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3 years ago

Pls help will give brainliest

Mathematics

2 answers:

tia_tia [17]3 years ago

4 0

Answer:

Step-by-step explanation:

i dont think were really supposed to be answering something like this... you literally posted a picture of your test...

Firdavs [7]3 years ago

3 0

1st one is 3/17
2nd is 4

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Finding the value of the x

natali 33 [55]

Answer: do a proportion

Step-by-step explanation:

So it would be a number over a number and equals X over a number.

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3 years ago

Combine the like terms of the expression (8 + 6x) + (-4 + 9c). Explain how you simplified the expression in each step. * pls hel

Delicious77 [7]

Answer: 6x+9c+4

Step-by-step explanation: (8 + 6x) + (-4 + 9c)

8+6x-4+9c

6x+9c+8-4

6x+9c+4

8 0

3 years ago

6. Evaluate the following expression: 10 + 4(6-2)<br> А. 56<br> B. 82<br> С. 18<br> D. 26

irakobra [83]

Answer:

D. 26

Step-by-step explanation:

$10+4(6-2)\\10+4(4)\\10+16\\26$

7 0

2 years ago

Read 2 more answers

What is the first term in a geometric sequence if the common ratio is − 2 and the sum of the first six terms is −105?

Serggg [28]

$\bf \qquad \qquad \textit{sum of a finite geometric sequence}
\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
r=-2\\
n=6\\
S_6=-105
\end{cases}$

$\bf -105=a_1\left( \cfrac{1-(-2)^6}{1-(-2)} \right)\implies -105=a_1\left( \cfrac{1-(64)}{1+2} \right)
\\\\\\
-105=a_1\left( \cfrac{-63}{3} \right)\implies -105=a_1(-21)
\\\\\\
\cfrac{-105}{-21}=a_1\implies 5=a_1$

7 0

3 years ago

2 planes fly in opposite directions. One travels 475 mi/h and the other 525 mi/h . How long will it take before they are 6,000 m

pychu [463]

The speed at which they are moving apart = 475 + 525 = 1000 mi/h

Time = distance / speed
= 6000 / 1000 = 6 hours

The answer is 6 hours.

8 0

2 years ago