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ale4655 [162]
3 years ago
11

Select all the expressions that are equivalent to 4b:

Mathematics
1 answer:
Alinara [238K]3 years ago
8 0

Answer:

No. 1 , 3 and 5 is correct.

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4(3x + 2)<br> (Box)x+ 8<br><br> What number belongs in the box?<br> A. 3<br> B. 4<br> C. 7<br> D. 12
ASHA 777 [7]

Answer:

option D 12 is correct..

in second question the student didn't multiply -3 with 4. that's the mistake he did.

hope it helps

4 0
3 years ago
Read 2 more answers
Can someone please help me with how to do this?? I am lost
JulsSmile [24]

Answer:

G represents sets of student appearing for GENERAL KNOWLEDGE  

M represents sets of student appearing for MATHS

S represents sets of student appearing for SCIENCE

G ∩ M = { Max, Anael}

G ∪ S = { Max, Acel, Carl, Anael, Acton, Dario, Kai, Barek, Carlin}

8 0
3 years ago
PLS HELP SOLVE! and pls show work
Maurinko [17]

Answer:

see explanation

Step-by-step explanation:

(\frac{g}{h})(t) = \frac{g(t)}{h(t)} = \frac{t+3}{3t-4}

6 0
3 years ago
Question : In the given figure , ∆ APB and ∆ AQC are equilateral triangles. Prove that PC = BQ.
lorasvet [3.4K]

Answer:

See Below.

Step-by-step explanation:

We are given that ΔAPB and ΔAQC are equilateral triangles.

And we want to prove that PC = BQ.

Since ΔAPB and ΔAQC are equilateral triangles, this means that:

PA\cong AB\cong BP\text{ and } QA\cong AC\cong CQ

Likewise:

\angle P\cong \angle PAB\cong \angle ABP\cong Q\cong \angle QAC\cong\angle ACQ

Since they all measure 60°.

Note that ∠PAC is the addition of the angles ∠PAB and ∠BAC. So:

m\angle PAC=m\angle PAB+m\angle BAC

Likewise:

m\angle QAB=m\angle QAC+m\angle BAC

Since ∠QAC ≅ ∠PAB:

m\angle PAC=m\angle QAC+m\angle BAC

And by substitution:

m\angle PAC=m\angle QAB

Thus:

\angle PAC\cong \angle QAB

Then by SAS Congruence:

\Delta PAC\cong \Delta BAQ

And by CPCTC:

PC\cong BQ

5 0
3 years ago
Read 2 more answers
125,600 surface area converted to volume?
Illusion [34]

Answer:

1256000

Step-by-step explanation:

My example:

Find the radius of the sphere by substituting 4.5? ft^3 for V in the formula in Step 1 to get: V=4.5? cubic feet.= (4/3)?(r^3)

Multiply each side of the equation by 3 and the equation becomes: 13.5 ? cubic feet =4?(r^3)

Divide both sides of the equation by 4? in Step 4 to solve for the radius of the sphere. To get: (13.5? cubic feet)/(4?) =(4? )(r^3)/ (4?), which then becomes: 3.38 cubic feet= (r^3)

Use the calculator to find the cubic root of 3.38 and subsequently the value of the radius “r” in feet. Find the function key designated for cubic roots, press this key and then enter the value 3.38. You find that the radius is 1.50 ft. You can also use an online calculator for this calculation (see the Resources).

Substitute 1.50 ft. in the formula for SA= 4?(r^2) found in Step 1. To find: SA = 4?(1.50^2) = 4?(1.50X1.50) is equal to 9? square ft.

Substituting the value for pi= ?= 3.14 in the answer 9? square ft., you find that the surface area is 28.26 square ft. To solve these types of problems, you need to know the formulas for both surface area and volume.

8 0
3 years ago
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