Plz help me with this

Can a triangle have angle measures as 140,43, and 7

Mariulka [41]

The angles in a triangle always add up to exactly 180 degrees. To see if this can be a triangle, add up the given angle measures. If the sum is not 180, then it cannot be a triangle.

140+43+7=190

A triangle CANNOT have the angles measures as 140, 43, and 7.

Hope this helps!!

3 0

3 years ago

Someone help please!!!

Sati [7]

Answer:

y intercept = -5 

slope= 4 

equation: y = 4x - 5

EXPLANATION:

FIRST, you must write the formula for a linear graph , which is y = m(x) + c

where y is any y component and x is it's corresponding x component , m is the gradient or slope and c is the constant or y intercept.

SOLUTION:

y = mx + c

finding the gradient (m)

m = y2 - y1

x2 - x1

=( (-1)-(-5) ) ÷ (1-0)

= -1+5 ÷ 1

= 4

Therefore, the slope is 4

finding the y intercept.

y = 4x + c

in the above equation, I substituted the value I had for the slope or the gradient or m.

SO NOW IM ABOUT TO FIND C

TO FIND C, YOU MUST FIRST PICK A CORRESPONDING Y AND X COMPONENT.

I CHOOSE MY Y = 3 and X = 2

Now I'm going to substitute those values into the formula.

(3) = 4(2) + C

since it's an equation with one variable, no need for simultaneous equations.

3 = 8 + c

3-8 = c

-5 = c

 

SO THATS HOW WE ARRIVED AT -5 AND 4.

 WITH THAT, the equation of the line is y = 4x - 5.

I HOPE IT WAS HELPFUL.

4 0

3 years ago

Franklin Construction Company build a sidewalk around two sides of a new library, as shown in the figure. what is the area of th

PtichkaEL [24]

Answer:

$630.36\ ft^2$

Step-by-step explanation:

we know that

To find out the area of the sidewalk, multiply the length by the width of the sidewalk

The width of the sidewalk is equal to

$113.4\ ft-110\ ft=3.4\ ft$

or

$75.4\ ft-72\ ft=3.4\ ft$

The area is equal to

$113.4(3.4)+72(3.4)\\385.56+244.8\\630.36\ ft^2$

4 0

3 years ago

Find the percent of change when the price of a radio changes from $40.00 to $44.00

Kamila [148]

Answer:

b

Step-by-step explanation:

The difference between price is 4 dollars and 4 dollars is 10 percent of 40, therefore it changes by 10%

4 0

3 years ago

In Mrs. Trainer's math class, Siobhan's first five math quiz scores are 70, 98, 83, 66, and 41. Siobhan takes the sixth math qui

nasty-shy [4]

The answer will be a because if you add 70 +98+83+66+41 divided by 5 is 325.2 and I'd u add 81 and divide it by 6 then it will equal 371.5 so it will increase

8 0

3 years ago