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3 years ago

Please please help i need a better grade

Mathematics

1 answer:

tekilochka [14]3 years ago

3 0

Answer:

The first one is (-3,2)

The second one is (3,4)

The third one is (1,-1)

The last one is (-4,-4)

I HOPE THIS BRINGS UP YOUR GRADE! :)

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Solve this equation 6(4.5y-12)=9

irinina [24]

6(4.5y - 12) = 9

(4.5y - 12) = 9/6

4.5y - 12 = 1.5

4.5y = 1.5 + 12

4.5y = 13.5

y = 13.5/4.5

y = 3

6 0

3 years ago

In ΔCDE, \overline{CE}

abruzzese [7]

Answer:

$m\angle CDE=14^o$

Step-by-step explanation:

we know that

An exterior angle of a triangle is equal to the sum of the opposite interior angles.

see the attached figure to better understand the problem

∠DEF=∠ECD+∠CDE

substitute the given values

$(4x+5)^o=(x+9)^o+(x+8)^o$

solve for x

Combine like terms

$(4x+5)^o=(2x+17)^o$

Group terms

$4x-2x=17-5$

$2x=12$

$x=6$

Find the measure of angle CDE

$m\angle CDE=(x+8)^o$

substitute the value of x

$m\angle CDE=(6+8)=14^o$

8 0

3 years ago

Use Special Right Triangles to solve for the value of y. Leave your answer in SIMPLIFIED radical form.

Scorpion4ik [409]

We can use the sine function and tangent function in order to solve for x and y:

$\begin{gathered} sin(\theta)=\frac{opposite}{hypotenuse} \\ sin(60)=\frac{15}{x} \\ x=\frac{15}{sin(60)} \\ x=10\sqrt{3} \end{gathered}$ $\begin{gathered} tan(\theta)=\frac{opposite}{adjacent} \\ tan(60)=\frac{15}{y} \\ y=\frac{15}{tan(60)} \\ y=5\sqrt{3} \end{gathered}$

7 0

1 year ago

The washing machine had a selling price of P4,792. It had been marked up by P1,248. What was the cost? What was the mark-up rate

LUCKY_DIMON [66]

Answer:

The cost of the washing machine is P 3,544

The mark-up rate is 35.21%

Step-by-step explanation:

1. We want to calculate the cost

Mathematically, this is the difference between the selling price and the mark up

We have this as;

4,792 - 1,248 = P 3,544

2. Here, we want to calculate the mark-up rate

Mathematically, this is the percentage of mark-up

That is;

mark-up/cost price * 100%

: 1,248/3,544 * 100% = 35.21%

5 0

3 years ago

Y=mx+b form of x=5 and y=2

Anestetic [448]

5/1+2 and that the answer

8 0

3 years ago