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2 years ago

-10x+45 find x when x =15

Mathematics

2 answers:

zepelin [54]2 years ago

5 0

Answer:

Step-by-step explanation:

-10(15)+45

-150 plus 45

-105 would be your answer

leonid [27]2 years ago

3 0

Your answer is -105 pal

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Dr. Mann mixed 9.357 g of chemical A, 12.082 g of chemical B, and 7.502 g of chemical C to make 5 doses of medicine. About how m

SOVA2 [1]

Answer:

Step-by-step explanation:

1) About how much medicine did he make in grams?

Dr. Mann mixed

9.357 g of chemical A,

12.082 g of chemical B,

7.502 g of chemical C

We can determine total amount of medicine that was prepared by Dr. Mann by summing up the chemicals (A,B,C)

=( 9.357grams of A + 12.082grams of B+ 7.502grams of C)

= 28.941 grams in total

The next step is to round up those chemicals value to their nearest tenth as asked by question

Dr. Mann mixed

9.357 g of chemical A= 9.4grams

12.082 g of chemical B,=12.1grams

7.502 g of chemical C =7.5grams

2)Estimate the amount of each chemical by rounding to the nearest tenth of a gram before finding the sum.

Then the sum after rounding up to nearest tenth is

(9.4grams +12.1grams + 7.5grams)

=29 gram

7 0

2 years ago

What is the solution set to the inequality 7z+5>47

Vsevolod [243]

Answer:

$z>6$

<h2>Step-by-step explanation:</h2>

7z+5>47

Remove the 5:

$7z+5-5>47-5\\7z>42$

Divide by 7 to get z by itself:

$\frac{7z}{7} >\frac{42}{7} \\z>6$

5 0

3 years ago

What is the distance between the points?! round to the nearest tenth i need to show work

Contact [7]

Answer:

8.6

Step-by-step explanation:

To find the distance between two points we use the formula posted below

All we need to do is figure out what the points are on the graph and plug them into the formula... we end up with

the square root of (5-(-2)^2+(2-(-3)^2 and get the answer of 8.602325267

then we round to the nearest tenth and get 8.6

5 0

3 years ago

True or false: sec^-1(0.5) is undefined. explain your answer

ICE Princess25 [194]

Here we get the statement:

"sec^-1(0.5) is undefined"

And we want to see if this is true or false, so let's use the properties that we know to find that this is false.

Remember that the sec function is defined as:

$sec(x) = \frac{1}{cos(x)}$

Then we will have:

$sec^{-1}(x) = (\frac{1}{cos(x)})^{-1} = cos(x)$

Then is really trivial to see that:

$sec^{-1}(0.5) = cos(0.5) = 0.878$

Then we can conclude that the function is not undefined at 0.5, so the statement is false.

Below you can see the graph of the given function, and you will see that it is never undefined.

If you want to learn more, you can read:

brainly.com/question/16453813

6 0

3 years ago

Read 2 more answers

The radius of the sphere is 33 find the surface area

patriot [66]

Answer:

A=13684.7776

Step-by-step explanation:

$= 4\pi {r}^{2}$

$4\pi {33 }^{2} = 13684.7776$

5 0

2 years ago