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2 years ago

MATH HELP PLEASE!!!! WILL MARK BRAINLIEST

Mathematics

1 answer:

Ierofanga [76]2 years ago

7 0

Answer:

Prime: x^2 + 17x - 30.

Difference of 2 squares: 256x^4 - 49x^2.

GCF: 4x^2 - 24x + 144.

Perfect Square trinomial: 4a^6 - 28a^3 + 49

Factoring Trinomial: b^2 + 5b - 36.

Step-by-step explanation:

1. x^2 + 17x - 30 will not factor.

2. 256x^4 - 49x^2 = (16x^2 + 7x)(16x^2 - 7x)

3. 4x^2 - 24x + 144 = 4(x^2 - 6x + 36).

4. 4a^6 - 28a^3 + 49 = (2a^3 - 7)^2.

5. b^2 + 5b - 36 = (b + 9)(b - 4).

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a shopkeeper bought two watches for rs 400.he sold them to gain 5% profit on one and another at 5% loss on other.calculate his f

jekas [21]

Answer:

0.25 % loss.

Step-by-step explanation:

Let the cost of 1 watch be rs x then the cost of the other is rs 400 - x.

Let the sp be rs y.

So we have:

y = x + 0.05x

y = (400 - x) - 0.05(400 - x)

y = 400 - x - 20 + 0.05x

y = 380 - 0.95x

So x + 0.05x = 380 - 0.95x

2x = 380

x = 190.

and y = 190 + 0.05*190 = 199.5.

So the total selling price = 2 * 199.5 = rs 399

So final loss is [ (400-399)/ 400] * 100

= 0.25 %.

8 0

3 years ago

36 is 25% of what number?

DedPeter [7]

Answer:

36 is 25% of 144

Step-by-step explanation:

25% means 25/100 or 1/4. Thus, 36 is 1/4 of 36*4 = 144

4 0

3 years ago

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A ladder is placed against a wall of a building 20m above the ground. The foot of the ladder is 15m away from the bottom of the

olganol [36]

By the Pythagorean Theorem:

L^2=20^2+15^2

L^2=400+225

L^2=625

L=25 m

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2 years ago

<img src="https://tex.z-dn.net/?f=%20%5Cboxed%7B%5Cboxed%7B%20%5Cbegin%7Barray%7D%7B%7D%5Clarge%5Ctt%20The%20%20%5C%5C%20%20%5Ct

larisa86 [58]

Distance formula

$\boxed{\sf \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}}$

Now

$\\ \tt\Rrightarrow AB=\sqrt{(3-3)^2+(-2-8)^2}=\sqrt{100}=10units$

$\\ \tt\Rrightarrow OK=\sqrt{(5-7)^2+(-2+2)^2}=\sqrt{4}=2units$

$\\ \tt\Rrightarrow LM=\sqrt{(-4-4)^2+(6+4)^2}=\sqrt{64+100}=\sqrt{164}\approx 13units$

$\\ \tt\Rrightarrow PC=\sqrt{(5-2)^2+(1-3)^2}=\sqrt{9+4}=\sqrt{13}=3.2units$

$\\ \tt\Rrightarrow QR=\sqrt{(-2+10)^2+(3-9)^2}=\sqrt{64+36}=\sqrt{100}=10units$

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2 years ago

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Need help quick time is passing!!!!!!!!!!!!!!

Arisa [49]

M=2
Y=7
m=9
a=32
t=138
h=7

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2 years ago

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