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natulia [17]
2 years ago
11

Evaluate the following expression.

Mathematics
2 answers:
VARVARA [1.3K]2 years ago
7 0

Answer:

im pretty sure its -1

Step-by-step explanation:

hope this helps :)

yawa3891 [41]2 years ago
4 0

Answer:-1

Step-by-step explanation:

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Which type of graph would be best used for showing the percentage of students in each grade level at a middle school
stepladder [879]

Answer:

A pie graph would be a good graph to use

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3 years ago
30 preschoolers are going to a field trip 60% of them will be bringing their own lunch how many lunches does the teacher need to
sweet-ann [11.9K]

Answer:They will need to make 18 lunches

Step-by-step explanation: How I did it was use the website demos scientific calculator and put the question of what is 60% of 30 and it gave the answer!

3 0
3 years ago
Read 2 more answers
Ethan needs to save at least $500 to purchase a new dirt bike. So far, he has saved $175. If he hopes to use two-fifths of his n
IRISSAK [1]

Answer:

$812.5

Step-by-step explanation:

Given: Ethan need to save at least $500.

          He has saved so far $175

          Ethan hope to use two-fifths of his next paycheck to cover the remaining amount.

Lets assume Ethan´s paycheck amount be "x"

First finding the remaining amount to be covered.

Remaining amount= \$ 500 - \$ 175= \$ 325

∴ The remaining amount to be covered is $325.

As given, Ethan hope to use two-fifths of his next paycheck to cover the remaining amount.

Now, using the inequality to find the amount of paycheck.

⇒ x\times \frac{2}{5} \geq \$ 325

multiplying both side by 5

⇒ x\times 2\geq 325\times 5

divinding both side 2

⇒ x\geq \frac{1625}{2}

∴ x\geq \$ 812.5

Hence, Ethan must make at least $812.5 in his paycheck to cover his remaining anount to buy dirt bike.

6 0
3 years ago
All the answers please on paper and work
REY [17]
1)
8² + 15² = 17²
64 + 225 = 289
This is true, so the triangle is a right triangle.

2)
4² + 12² = 13²
16 + 144 = 169
This is false, so the triangle is not a right triangle.

3)
20² + 21² = 27²
400 + 441 = 729
This is false, so the triangle is not a right triangle.

4)
28² + 45² = 53²
784 + 2,025 = 2,809
This is true, so the triangle is a right triangle.
7 0
3 years ago
45) lí the midpoint of AB is (4,3) and point A has coordinates (-2,6),
sweet [91]
Midpoint has a formula x plus x2 divided by 2 and vice versa for y
So to solve you need to fill in numbers
You can replace x with negative 2 since you know that the coordinates for point A are -2,4
Solve to get 10
And vice versa for the y coordinate you solve the filled in equation to get 0
Your end result is 10,0
3 0
3 years ago
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