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TEA [102]
3 years ago
15

What is the value of expression?

Mathematics
1 answer:
kolezko [41]3 years ago
4 0
6^{-7}\cdot6^4=6^{-7+4}=6^{-3}
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B) 2x² - 4x + 3 = 0<br> a) x² + 3x – 10 = 0
kozerog [31]

Answer:

a. x = 2 , x = -5

b. no real roots

Step-by-step explanation:

<u>a. x² + 3x – 10</u>

= x² - 2x + 5x - 10

= x (x²/x - 2x/x) + 5 (5x/5 - 2*5/5)

= (x - 2) (x + 5)

x - 2 = 0                            x + 5 = 0

 + 2    +2                             -5     -5

--------------                         ---------------

x = 2                                   x = -5

x = 2 , x = -5

<u>b. 2x² - 4x + 3 </u>

This can't be solved because the equation has no real roots, and also the discriminant is negative.

3 0
2 years ago
Let g(x) = 2x2 - 11x. Find g(-1).<br> A) -13 Eliminate <br> B) -9 <br> C) 0 <br> D) 13
worty [1.4K]

Solution

g(x) = 2x^{2} - 11x

Plugging in x = -1 in g(x), we get

g(-1) = 2(-1)^{2} - 11(-1)

Now we have to simplify it.

g(-1) = 2*1 + 11

g(-1) = 2 + 11

g(-1) = 13

So the answer is D) 13.


Thank you. :)

3 0
3 years ago
Find the perimeter of the following figure.<br> ​a= 12<br> b=5<br> c=?<br> its pythagorean theorem
mrs_skeptik [129]

Answer:

c=13 Perimeter=30

Step-by-step explanation:

c is equal to 13 so add all the sides together and you get 30

5 0
3 years ago
Read 2 more answers
It was John's birthday, 1/2 of his cupcakes were choco lava, the other half was strawberry. There were 10 strawberry cupcakes. R
igomit [66]
If there were 10 strawberry cupcakes then chocolate would have the same number as 10= 1/2. Then 2/4 can be simplified to 1/2 meaning that Rick are 1/2 of 10 and 1/10 is just one out of the 10 strawberry cupcakes.

Rick ate 5 Chocolate Cupcakes

Steward are 1 Strawberry Cupcake
4 0
2 years ago
Read 2 more answers
You have a map of an area in France. The scale used is 2cm:8km. You want to ride to a national park. The park is shown on the ma
antiseptic1488 [7]
Every cm on the map = 8/2 = 4 km

so 16 cm is equivalent to 4*16  = 64 km Answer
3 0
3 years ago
Read 2 more answers
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