2 years ago

Jack bought 4 umbrellas each costing $17 he bought 6 hats each costing $8 how much did jack spend in all

Mathematics

1 answer:

photoshop1234 [79]2 years ago

4 0

116 dollars 4x17 6x8 add em together

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Multiplying binomials (×+2) (×-9)

musickatia [10]

Answer:

x² -7x -18

Step-by-step explanation:

In algebra, a binomial consists solely of a sum or subtraction of two monomials.

To solve the multiplication of two binomials we have to multiply term by term and then simplify common terms.

(x + 2)(x - 9) = x(x) + x(-9) +2(x) + 2(-9) = x² -9x + 2x -18 = x² -7x - 18

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3 years ago

4. How fast was a driver going if the car left skid marks that were 32 feet long on dry concrete? (The coefficient of friction i

Monica [59]

Answer:

$v_{o} \approx 31.247\,mph$

Step-by-step explanation:

The deceleration experimented by the car is the product of kinetic coefficient of friction and gravitational constant:

$a = \mu_{k}\cdot g$

$a = (1.02)\cdot \left(32.174\,\frac{ft}{s^{2}} \right)$

$a = 32.817\,\frac{ft}{s^{2}}$

The initial speed is computed from the following kinematic expression:

$v^{2} = v_{o}^{2} - 2\cdot a \cdot \Delta s$

$v_{o} = \sqrt{v^{2}+2\cdot a\cdot \Delta s}$

$v_{o} = \sqrt{\left(0\,\frac{ft}{s} \right)^{2}+2\cdot \left(32.817\,\frac{ft}{s^{2}} \right)\cdot (32\,ft)}$

$v_{o}\approx 45.829\,\frac{ft}{s}$

$v_{o} \approx 31.247\,mph$

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3 years ago

Noreen can walk 1/3 mile in 12 minutes. What is her average speed in miles per hour?

Ksivusya [100]

Answer:

2 miles per hour

Step-by-step explanation:

12 minutes is .2 hours

1/3 divided by .2 is 1.66666667 round to nearest whole number and get 2

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2 years ago

Read 2 more answers

Cy) = 3y - 4<br> d(y) = 3 – 2y<br> Find (c. d)(y).

Sati [7]

It is the middle because the top and bottom don’t add up or make sense

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2 years ago

Help me please! Will give 20 Brainly points!

Vitek1552 [10]

The first one would be 5 and the second is 3 thanks and mark as brainiliest

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2 years ago