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2 years ago

PLZZZZ HELP ME I’ll give brainliest answer

Mathematics

1 answer:

miss Akunina [59]2 years ago

5 0

Answer:

12+12+4= 28 She started off with $12 a week when she went to the movies obviously gonna be $12 more let she's gonna make it she doesn't go to the movie plus the 4 light she does with that extra chores

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Write as a decimal<br> A) 407 tenths <br> B) 209 hundredths

castortr0y [4]

Answer:- A) 407 tenths =40.7

B) 209 hundredths=2.09

Explanation:-

We know that one tenth $=\frac{1}{10}$ and one hundredth $=\frac{1}{100}$

A) 407 tenths

$=\frac{407}{10}=40.7$

Thus decimal form of 407 tenths is 40.7.

B) 209 hundredths

$=\frac{209}{100}=2.09$

Thus decimal form of 209 hundredth is 2.09.

4 0

2 years ago

Read 2 more answers

Factor 16x^2 + 49. Check your work.

Shtirlitz [24]

Answer:

$16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})$

Step-by-step explanation:

Given : Expression $16x^2+49$

To find : Factor the expression ?

Solution :

The given expression is a quadratic function $y=ax^2+bx+c$ the solution is $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

On comparing with general form,

a=16, b=0, c=49

Substitute in the formula,

$x=\frac{-0\pm\sqrt{0^2-4(16)(49)}}{2(16)}$

$x=\frac{\pm\sqrt{-3136}}{32}$

$x=\frac{\pm56i}{32}$

$x=\frac{56i}{32},\frac{-56i}{32}$

$x=\frac{7i}{4},\frac{-7i}{4}$

Factors are $(x-\frac{7i}{4}),(x+\frac{7i}{4})$

Therefore, $16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})$

4 0

3 years ago

Y+3=2(x-1) im not so sure that i got the answer correct.

Vikentia [17]

So just try it for x=1 how many will get for y

y+3=2(x-1) for x = 1 will get y+3 =2(1-1) so y+3=2*0 so y+3=0 so y=-3

x=1
y=-3 so choice A.(1,-3) is right sure

hope this will help you

8 0

2 years ago

What number must be added to 15,-6, and 12 to have a mean of 5? Explain.

Genrish500 [490]

You need to add a -1

We can find this by setting up the equation like so

x + (-6) + 12 + 15 / 4 = 5

x + 21 = 20

x = 20 -21

x = -1

Now if we insert -1 where x is located in the equation, you will get a means of 5

3 0

2 years ago

Can someone please help me with these questions.

Juli2301 [7.4K]

Answer:

Question 1 - 81.74 Pound sterling

Question 2 - 20.28 Pound sterling

Question 3 - 21.72 United States Dollar

Question 4 - 429.38 New Zealand Dollar

Question 5 - 451.28 Euro

Question 6 - 2,936.88 Chinese Yuan

(That's all I got.)

5 0

2 years ago