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Ierofanga [76]
3 years ago
8

What is the value of x with clear working out please?

Mathematics
2 answers:
slavikrds [6]3 years ago
6 0

let me add a bit more material, to the great reply above, which is absolutely correct.

we know that AB = AC, that means that triangle ABC is an isosceles and that its two angles at the "base" are congruent, namely the blue angles in the picture.

Since all flat-lines are 180°, then we know the angle to the left of point B is 180 - 44 - 23, and that angle is a corresponding angle with 67 + x.

nirvana33 [79]3 years ago
5 0

Answer:

Answer: <u> </u><u>x</u><u> </u><u>is</u><u> </u><u>4</u><u>6</u><u>°</u><u> </u>

Step-by-step explanation:

• Let's first find Angle ACB

{ \rm{ \angle ACB + 23 \degree + 90 \degree = 180 \degree}} \\  \\ { \rm{ \angle ACB = (180 - 90 - 23) \degree}} \\  \\ { \underline{ \rm{ \:  \angle ACB = 67 \degree}}}

• From alternative angles, x = Angle BAC.

• Since AB = AC, then Angle ABC = Angle ACB

{ \rm{x +  \angle ABC +  \angle ACB = 180 \degree}} \\  \\ { \rm{x + 67 \degree + 67 \degree = 180 \degree}} \\  \\ { \rm{x + 134 \degree = 180 \degree}} \\  \\ { \boxed{ \rm{x = 46 \degree}}}

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Someone help me pls <br><br>47 as the sum of ______
Elanso [62]

9514 1404 393

Answer:

  (a) 6² +3² +1² +1² = 47

  (b) 5² +4² +2² +1² +1² = 47

  (c) 3³ +4² +2² = 47

Step-by-step explanation:

It can work reasonably well to start with the largest square less than the target number, repeating that approach for the remaining differences. When more squares than necessary are asked for, then the first square chosen may need to be the square of a number 1 less than the largest possible.

The approach where a cube is required can work the same way.

(a) floor(√47) = 6; floor(√(47 -6^2)) = 3; floor(√(47 -45)) = 1; floor(√(47-46)) = 1

__

(b) floor(√47 -1) = 5; floor(√(47-25)) = 4; ...

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(c) floor(∛47) = 3; floor(√(47 -27)) = 4; floor(√(47 -43)) = 2

3 0
3 years ago
Which expressions are equivalent to the one below? Check all that apply.
Shalnov [3]

Answer:

The answer would be A. 3.3x

Step-by-step explanation:

3.3x can be broken down as 3.3.x

3.3 equals 9 and the 'x' is multiplied to 9.

Hence, it equals to 9x.

3 0
3 years ago
What's The Answer??????????????????
Yuri [45]
f(x) =  \dfrac{x}{2} - 2

g(x) = 2x^2 + x - 3

(f + g)(x) =  \dfrac{x}{2} - 2+ 2x^2 + x - 3

(f + g)(x) = 2x^2 + \dfrac{3}{2}x - 5
7 0
3 years ago
C. 2x2
Brut [27]

Answer: D

Step-by-step explanation:

If f(x) = 4x - 2 and g(x) = 2x + 7 then which of the following gives f(g(3))?

g(3) = 2*3+7 = 6+7 = 13

f(g(3))=f(13) = 4* 13 -2= 52 -2 = 50

7 0
3 years ago
WILL MARK BRANIEST: Find the slope intercept form for the line described. Perpendicular to the line whose equation is 2x-y=-7 an
Ierofanga [76]

Answer:

y + 3 = (-1/2) x

Step-by-step explanation:

2x-y=-7

-y=-2x-7

y=2x+7

Slope m1= 2, perpendicular slope m2= -1/2

Equation of a line with perpendicular slope m2 and a point (0,-3) is

y - (-3) = (-1/2)(x - 0)

y + 3 = (-1/2) x

2y + 6 = - x

3 0
3 years ago
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