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3 years ago

Can Somebody Solve This ? (Show Work!)

Mathematics

1 answer:

taurus [48]3 years ago

7 0

4(5-2x) - 3x ≥ 8x-113

20-4x -3x≥ 8x-113

20-7x≥ 8x-113

20+113≥ 8x+7x

133≥ 15x

15x≤ 133

x≤ 133/15

x≤ 8.86

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Add and subtract fractions with negative signs. -4/5 + 6/5=?

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Answer:

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Step-by-step explanation:

when adding a positive to a negative, you can reverse the order so that you can remove the addition sign:

so instead of -4/5 + 6/5

you can make it 6/5 - 4/5 which equals 2/5 or .4

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Find the unknown measure of the rectangle.<br> Area =28 square centimeters <br>Height =?

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Height of a parallelogram is half it's base.if it's area is 200 sq cm.find it's height and base.

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Step-by-step explanation:

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4 years ago

Help....................................DDDDDDDDDDDDDDDDDDDDDDDDDDD

m_a_m_a [10]

Answer:

Step-by-step explanation:

a). Since, ΔABC ~ ΔWYZ

Their corresponding sides will be proportional.

$\frac{AB}{WY}=\frac{BC}{YZ}= \frac{AC}{WZ}$

$\frac{194}{WY}=\frac{BC}{1}= \frac{130}{WZ}$ --------(1)

By applying Pythagoras theorem in ΔABC,

AB² = AC² + BC²

BC² = AB² - AC²

BC² = (194)² - (130)²

BC² = 20736

BC = 144

From equation (1)

$\frac{194}{WY}=\frac{144}{1}= \frac{130}{WZ}$

$\frac{194}{WY}=\frac{144}{1}$

WY = $\frac{194}{144}$

WY = $\frac{97}{72}$ = 1.35

$\frac{144}{1}= \frac{130}{WZ}$

WZ = $\frac{130}{144}$

WZ = $\frac{65}{72}$ = 0.90

b). tan(A) = $\frac{\text{Opposite side}}{\text{Adjacent side}}$

= $\frac{144}{130}$

= $\frac{72}{65}$

Since, ΔABC ~ ΔWYZ,

∠A ≅ ∠W

Therefore, tangent of angle A and angle W will measure $\frac{72}{65}$ .

8 0

3 years ago