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3 years ago

Label the sides and name them also explain how you know

Mathematics

1 answer:

Sveta_85 [38]3 years ago

8 0

uh B and A is a 90* angle and C is an obtuse :)

look it up

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NO LINKS OR ANSWERING WHAT YOU DON'T KNOW?

snow_lady [41]

Answer:

1. D. 1

2. B. y=a³/x

3. A. y=1/x

Step-by-step explanation:

too long to give te explanations but they're there in the attachments

7 0

3 years ago

1/2 divided by 3/5 equals what

Scrat [10]

3/2 improper fraction

6 0

3 years ago

Thank you so much!!!

vova2212 [387]

Answer:

$\fbox{\begin{minipage}{16em}Option D: y = (4/7)x + 8 is correct\end{minipage}}$

Step-by-step explanation:

(1) A typical form of equation of a line is:

$y = Mx + b$

with, $M$ is slope and $b$ is y-intercept.

(2) Another straight line has equation in form of:

$y = Nx + c$

with $N$ is slope and $c$ is y-intercept

(3) If these two lines are perpendicular, according to the property of two perpendicular lines on the two-dimensional plane, we have:

$M$ x $N$ = -1

(4) Transform the given equation of original line into typical form:

$7x + 4y = -24\\$

<=> $4y = -7x - 24$

<=> $y = (\frac{-7}{4})x - \frac{24}{4}$

<=> $y = (\frac{-7}{4})x - 6$

=> $M = \frac{-7}{4}$

=> $N = \frac{-1}{M} = \frac{-1}{\frac{-7}{4} } = \frac{-4}{-7} = \frac{4}{7}$

=> Option D: $y = (\frac{4}{7})x + 8$ is correct (Slope = $\frac{4}{7}$ )

Hope this helps!

4 0

3 years ago

A bank wishes to invest a $100, 000 trust fund in three sources: bonds paying 8%; certificates of deposit paying 7%; and first m

Nuetrik [128]

Answer:

It is not possible to make the investment under the given conditions.

Step-by-step explanation:

Let x, y and z be the amounts invested in bonds, certificates of deposit and mortgages respectively.

1st equation

“A bank wishes to invest a $100, 000 trust fund in three sources”

x + y + z = 100,000

2nd equation

“The bank wishes to realize an $8, 000, annual income from the investment and bonds paying 8%; certificates of deposit paying 7%; and first mortgages paying 10%”

0.8x + 0.7y + 0.1z = 8,000

3rd equation

“the total amount invested in bonds and certificates of deposit must be triple the amount invested in mortgages”

x+y = 3z

and we have a linear system of 3 equations with 3 unknowns

x + y + z = 100,000

0.8x + 0.7y + 0.1z = 8,000

x + y -3z = 0

This system has a unique solution given by

x = -470,000

y = 545,000

z = 25,000

Since x is negative, we deduct there is no way to do such an investment.

7 0

4 years ago

Lesson plan objectives about attribute blocks

Andreyy89

Answer:

is this the question? or just a statement. Can you ask the question clearly?

5 0

3 years ago

Label the sides and name them also explain how you know​

Label the sides and name them also explain how you know