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3 years ago

Plsss helppppppp plsssss

Mathematics

1 answer:

MrRa [10]3 years ago

3 0

Set up an equation of ratios as shown below:

h 24 ft 4
----- = ---------- = ---
4 6 ft 1

Cross multiplying the 1st and 3rd fractions, we get h=16 ft (answer)

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Find the sum of the first 30 multiples of 8.

Anna11 [10]

Step-by-step explanation:

sum of the arithmetic sequence

a1 = 8

a2 = a1 + 8 = 8+8 = 16

...

an = 8×n

the sum of the first n elements of such a series is

n/2 × (2×a1 + (n - 1)×d]

with d being the difference between 2 consecutive elements (= the added constant).

so,

s30 = 30/2 × (2×8 + 29×8) = 15×(31×8) = 3720

3 0

2 years ago

Write as an expression " 6 times smaller than 42"

Mademuasel [1]

Answer:

42/6 or 7

Step-by-step explanation:

5 0

3 years ago

The blue line is the graph of y=-4x + 5. Use the

WARRIOR [948]

Answer:

(1,1)

Step-by-step explanation:

1=-2(1)+3

1= -2 +3

1=1

1=-4(1)=5

1=-4=5

1=1

7 0

3 years ago

Read 2 more answers

Find the inverse function of <br><br> y=x^5+9

ollegr [7]

Answer:

$\sqrt[5]{x - 9}$

Step-by-step explanation:

y=x^5+9

To find inverse function make x the subject, first:

y=x^5+9

y - 9 = x^5

x = $\sqrt[5]{y - 9}$

$y^{-1} = \sqrt[5]{x - 9}$

so inverse function of y=x^5+9 is $\sqrt[5]{x - 9}$

3 0

2 years ago

Read 2 more answers

What is this answer please help

Burka [1]

Answer:

22 x 20 is 440 ,

8x16 is 128 ,

440 - 128 is 312

Step-by-step explanation:

I THINK

8 0

3 years ago