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adoni [48]
3 years ago
7

2 sides of a triangle are congruent. The base length is unknown. The top angle is 40 degrees and the bottom left angle is x degr

ees.
What is the value of x?

40
70
140
160
Mathematics
2 answers:
ANTONII [103]3 years ago
7 0

Answer:

70

Step-by-step explanation:

both sides of the triangle are 70 because they equal 140 plus 40 is 180

Maru [420]3 years ago
6 0

Answer:

B, or, 70

Step-by-step explanation:

That other guy is smart

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What are the coordinates of the vertex for f(x) = x2 + 4x + 10?
Nady [450]
F(x) = x² + 4x + 10

f(x) - 10 = x² + 4x

perfect square:
x² + 4x + 4 ⇒ (x + 2)²

(x + 2)² = x(x+2) + 2(x+2) = x² + 2x + 2x + 4 = x² + 4x + 4

f(x) - 10 + 4 = x² + 4x + 4
f(x) - 6 = (x+2)²
f(x) = (x+2)² + 6
3 0
3 years ago
F(x)=5x^2+10x express f in standard form
Mkey [24]

Answer:  F(x) =  5x^2 + 10x

5 0
3 years ago
Of the last 100 customers entering Best Buy, 25 buy a computer. If the classical probability assessment applies, the probability
Yuliya22 [10]

Answer:

1/4

Step-by-step explanation:

The classical probability assessment works based on the principle that the probability of an event occurring is equal to the number of times the event occurs divided by total number of outcomes.

That is:

P(A) = n(A) / N

Therefore, the probability that the next customer will buy a computer will be:

P(c) = 25 / 100 = 1/4

7 0
3 years ago
Please expand the logarithmic expression: Log3(7X^3Y^2)
disa [49]
\log_37x^3y^2=\\\log_37+\log_3x^3+\log_3y^2=\\\log_37+3\log_3x+2\log_3y
8 0
3 years ago
Pleeeeese help me as fast as you can!!!
Aleonysh [2.5K]

Answer:

A. y=3x-10

C. y+6=3(x-15)

Step-by-step explanation:

Given:

The given line is 6x+18y=5

Express this in slope-intercept form y=mx+b, where m is the slope and b is the y-intercept.

6x+18y=5\\18y=-6x+5\\y=-\frac{6}{18}x+\frac{5}{18}\\y=-\frac{1}{3}x+\frac{5}{18}

Therefore, the slope of the line is m=-\frac{1}{3}.

Now, for perpendicular lines, the product of their slopes is equal to -1.

Let us find the slopes of each lines.

Option A:

y=3x-10

On comparing with the slope-intercept form, we get slope as  m_{A}=3.

Now, m\times m_{A}=-\frac{1}{3}\times 3=-1. So, option A is perpendicular to the given line.

Option B:

For lines of the form x=a, where, a is a constant, the slope is undefined. So, option B is incorrect.

Option C:

On comparing with the slope-point form, we get slope as  m_{C}=3.

Now, m\times m_{C}=-\frac{1}{3}\times 3=-1. So, option C is perpendicular to the given line.

Option D:

3x+9y=8\\9y=-3x+8\\y=-\frac{3}{9}x+\frac{8}{9}\\y=-\frac{1}{3}x+\frac{8}{9}

On comparing with the slope-intercept form, we get slope as  m_{D}=-\frac{1}{3}.

Now, m\times m_{D}=-\frac{1}{3}\times -\frac{1}{3}=\frac{1}{9}. So, option D is not perpendicular to the given line.

8 0
3 years ago
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