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3 years ago

.686 rounded to the nearest tenth

Mathematics

2 answers:

maria [59]3 years ago

8 0

.690 because 6 rounds up to 10 so it would go up to the next tenth

rodikova [14]3 years ago

7 0

I agree with her if you search it up you will get the same answer.

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Factor completly x^2 -64

Hoochie [10]

∑ Hey, jillianwagler ⊃

Answer:

$\left(x+8\right)\left(x-8\right)$

Step-by-step explanation:

<u><em>⇒ Given info:</em></u>

<em>Factor completely </em> $x^2 -64$

<u><em>⇒ Solution:</em></u>

<em>Rewrite 64 as 8 ² because 8² is equal to 64. 8 ² = 8 × 8 = 64.</em>

<em /> $=x^2-8^2$

Applying difference of two squares formula: $x^2-y^2=\left(x+y\right)\left(x-y\right)$

$=x^2-8^2=\left(x+8\right)\left(x-8\right)\\$

$=\left(x+8\right)\left(x-8\right)$

Answer~: $\left(x+8\right)\left(x-8\right)$

<u><em>xcookiex12</em></u>

7 0

2 years ago

Danny earns a monthly allowance of twenty dollars and extra seventy five cents every time he is nice to his mom. Avery earns a m

Lerok [7]

Answer:

Danny: y-=.75x+20

Avery: y=1.25x+18

Step-by-step explanation:

To write a system of equations, it usually equals y=mx+b. Since Danny and Avery both earn the set monthly allowance of 20 and 18 dollars respectively, those numbers go on the variable b since it's a set amount and they start off with that amount of money if they weren't nice to their mom at all.

Since we are trying to find the overall amount of money, let y=total money a child earns every month and x=how many times the child is nice to their mother.

The extra .75 cents Danny earns go under the variable m because it is dependent on how many times he is nice to his mom. Along with Avery.

4 0

3 years ago

Tranny a method for Simplifying

san4es73 [151]

Answer:

x=0

Step-by-step explanation:

120521x=0

x=0/120521=0

6 0

3 years ago

Which two equations would be most appropriately solved by using the zero product property? Select each correct answer.

LekaFEV [45]

The zero product property tells us that if the product of two or more factors is zero, then each one of these factors CAN be zero.

For more context let's look at the first equation in the problem that we can apply this to: $(x-3)(x+4)=0$

Through zero property we know that the factor $(x-3)$ can be equal to zero as well as $(x+4)$ . This is because, even if only one of them is zero, the product will immediately be zero.

The zero product property is best applied to factorable quadratic equations in this case.

Another factorable equation would be $2x^{2}+6x=0$ since we can factor out $2x$ and end up with $2x(x+3)=0$ . Now we'll end up with two factors, $2x$ and $(x+3)$ , which we can apply the zero product property to.

The rest of the options are not factorable thus the zero product property won't apply to them.

3 0

3 years ago

Read 2 more answers

Priya rode her bike 1250 feet. If her bike wheel has a diameter of 2.5 feet, how many times did her wheel make a full rotation?

Alex17521 [72]

Answer:

159 times

Step-by-step explanation:

<h3>Given</h3>

d = 2.5 ft
Distance = 1250 ft

Number of rotations

<h3>Solution</h3>

<u>Circumference of the wheel is the one full rotation:</u>

C = πd = 3.14*2.5 = 7.85 ft

<u>Number rotations:</u>

1250/7.85 = 159.2

<u>Correct option is</u> 159 times

5 0

3 years ago