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3 years ago

I need help on this. please help

Mathematics

1 answer:

11111nata11111 [884]3 years ago

6 0

Answer:

Step-by-step explanation:

It is 1.5 for it it is good

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An architect planned to construct two similar stone pyramid structures in a park. The figure below shows the front view of the p

Sav [38]

Since the architect wants similar figures, it comes from the definition of similar triangles that the ratio of corresponding sides (all 3 sides) should be equal.

So,

$\frac{7.5}{6}= \frac{5}{4}= \frac{10}{CB}$ .

Let's find CB.

$\frac{7.5}{6} =\frac{5}{4}= \frac{10}{CB}\\ 1.25=1.25=\frac{10}{CB}\\ 1.25=\frac{10}{CB}\\ 1.25CB=10\\CB=\frac{10}{1.25}\\ CB=8$

So, CB should be 8. Option C is correct.

ANSWER: Change the length of side CB to 8 feet

3 0

3 years ago

Read 2 more answers

A 45 foot ladder is leaning against a building. If the bottom of the ladder is 27 feet from the base of the building, how tall i

taurus [48]

Answer:

The height of building to the nearest foot is h = 36 foot

Step-by-step explanation:

We have given,

Length of ladder leaning against a building, l = 45 foot

Bottom length between ladder and the building , b = 27

Now, we need to find the height of building to the nearest foot.

Let the height of building be h.

Using Pythagoras theorem,

$l^{2} = b^{2} +h^{2}$

Here, l = 45 , b = 27 and h =?

So,

$45^{2} = 27^{2} +h^{2}$

h² = 45² - 27²

h = √(45² - 27²)

h = 36

The height of building to the nearest foot is h = 36 foot

8 0

3 years ago

Read 2 more answers

Joelle has $15.75. She spent $6.38 at the store.

Alborosie

X + 6.38 = 15.75 would be the answer
x=9.37
for the first option, you are not adding 15.75 and x together.
for the second option, it is correct, because in the problem, it is giving the operation, 15.75-6.38=x. when you turn it do inverse operation, you get x + 6.38 = 15.75.
for the third option, it doesn't make sense and it's not doing what the problem is asking for.
for the fourth option, you are not multiplying. you are subtracting 15.75 by 6.38 to get x.

4 0

3 years ago

Read 2 more answers

Solve for y. 72/y=3 simplify

Lera25 [3.4K]

Answer:

the answer is 24

Step-by-step explanation:

72/y=3

72/3

8 0

3 years ago