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1 year ago

Needs to be submitted soon pls help! ASAP! Thank u (also step by step explanation if can)

Mathematics

1 answer:

ozzi1 year ago

5 0

Answer:

$7$

Step-by-step explanation:

$3x+12x+12=7\\15x+12=7\\15x=-5\\x=\frac{1}{3}$

____

$3(\frac{1}{3} )+4y=7\\1+4y=7\\4y=6\\y=1.5$

$3(\frac{1}{3}) +4(1.5)=7$

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Need help with 13 asap

Whitepunk [10]

I’m hoping you are talking about:
Factor -1/2 out of -1/2x + 6
If so then the answer is
-1/2(x-3)

4 0

3 years ago

What is the length of AB?

Xelga [282]

Answer:

Step-by-step explanation:

From the attachment,

In ΔDEF,

DF = GH-(GD+FH) = 6 - (2+3) = 1 cm

DE = 2+3 = 5 cm (sum of two radius)

Applying Pythagoras theorem,

$EF=\sqrt{DE^2-DF^2}=\sqrt{5^2-1^2}=\sqrt{24}=2\sqrt6$

In ΔCDI,

DI = GH-(GD+IH) = 6 - (2+1.5) = 2.5 cm

CD = 2+1.5 = 3.5 cm (sum of two radius)

Applying Pythagoras theorem,

$CI=\sqrt{CD^2-DI^2}=\sqrt{3.5^2-2.5^2}=\sqrt6$

AB = EF + CI = $2\sqrt6+\sqrt6=3\sqrt6=7.35\ cm$

6 0

3 years ago

Read 2 more answers

Help please will be marked as brainliest if correct and first person to respond

nydimaria [60]

Answer: Unlock code = 76

==========================================================

Explanation:

Use a factor tree to find the prime factorization of each value

22 = 2*11

30 = 2*3*5

Both values have '2' in common and this is the largest such value. Therefore, the GCF of 22 and 30 is 2.

So E = 2

----------------------------

Since 3 and 8 have no factors in common (other than 1), this means the LCM is 3*8 = 24

We can say that F = 24.

If the numbers had some larger number in common, then we'd have to do a bit more work to find the LCM.

----------------------------

As the hint suggests, we'll use the distributive property to show that

3*(7+10) = G + 30

3*7 + 3*10 = G + 30

21 + 30 = G + 30

21 = G .... subtract 30 from both sides; they cancel and go away

G = 21

----------------------------

Use the same idea for the other equation as well

5*(3 + H) = 15 + 45

5*3 + 5*H = 15 + 45

15 + 5H = 45

5H = 45 ............ subtract 15 from both sides; they go away

H = 45/5 ......... divide both sides by 5

H = 9

------------------------------

The unlock code is

E+F+G+H = 2+24+21+29 = 76

4 0

3 years ago

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G-10+7g=15+3g I keep reworking it and I keep getting the wrong answer, please help

Ludmilka [50]

First you need to combine like terms the get all numbers and leters to one side then divide to get g alone so your left with G=5

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3 years ago

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What’s the answer??(SOMEONE PLEASE HELP ME)

Evgesh-ka [11]

To find $f^{-1}$ , you can switch the "x" and "f(x) or y" in the equation.

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Now you need to isolate the "y"

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$(x-8)^{3}+2 = y$

$f^{-1} = (x-8)^{3} + 2$

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3 years ago

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