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aleksandrvk [35]
3 years ago
13

What is the vertex of the graph of the function f(x) = x^2 + 8x − 2 ?

Mathematics
1 answer:
irina [24]3 years ago
6 0
You have to complete the square. It is -4 18
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Mika placed $4200 in a savings account which compounds interest continuously at a rate of 2.3%. How much will she have in the ac
OleMash [197]

Mika placed $4200 in a savings account which compounds interest continuously at a rate of 2.3%.

How much will she have in the account after 3 years?

1st year 4200 x 1.023 = 4296.60

2nd year 4296.60 x 1.023 = 4395.4218

3rd year 4395.4218  x 1.023 = 4496.5165

Round to the nearest dollar.

$4497

6 0
3 years ago
What is the radius of a basketball with a diameter of 22 inches?
Ghella [55]

Answer:

11

Step-by-step explanation:The radius will always be half of the diameter therefore it will be 11

7 0
3 years ago
Find the solution of the system of equations.<br><br> 15x -4y = -50<br><br> 3x - 2y = -16
Fittoniya [83]

Answer:

15x - 4y =-50 -----(i)

3x - 2y=-16 --------(ii)

Using Substitution

From (i)

15x=4y-50

x=4y-50/15

Substitute x=4y-50/[15] into eqn (ii)

3x - 2y= -16

3[4y-50]/15 - 2y =-16

Multiply through by 15 to clear the fraction

3(4y - 50) - 30y=-240

12y - 150 -30y=-240

12y-30y=-240+150

-18y = -90

y=90/18

y=5.

Substitute into any eqn of choice to get x

3x - 2y=-16

3x - 2(5)=-16

3x - 10=-16

3x=-16+10

3x=-6

x=-6/3

x=-2.

x= -2

y=5

5 0
3 years ago
What decimals are equivalent to 0.50
Lady bird [3.3K]

Answer:

(1/2), (2/4), (3/6), (4/8), (5/10) etc...

Step-by-step explanation:

0.50 is a decimal that represent a half of one...

This is already in decimal form... Do you mean fraction? If so...

(1/2), (2/4), (3/6), (4/8), (5/10) etc...

3 0
3 years ago
Read 2 more answers
What is the solution to the equation Negative 3 (h + 5) + 2 = 4 (h + 6) minus 9?
ANTONII [103]

Answer:

h=-4

Step-by-step explanation:

Use the Distributive law:

1. -3(h+5) gives us -3h-15 then you add your two(2).

the whole of your left side of the equation will give you -3h-13

2. 4(h+6) gives us 4h+24 then you subtract nine(9).

the whole of the right side of the equation will give you 4h+15

3. equate the two like this:

-3h-13=4h+15

4. group like terms of each side:

-13-15=4h+3h

5. Add and Subt<u>r</u>act

-28=7h

6. Decide both sides by 7 to make h the subject of the formula

7. Congratulations you got your answer as h=-4

5 0
3 years ago
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