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lara [203]
3 years ago
8

PLEASE HELP ME.

Mathematics
2 answers:
lakkis [162]3 years ago
8 0
<h3>Answer is  y = -x+4  (choice D)</h3>

======================================

Work Shown:

Find the slope of the line through

(x1,y1) = (0,4) and (x2,y2) = (3,1)

Use the slope formula

m = (y2 - y1)/(x2 - x1)

m = (1 - 4)/(3 - 0)

m = (-3)/(3)

m = -1

The y intercept is 4, so b = 4. This is where the graph crosses the vertical y axis. The y intercept is always where x = 0.

With m = -1 and b = 4, we go from y = mx+b to y = -1x+4 which is y = -x+4

Vladimir79 [104]3 years ago
7 0
The answer is D. Y=-x+4
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What is the value of the expression 2 + 3^2 * (5 -1)
alexgriva [62]

Answer:

38

Step-by-step explanation:

We are to solve for the expression;

2 + 3² × (5 - 1)

We should aply BODMAS here!

So starting with the brackets;

2 + 3² × 4

Then solving the multiplication part;

3² × 4 = 9 × 4 = 36

Finally adding the integers;

2 + 36 = 38

8 0
3 years ago
Consider the two triangles. Triangles A B C and H G I are shown. Angles A C B and H I G are right angles. The length of side A C
zheka24 [161]

Answer:

Both are similar by SAS similarity.

This SAS similarity is equivalent to the congruence.

Step-by-step explanation:

Step 1:

To prove that ACB and HIG as similar triangles.

We have to look upon the corresponding sides.

SAS= Side angle sides , there the angle must be in between two sides.

\angle ACB = \angle HIG

Lets work on the corresponding sides.

IG/AC = IH/AC

\frac{9}{15} = \frac{12}{20}

Reducing each to lowest form, we divide numerator and denominator by 3 for the 1st fraction and by 4 for the 2nd fraction.

We have

\frac{3}{5} = \frac{3}{5}

Both sides are equal.

So its proved that both are similar with SAS similarity theorem.

8 0
2 years ago
Read 2 more answers
An observer on top of a 50-foot tall lighthouse sees a boat at a 7° angle of depression. To the nearest foot, how far is the boa
Yuri [45]

Answer:

407.22 foot is the boat from the base of the lighthouse

Step-by-step explanation:

Given the statement: An observer on top of a 50-foot tall lighthouse sees a boat at a 7° angle of depression.

Let x foot be the distance of the object(boat) from the base of the lighthouse

Angle of depression = 7^{\circ}

\angle CAB = \angle DCA = 7^{\circ}       [Alternate angle]

In triangle CAB:

To find AB = x foot.

Using tangent ratio:

\tan (\theta) = \frac{Opposite side}{Adjacent Base}

\tan (\angle CAB) = \frac{BC}{AB}

Here, BC = 50 foot and \angle CAB =7^{\circ}

then;

\tan (7^{\circ}) = \frac{50}{x}

or

x = \frac{50}{\tan 7^{\circ}}

x = \frac{50}{0.1227845609}

Simplify:

AB = x = 407.217321 foot

Therefore, the boat from the base of the light house is, 407.22'





5 0
3 years ago
How do you write 3/2 as a percentage?
sweet [91]
= 1.5 
<span>Move decimal point to right two places, to change into percent </span>
<span>= 150%</span>
4 0
3 years ago
Use the graph below to answer the question.
Elina [12.6K]

Answer:

0

Step-by-step explanation:

edg 2020

6 0
2 years ago
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