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Katena32 [7]
3 years ago
13

Please help!!!!!!!!!!!!!!

Mathematics
2 answers:
Doss [256]3 years ago
3 0
The equation would be (100-10) ÷30 your answer would be 3
nadezda [96]3 years ago
3 0
So she had 100 yards of yarn, so she already used 10. That would be 100-10=90. Now she needs to use 30 more yards. 90-30=60
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Please help?!
Anton [14]

Answer:

Δ PQT ~ Δ QRS  .....{S-S-S test for similarity}...Proof is below.

Step-by-step explanation:

Given:

In Δ PQT

PQ = 30 ft

QT = 28 ft

TP = 20 ft

In Δ QRS

QR = 15 ft

RS = 14 ft

SQ = 10 ft

To Prove:

Δ PQT ~ Δ QRS

Proof:

First we consider  the ratio of the sides

\frac{PQ}{QR}=\frac{30}{15} = \frac{2}{1}            ..............( 1 )

\frac{QT}{RS}=\frac{28}{14} = \frac{2}{1}            ..............( 2 )

\frac{TP}{SQ}=\frac{20}{10} = \frac{2}{1}            ..............( 3 )

So By equation ( 1 ), ( 2 ) and  ( 3 ) we get

\frac{PQ}{QR}=\frac{QT}{RS} = \frac{TP}{SQ}

Now in Δ PQT  and Δ QRS we have

\frac{PQ}{QR}=\frac{QT}{RS} = \frac{TP}{SQ}

Which are corresponding sides of a similar triangle in proportion.

∴ Δ PQT ~ Δ QRS  .....{S-S-S test for similarity}...Proved

8 0
3 years ago
the angle of depression from the top ski lift is 57 degrees if the vertical distance from the top and bottom ot the lift is 1200
dedylja [7]

Answer:

1200

Step-by-step explanation:

ghgvhjhv g fty ftvyuibn

7 0
3 years ago
Fill in the blanks to explain how Harry can check whether his solution is correct
Tresset [83]

<u><em>Answer is in bold</em></u>

Harry can first substitute 30 for t. He can then multiply \frac{1}{3} by 30 to get a product of 10. Since 15 is equal to 30 × 1/2, Harry's solution is not correct.

Hope this helps :)

Have a great day!

5 0
2 years ago
In Exercise, simplify the expression. <br> eln(2x+1)
Galina-37 [17]

Answer:

The simplified expression is 2x + 1  

Step-by-step explanation:

We are given the following in the question:

e^{ln(2x+1)}

We have to simplify this expression.

The logarithmic function is the inverse of the exponential function. Thus, we can write

e^{ln(2x+1)}\\=2x + 1

Thus, the simplified expression is 2x + 1

8 0
2 years ago
Can someone please please help me?? :(
salantis [7]

Answer:

-60 3/4m

Step-by-step explanation:

The diver first dives down 50 1/4m, which is represented by the -50 1/4m. He then descends another 10 1/2m down. So -50 1/4m - 10 1/2m.

-50-10=-60

-(1/4)-(1/2)= (1/4)+(1/2)

(1/4+1/2)=(2/8+4/8) you can only add with the same denominators.

=6/8 (simplifies down to 3/4)

8 0
3 years ago
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