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4 years ago

Multiple choice please answer please

Mathematics

2 answers:

timofeeve [1]4 years ago

8 0

Answer:

Hey mate! Here is the answer to your question. Hope it helps.

avanturin [10]4 years ago

5 0

I got 180 because the triangle is 180

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Due to delays, a company had to extend a project from 109 days to 123 days. What was the percentage increase in time to complete

Bumek [7]

Answer:

1% or 1.1%

I'm 60% sure

Step-by-step explanation:

So what i did was divide 123 by 109

6 0

3 years ago

Over 6 months, Fiona used her online banking account to pay a total of $274.50 for her cell phone services. Her cell phone servi

pentagon [3]

Answer:

45.75

Step-by-step explanation:

you divided 274.50 by 6 and get the answer

4 0

3 years ago

A fitness center charges $3 per visit plus a monthly fee of 30$. How much would it cost in one month if Ella has 18 visits

e-lub [12.9K]

since she had 18 visits, 3*18=54

54+30=84

5 0

4 years ago

Read 2 more answers

In a solar system, two comets pass near the sun, which is located at the origin. Comet E is modeled by quantity y plus 16 end qu

Leya [2.2K]

Explanation:

The equation of comet E is given below as

$\frac{(y+16)^2}{400}+\frac{x^2}{144}=1$

The equation of comet H is modelled below as

$\frac{(y+13)^2}{144}-\frac{x^2}{25}=1$

Given, that the Sun is located at the origin.

This is an equation of an ellipse. So, the path traveled by Comet e is an elliptic path.

Comparing with the Standard equation of ellipse: below,we will have

$\frac{(y-k)^2}{b^2}+\frac{(x-h)^2}{a^2}$

Whise center is

$\begin{gathered} center=(h,k) \\ vertices=(h\pm a,0) \end{gathered}$

By comparing coefficient, we will have

$\begin{gathered} a^2=144 \\ a=12 \\ b^2=400 \\ b=20 \\ k=-16 \\ h=0 \\ (h,k)=(0,-16) \end{gathered}$

Hence,

The vertex of comet E will be

$\begin{gathered} (h\pm a,0) \\ (0+12,0),(0-12,0) \\ (12,0),(-12,0) \end{gathered}$

The vertex of comet E is

$(12,0),(-12,0)$

Part C:

It is the foci forboth comets

$\begin{gathered} cometE: \\ c=\sqrt{b^2-a^2} \\ c=\sqrt{400-144} \\ c=\sqrt{256} \\ c=16 \\ \\ For\text{ comet F:} \\ c=\sqrt{a^2-b^2} \\ c=\sqrt{144+25} \\ c=\sqrt{169} \\ c=13 \end{gathered}$

Hence,

The foci will be

$\begin{gathered} (16\pm16,0) \\ cometE \\ (0,0),(32,0) \\ cometF: \\ (13\pm13,0) \\ (0,0),(26,0) \end{gathered}$

5 0

1 year ago

Which equations have 8 as a solution?

Alexandra [31]

Which equations have 8 as a solution?
Answers:
15 - n = 7
-15 -15

-n = -8
n = 8
4n = 32
n = 8

Select all the equations that have 8 as a solution.
Answers:
A and C
Explanation is above.

Hope this helps!

4 0

3 years ago

Read 2 more answers