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3 years ago

Round to nearest 10th 807+66.1+474.9+52.2

Mathematics

1 answer:

Rasek [7]3 years ago

4 0

1400.2 is the answer

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What is the distance between 5,4 and -1,1

spayn [35]

Answer:

3 $\sqrt{5}$

Step-by-step explanation:

Calculate the distance d using the distance formula

d = $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }$

with (x₁, y₁ ) = (5, 4) and (x₂, y₂ ) = (- 1, 1)

d = $\sqrt{(-1-5)^2+(1-4)^2}$

= $\sqrt{(-6)^2+(-3)^2}$

= $\sqrt{36+9}$

= $\sqrt{45}$

= 3 $\sqrt{5}$ ← exact value

≈ 6.71 ( to 2 dec. places )

8 0

2 years ago

∠ A and ∠ B are complementary. If m∠ B = 80°, what is the measure of ∠ A?

Stolb23 [73]

Angle A would be 10 degrees.
Complementary angles add to 90 degrees.
So 90-80=10

6 0

3 years ago

Help asap Which explains how to find the quotient of the division below? -3 1/3 divided by 4/9

noname [10]

Answer:

$-7\frac{1}{2}$

Step-by-step explanation:

To find the quotient, convert the mixed number to an improper fraction first

$-3\frac{1}{3}=-\frac{3*3+1}{3}=-\frac{10}{3}$

Find the quotient now

$\frac{(-10/3)}{(4/9)}=-\frac{10*9}{4*3}\\ \\=-\frac{90}{12}$

Simplify

Divide by $6$ both numerator and denominator

$=-\frac{15}{2}=-7.5$

Convert to a mixed number

$-7.5=-(7+0.5)=-(7+\frac{1}{2})=-7 \frac{1}{2}$

4 0

3 years ago

Read 2 more answers

You have to pay to fix the sink. They are charging you $75 for parts and

Alika [10]

Answer: y = 20x+75

Step-by-step explanation:

Hi, to answer this question we have to write an equation:

The cost (y) must be equal to the product of the cost per hour of installation (20) and the number of hours that it takes (x); plus the fixed cost of parts and installation (75).

Mathematically speaking:

y = 20x+75

Feel free to ask for more if needed or if you did not understand something

4 0

2 years ago

Amy and her friends have $12.50 to spend on lunch. They agree to share a

Anastaziya [24]

Good luck, I am not sure how to solve the next part of the question

8 0

2 years ago