3 years ago

Pls help me with this

Mathematics

1 answer:

Lady_Fox [76]3 years ago

6 0

Answer:

Step-by-step explanation:

-7 8

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3/4 of 22 as a mixed number in its simplest form

user100 [1]

Answer:

3+2times 4=34

Step-by-step explanation:

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3 years ago

Which of the following statements about JK and JL is true? 13 12 10 5 L(7.4) K(-4,2) 2 J(2, 1) 1 2 3 4 5 6 7 -7-6-5-4-3-2-1 O A.

Stella [2.4K]

Answer:

I think It´s C

Step-by-step explanation:

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3 years ago

How many milliliters are equal to 1.5 gallons, if 1 liter = 1,000 milliliters and 1 gallon = 3.785 liters?

Korvikt [17]

1.5 gallons x 3.785 liters x 1000 milliliters
---------------- -------------------- = 5677.5 milliliters
1 gallon 1 liter

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3 years ago

A retired math teacher takes her niece shopping. She tells her niece that they can spend x dollars and

pashok25 [27]

Answer:

Division. The niece can divide both sides of the equation by 19 to find the answer.

Let me know if this helps!

8 0

3 years ago

Please help! Thanks in advance.

alukav5142 [94]

In this problem, we need to plug in the given x values for $f(x)=0$ and find a and b.

When we plug in 1, we get: $2 \times {1}^{4} - 5 \times {1}^{3} - 14 \times {1}^{2} + a \times 1 + b = 0$

Simplify:
$2 - 5 - 14 + a + b = 0$
$- 17 + a + b = 0$
$a + b = 17$

We got our first statement about the values of the variables. If we find one more we can find those 2 variables.

We have another given root: 4.

Plug it in:
$2 \times {4}^{4} - 5 \times {4}^{3} - 14 \times {4}^{2} + a \times 4 + b = 0$
$512 - 320 - 224 + 4a + b = 0$
$- 32 + 4a + b = 0$
$4a + b = 32$

Now we have our second one. We can combine them:
$a + b = 17 \\ 4a + b = 32$

I use elimination method which is easier here.

Multiply the top equation by -1: $- a - b = - 17 \\ 4a + b = 32$

Add them up:
$3a = 15$

Simplify:
$a = 5$

Now we have a, we can plug in one of those equations to find b:
$5 + b = 17$
$b = 17 - 5$
$b = 12$

So, the answers are $a=5$ and $b=12$ .

6 0

3 years ago