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Lostsunrise [7]
3 years ago
13

Can someone help please !!??

Mathematics
1 answer:
ser-zykov [4K]3 years ago
3 0

Answer:

20

Step-by-step explanation:

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Evaluate the expression when a=3 and b= 19.<br> b-4a
Sphinxa [80]

Answer:

7

Step-by-step explanation:

19 - 4(3) = 19 - 12 = 7

please give me a brainiest

3 0
3 years ago
Calculate the slope of a line that passes through the points (-4,7) and (-1,3)
zmey [24]

Answer:

The answer is

-  \frac{4}{3}  \\

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

m =  \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-4,7) and (-1,3)

We have

m =  \frac{3 - 7}{ - 1 -  - 4}  =  \frac{ - 4}{ - 1 + 4}  =   -  \frac{4}{3}  \\

We have the final answer as

-  \frac{4}{3}  \\

Hope this helps you

4 0
3 years ago
Matilda needs at least $112 to buy a new dress. She has already saved $40. She earns $9 an hour babysitting. What would be the e
bonufazy [111]

Answer: 9x+40=112

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find the rational zeros of the polynomial function, f(x)= 4x^3-8x^2-19x-7
Dima020 [189]

Answer:

The rational zero of the polynomial are \pm \frac{7}{4}, \pm \frac{1}{4},\pm \frac{7}{2},\pm \frac{1}{2},\pm 7,\pm 1  .  

Step-by-step explanation:

Given polynomial as :

f(x) = 4 x³ - 8 x² - 19 x - 7

Now the ration zero can be find as

\dfrac{\textrm factor of P}{\textrm factor Q} ,

where P is the constant term

And Q is the coefficient of the highest polynomial

So, From given polynomial ,  P = -7 , Q = 4

Now , \dfrac{\textrm factor of \pm P}{\textrm factor of \pm Q}

I.e  \dfrac{\textrm factor of \pm P}{\textrm factor of \pm Q} = \frac{\pm 7 , \pm 1}{\pm 4 ,\pm 2,\pm 1 }

Or, The rational zero are \pm \frac{7}{4}, \pm \frac{1}{4},\pm \frac{7}{2},\pm \frac{1}{2},\pm 7,\pm 1

Hence The rational zero of the polynomial are \pm \frac{7}{4}, \pm \frac{1}{4},\pm \frac{7}{2},\pm \frac{1}{2},\pm 7,\pm 1  .  Answer

7 0
4 years ago
Dintre 55,8 milioane de francezi 62% merg vara in vacanta iar din acestia 44%merg la mare .Cati francezi merg la mare ?
Mashcka [7]
I dont know that language
5 0
4 years ago
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