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4 years ago

PLS HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

Vaselesa [24]4 years ago

8 0

387 customers or 930 customers

Molodets [167]4 years ago

7 0

(27+12)x10x3 and 1,170

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What are the integer solutions of the inequality |x| < 3?

tigry1 [53]

D. I think im not sure with this one

8 0

3 years ago

Does anyone know this?

weeeeeb [17]

Answer:

BC = 10.24

Step-by-step explanation:

You can use the Pythagoras theorem for this question

$a^{2}$ + $b^{2}$ = $c^{2}$

a = 8cm

b = ???

c = 13cm

We will solve for B (length BC)

$a^{2}$ + $b^{2}$ = $c^{2}$

$8^{2}$ + $b^{2}$ = $13^{2}$

Rearrange for b

$b^{2}$ = $13^{2}$ - $8^{2}$

$b^{2}$ = 105

b = $\sqrt{105}$

b = 10.24

7 0

3 years ago

What is x for 7.3x + 22 = 2.1x -22.2

s344n2d4d5 [400]

X=-8.5
u would solve by isolating x

3 0

3 years ago

By what percent will the product of two numbers change, if the first number increases by 70%, while the second number decreases

erica [24]

Answer:

The product of two numbers changes by 2% when the first number increases by 70%, while the second number decreases by 40%.

Step-by-step explanation:

Let first number be x and second number be y .

Then product of x and y = xy ......(1)

Given the first number increases by 70%, while the second number decreases by 40% this means,

x is increased by 70% that is

increased value of x = x + 0.7(x) = 1.7 x

Similarly y is decreases by 40% that is

decreased value of y = y - 0.4(y) = 0.6y

New product will be = (increased value of x )( decreased value of y)

= (1.7x)(0.6y)

=1.02xy

Changed Percentage = $\dfrac{\text{new value - original value}}{{\text{original value}}}\times 100$

Substitute the values, we get,

Changed Percentage = $\frac{1.02xy-xy}{xy}\times 100$

Changed Percentage = $\frac{0.02xy}{xy}\times 100$

Changed Percentage = $0.02\times 100$

Changed Percentage = $2\%$

Thus, the product of two numbers changes by 2% when the first number increases by 70%, while the second number decreases by 40%.

5 0

4 years ago

If x = 10, find the value of:<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B2%20%7Bx%7D%5E%7B2%7D%28x%20-%205%29%20%7D%7B10x

vesna_86 [32]

Answer:

$10$

Step-by-step explanation:

$\frac{2(10)^2(10-5)}{10(10)}$

Square the 10.

$\frac{2(100)(10-5)}{10(10)}$

Subtract 10 with 5.

$\frac{2(100)(5)}{10(10)}$

Multiply the numbers in the numerator.

$\frac{2(500)}{100}$

$\frac{1000}{100}$

Divide 1000 with 100.

$=10$

4 0

3 years ago

Read 2 more answers