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3 years ago

PLZ HELP ME ITS 30 POINTS PLZ HELP ME ITS 30 POINTS

Mathematics

2 answers:

ASHA 777 [7]3 years ago

7 0

Answer:

Step-by-step explanation:

Alexandra [31]3 years ago

5 0

Answer:

thankssss

Step-by-step explanation:

You might be interested in

In parallelogram QRST QS RT Is QRST a rectangle ?

fomenos

Answer:

The correct option is A.

Step-by-step explanation:

It is given that the QRST is a parallelogram and the diagonals QS and RT are congruent.

According to the property of parallelogram if the length of diagonals are same, then the parallelogram is rectangle. We can also prove it.

Let QRST be an parallelogram and QS=RT.

In triangles QRT and RQS.

$RT=QS$ (Diagonals)

$QR=QR$ (Common side)

$QT=RS$ (Opposite sides of the parallelogram are same)

So by SSS rule of congruence, triangle QRT and triangle RQS are congruent.

By CPCT,

$\angle R=\angle Q$

Since the sum of two consecutive angles of a parallelogram is 180 degree.

$\angle R+\angle Q=180$

$2\angle R=180$

$\angle R=90$

Therefore the measure of angle R and angle Q are 90 degree.

Similarly in triangle QST and RTS,

$RT=QS$ (Diagonals)

$ST=ST$ (Common side)

$QT=RS$ (Opposite sides of the parallelogram are same)

So by SSS rule of congruence, triangle QST and RTS are congruent.

By CPCT,

$\angle S=\angle T$

Since the sum of two consecutive angles of a parallelogram is 180 degree.

Therefore the measure of angle S and angle T are 90 degree.

Since the measure of all interior angles of QRST are 90 degree, therefore the parallelogram QRST is a rectangle.

6 0

4 years ago

Read 2 more answers

Which statements are true? Check all that apply.

tatiyna

The first and last choices are true.

First Choice:

7 of a total of 16 cells should be shaded.

Last Choice:

Double the numerator and denominator of 6:8. 12 is greater than 7 (12:16 and 7:16)

Hope it helped and I hope those are the correct answers.

8 0

3 years ago

A trampoline gym charges $6 for

zhuklara [117]

Answer:

$12

Step-by-step explanation:

Assuming you meant $6 per 1/2 hour

since by multiplying 1/2 by 2 we get 1 ( our unit rate) 6*2 = 12

whole number

fraction

12/1

Brainliest would be appreciated if this is helpful. Let me know if you have more questions

Hope this helps!

4 0

2 years ago

Umm yah i know I suck at math

nasty-shy [4]

Its D because look if u add the white and red ones its 14 and all them together is 26 so it would be 14/26

4 0

4 years ago

Angie and Brian are running a bakery. They are going to make three kinds of banana bread: regular, one with extra sugar, and one

dolphi86 [110]

Answer:

150 regular loaves

125 loaves with extra sugar

100 loaves with extra bananas.

Step-by-step explanation:

Let R represent loaves of regular bread, S represent loaves with extra sugar, and B represent loaves with extra bananas. If they have 1200 bananas, 1050 cups of sugar, and 1075 cups of flour available, the number of each type of bread that Angie and Brian can make are given by the following system of equations:

$3R+2S+5B=1,200\\3R+4S+1B=1,050\\2R+3S+4B=1,075$

Solving the linear system:

$3R+4S+1B-(3R+2S+5B)=1,050-1,200\\2S-4B=-150\\S=-75+2B\\\\3R+2*(-75+2B)+5B=1,200\\2R+3*(-75+2B)+4B=1,075\\3R+9B=1,350\\2R+10B=1,300\\\\3R+9B-1.5*(2R+10B)=1,350-(1.5*1,300)\\9B-15B=-600\\B=100\\2R+10*100=1,300\\R=150\\3*150+2S+5*100=1,200\\S=125$

They should make 150 regular loaves, 125 loaves with extra sugar, and 100 loaves with extra bananas.

7 0

4 years ago