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Lelu [443]
2 years ago
15

Witch expersson is equivalent to 4x-5?

Mathematics
1 answer:
barxatty [35]2 years ago
7 0

Answer:

Uh where are the other expressions?

Step-by-step explanation:

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Perform the modular arithmetic. (7 · 15) (mod 4)
Reika [66]

We could do it by first writing

7\cdot15=(4+3)\cdot(4+11)=4^2+14\cdot4+33

so that

7\cdot15\equiv4^2+14\cdot4+33\equiv33\pmod4

and since 33=32+1=8\cdot4+1, we have

7\cdot15\equiv33\equiv1\pmod4

# # #

Alternatively, we can just compute the product and take it mod 4:

7\cdot15=105=104+1=26\cdot4+1

and so we get the same result of 1.

4 0
3 years ago
WILL GIVE BRAINLIEST IMMEDIATELY!!! INSTANT BRAINLY!! PLS HELP
lys-0071 [83]

Answer:

The two column proof is presented as follows;

Statement                   {}                  Reason

1. Parallelogram SUPN \overline {SR}⊥ \overline {UN} {}   1. Given

and \overline {MP}⊥ \overline {UN}

2. ∠SRU = ∠PMN = 90°   {}                 2. Definition of perpendicular lines

3. ∠SRU ≅ ∠PMN            {}                 2. Definition of congruency

4. \overline {UP} ║ \overline {SN}                      {}                4. Opposite sides of a parallelogram are                                            {}                                                               congruent

5. ∠SNR ≅ ∠PUM             {}               5. Alternate interior angles are congruent

6. \overline {UP} ≅ \overline {SN}                      {}               6. Opposite sides of a parallelogram are                                            {}                                                              congruent

7. ΔPMU ≅ ΔSRN                 {}           7. By AAS rule of congruency

By the Angle-Angle-Side (AAS) rule of congruency, we have that, if two angles and a corresponding adjacent side (∠SRU ≅ ∠PMN, ∠SNR ≅ ∠PUM, \overline {UP} ≅ \overline {SN})  of two triangles (ΔPMU and ΔSRN) are congruent, then the the two triangles are also congruent (ΔPMU ≅ ΔSRN)

Step-by-step explanation:

5 0
3 years ago
Which expression is prime? A) x2 - 6x + 9 B) x2 + 16x + 64 C) 4x2 + 20x + 25 D) 9x2 - 30x - 25
dlinn [17]
D is a prime polynomial. 

The best way to figure this out is by attempting to factor them all. Each of them factors into perfect squares except for D. 

A)
x^2 - 6x + 9 = (x - 3)^2

B) 
x^2 + 16x + 64 = (x + 8)^2

C)
4x^2 + 20x + 25 = (2x + 5)^2

D we can also tell won't have a perfect square like that because it ends in a negative number. No number multiplied by itself is negative. 
4 0
3 years ago
Read 2 more answers
The distance between two cities on a map measures 3.75 inches.The scale on the map shows 2 inches is equal to 50 miles.How many
Ede4ka [16]

Answer:93.75 miles

Step-by-step explanation:

Given

Distance between two cities is 3.75\ inches

and Map 2 shows 2 inches is equal to 50\ miles

So each inch is equal to 25\ miles

So 3.75\ in. measures

\Rightarrow =3.75\times 25=93.75\ miles

So cities are 93.75\ miles apart

4 0
3 years ago
Evaluate(-4+3)-(2-6)=
arlik [135]

Answer: 3

Step-by-step explanation:

Simplify the expression.

(-4+3) - (2-6)

-4+3 = -1

2-6 = -4

Subtract: -1 - (-4) = 3

3 0
3 years ago
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