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Nataliya [291]
3 years ago
11

Help with maths questions please

Mathematics
2 answers:
uysha [10]3 years ago
4 0

Answer for this is Option B

.

dolphi86 [110]3 years ago
3 0
Option B hope this helps
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if you are asked to solve a system of equations in which there is no linear equation to start with, you can sometimes begin by i
DENIUS [597]

<u>Answer:</u>

The correct answer option is: True.

<u>Step-by-step explanation:</u>

Its true that if there is no linear equation to start with, you can isolate and substitute a variable that is squared in both the equation.

For example, for the given non linear equation, start by dividing both sides by coefficient of the variable.

Once you do that and isolate a variable, continue solving by substituting that variable into the other equation.

5 0
4 years ago
-79 = 7x + 3(4x - 1)<br><br> Help
Dmitry [639]

Answer:

x = - 4

Step-by-step explanation:

-79 = 7x + 3(4x - 1)

-79 = 7x + 12x - 3                      Distribute 3 to the paranthesis

-79 = 19x - 3                              Add like terms

-76 = 19x                                   Add 3 to both sides

- 4 = x                                          Divide 19 to both sides

7 0
3 years ago
Which logarithmic graph can be used to approximate the value of y in the equation 4^y=8
WINSTONCH [101]
\bf \textit{exponential form of a logarithm}\\\\&#10;log_{{  a}}{{  b}}=y \implies {{  a}}^y={{  b}}\qquad\qquad &#10;%  exponential notation 2nd form&#10;{{  a}}^y={{  b}}\implies log_{{  a}}{{  b}}=y &#10;\\\\&#10;-------------------------------\\\\

\bf 4^y=8\implies log_4(8)=y\qquad &#10;\begin{cases}&#10;4=2^2\\&#10;8=2^3&#10;\end{cases}\implies (2^2)^y=2^3&#10;\\\\\\&#10;2^{2y}=2^3\impliedby \textit{since the bases are the same, so are the exponents}&#10;\\\\\\&#10;2y=3\implies y=\cfrac{3}{2}\implies y=1\frac{1}{2}\quad thus\quad &#10;\begin{cases}&#10;x=8\\&#10;y=\frac{3}{2}&#10;\end{cases}

so.. check your graphs
7 0
4 years ago
The height of a prism,cylinder, pyramid, or cone is always_ to the base
m_a_m_a [10]

Answer:

The height of a prism, cylinder, pyramid, or cone is from base to base?? Except for pyramid.. for pyramid it is from the center of the base to the point at the top of the pyramid I guess.

Step-by-step explanation:

Hope that helped!

6 0
3 years ago
-0.4=g/3-0.9 solve for g
Degger [83]

Answer:

3/2

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
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