4 years ago

Solve: 3x-y= 4 2x-3y =-9

Mathematics

1 answer:

slavikrds [6]4 years ago

4 0

Put in 9x4x3x2=216 easy 2 solve but hard 2 find

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An obtuse triangle has two angles 45 n 18 ,and a third unknown angle theta what's the value of the unknown angle

zlopas [31]

Answer:

An obtuse triangle has two angles 45 and 18. The value of the unknown angle is $117^{\circ}$

Solution:

Given that two angles of an obtuse triangle is 45 and 18.

Third angle is θ

We are asked to find the value of third unknown angle theta

According to angle sum property of triangle, sum of three angles of triangle is $180^{\circ}$

This means in our case sum of 45, 18 and θ should be $180^{\circ}$

$\begin{array}{l}{=>45+18+\theta=180} \\ {=>\theta=180-63=117^{\circ}}\end{array}$

Hence value of unknown third angle of an obtuse triangle is $117^{\circ}$

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4 years ago

Write an algebraic equation for this tape diagram. Then determine the value of x. You may use a calculator.

tresset_1 [31]

Answer:

3× + 16 = 22.75

3× = 22.75 - 16

3x = 6.75

3 3

x = 2.25

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3 years ago

A robot that makes _/6 of a boat per day will make 5 boats in 6 days

MatroZZZ [7]

For what I understand, if a robot was to make 5/6 of a boat per day, in 6 days it will have made 5 boats. The answer is 5

4 0

3 years ago

Math Help please show work please due soon uwu :3

Stels [109]

Answer: 416 in^2

Step-by-step explanation:

a. Area of the Triangle x 2 + Area of Rectangle x 3

b. 8 x 7 / 2 x 2 + 8 x 15 x 3 = 56 + 360 = 416 in^2

7 0

3 years ago

(56 x10°)-4,000,000 =

AlexFokin [52]

It should be -3999944

3 0

3 years ago