

KIM [24]

4.5 miles

6*3/4 = 18/4
18/4 = 4.5

3 0

4 years ago