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Serga [27]
3 years ago
5

Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
6 0

Answer:

a = E

b = A

c = B

d = D

I solved this using my graphic calculator.

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Dan earns £360 over the course of a five-day week. How much is that per day?
geniusboy [140]

Answer:

£72

Step-by-step explanation:

So here you basically want to take to total amount earned and divide it by the amount of days worked and you should get your daily amount paid. (360/5=72)

5 0
3 years ago
Find an equation for the line that passes through the points (5, 2) and (-3,6).
RUDIKE [14]

Answer:

y = -1/2x + 6

Step-by-step explanation:

Find the slope

( 5 , 2) ( -3 , 6)

m =( y2 - y1 )/ ( x2 - x1)

x1 = 5

y1 = 2

x2 = -3

y2 = 6

m = ( 6 -2)/(-3 - 5)

m = 4/-8

m = - 1/2

Substitute m into the equation of a line

y = mx + c.

y = -1/2x + c

Substitute any of the two points given into the equation

Let's pick (2 ,5)

x = 2

y = 5

y = -1/2x + c

5 = -1/2(2) + c

5 = -1*2/2 + c

5 = -2/2 + c

5 = -1 + c

c = 5 + 1

c = 6

y = -1/2x + 6

The equation of the line is

y = -1/2x + 6

4 0
4 years ago
I’m lost please help
vagabundo [1.1K]

Answer:

See proof below

Step-by-step explanation:

Two triangles are said to be congruent if one of the 4 following rules is valid

  1. The three sides are equal
  2. The three angles are equal
  3. Two angles are the same and a corresponding side is the same
  4. Two sides are equal and the angle between the two sides is equal

Let's consider the two triangles ΔABC and ΔAED.

ΔABC sides are AB, BC and AC

ΔAED sides are AD, AE and ED

We have AE = AC and EB = CD

So AE + EB = AC + CD

But AE + EB = AB and AC+CD = AD

We have

AB of ΔABC  = AD of ΔAED

AC of ΔABC =  AE of ΔAED

Thus two sides the these two triangles. In order to prove that the triangles are congruent by rule 4, we have to prove that the angle between the sides is also equal. We see that the common angle is ∡BAC = ∡EAC

So  triangles ΔABC and ΔAED are congruent

That means all 3 sides of these triangles are equal as well as all the angles

Since BC is the third side of ΔABC and ED the third side of ΔAED, it follows that

BC = ED  Proved

5 0
2 years ago
Find the value for the following determinant.<br><br><br><br> -32<br> -42<br> 42
hjlf
Using the rule for 2x2 matrices,

\begin{vmatrix}a&b\\c&d\end{vmatrix}=ad-bc

the determinant for your matrix is

\begin{vmatrix}5&-4\\8&2\end{vmatrix}=5\times2-(-4)\times8=42
4 0
4 years ago
Read 2 more answers
Graph the function. label the vertex and axis of symmetry<br> f(x) = -6x^2 - 4x - 5
VMariaS [17]

Answer:

Vertex is (-1/3, -13/3)

Axis of symmetry is x = -1/3

Step-by-step explanation:

For the vertex, you need to change it into vertex form which is y = a(x - h)^2 + k

Vertex form for this equation is:

Y = -6(x + 1/3)^3 - 13/3

To find the vertex, the formula is (h,k)

So, ( -1/3, -13/3)

6 0
3 years ago
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