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3 years ago

Which of the following is r2 + 4s evaluated for r = 4 and s = 1.5?

2 answers:

8 0

So if you have r^2 + 4s and r=4 and s = 1.5 r^2 is 4^2 which is 16 and 4s is 1.5 x 4 which is 6 so you do 16 + 6 which is 22 so the correct answer is a.

GenaCL600 [577]3 years ago

3 0

Answer:

A. 22

Step-by-step explanation:

4^2 + (4)(1.5)

4 multiplied by 1.5 is 6.

4 to the power of 2 is 16.

16 + 6 = 22.

Therefor, your answer would be A. 22

Hope this helps!

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Ann [662]

0.2 repeating is 0.2222222222...
so you have to put the repeating digit(s) divided by 9's
Then it will be 2/9 which yields 0.222222222.....

3 0

3 years ago

Which of these statements describe properties of parallelograms ? check all that apply

Stella [2.4K]

Answer:

Step-by-step explanation:

Following are some properties of parallelogram:

Opposite sides of a parallelogram are congruent.

Opposite angles of a parallelogram are congruent.

Consecutive angles of a parallelogram are supplementary.

If a parallelogram has 1 right angle, then it has 4 right angles.

The diagonals of a parallelogram bisect each other.

Hope this helps

plz mark as brainliest!!!!!

7 0

3 years ago

Read 2 more answers

7. A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the

svp [43]

Answer: 475.59 meters .

Step-by-step explanation:

The correct equation is the following:

$y =-0 .02x^2 +9.5x + 5.6$

For this exercise you need to use the Quadratic formula:

$x = \frac{-b\±\sqrt{b^2-4ac}}{2a}$

In this case you can identify that the values of "a", "b" and "c" are:

$a=-0.02\\\\b=9.5\\\\c=5.6$

Now you must substitute these values into the Quadratic formula and then evaluate. You get:

$x=\frac{-9.5\±\sqrt{(9.5)^2-4(-0.02)(5.6)}}{2(-0.02)}\\\\x_1=475.588\\x_2=-0.588$

Choose the positive one and round it to the nearest hundreth:

$x_1\approx 475.59$

4 0

3 years ago

Help Please!! What is the value of a? Enter your answer in the box. a =

Talja [164]

Answer:

a=15

Step-by-step explanation:

By pythagoras' theorem

25²=20²+a²

625=400+a² group like terms

a²=625-400

a²=225

$\sqrt{a {}^{2} } = \sqrt{225}$

therefore a=15

6 0

3 years ago

3/4 - 2/7 = ? pls help me because I can get grounded

Leona [35]

Answer:

1/7

Step-by-step explanation:

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7 0

3 years ago