All categories

2 years ago

What is the value of b if -7+b= -8

Mathematics

1 answer:

Mars2501 [29]2 years ago

7 0

Answer:

b = -1

Step-by-step explanation:

-7+b= -8

Add 7 to each side

-7+7+b= -8+7

b = -1

You might be interested in

Write a simplified polynomial expression in standard form to represent the area of the rectangle below.

enyata [817]

A = w × l
A = (2x - 4) (x + 5)
Next Step Foil
2x² + 10x - 4x -20
2x² + 6x - 20

3 0

2 years ago

Read 2 more answers

Y varies directly as x. If x = 15 when y = 20, find x when y = 30.

Goryan [66]

Answer:

22.5

Step-by-step explanation:

y=kx

20=k15

k=1•33

30=1•33x

x=22•5

5 0

2 years ago

Simplify the difference quotient f(x)=x^2+9

Setler [38]

Answer:

sorry is its complicated

Step-by-step explanation:

Find the components of the definition.

(

)

−

(

)

−

Plug in the components.

(

)

−

(

)

−

(

−

)

8 0

3 years ago

Zachary created a garden that measured7 x 6.5 feet. How many 8-foot rolls of fencing will he need to completely surround the gar

lutik1710 [3]

Answer:

6 rolls

Step-by-step explanation:

7 × 6.5 is 45.5

45.5 ÷ 8 is 5.6875

5.6875≈6

So 6!

8 0

2 years ago

Two studies were done on the same set of data, where study I was a one-sided test and study II was a two-sided test. The p-value

mixer [17]

Answer:

$0.060$

Step-by-step explanation:

In a two tailed test the probability of occurrence is the total area under the critical range of values on both the sides of the curve (negative side and positive side)

Thus, the probability values for a two tailed test as compared to a one tailed test is given by the under given relation -

$p-value = P(Z< -\frac{\alpha }{2} )+P(Z >\frac{\alpha}{2})$ \

Here $P\frac{\alpha}{2} = 0.030$

Substituting the given value in above equation, we get -

probability values for a two tailed test

= $0.030 + 0.030\\= 0.060$

4 0

2 years ago