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2 years ago

HELP PLEASE I NEED THE EQUATION

Mathematics

1 answer:

Sindrei [870]2 years ago

4 0

Answer:

4y=12 is the equation

Step-by-step explanation:

it's an equilateral triangle so all three sides are equal.

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28 is what % of 20 28 is ___% of 20

Greeley [361]

28 is 140% of 20

Hope this helps!

7 0

2 years ago

an English teacher would like to divide 15 boys and 6 girls into groups each with the same combination of boys and girls and nob

tamaranim1 [39]

Answer:

7groups

Step-by-step explanation:

15+6/3=7groups

6 0

2 years ago

In ΔXYZ, ∠Y=90° and ∠X=73°. ∠ZWY=80° and XW=80. Find the length of ZY to the nearest 100th.

lawyer [7]

Answer:

Solution given:

Y=90°

∠X=73°.

∠ZWY=80°

and XW=80.

ZY=?

We know that

In right angled triangle ∆ XYZ

Tan 73= $\frac{p}{h}$

3.27= $\frac{yz}{xy}$

3.27×[xy]=yz

xw+wy= $\frac{yz}{3.27}$

wy= $\frac{yz}{3.27}$ -80...........(1)

again

In right angled triangle WYZ

Tan 80= $\frac{yz}{wy}$

5.67×wy=yz

wy= $\frac{yz}{5.67}$

yz=5.67×wy............................................(2)

Equating equation 1&2

$\frac{yz}{5.67}$ = $\frac{yz}{3.27}$ -80

$\frac{yz}{3.27}$ - $\frac{yz}{5.67}$ =80

5.67yz-3.27yz=80*5.67*3.27

2.4yz =1483.272

yz= $\frac{1483.272}{2.4}$

yz=618.03

:.y=618.03unit.the length of ZY to the nearest 100th is 618.

8 0

3 years ago

If I think of a number halve it and subtract 2 results is 10.write equations and solve it please

gayaneshka [121]

Answer:

Step-by-step explanation:

let 'x' = number

x/2 - 2 = 10

add 2 to each side to get:

x/2 = 12

cross-multiply to get:

x = 24

6 0

2 years ago

Read 2 more answers

When an object is dropped from a building (height 1450 feet )

Law Incorporation [45]

Given

$h=P(t)=-16t^2+1450$

Evaluate P(5), as shown below

$\begin{gathered} P(5)=-16*5^2+1450 \\ \Rightarrow P(5)=-400+1450=1050 \end{gathered}$

Therefore, the answer is 1050ft.

7 0

1 year ago