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3 years ago

Can anyone help me with this one

Mathematics

1 answer:

BigorU [14]3 years ago

5 0

Answer:

-2.60 and 9.60

Step-by-step explanation:

You can do the quadratic formula or try to factor. I used a program in my calculator I already had to factor it.

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Someone please help me thank you.

Andrews [41]

9514 1404 393

Answer:

k = 8

Step-by-step explanation:

A slope of 3 means that y increases by 3 when x increases by 1.

The second point (2, k) has an x-value (2) that is 1 more than the x-value (1) of the first point (1, 5). This means the y-value (k) of the second point (2, k) will be 3 more than the y-value (5) of the first point (1, 5).

k = 5 + 3 = 8

3 0

3 years ago

Rewrite the function by completing the square. f(x)=x^2+x-30 It’s supposed to look like this f(x)= (x+ )^2+ .

leonid [27]

Answer:

$f(x)=(x+1/2)^2 +(- 30.25)$

Step-by-step explanation:

In this question we are required to rewrite the given function by using completing the square method.

Completing the square method requires that our given equation can be written in form: $(a\pm b)^2 = a^2 \pm 2ab +b^2$

SO, we have to transform our equation according to above format.

Since our equation is $x^2+x-30$ , we will transform it into

$(a + b)^2 = a^2 + 2ab +b^2$

because the middle term of given equation has + sign.

$x^2+x-30=0\\x^2+x=30\\x^2 + 2(x)(1/2) + (1/2) ^2 = 30 + (1/2)^2$

We have introduced (1/2)^2 on both sides of the equation to gain the required form.

$(x+1/2)^2 = 30.25\\(x+1/2)^2 - 30.25 = 0\\f(x) = (x+1/2)^2 +(- 30.25)$

Our answer is $f(x)=(x+1/2)^2 +(- 30.25)$

3 0

3 years ago

Carly mowed 2 more lawns than Rocco each week for 6 weeks. Carly mowed a total of 18 lawns. how many lawns did Rocco mowed

Makovka662 [10]

Answer: 6

Step-by-step explanation: divide 18 by 6, then subtract 2 from the answer. Multiply by 6.

18/6=3-2=1*6=6

3 0

3 years ago

Read 2 more answers

7 – (5t – 13) = –25 HELP NO TROLLING ALSO PLS EXPLAIN HOW U GOT IT TY !

aleksklad [387]

The answer would be 9 you would add the 13 and 7 then have 20-5t=-25 then subtract 20 from 25 then you would have -5=-45 which is 9

6 0

3 years ago

15 divided by 6 2/3 =<br> A. 100<br> B. 2/14<br> C. 100 1/4<br> D. 2 3/4

Ket [755]

The answer is D. 2 2/3

5 0

3 years ago

Read 2 more answers