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zmey [24]
3 years ago
11

4(a + 2) = -4 whats A

Mathematics
2 answers:
OLga [1]3 years ago
4 0
The answer is -3 because -3+2=-1 then -1(4)=-4
weeeeeb [17]3 years ago
3 0

Answer:

Step-by-step explanation:

use the distributive property first; distribute 4 TO a+2

4(a+2) = 4a+8

once you have got your answer, make the new equation

4a + 8= - 4

Now, solve the equation

4a + 8= - 4

4a = -4-8

4a = -12

a = -12/4   ( always remember to put the sign )

a = -3

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If m∠4 = 35, find m∠2. Explain.
Bad White [126]

Answer:

Option (1)

Step-by-step explanation:

From the picture attached,

Triangle CAB is a right triangle.

Therefore, m∠1 = 90°

Similarly, m∠ACD = 90°

m∠ACD = m∠ACB + m∠BCD = 90°

             = m∠3 + m∠4 = 90°

Since m∠4 = 35°,

m∠3 + 35° = 90°

m∠3 = 90° - 35°

        = 55°

In the triangle ABC,

m∠ACB + m∠CBA + m∠BAC = 180° [Property of a triangle]

m∠3 + m∠2 + m∠1 = 180°

55° + m∠2 + 90° = 180°

m∠2 + 145° = 180°

m∠2 = 180° - 145°

        = 35°

Since, AB║CD and BC is a transverse,

Therefore, m∠2 = m∠4 = 35° [Alternate interior angles]

Option (1) is the correct option.

4 0
3 years ago
Write an equation parallel to. Y= -5x 3 and passing through the point (3,13)
vovikov84 [41]
Y = -5x + 28
will be parallel to your equation because it has the same coefficient but will also pass through (3, 13)
3 0
3 years ago
Find the equation of a plane that is perpendicular to the vector −4i⃗ −4j⃗ −k⃗ and passing through the point (−2,−5,5)
vredina [299]

hello ....

the equation of a plane that is ;  ax+by+cz +d =0

the vector perpendicular to this plane is : V(a,b,c)

in this exercice ; a = -4  b= -4  c = -1

then: the equation of a plane that is ;  -4x-4y-z +d =0

but the plane  passing through the point (−2,−5,5) :

-4(-2)-4(-5)-(5) +d =0

23+d =0

d =-23

the equation of a plane is : -4x-4y-z-23 =0

5 0
4 years ago
Can someone PLEASE HELP ME ASAP
stepan [7]
11 hours because you cross multiply and then divide by 60 since time
8 0
3 years ago
Read 2 more answers
(01.02 MC)
RUDIKE [14]

Answer:

d. 3 to the power of 2 multiplied by 1 whole over 4, the whole squared. = 3 to the power of 4 multiplied by 1 squared over 4 squared. = 81 over 16.  

Step-by-step explanation:

This is an exercise in PEMDAS, the order of arithmetic operation:  

parentheses > exponents > multiplication and division > addition and subtraction.  

[(3² × 5⁰)/4]² = [(9 × 1)/4]² = (9/4)² = 81/16  

   3⁴ × 1²/4² = 81 × 1/16                 = 81/16  

a. is wrong. 3¹ × 1²/4² = 3 × 1/16 = 3/16

b. is wrong. [(3² × 0)/4]² = [(9 × 0)/4]² = (0/4)² = 0² = 0  

c. is wrong. [(3² × 0)/4]² = 0

7 0
3 years ago
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