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Elodia [21]
3 years ago
12

Solve using the quadratic formula: Y = 2x^2 - 7x-3

Mathematics
1 answer:
algol133 years ago
7 0

Answer:

x=-0.39 x=3.89

Step-by-step explanation:

a=2

b=-7

c=-3

when you plug all of those numbers in you would get

(7±\sqrt{73} )/ (4)

so x=-0.39 x=3.89 would be your answer

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4 years ago
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A line with a slope of 4 passes through the points (8,7) and (7,p). What is the value of p
gayaneshka [121]

Answer:

p=3

Step-by-step explanation:

There are multiple ways to solve this, but since two points are provided (8,7) and (7,p) and the slope is also given (m=4), we can use the formula for the slope.

m = \dfrac{y_2-y_1}{x_2-x_1}

Here,

m=4\quad, (x_1,y_1)=(8,7)\quad,(x_2,y_2)=(7,p)

4 = \dfrac{p-7}{7-8}

Now we'll just solve for 'p'

4 = \dfrac{p-7}{-1}

4(-1) = p-7

-4+7 =p

p=3

Hence, the line passes through (8,7) and (7,3)

7 0
3 years ago
What is the solution to the system of equations?
dlinn [17]

Answer:

(6-1) = 5 Because Obio 6 minus 1 equals 5

5 0
3 years ago
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the volume of the cone is 25.12cm cubed, and the area of the base is 12.56cm squared.what is the height
Lady bird [3.3K]

Height of the cone having volume as 25.12 \text { cm}^{3} and base area 12.56 \text { cm}^{2} is 6 cm.

Solution:

Given that volume of cone = 25.12 \text{ cm}^{3}

Area of base = 12.56 \text { cm}^{2}

Need to determine height of the cone.

Formula for volume of the cone is as follows

\mathrm{V}_{c}=\frac{1}{3} \pi r^{2}{h} \rightarrow (1)

Area of circular base of cone = A_{b}=\pi r^{2}

Replacing \pi r^{2} \text { by } A_{b} in equation (1), we get

\mathrm{V}_{\mathrm{c}}=\frac{1}{3} \mathrm{A}_{\mathrm{b}} \mathrm{h}

\Rightarrow \frac{3 \mathrm{V} c}{\mathrm{A}_{\mathrm{b}}}=h

\Rightarrow h=\frac{3 \mathrm{v} c}{\mathrm{A}_{\mathrm{b}}} \rightarrow (2)

In our case Volume of cone V_c= 21.12 \text{ cm}^3 and Area of base A_b=12.56 \text { cm}^2

On substituting the values of volume and area in equation 2 we get

h=\frac{3 \times 25.12}{12.56}=6 \text{ cm }

7 0
3 years ago
1.) The check number on a check:
ziro4ka [17]

Answer:

D) Identifies the transaction and is located at the top right corner of the check

Step-by-step explanation:

The check number on a check is the number located at the top right corner of the check, and it can also be found at the bottom of the check, located in lower right corner after the routing number and the account number

The check number aids in the tracking and identifying bank transactions such as to identify checks that the bank has processed and to know outstanding checks that are yet to be processed.

The check number also aids in balancing of the checkbook.

Therefore, the check number on a check identifies the transactions and is located at the top right corner of the check.

4 0
3 years ago
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