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Stells [14]
3 years ago
10

Math help pls thank u

Mathematics
1 answer:
ELEN [110]3 years ago
6 0
(8) =b

explaintion is : 3 seven times is 21
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Combine the like terms to create an equivalent expression. 7k - 3k + 11
Semenov [28]
I believe the answer is 4k + 11
6 0
3 years ago
Given the equation 4x2 − 8x + 20 = 0, what are the values of h and k when the equation is written in vertex form a(x − h)2 + k =
GenaCL600 [577]

Answer:

The correct option is:

h = 1, k = 16

Step-by-step explanation:

y=4x^2-8x+20 =0

It is a quadratic formula in standard form:

ax^2+bx+c

where a = 4 , b = -8 and c=20

The vertex form is:

a(x − h)2 + k = 0

h is the axis of symmetry and (h,k) is the vertex.

Calculate h according to the following formula:

h = -b/2a

h= -(-8)/2(4)

h = 8/8

h = 1

Substitute k for y and insert the value of h for x in the standard form:

ax^2+bx+c

k = 4(1)^2+(-8)(1)+20

k = 4-8+20

k=-4+20

k = 16

Thus the correct option is h=1, k=16....

8 0
3 years ago
Please help and explain if so thank you
AVprozaik [17]
How many days are in a year? 365. it started out as 88 inches subtracted that by 115 then add the 3.
7 0
3 years ago
Larry rolls 2 fair dice and adds the results from each.
aksik [14]

Answer:

5/36

Step-by-step explanation:

Dice 1 cannot be 1 no matter how large dice 2 gets

Dice 1 = 2,3,4,5,6 each matches with dice 2 to get a sum of 8

8 0
2 years ago
Explanation ASAP please.<br>​
postnew [5]
Triangle area is 1/2 bh
So 11.9 is about 12, 7.1 is about 7.
7x12 = about 84 sq, cm
3 0
3 years ago
Read 2 more answers
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