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s2008m [1.1K]
3 years ago
8

I need help. I don't even know where to start, or what to do. Can someone explain?​

Mathematics
1 answer:
Nastasia [14]3 years ago
3 0

Answer:

You can follow the image attached. (Although not 100% accurate, since it is roughly an estimate of where the values are.)

Basically, you will indicate with dots (or crosses) the points which fulfill the data in the table. In this case, the x-axis will be the average temp and the y-axis will be the date in april trees bloom.

For example, you can roughly estimate where 1.5 in the x-axis, and follow to find 28 in the y-axis for the first set of data, and continue this for all 8 points.

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3(x + 7)2 + 8 = 440 <br> using square roots
ziro4ka [17]
X= 65
Explanation:
Simplify both sides of equations
3(x)+7)(2)+8=440
6x+42+8=440 (Distribute)
(6x)+(42+8)=440
(Combine Like Terms)

Step 2: subtract 50 from each side
6x+50−50=440-50 6x=390

Step 3: Divide both sides by 6
6x/6 = 390/6
7 0
3 years ago
Ben's Auto Dealer had a sale on Saturday for its new cars. By 10 a.m. 30% of the new cars had been sold. What decimal represents
emmasim [6.3K]
Decimal: 0.7 100%-30%=70% 70%=70/100= 0.7
4 0
4 years ago
Read 2 more answers
Use a graphing calculator to sketch the graph of the quadratic equation, and then state the domain and range. y = x squared + 2
Charra [1.4K]

Answer:

Step-by-step explanation:

y = x² + 2x - 5

d. D: all real numbers R: (y greater-than-or-equal-to negative 6)

6 0
3 years ago
What are the variables if PT= 2x, TR= y+4, QT= x+2, TS=y
Brilliant_brown [7]
The missing aspect of this question is shown in the attached image, which is that the letters correspond to vertices of a parallelogram.

A key feature of the parallelogram is that the diagonals bisect each other, therefore:

PT = TR
QT = TS

With this information we can now plug in the equations and solve for the variables x and y.

PT = TR
2x = y+4
y = 2x - 4

QT = TS
x + 2 = y

We now have two equations for the variable y. With this we can solve for x.

2x - 4 = x + 2
x = 6

y = x + 2
y = 6 + 2
y = 8

Once we solved for the variable x, we simply placed that value back into one of the previous equations and solved for y. The results are x = 6, y = 8.

5 0
3 years ago
A collection of quarters and nickels is worth ​$3.75. There are 27 coins in all. Find how many of each there are.
inysia [295]

Q +N =27

Q=27-N

0.25Q + 0.05N =3.75

0.25(27-N) + 0.05 =3.75

6.75-0.25N+0.05N=3.75

6.75-0.2N=3.75

-0.2N=-3

N=-3/-0.2 = 15

15 nickels

27-15 = 12

12 quarters

15x0.05 = 0.75

12 x 0.25 = 3.00

3.00 + 0.75 = 3.75


 12 quarters & 15 nickels

6 0
3 years ago
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