Estimate the sum to the nearest whole number: 0.870 + 3.2 A) 2 B) 3 C) 4 D) 5

Mathematics

1 answer:

vfiekz [6]2 years ago

6 0

the answer is C) four

You might be interested in

Calculate the area of a circle with a radius of 10 cm use pie

Advocard [28]

100pi or 100x3.14159

3 0

3 years ago

Plss help!!Need this ASAP!!Daniel began filling an empty swimming pool

beks73 [17]

Answer:

15 hours

Step-by-step explanation:

To find the gallons per hour: 230/5=46, this means that it take 46 gallons per hour, you add 46 to 230, and you do that 15 times and you'll get 920. The pool will be filled at 11:00 pm.

5 0

3 years ago

Question 1(Multiple Choice Worth 3 points)

frez [133]

Answer: D) 99 Points

Step-by-step explanation: Theresa earned scores of 88 points, 84 points, 88 points, and 91 points on four tests

Therefore the totals points are 351

351 is her total score for 4 tests, if she gets an average score of 90 on her fifth test then all we have to do is:

5 x 90 = 450 (The 5 being her fifth test)

450-351 = 99

Option D

3 0

3 years ago

Solve the system of equations using the substitution method.

Galina-37 [17]

Answer:

x = y = -2

Step-by-step explanation:

Hope this helps

3 0

2 years ago

Read 2 more answers

How do you factor this? x^{2} + 5 x- 9 = ?

Oksanka [162]

$x^2+5x-9\\\\a=1;\ b=5;\ c=-9\\\Delta=b^2-4ac\\\\\Delta=5^2-4\cdot1\cdot(-9)=25+36=61 > 0\\\\x_1=\dfrac{-b-\sqrt\Delta}{2a}\ and\ x_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{61}\\\\x_1=\dfrac{-5-\sqrt{61}}{2\cdot1}=\dfrac{-5-\sqrt{61}}{2}\\\\x_2=\dfrac{-5+\sqrt{61}}{2\cdot1}=\dfrac{-5+\sqrt{61}}{2}\\\\x^2+5x-9=\left(x-\dfrac{-5-\sqrt{61}}{2}\right)\left(x-\dfrac{-5+\sqrt{61}}{2}\right)$

6 0

3 years ago