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3 years ago

The following equation is a linear equation that has a slope of 3 and a y-intercept of positive 2:

Mathematics

1 answer:

Kryger [21]3 years ago

7 0

The y intercept in the equation is -2. What is your question?

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Identify the domain of the function shown in the graph.

Sergio039 [100]

Answer:

B = x is all real numbers

-by-step explanation:

3 0

3 years ago

IB QUESTIONS:

enyata [817]

Step-by-step explanation:

Using SOHCAHTOA

$\tan = \frac{opposite}{adjacent} \\ \tan {31}^{0} = \frac{450}{x} \\ \tan {31}^{0} = 0.6009 \\ 0.6009 = \frac{450}{x} \\ cross \: multiply \\ 0.6009x = 450 \\ divide \: both \: sides \: by \: 0.6009 \\ x = \frac{450}{0.6009}x \\ = 748.9$

Second Question Explanation:

a. The base angles of an isosceles triangle are equal so angle ABC is also 32°

but the sum of angles in a triangle = 180° therefore

let angle CAB be x

${32}^{0} + {32}^{0} + {x}^{0} = {180}^{0} \\ 64 + x = 180 \\ {x}^{0} = 180 - 64 \\ {x}^{0} = {116}^{0}$

b. If you share a triangle in half you get 2 right angles so I'll use SOHCAHTOA to find the length AB

First the base of the right angled triangle will be 20/2 = 10

$\cos = \frac{adjacent}{hypotenuse} \\ \cos {32}^{0} = \frac{10}{ab} \\ \cos32 = 0.8480 \\ 0.8480 = \frac{10}{ab} \\ ab = \frac{10}{0.8480} \\ line \: ab = 11.8$

c. To find the are we'll need to get the height first

using the right angled triangle With base 10cm and hypotenuse 11. 8 to find the height we'll use the Pythagorean theorem

${(11.8)}^{2} = {x}^{2} + {10}^{2} \\ 1324.24 = {x}^{2} + 100 \\ {x}^{2} = 139.24 - 100 \\ {x}^{2} = 39.24 \\ \sqrt{ {x}^{2} } = \sqrt{39.24} \\ x = \sqrt{39.24 } \\ x = 6.3$

now to find the area

$area \: of \: triangle = \frac{1}{2} \times base \times height \\ = \frac{1}{2} \times 20 \times 6.3 \\ \frac{20 \times 6.3}{2} \\ = \frac{126}{2} \\ 63 {cm}^{2}$

4 0

3 years ago

5. which ordered pair is a solution pf the equation y = -5x + 4

Liono4ka [1.6K]

1. Replace x with the given values and see if the equation equals the Y value:

y = -5x +4

-5(5)+4 - -25 +4 = -21

The answer is D.

2. -4 = g+1

Subtract 1 from each side:

-5 =g

The answer is C.

3. The 2nd chart is correct, ( the top one on the picture with 2) because when Tony is 5 the line is on Y = 0, when the line is on 6 it is on Y=1, which keeps Tony at 5 years older.

6 0

3 years ago

Am getting the hang of this but I still need help so may I please get help with this equation -7a+6a^2-10

blagie [28]

The factors are (a - 2) and (6a + 5) . If the expression is equal to zero, then 'a' can be 2, and 'a' can be -5/6 .

7 0

3 years ago

Read 2 more answers

What additional information is needed to prove the triangles are congruent by HL?

Rzqust [24]

Answer:

bce is 90