All categories

3 years ago

ABCD is a quadrilateral Calculate the value of x A=2x B=90 C=x D=3x

Mathematics

1 answer:

Sedaia [141]3 years ago

7 0

Answer:

X=45

Step-by-step explanation:

Sum of all angles is 360, so we have

2x+90+x+3x=6x+90=360

6x=270

X=45

You might be interested in

Find the equation of a line tangent to the circle (x−1)^2+y^2=26 at the point (2, −5).

77julia77 [94]

Center of circle is ( 1, 0).

Slope of normal passing though ( 1, 0 ) and ( 2, -5 ) is :

$m_p=\dfrac{0-(-5)}{1-2}\\\\m_p=-5$

So, slope of tangent will be :

$m_t=-\dfrac{1}{m_n}\\\\m_t=\dfrac{1}{5}$

Equation of tangent :

$y-(-5)=\dfrac{1}{5}(x-2)\\\\5y+25=x-2\\\\5y-x+27=0$

Hence, this is the required solution.

6 0

4 years ago

In parallelogram RSWY, find m

LuckyWell [14K]

Answer:

Part A) $m\angle R=110^o$

Part B) $m\angle S=70^o$

Step-by-step explanation:

we know that

In a parallelogram, opposite angles are congruent and consecutive angles are supplementary

step 1

Find the value of x

we know that

$m\angle R=m\angle W$ ----> by definition of parallelogram (opposite angles are congruent)

substitute the given values

$(5x-90)^o=(2x+30)^o$

solve for x

$5x-2x=30+90\\3x=120\\x=40^o$

step 2

Find the measure of angle R

$m\angle R=(5x-90)^o$

substitute the value of x

$m\angle R=(5(40)-90)=110^o$

step 3

Find the measure of angle S

we know that

$m\angle R+m\angle S=180^o$ ---> by definition of parallelogram (consecutive angles are supplementary)

we have

$m\angle R=110^o$

substitute

$110^o+m\angle S=180^o$

$m\angle S=180^o-110^o$

$m\angle S=70^o$

8 0

3 years ago

Can you help me find the value of X?

Rashid [163]

Answer:

x ≈ 4.1 cm

Step-by-step explanation:

The side (z) opposite the 42° triangle can be found from the relation ...

z/(3.6 cm) = tan(42°)

z = (3.6 cm)·tan(42°) ≈ 3.2415 cm

The relationship between z and x is ...

z/x = cos(38°)

x = z/cos(38°) ≈ 4.1135 cm

x ≈ 4.1 cm

7 0

3 years ago

Complete the explanation on how you can use base-ten blocks to find 1.59 + 2.18. First

Andreyy89

Answer:

Let us consider we are given.1.54 and 2.37.

So here for 1.54 you can do one set of the 100 and then 5 tenths and 4 hundredths.as well as for the 2.37 you can to 2 hundreds and 3 tenths as well as the 7 hundredths. So here we are adding these numbers 1.54 + 2.37 is 3.91.so answer is 3.91. You can do 3 hundreds and 9 tenths and 1 hundredths.

Step-by-step explanation:

7 0

3 years ago

Please help name brainliest

kvasek [131]

Answer:

20 days

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers