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3 years ago

Please help, whoever gets it right I will mark brainliest.

Mathematics

2 answers:

arlik [135]3 years ago

8 0

Answer:

choices 1, 3, & 4 are true, 2 is not

Step-by-step explanation:

Pepsi [2]3 years ago

5 0

Answer:

One and Four

Step-by-step explanation:

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Wendy winholtz 8 year savings certificate pays an annual interest rate of 5.3% at the end of 5 years she cashed out the 6,000 CD

Vlad [161]

Answer:

318

Step-by-step explanation:

The rate of 5.3% is an annual rate, and specifies the amount of interest earned in a 12-month period by the principal amount of the CD. The interest amount is found by multiplying the interest rate by the principal amount.

<h3>penalty</h3>

The amount of the penalty is 5.3% of 6000:

0.053 × 6000 = 318

Wendy paid a penalty of 318 for her early withdrawal.

8 0

2 years ago

Twice a number plus twice a second number is 310. The difference between the numbers is 55

agasfer [191]

Answer:

x = 105

y = 50

Step-by-step explanation:

To solve this, try writing it out as an equation/expression first.

When you do, you should get something like this:

2x + 2y = 310

x - y = 55

This is a system of equations. To solve this, we're going to multiply the second equation [x - y = 55] by 2.

2(x - y = 55) = 2x - 2y = 110

Now, subtract your new equation from the first one [2x + 2y = 310]

2x + 2y = 310

-2x + 2y = -110

//<em>If you</em>'<em>re wondering why I changed the signs of the new equation, I multiplied our new equation [2x - 2y = 110] by -1 since we're subtracting//</em>

When you're done subtracting, the "2x" and "-2x" cancel out, so you're left with:

4y = 200

Now, simply solve for "y" by dividing both sides by 4.

4y = 200

y = 50

Now that we know y's value, substitute it into one of our original equations to solve for x.

//<em>I'm gonna plug y into the second equation [x - y = 55] just because it's easier, but you can plug it into the first one as well and get the same answer//</em>

When we plug it in, we get:

x - (50) = 55

To solve for "x," we must get rid of "-50." To do this, add 50 to both sides.

x - 50 = 55

x = 105

4 0

4 years ago

What is the graph of the function f(x)=x2+ 2x+ 3?

8090 [49]

Answer:

Step-by-step explanation:

The best way to do this is to let a graphing program do it. You could do it from a chart, but a graphing program can be useful for that as well. We'll make up a mini chart here

x method y

-3 (-3)^2 + 2(-3) + 3 = 6

-2 (-2)^2 + 2(-2) + 3 = 3

-1 (-1)^2 + 2(-1) + 3 = 2

0 3

1 (1)^2 + 2(1) + 3 6

2 (2^2) + 2(2) + 3 11

3 (3)^2 +2(3) + 3 18

See the graph below.

You can pick it out from the graphs you were given.

8 0

4 years ago

Find the slope (5,9) and (3,-7)

belka [17]

Answer:

Positive 8 I answered your other one too

5 0

3 years ago

With the radius of 2 Find the volume of the sphere. Round your answer to the nearest tenth. Use 3.14 for it. The volume of the s

Jet001 [13]

Answer:

Solution given:

radius[r]=2in

π=3.14

we have

volume of sphere= $\frac{4}{3} \pi {r}^{3}$ = $\frac{4}{3} ×3.14× {2}^{3}$ =33.5in³is your answer.

6 0

3 years ago