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4 years ago

10

please answer i will answer any question and mark you as brain lest it gives you 50 points answer both for 100

1 answer:

Reptile [31]4 years ago

5 0

Answer:

...

Step-by-step explanation:

1. B

angle A is 63 since 27+90= 117, 180-117= 63 (since a straight line is 180°)

2. 7x + 10 = 150 (since they are vertical angles)

7x = 140

x = 20

now plug in 7(20) +10

140+10=150

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Line m passes through the points (-4, 3) and (-4, 7). What is the slope of the line that is parallel to line m?

Lina20 [59]

The line has no slope. Slope doesn't exist.

7 0

3 years ago

Four brothers have ages which are consecutive even integers. If the product of the ages of the two middle brothers is 528, how o

exis [7]

Answer:

The oldest brother is of age $26$ years.

Step-by-step explanation:

As the age of four brothers are consecutive even integers.

We assume that the ages are $x,(x+2),(x+4),(x+6)$ as their respective ages.

And the age of the youngest brother $x$ yrs.

Age of the oldest brother $(x+6)$ yrs.

According to the question

Product of two middle brother that is $(x+2)(x+4) =528$

So we will arrange this in our equation and solve the quadratic.

$(x+2)(x+4) =528$

$x^{2}+4(x)+2(x)+8 =528$

$x^{2}+4(x)+2(x)+8-528=0$

$x^{2}+6(x)-520=0$

Solving the quadratic by using middle term splitting or directly with quadratic formula we can find the value of 'x' .

Here it is solved with quadratic formula:

Comparing with standard equation $ax^{2}+b(x)+c=0$ ,here $a=1,b=6\ and\ c=-520$ .

$x= \frac{-b \pm \sqrt{b^2-4ac} }{2a} = \frac{-6 \pm \sqrt{6^2-4\times \ (-520)} }{2\times 1}$

$x=20,-26$

We will work with the positive value of (x) so the the age of the youngest brother $=(x)=20$ yrs.

And the age of the the oldest brother $=(x+6)=(20+6)=26$ years.

The age difference is of $(26-20)=6$ years.

4 0

4 years ago

ABCD is a kite, find the length of BD

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3 years ago

Sibal started with $500 in a bank account that does not earn interest. In the middle of every month, she withdraws 1/5 of the ac

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4/5 of the original amount at the start of the month will remain. The amount at the start of every month will change. Thus:
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5 0

4 years ago

there are 20 ounces of water in a glass. someone drinks 55%of the water. how many ounces of water is left?

dimulka [17.4K]

Given:
20 ounces of water
someone finishes 55% of water
What is left?

20 × 0.55 (55% = $\frac{55}{100}$ = 0.55)
11

20 - 11 = 9
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5 0

3 years ago