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2 years ago

Don’t know how to do this

Mathematics

1 answer:

garik1379 [7]2 years ago

6 0

I’m Kendall and when do you have to turn this in by

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Set a different numbers that give a mean of 17.25

Ivahew [28]

Here is a set of 5 numbers that give a mean of 17.25.

Answer:
14, 11, 16, 21, 24.25

4 0

1 year ago

For what values of x is the following equation satisfied : 3x+9 = 21+7x ?

olya-2409 [2.1K]

First of all, the first power of 'x' is the highest power in the whole equation,
so we only expect one solution.

You said that 3x+9 = 21+7x 

Subtract 3x from each side:

9 = 21 + 4x

Subtract 21 from each side:

-12 = 4x

Divide each side by 4 :

-3 = x 

4 0

3 years ago

Read 2 more answers

Solve the inequality. 5q + 22-13

kirill115 [55]

Answer:

The answer is 5q + 9.

Step-by-step explanation:

1) Collect like terms.

$5q + (22 - 13)$

2) Simplify.

$5q + 9$

hence, the answer is 5q + 9.

6 0

2 years ago

2x(squared) + 23x-19=0

Helen [10]

Use quadratic formula

for ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^2-4ac} }{2a}$

given
2x^2+23x-19=0
a=2
b=23
c=-19

x= $\frac{-23+/- \sqrt{23^2-4(2)(-19)} }{2(2)}$
x= $\frac{-23+/- \sqrt{529-152} }{4}$
x= $\frac{-23+/- \sqrt{377} }{4}$

x= $\frac{-23+ \sqrt{377} }{4}$ or $\frac{-23- \sqrt{377} }{4}$

7 0

2 years ago

Triangle JKL is transformed to create triangle J'K'L'. The angles in both triangles are shown.

Margaret [11]

Answer:

The correct option is 3.

Step-by-step explanation:

Triangle JKL is transformed to create triangle J'K'L'. The angles in both triangles are shown.

J = 90°, J' = 90°

K = 65°, K' = 65°

L = 25°, L' = 25°

In a rigid transformation the image and pre-image are congruent. Reflection, translation and rotation are rigid transformation.

In a non rigid transformation the image and pre-image are similar. Dilation is a non rigid transformation.

In a rigid or a nonrigid transformation, the corresponding angles are same. If the corresponding sides are same, then it is a rigid transformation and if the corresponding sides are proportional, then it is a non rigid transformation.

It can be a rigid or a nonrigid transformation depending on whether the corresponding side lengths have the same measures.

Therefore option 3 is correct.

6 0

2 years ago

Read 2 more answers