3 years ago

HELP ME PLEASE I NEED IT 40 PTS

Mathematics

2 answers:

Vikentia [17]3 years ago

8 0

Answer: D

Step-by-step explanation:

10 squared is 100 and 11 squared is 121, and 111 is in between those two numbers.

tester [92]3 years ago

8 0

Answer: 10 and 11

Out of the choices all you have to do it 7x7 or 8x8 and etc.

Until one of the choices are the closest.

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PLEASE HELP ME I ONLY HAVE 20 MINUTES!!!!

Over [174]

$h(x) = 40x - 16x^2\\h(x) = 15\\40x - 16x^2 = 15\\-16x^2 + 40x - 15 = 0\\$

Using the quadratic formula we get

$x_1 = 0.5\\x_2 = 2.04$

Therefore the tennis ball is at least 15 feet above the ground from 0.5 seconds to 2.04 seconds

7 0

3 years ago

What is the conjugate of -1-5i?

NARA [144]

Answer:

-6

Step-by-step explanation:

is -6

4 0

2 years ago

Your job is to sort and sack marbles for sale. A bag contains 44 marbles, some red and some green. If there are 11 red marbles,

julia-pushkina [17]

Answer:

Option C is correct

The ratio of green to red marbles is, 3 : 1

Step-by-step explanation:

As per the statement:

A bag contains 44 marbles, some red and some green.

⇒Total marbles = 44

If there are 11 red marbles.

then;

Green marbles = Total marbles - red marbles.

Substitute the given values we have;

Green marbles = 44 - 11 = 33

We have to find the ratio of green to red marbles.

$\frac{\text{Green marbles}}{\text{Red marbles}} = \frac{33}{11} = \frac{3}{1} = 3 : 1$

Therefore, the ratio of green to red marbles is, 3 : 1

8 0

3 years ago

What is the area of the triangle below (in square units)?

Helga [31]

Answer:

It is 50 cm squared hxb/2=a

8 0

2 years ago

A towel has a repeating pattern of two green stripes, then 3 blue stripes, and then 1 yellow stripe. If the towel has 20 stripes

EleoNora [17]

The answer would be a total of 9 blue stripes.

4 0

3 years ago