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Agata [3.3K]
3 years ago
7

Pls pls pls pls help me

Mathematics
1 answer:
VladimirAG [237]3 years ago
7 0

Answer:

96 cm²

Step-by-step explanation:

Triangular face:

base = 8 cm

height = 6 cm

Area of triangle = \dfrac{1}{2}*b*h

              = \dfrac{1}{2}*8*6\\\\=4*6\\\\= 24 \ cm^{2}

Area of 4 triangular faces = 4 * 24 = 96 cm²

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Please hellpp!!
tino4ka555 [31]

Answer:

the first option

Step-by-step explanation:

d=m/v

must get v alone

(m)d = m/v(m)

on the right side, multiply m/v by m.

this cancels out the m's, leaving v alone.

on the left side, multiply d times m.

dm=v

7 0
3 years ago
Find x such that 3^x = 27 mod 32 (b)
gregori [183]

Answer:

The value of x is 11.

Step-by-step explanation:

Consider the provided information.

It is given that 3^x = 27 mod\ 32

We know that:

3^4=81

Now if we divide the number 81 with 32 it will gives us remainder 17.

This can be written as:

3^4\equiv 17(mod\ 32)

Now use the property: a^n\equiv b^n(mod\ m)

(3^4)^2\equiv 17^2(mod\ 32)

17²=289, if we divide 289 with 32 it will gives us remainder 1, thus.

3^8\equiv 1(mod\ 32)

Multiply both the sides by 3³.

3^8\times 3^3\equiv 3^3(mod\ 32)

3^{11}\equiv 27(mod\ 32)

Hence, the value of x is 11.

7 0
4 years ago
Multiply each polynomial <br> 1.). (x+5)(x+4)<br> 2.). (x-7)(x-4)
bija089 [108]

Answer:

1)x^2+9x+20

2)x^2-11x+28

1) explaination:x*x+4x+5x+5*4=)x^2+9x+20

2 explaination: x*x+-4*x+-7*x+-7*-4=)x^2-11x+28

8 0
4 years ago
The Henry family drove 276.5 miles on the family vacation. They used 7.9 gallons of gas. How many miles per gallon of gas did th
Xelga [282]

Answer:To solve this problem you would have to write 276.5 over 7.9 and divide the numerator and denominator by 7.9 since you want miles per gallon (it should have a denominator of 1 after you divide). When you do this you will get 35, so the Henry family got 35 miles per gallon of gas on the trip.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Help me solve this and get marked branliest:
bazaltina [42]

Answer:

75°

Step-by-step explanation:

Let's find the size of x°

BCFE has four sides so the sum of its angles sizes is 360°.

● CBE + 110 + 110 + CFE = 360

CFE is equal to 65° since they have the same vertex

● CBE + 220 + 65 = 360

● CBE + 285 = 360

● CBE = 360-285

● CBE = 75

CBE and x° have the same size since they share the same vertex.so:

● x° = 75°

4 0
3 years ago
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