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2 years ago

Can anyone help me?

Mathematics

1 answer:

just olya [345]2 years ago

4 0

Answer:

The answer is D, 80$ for three 1 hour lessons. I hope this helps :D

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Students love to put ranch dressing on everything, so Elvira needs to keep plenty in stock. The students eat about 2.25 gallons

leonid [27]

In 48 days, they would have consumed 108 gallons, and have 22 left, so yeah. 48 days

5 0

3 years ago

Use properties of operations to write two equivalent expressions for 13(4 + x).

lesantik [10]

Answer:

13(4+x)

=52+13x

Step-by-step explanation:

13 multiplies the 4 and x.

then 13 multiply 4 is 52 while 13 multiply x 13x.

6 0

2 years ago

95 POINTS FOR AWNSER

kari74 [83]

Answer:

$yes \: he \: is \: correct \\ \underline{\boxed{(\triangle{ \delta}) = 8}}$

Step-by-step explanation:

$change \: in \: temp. \: ( \triangle{ \delta}) = t_2 - t_1 \\ hence \to \\( \triangle{ \delta}) = (- 2) - (- 10) \\ (\triangle{ \delta}) = - 2 + 10 \\ (\triangle{ \delta}) = 10 - 2 \\ (\triangle{ \delta}) = 8$

7 0

2 years ago

Read 2 more answers

Given f(x)=x2+14x+40.<br> Enter the quadratic function in vertex form in the box.

slega [8]

For this case we have an equation of the form:
$y = ax ^ 2 + bx + c
$
This equation in vertex form is:
$f (x) = a (x - h) ^ 2 + k
$
where (h, k) is the vertex of the parabola.
We have the following function:
$f (x) = x ^ 2 + 14x + 40
$
We look for the vertice.
For this, we derive the equation:
$f '(x) = 2x + 14
$
We equal zero and clear the value of x:
$2x + 14 = 0

2x = -14

x = -14/2

x = -7$
Substitute the value of x = -7 in the function:
$f (-7) = (- 7) ^ 2 + 14 * (- 7) +40

f (-7) = -9$
Then, the vertice is:
$(h, k) = (-7, -9)
$
Substituting values we have:
$f (x) = (x + 7) ^ 2 - 9$
Answer:
The quadratic function in vertex form is:
$f (x) = (x + 7) ^ 2 - 9$

6 0

3 years ago

Can someone please help me!!

stira [4]

Answer:

Step-by-step explanation:

4 0

2 years ago