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brilliants [131]
3 years ago
11

Find the area of the isosceles triangle

Mathematics
2 answers:
AveGali [126]3 years ago
4 0
175m^2
I got the by multiplying 1/2, by the base (14), by the height (25).

1/2 * 14 * 25
icang [17]3 years ago
4 0
First we are gonna find the height using trigonometry.

h^2 = 25^2 - 7^2
h = 24

Height is 24m

Now find area using 1/2 x b x h

14/2 x 24 = 168 m^2

Therefore area is 168m^2
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What is the equation of a line passing through (-3,7) and having a slope of -1/5?
g100num [7]
We'll use the slope-intercept form y = mx + b. Where m is the slope and b is the y-intercept.

We know the slope, -1/5. Now the equation looks like y = (-1/5)m + b

To find the y-intercept, plug in the ordered pair that the question gave us into our equation and solve for b.

7 = (-1/5)(-3) + b
7 = 0.6 + b
6.4 = b
b = 6 2/5

So, the y-intercept will be at 6 2/5.
4 0
3 years ago
Please answer this question I need it i. Vertex and standard form.
Brums [2.3K]

Equation :

This parabola is facing downwards and highest point of the parabola is it's vertex.

Highest point is (-2,2)

so the vertex is (-2,2)

The graph is passing through (-1,0)

Equation in vertex form is

y = a(x - h) {}^{2}  + k

0 = a( - 1 + 2) {}^{2}  + 2 \\ 0 =a (1) {}^{2}  +2 \\  0 = a + 2 \\ a =  - 2

Substitute back in Equation

y =  - 2(x  + 2) {}^{2}  + 2

the graph has two x intercepts -1 and -3

that means (x+1) and (x+3) are the factors

multiply factors to get the equation in standard form

-2(x + 1)(x + 3) = 0 \\ -2(x {}^{2}  + x + 3x + 3) = 0 \\  -2( x {}^{2}  + 4x + 3) = 0

-2x^2-8x-6=0

4 0
3 years ago
Use the parabola you graph the quadratic function y = x^2 + 4x + 5 graph the parabola by first plotting its vertex and then plot
SVETLANKA909090 [29]

Answer:

Vertex : (-2,1)

other points : (0,5) & (-4,5)

Step-by-step explanation:

6 0
3 years ago
Can somebody help me do this?
saveliy_v [14]

Answer:

a) Point Q

b) Sides SQ,RQ

c)Angle RQT and Angle Q

Step-by-step explanation:

6 0
3 years ago
Harry took total of 27 quizzes over the course of 3 weeks
nikitadnepr [17]

Answer:

9 quizzes a week

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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