All categories

3 years ago

Pls help due ASAP zhudhdngdhdhhe

Mathematics

2 answers:

marysya [2.9K]3 years ago

8 0

Answer:

x=21.25

Step-by-step explanation:

triangle = 180 degree angle

knowns:

75 degrees and two opposing sides with same length have same angles

so:

180-75= 105

2(2x+10)=105

4x+20=105

4x=105-20

4x=85

x=85/4

x=21.25

Colt1911 [192]3 years ago

6 0

Answer:

C. 21.25 ( i'm assuming that C. says 21.25)

Step-by-step explanation:

Since it's an isosceles triangle, the two bottom angles are equal to one another. So 180 - 75 = 105. 105 ÷ 2 = 52.5

2x + 10 = 52.5

2x = 42.5

x = 21.25

You might be interested in

A=1/2w(b+c) solve for c

kaheart [24]

9514 1404 393

Answer:

c = 2A/w -b

Step-by-step explanation:

Multiply by the inverse of the coefficient of the parentheses.

$A=\dfrac{w}{2}(b+c)\\\\\dfrac{2A}{w}=b+c\\\\\boxed{c=\dfrac{2A}{w}-b} \qquad\text{subtract $b$}$

3 0

3 years ago

Divide the given question:<br><img src="https://tex.z-dn.net/?f=12.36%20%5Cdiv%200.9" id="TexFormula1" title="12.36 \div 0.9" al

Marina CMI [18]

$12.36 \div 0.9 = 13.73$

3 0

2 years ago

+<br> N<br> Complementary and supplementary

Sauron [17]

What are you asking?

5 0

3 years ago

If alpha and beta are roots of quadratic equation x^2 - p( x + 1) - c = 0 then (alpha + 1 )( beta + 1) =?

Harrizon [31]

Answer:

Step-by-step explanation:

x²-px-p-c=0

sum of roots=α+β=-b/a=p

product of roots=αβ=c/a=-p-c

(α+1)(β+1)=αβ+α+β+1=-p-c+p+1=-c+1

8 0

4 years ago

A rectangle has a length that is 5 inches greater than its width, and its area is 104 square inches. The equation (x + 5)x = 104

Art [367]

Answer:

The answer is 8.

Step-by-step explanation:

We need to use the quadratic formula, that is ax2+bx+c=0

Where

$x=\frac{-b +/- \sqrt{b^{2}-4*a*c } }{2a}$

For the given equation x2+5x-104=0 we have

a=1, b=5, c= -104

If you solve that, we will have x=-13. x=8, two answers,

The first one, by being negative does not have physical sense (there are no negatives quantities when you measure the length of something)

So we use the anwser x=8

7 0

3 years ago

Read 2 more answers