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3 years ago

Please HELP ASAP 31 points on

Mathematics

1 answer:

nlexa [21]3 years ago

4 0

Answer:

It's way too small and I can't read it...

Step-by-step explanation:

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I need the formula can you please help me

Ahat [919]

Multiply the diagonals together and then divide by two

4 x 6 / 2

so the answer would be 12yd

5 0

3 years ago

Read 2 more answers

What is the image of (-3,-7)(−3,−7) after a reflection over the x-axis?

kodGreya [7K]

Answer is ( -3, 7)
Rule for reflection over x axis is
x , y to x, -y
Since the y value is already negative it will change to positive

See attachment

5 0

2 years ago

In Δ ABC and ΔXYZ ,∠B=∠X=90 and BC=XZ .What additional information is required to make Δ ABC congruent to ΔXYZ by R.H.S conditio

Pani-rosa [81]

Answer:

AC = XY

Step-by-step explanation:

A triangle is a polygon with three sides and three angles. The types of triangles are scalene triangle, equilateral triangle, right angled triangle and obtuse triangle.

Two triangles are said to be congruent if all the three sides and three angles of one triangle is equal to the three sides and three angles of the other triangle.

In Δ ABC and ΔXYZ ,∠B=∠X=90. This means that triangle ABC and triangle XYZ are right angled triangle since one of their angles is 90 degrees.

The hypotenuse is the side opposite to right angle (90 degrees).

Therefore AC is the hypotenuse of triangle ABC and YZ is the hypotenuse of triangle XYZ.

If the hypotenuse and one leg of a right angled triangle is equal to the hypotenuse and leg of another right angled triangle, then the two triangles are congruent by RHS rule.

Since BC = XY, for Δ ABC congruent to ΔXYZ by R.H.S condition, the hypotenuse have to be equal, i.e. AC = XY

7 0

3 years ago

Question

RideAnS [48]

Answer:

Step-by-step explanation:

There are 9 letters, which contains 2Qs, 3Ls and 4Bs.

If the 9 letters are distinct, the number of permutations they have will be 9!.

! is the factorial sign.

9! = 9*8*7*6*5*4*3*2*1

HOWEVER, we have some identical elements, so we need to get rid of the permutations of the same letters.

Thus we have:

$\dfrac{9!}{2!*3!*4!} =\dfrac{9*8*7*6*5}{2*3*2*1} = \dfrac{9*4*7*5}{1} = 63*20=1260$

The answer is D

6 0

3 years ago

Evaluate [(51 + 3) − 3^2] ÷ 9 ⋅ 2.

vampirchik [111]

$\frac{51+3-3^2}{9*2 }$
Use PEMDAS
$\frac{54-3^2}{9*2}$

$\frac{54-9}{9*2}$

$\frac{45}{9*2}$

$\frac{45}{18}$

Simplify the fraction

Final answer:
$\frac{5}{2} ~or~ 2.5$

6 0

4 years ago

Read 2 more answers