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IgorC [24]
3 years ago
5

2m² + 4m - 70Factor and please show steps ​

Mathematics
1 answer:
Nikolay [14]3 years ago
6 0

Answer:

5 / -7

Step-by-step explanation:

2m^{2} + 14m - 10m - 70\\2m ( m + 7 ) - 10 ( 2m - 7 ) \\therefore,  ( m + 7 ) ( 2m -  10) \\or M = 5 / -7

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Calculate the value of each expression:<br> (-8)•(-2/3)<br> SHOW YOUR WORK:
inna [77]

Answer: \frac{16}{3}

Step-by-step explanation:

For this exercise it is important to remember  the multiplication of signs:

(+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-

In this case, given the following expression:

(-8)(-\frac{2}{3})

You can idenfity that both factors are negative. Then, the product (The result of the multiplication) will be positive.

Then, in order to get the product, you need to multiply the numerator of the fraction by -8. So, you get:

 \frac{(-2)(-8)}{3}=\frac{16}{3}

You can notice that the numerator and the denominator of the fraction obtained cannot be divided by the same number; therefore, the fraction cannot be simplified.

3 0
3 years ago
Each day the 29 people in Ms.Gills band class play music for 34 minutes.what would be the best estimate for the amount of music
poizon [28]

234 bc you they play 34 mins in one day and just times 34 by 7 and it will get ur answer.

6 0
2 years ago
Read 2 more answers
The graph of f is shown. find and interpret f(45).
Ket [755]

The function represents the number of accidents (f(x)) per 50 million miles driven as a function of the driver's age (x).

f(x)=0.4x^2-36x+1000

f(45) indicates that you have to find the value of f(x) when x=45, to do so replace the equation of the function with the value of x and solve for f(x)

\begin{gathered} f(x)=0.4x^2-36x+1000 \\ f(45)=0.4(45)^2-36\cdot45+1000 \\ f(45)=0.4\cdot2025-1620+1000 \\ f(45)=810-1620+1000 \\ f(45)=190 \end{gathered}

For x=45 years f(x)=190

f(45)=190; This value indicates that 45-year-old drivers had 190 accidents per 50 million miles driven.

8 0
1 year ago
Which expression is equivalent to 5(2 + 7)?
bogdanovich [222]
By using distributive property we get
5(2)+5(7)
Therefore you answer is D. 5(2)+5(7)
3 0
2 years ago
Read 2 more answers
Find the percent change from 72 to 80.
LenaWriter [7]
11.1111 I think this is it
3 0
3 years ago
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